US20130274072A1 - Training apparatus - Google Patents
Training apparatus Download PDFInfo
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- US20130274072A1 US20130274072A1 US13/861,863 US201313861863A US2013274072A1 US 20130274072 A1 US20130274072 A1 US 20130274072A1 US 201313861863 A US201313861863 A US 201313861863A US 2013274072 A1 US2013274072 A1 US 2013274072A1
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- United States
- Prior art keywords
- engagement
- receiving space
- biasing
- protective membrane
- convex
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
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- 230000013011 mating Effects 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 33
- 230000001681 protective effect Effects 0.000 claims description 33
- 230000008878 coupling Effects 0.000 claims description 30
- 238000010168 coupling process Methods 0.000 claims description 30
- 238000005859 coupling reaction Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 16
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Images
Classifications
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- A63B69/004—
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/20—Punching balls, e.g. for boxing; Other devices for striking used during training of combat sports, e.g. bags
- A63B69/215—Anthropomorphic devices
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/20—Punching balls, e.g. for boxing; Other devices for striking used during training of combat sports, e.g. bags
- A63B69/22—Punching balls, e.g. for boxing; Other devices for striking used during training of combat sports, e.g. bags mounted on, or suspended from, a fixed support
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/34—Tackling, blocking or grappling dummies, e.g. boxing or wrestling or American- football dummies
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/024—Supports, e.g. poles with screws or pins in the earth
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
- A63B71/023—Supports, e.g. poles
- A63B2071/026—Supports, e.g. poles stabilised by weight
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2244/00—Sports without balls
- A63B2244/10—Combat sports
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/331—Breaking boards or holders therefore, i.e. devices for destroying exercises
Definitions
- This invention relates to martial arts and more particularly relates to a training apparatus for training a martial artist in breaking a joint.
- the present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available training apparatus. Accordingly, the present invention has been developed to provide an apparatus, system, and method for martial arts training that overcomes many or all of the above-discussed shortcomings in the art.
- the training apparatus in one embodiment, includes a first member, a second member, and a biasing member.
- the first member has a concave engagement end disposed opposite an extension end.
- the concave engagement end includes a recess having a substantially concave surface defining an engagement receiving space.
- the engagement receiving space is at least partially spherical.
- the second member includes a convex engagement end disposed opposite an extension end.
- the convex engagement end has a substantially convex surface and the substantially convex surface is at least partially spherical.
- the convex engagement end of the second member is matingly receivable within the engagement receiving space of the first member.
- the biasing member is engaged with the first member.
- the biasing member biases the engagement receiving space of the first member in a mating engagement within the convex engagement end of the second member.
- the convex engagement end of the second member is laterally displaceable from within the engagement receiving space in the first member in response to a displacing pressure applied to one of the first member and the second member.
- the biasing member is coupled to a coupling member at a first end of the biasing member with the coupling member extending through a first orifice disposed through the first member and a second orifice disposed through the second member.
- the coupling member engages the first member to bias the convex engagement end of the second member within the engagement receiving space of the first member.
- At least one of the first orifice and the second orifice has an axial area sufficient to allow lateral displacement of the first member with respect to the second member without interfering with the coupling member.
- the apparatus in another embodiment, includes a supporting member and a base member.
- the supporting member is positioned between the base member and the second member with the base member supporting the supporting member.
- the biasing member biases the first member in a direction of the supporting member.
- the biasing member is coupled to a base member that is engaged with a floor surface.
- the base member is weighted.
- a biasing force of the biasing member is adjustable. In such an embodiment, adjustment of the biasing force adjusts the displacing pressure required to laterally displace the convex engagement end of the second member is from within the engagement receiving space.
- the apparatus includes a protective membrane covering the first member and the second member.
- the protective membrane protects an appendage of a user when the displacing pressure is applied to one of the first member and the second member.
- the protective membrane is a material having a durometer sufficient to absorb a blow from a user without injuring the user.
- the protective membrane is shaped substantially similar to at least a portion of a human.
- the apparatus includes a frame structure and a protective membrane.
- the frame structure is coupled to the first member and includes at least one extending member extending to a height of approximately an average adult's chest.
- the frame structure supports the protective membrane and the protective membrane is shaped substantially similar to an adult's chest, torso, and legs.
- FIG. 1 depicts a medial view of a human knee joint in accordance with one embodiment of the present subject matter
- FIG. 2 depicts a perspective view of one embodiment of a training apparatus in accordance with one embodiment of the present subject matter
- FIG. 3 depicts a cutaway view taken along line A-A of the training apparatus of FIG. 1 in accordance with one embodiment of the present subject matter
- FIG. 4 depicts an enlarged cutaway view of one embodiment of a re-breakable joint in accordance with one embodiment of the present subject matter.
- FIG. 5 depicts an exploded view of one embodiment of a re-breakable joint in accordance with one embodiment of the present subject matter.
- the present subject matter is directed to a martial arts training device which may be used to train the martial artist in the proper technique.
- the device simulates a particular body part of a human such as a human's knee. The device can be used over and over again without risk of injury to an opponent.
- a common attack point is the user's knee and martial artists train in the proper way to inflict injury to their opponents knee.
- One technique known as a knee joint kick, is a stomping kick aimed at the opponents knee. This technique requires very little force to break the user's knee, typically less than 20 lbs of pressure. Because of the extreme risk to an opponent's knee, the technique should not be practiced with another human. Rather, the technique should be practiced with a “dummy” having a knee joint that simulates the movement and function of an actual human knee.
- FIG. 1 depicts a medial view of one embodiment of a human knee joint 100 showing its anatomical features.
- a human knee joint 100 includes a lower extremity 102 of a femur bone 104 which rests on an upper extremity 106 of a tibia bone 108 .
- Articular cartilage 110 and a meniscus 112 is positioned between the lower extremity 102 of the femur bone 104 and the upper extremity 108 of the tibia bone 108 .
- a lateral collateral ligament 114 and a medial collateral ligament 116 hold the femur 104 in position with respect to the tibia 108 and keep the two bones from moving from side to side.
- An anterior cruciate ligament 118 and a posterior cruciate ligament 120 also hold the femur 104 in position with respect to the tibia 108 and keep the two bones from moving forward or rearward with respect to each other.
- the quadriceps tendon 126 and the patellar tendon 128 hold the patella 130 in place and provide some structural support to keep the tibia 108 in position with respect to the femur 104 .
- an attacker may strike either the femur 104 or the tibia 108 from the side with sufficient force to cause either the femur 104 or the tibia 108 to be displaced with respect to the other bone in the direction of arrows 122 .
- the victim may suffer serious injury to the lateral collateral ligament 114 , the medial collateral ligament 116 , or both.
- the displacement of the tibia 108 with respect to the femur 104 may also be sufficient to tear the anterior cruciate ligament 118 and/or the poster cruciate ligament 120 .
- a strike to the front or back portion of either the tibia 108 or the femur 104 may displace the tibia 108 or the femur 104 in the direction indicated by arrows 124 .
- the victim When attacked from the front or back, the victim may suffer an injury to the anterior cruciate ligament 118 and/or the posterior cruciate ligament 120 . Such an attack may also result in an injury to the quadriceps tendon 126 and/or the patellar tendon 128 .
- an attack is not limited to striking the tibia 108 or the femur 104 .
- certain attacks may focus on the entire knee joint 100 itself.
- the attacker's foot, leg, elbow, hand, etc. may strike both the femur 104 and the tibia 108 to displace one or the other laterally.
- lateral displacement includes laterally displacing one element with respect to another element in any lateral direction away from a common axis between the two elements.
- a training device should include replicated bones that are laterally displaceable as they are with the human knee joint 100 .
- FIG. 2 depicts a perspective view of one embodiment of a training apparatus 200 in accordance with the present subject matter.
- the training apparatus 200 includes a base member 202 , a bracing structure 203 , a frame structure 302 ( FIG. 3 ), a training dummy 206 , and a protective membrane 204 .
- the base member 202 is a substantially planar piece of material (i.e., wood, metal, plastic, etc.) positionable on a floor or other flat surface.
- the bracing structure 203 includes a vertical member 208 and a horizontal member 210 .
- the vertical member 208 is coupled to and extends vertically from the base member 202 to a position substantially higher than a height of the training dummy 206 .
- the horizontal member 210 is coupled to the vertical member 208 at a position opposite the base member 202 .
- the horizontal member 210 extends over the training dummy 206 such that the training dummy is positioned between the base member 202 and the horizontal member 210 .
- the bracing structure 203 includes an extension 212 that extends horizontally at right angles from the horizontal member 210 .
- Chains 214 and 216 are coupled to the extension 212 at one end of the chains 214 and 216 and to the shoulders 218 and 220 of the training dummy 206 at the other end of the chains 214 and 216 .
- FIG. 2 depicts the chains 214 and 216 as being attached to the shoulders 218 and 220 of the training dummy 206 , one of skill in the art will recognize that in other embodiments, the chains 214 and 216 may be coupled to other portions of the training dummy 206 .
- a single chain may be coupled to the horizontal member at one end of the chain and to the neck portion 238 of the training dummy 206 at the other end of the chain.
- the cooperation of the base member 202 , the bracing structure 203 , and the chains 214 and 216 support the training dummy 206 and maintains it in a substantially upright position as shown in FIG. 2 .
- the base member 202 , the bracing structure 203 , and the chains 214 and 216 keep the training dummy from tipping over in one of the directions indicated by arrows 222 - 228 .
- the apparatus 200 includes a plurality of fasteners (not shown) that couple the base member 202 to the floor.
- a fastener is positioned through the base member 202 at each corner of the base member 202 and fastened to the floor.
- the base member 202 is made of a material having sufficient weight to keep the apparatus 200 positioned in an upright position as shown in FIG. 2 .
- external weights are positioned on the base member 202 to keep the apparatus 200 positioned in an upright position.
- each leg 230 and 232 of the training dummy 206 is coupled to the base member 202 . Attachment of the legs 230 , 232 of the training dummy 206 keeps the training dummy 206 from swinging when a user attacks the training dummy 206 . In other embodiments, each leg 230 and 232 is weighted with sufficient weight to inhibit swinging of the training dummy 206 when the training dummy 206 is attacked by a user. In such an embodiment, the training dummy 206 may hang from the chains 214 and 216 without being coupled to the base member 202 at each leg 230 , 232 .
- the training dummy 206 in one embodiment, includes a frame structure 302 ( FIG. 3 ) covered with a protective membrane 204 .
- a trained martial artist can kick at 30 to 40 miles per hour. Focusing the kick onto a relatively small area of contact, the kick can create forces in excess of 1000 pounds of pressure.
- a human bone can break with as little as 75 pounds of pressure. Accordingly, if the martial artist were to kick or punch the relatively rigid frame structure 302 , the martial artists risks injury to themselves. Therefore, in certain embodiments, the frame structure 302 is covered with a protective membrane 204 that absorbs the force of the martial artists kick or other blow without injuring the martial artist.
- the material comprising the protective membrane 204 may be a foam material.
- foam material One of skill in the art will recognize that there are three performance tests for foam materials, first the resiliency of the foam material, second the density rating of the foam, and third the indentation load deflection rating of the foam.
- the material selected as the protective membrane 204 should have a high resiliency.
- high resilience foam is a foam that has a very rapid recovery from extreme compression and a fairly linear increase in resistance to compression per unit of penetration.
- the density rating of a foam material is a measurement of how much weight in pounds the foam can handle per cubic foot. This measurement indicates the strength of the foam. As discussed above, a trained martial artist can kick with forces in excess of 1000 pounds of pressure. If a material is selected for the protective membrane 204 that has a lower density rating, the material may compress too much and the user may incur an injury by compressing the protective membrane 204 to the point that the user's leg, foot, arm, or first contacts the frame structure 302 . Accordingly, the density rating for the material comprising the protective membrane 204 should have a density rating that can accommodate forces in excess of 1000 pounds of pressure.
- the indentation load deflection or indentation force deflection (“IFD”) rating of a foam is defined by the PFA as the amount of force, in pounds, required to indent a fifty square inch, round indentor foot into a predefined foam specimen a certain percentage of the specimen's total thickness.
- the IFD of a particular foam is specified as a number of pounds at a specific deflection percentage on a specific height foam sample, e.g., 25 pounds/50 square inches at 25% deflection on a four inch thick piece of foam.
- the IFD is a measurement of a foams firmness or stiffness.
- the material chosen for the protective membrane 204 should be firm enough to absorb the force of the user's kick or punch without compressing to the point that the user's leg, foot, arm, or first contacts the frame structure 302 .
- the material that makes up the protective membrane 204 is too firm, the user risks injury from the protective membrane 204 itself. Accordingly, in one embodiment, the material of the protective membrane 204 is selected to reduce the risk of injury from the frame structure 302 and from the protective membrane 204 itself.
- the protective membrane 204 is shaped substantially similar to at least a portion of a human.
- the protective membrane 204 is shape like a chest 234 , torso 236 , and legs 230 , 232 of a human.
- the protective membrane 204 may include arms, hands, feet, and a head.
- the protective membrane may be shaped to only include a specific body part.
- the protective membrane 204 may be shaped like a single leg, a single arm, or any other portion of a human.
- FIG. 3 depicts a cutaway view taken along line A-A of one embodiment of a training apparatus 200 in accordance with the present subject matter.
- the bracing structure 203 has been removed for clarity.
- the training apparatus 200 includes a training dummy 206 having a frame structure 302 with a re-breakable joint 314 and a protective membrane 204 .
- the frame structure 302 includes a plurality of vertical supports 304 and a plurality of horizontal supports 306 .
- the vertical supports 304 and the horizontal supports 306 may be solid elongated support rods made of material such as metal, wood, plastic, etc.
- the vertical supports 304 and the horizontal supports 306 may be pipes or tubular members made of conventional materials such as metal, ABS or vinyl plastics, etc.
- the vertical supports 304 and the horizontal supports 306 should be made of a material having a structural integrity sufficient to maintain the training dummy 206 in a substantially upright position and should withstand the blows administered to the training dummy 206 without breaking.
- the vertical supports 304 and the horizontal supports 306 are coupled to one another by welding, gluing or otherwise coupling each support to another support as is known in the art.
- the vertical supports 304 and the horizontal supports 306 are coupled to one another by a number of pairing members 308 .
- vertical support 304 b is coupled to vertical support 304 c by pairing member 308 a.
- Vertical supports 304 b and 304 c are also coupled to horizontal support 306 a by pairing member 308 a.
- pairing member 308 a is a T-type pairing member that facilitates coupling two supports (i.e., vertical support 304 b and vertical support 304 c ) along a common longitudinal axis 310 of the supports ( 304 b and 304 c ) and that facilitates coupling a third support (i.e., horizontal support 306 a ) at a right angle to the common longitudinal axis 310 of the first two supports (i.e., vertical support 304 b and vertical support 304 c ).
- vertical supports 304 b and 304 c and horizontal support 306 a may be dry fit within pairing member 308 a such that vertical supports 304 b and 304 c and horizontal support 306 a are removably coupled to pairing member 308 a.
- vertical supports 304 b and 304 c and horizontal support 306 a may be glued, welded, or otherwise permanently affixed to pairing member 308 a.
- pairing member 308 d is a minor image of pairing member 308 a. That is, pairing member 308 d is also a T-type pairing member that facilitates coupling two supports (i.e., vertical support 304 d and vertical support 304 e ) along a common longitudinal axis 312 of the supports ( 304 d and 304 e ) and that facilitates coupling a third support (i.e., horizontal support 306 a ) at a right angle to the common longitudinal axis 312 of the first two supports (i.e., vertical support 304 d and vertical support 304 e ).
- a third support i.e., horizontal support 306 a
- Pairing members 308 b and 308 c are elbow-type pairings that facilitate coupling two supports (i.e., vertical support 304 c and horizontal support 306 b and/or vertical support 304 d and horizontal support 306 b ) at right angles to one another.
- vertical support 304 c and horizontal support 306 b and/or vertical support 304 d and horizontal support 306 b may be dry fit within the respective pairing members 308 b and 308 c such that vertical support 304 c and horizontal support 306 b and/or vertical support 304 d and horizontal support 306 b are removably coupled.
- vertical support 304 c and horizontal support 306 b and/or vertical support 304 d and horizontal support 306 b may be glued, welded, or otherwise permanently affixed to respective pairing members 308 b and 308 c.
- vertical support 304 b is coupled to a re-breakable joint 314 at an end of vertical support 304 b opposite the end of vertical support 304 b that is coupled to the pairing member 308 a.
- vertical support 308 a is coupled to the re-breakable joint 314 at an end of the re-breakable joint 314 opposite the end of the re-breakable joint 314 that vertical support 308 a is coupled to the re-breakable joint 314 .
- the re-breakable joint 314 is further discussed below with reference to FIGS. 4 and 5 .
- a diameter of vertical supports 304 a and 304 b may be less than a diameter of the components that make up the re-breakable joint 314 .
- a reducer 316 a may be positioned between vertical support 304 a and the components that that make up the re-breakable joint 314 to facilitate coupling between vertical support 304 a and the components that that make up the re-breakable joint 314 .
- a reducer 316 b may be positioned between vertical support 304 b and the components that that make up the re-breakable joint 314 to facilitate coupling between vertical support 304 b and the components that that make up the re-breakable joint 314 .
- vertical support 304 a by virtue of its position within the training dummy 206 , simulates the tibia bone 108 (and fibula bone) of a human.
- vertical support 304 b by virtue of its position within the training dummy 206 , simulates the femur bone 106 of a human.
- FIG. 3 depicts the training apparatus 200 as having a re-breakable joint 314 in the right leg 230 of the training dummy 206 .
- the training apparatus 200 may include a re-breakable joint 314 in the left leg 232 of the training dummy 206 .
- both legs 230 and 232 of the training dummy 206 may include re-breakable joints 314 .
- the training dummy 206 may include additional re-breakable joints 314 such as shoulder, elbow, or wrist joints.
- FIG. 4 depicts an enlarged cutaway view of one embodiment of the re-breakable joint 314 .
- FIG. 5 depicts an exploded view of one embodiment of the re-breakable joint 314 .
- the re-breakable joint 314 includes a first member 402 , a second member 404 , and a biasing member 408 .
- the first member 402 in one embodiment, includes a concave engagement end 410 positioned opposite an extension end 412 .
- the concave engagement end 410 includes a recess 414 ( FIG. 5 ) having a substantially concave surface 416 defining an engagement receiving space 418 ( FIG. 5 ).
- the engagement receiving space 418 is at least partially spherical.
- the second member 404 in an exemplary embodiment, includes a convex engagement end 420 disposed opposite an extension end 422 .
- the convex engagement end 420 having a substantially convex surface 424 .
- the substantially convex surface 424 is at least partially spherical and the convex engagement end 420 of the second member 404 is matingly receivable within the engagement receiving space 418 of the first member 402 . That is, in certain embodiments, the convex surface 424 of the second member nests with the substantially concave surface 416 defining the engagement receiving space 418 of the first member 402 .
- the first member 402 having the engagement receiving space 418 is depicted above the second member 404 having the convex surface 424 .
- the position of the first member 402 and the second member 404 may be reversed. That is, in one embodiment, the top member may include a convex surface and the bottom member may include a concave engagement receiving space.
- a biasing member 408 is engaged with the first member 402 and biases the engagement receiving space 418 of the first member 402 in a mating engagement with the convex engagement end 420 of the second member 404 .
- the biasing member 408 is depicted as a spring. In other embodiments, the biasing member may be an elastomeric material that is able to stretch and then regain its original shape.
- the biasing member 408 is coupled to a first coupling member 426 (a first eyebolt) that extends through an orifice 428 in the second member 404 and through an orifice 430 in the first member 402 .
- a washer 432 and a nut 434 are threadedly engaged with threads 436 on the first coupling member 426 to engage the first coupling member 426 with the first member 402 .
- the washer 432 and nut 434 keeps the first coupling member 426 from being removed from orifices 428 and 430 in the first and second members 402 and 404 respectively.
- a second coupling member 438 (a second eyebolt) is coupled to the base member 202 with a washer 442 and a nut 444 threadedly engaged with threads 446 on the second eyebolt 438 .
- the second coupling member 438 is also coupled to the biasing member 408 . Because the second coupling member 438 is coupled to the base member 202 and the biasing member is coupled to both the first coupling member 426 and the second coupling member 436 , the biasing member 408 pulls the first coupling member 426 in the direction indicated by arrow 440 . The first eyebolt 426 in turn pulls the first member 402 downward in the direction indicated by arrow 440 .
- Vertical support 304 a (a supporting member) supports the second member 404 and keeps it from being pulled downward.
- the convex surface 424 of the second member 404 is forced into the concave surface 416 of the engagement receiving space 418 in the first member 402 by pressure from the biasing member 408 .
- the biasing force applied by the biasing member 408 may be adjusted by threadedly adjusting either nut 434 on the first coupling member 426 , nut 444 on the second coupling member 436 , or both.
- one or both of the orifice 428 in the second member 404 and the orifice 430 in the first member 402 may be substantially larger than the diameter of the first coupling member 426 to allow the second member 404 and or the first member 402 to move laterally with respect to one another as indicated by arrows 446 . That is, in one embodiment, at least one of the first orifice 430 in the first member 402 and the second orifice 428 in the second member 404 has an axial area sufficient to allow lateral displacement of the first member 402 with respect to the second member 404 without interfering with the first coupling member 426 .
- the first member 402 and/or the second member 404 are laterally movable in response to pressure applied to vertical support 304 a, vertical support 304 b, and/or the re-breakable joint 314 itself. Such pressure may come from a kick or punch to vertical support 304 a, vertical support 304 b, and/or the re-breakable joint 314 . Accordingly, in certain embodiments, the convex engagement end 420 of the second member is laterally displaceable from within the engagement receiving space 418 in the first member 402 in response to a displacing pressure applied to one of the first member 402 and the second member 404 . Such displacing pressure may be directly applied to the first or second member 402 , 404 , or may be transferred from pressure applied to the vertical supports 304 a and 304 b.
- the biasing member 408 pulls the first member 402 back into alignment with the second member 404 such that the convex surface 424 of the second member 404 is positioned within the concave surface 416 of the engagement receiving space 418 in the first member 402 .
Abstract
An apparatus, system, and method are disclosed for a training apparatus. The apparatus includes a first member, a second member, and a biasing member. The first member has a concave engagement end opposite an extension end. The concave engagement end includes a recess defining an at least partially spherical engagement receiving space. The second member includes a convex engagement end disposed opposite an extension end. The convex engagement end has a substantially convex surface which is matingly receivable within the engagement receiving space of the first member. The biasing member is engaged with the first member and biases the engagement receiving space of the first member in a mating engagement within the convex engagement end of the second member. The convex engagement end of the second member is laterally displaceable from within the engagement receiving space in the first member in response to a displacing pressure.
Description
- This application claims the benefit of U.S. Provisional Patent Application No. 61/623,302 entitled “TRAINING APPARATUS” and filed on Apr. 12, 2012 for Brenda Flanders, which is incorporated herein by reference.
- This invention relates to martial arts and more particularly relates to a training apparatus for training a martial artist in breaking a joint.
- In martial arts (karate, judo, etc.) individuals are trained to inflict injuries on others. Obviously, inflicting injury on another individual makes martial arts training difficult because such infliction knee would be injurious to the other individual. A common attack point is the user's knee and martial artists train in the proper way to inflict injury to their opponent's knee. One technique, known as a knee joint kick, is a stomping kick aimed at the opponent's knee. This technique requires very little force to break the user's knee, typically less than 20 lbs of pressure. Because of the extreme risk to an opponent's knee, the technique should not be practiced with another human.
- From the foregoing discussion, it should be apparent that a need exists for an apparatus, system, and method that trains a martial artist in proper technique. Beneficially, such an apparatus, system, and method would train the martial artist without risking injury to the martial artist or his/her opponent.
- The present invention has been developed in response to the present state of the art, and in particular, in response to the problems and needs in the art that have not yet been fully solved by currently available training apparatus. Accordingly, the present invention has been developed to provide an apparatus, system, and method for martial arts training that overcomes many or all of the above-discussed shortcomings in the art.
- The training apparatus, in one embodiment, includes a first member, a second member, and a biasing member. The first member has a concave engagement end disposed opposite an extension end. The concave engagement end includes a recess having a substantially concave surface defining an engagement receiving space. The engagement receiving space is at least partially spherical. The second member includes a convex engagement end disposed opposite an extension end. The convex engagement end has a substantially convex surface and the substantially convex surface is at least partially spherical. The convex engagement end of the second member is matingly receivable within the engagement receiving space of the first member. The biasing member is engaged with the first member. The biasing member biases the engagement receiving space of the first member in a mating engagement within the convex engagement end of the second member. The convex engagement end of the second member is laterally displaceable from within the engagement receiving space in the first member in response to a displacing pressure applied to one of the first member and the second member.
- In certain embodiments, the biasing member is coupled to a coupling member at a first end of the biasing member with the coupling member extending through a first orifice disposed through the first member and a second orifice disposed through the second member. In such an embodiment, the coupling member engages the first member to bias the convex engagement end of the second member within the engagement receiving space of the first member.
- In other embodiments, at least one of the first orifice and the second orifice has an axial area sufficient to allow lateral displacement of the first member with respect to the second member without interfering with the coupling member.
- In another embodiment, the apparatus includes a supporting member and a base member. The supporting member is positioned between the base member and the second member with the base member supporting the supporting member. The biasing member biases the first member in a direction of the supporting member. In one embodiment, the biasing member is coupled to a base member that is engaged with a floor surface. In another embodiment, the base member is weighted.
- In certain embodiments, a biasing force of the biasing member is adjustable. In such an embodiment, adjustment of the biasing force adjusts the displacing pressure required to laterally displace the convex engagement end of the second member is from within the engagement receiving space.
- In one embodiment, the apparatus includes a protective membrane covering the first member and the second member. The protective membrane protects an appendage of a user when the displacing pressure is applied to one of the first member and the second member. In an exemplary embodiment, the protective membrane is a material having a durometer sufficient to absorb a blow from a user without injuring the user. In another embodiment, the protective membrane is shaped substantially similar to at least a portion of a human.
- In yet another embodiment, the apparatus includes a frame structure and a protective membrane. The frame structure is coupled to the first member and includes at least one extending member extending to a height of approximately an average adult's chest. The frame structure supports the protective membrane and the protective membrane is shaped substantially similar to an adult's chest, torso, and legs.
- Reference throughout this specification to features, advantages, or similar language does not imply that all of the features and advantages that may be realized with the present invention should be or are in any single embodiment of the invention. Rather, language referring to the features and advantages is understood to mean that a specific feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention. Thus, discussion of the features and advantages, and similar language, throughout this specification may, but do not necessarily, refer to the same embodiment.
- Furthermore, the described features, advantages, and characteristics of the invention may be combined in any suitable manner in one or more embodiments. One skilled in the relevant art will recognize that the invention may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the invention.
- These features and advantages of the present invention will become more fully apparent from the following description and appended claims, or may be learned by the practice of the invention as set forth hereinafter.
- In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:
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FIG. 1 depicts a medial view of a human knee joint in accordance with one embodiment of the present subject matter; -
FIG. 2 depicts a perspective view of one embodiment of a training apparatus in accordance with one embodiment of the present subject matter; -
FIG. 3 depicts a cutaway view taken along line A-A of the training apparatus ofFIG. 1 in accordance with one embodiment of the present subject matter; -
FIG. 4 depicts an enlarged cutaway view of one embodiment of a re-breakable joint in accordance with one embodiment of the present subject matter; and -
FIG. 5 depicts an exploded view of one embodiment of a re-breakable joint in accordance with one embodiment of the present subject matter. - Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.
- Furthermore, the described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided for a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
- In martial arts (karate, judo, etc.) individuals are trained to inflict injuries on others. Obviously, inflicting injury on another individual makes martial arts training difficult because such infliction knee would be injurious to the other individual. Accordingly, the present subject matter is directed to a martial arts training device which may be used to train the martial artist in the proper technique. The device, as further described below, simulates a particular body part of a human such as a human's knee. The device can be used over and over again without risk of injury to an opponent.
- A common attack point is the user's knee and martial artists train in the proper way to inflict injury to their opponents knee. One technique, known as a knee joint kick, is a stomping kick aimed at the opponents knee. This technique requires very little force to break the user's knee, typically less than 20 lbs of pressure. Because of the extreme risk to an opponent's knee, the technique should not be practiced with another human. Rather, the technique should be practiced with a “dummy” having a knee joint that simulates the movement and function of an actual human knee.
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FIG. 1 depicts a medial view of one embodiment of a human knee joint 100 showing its anatomical features. A human knee joint 100 includes alower extremity 102 of afemur bone 104 which rests on anupper extremity 106 of atibia bone 108.Articular cartilage 110 and ameniscus 112 is positioned between thelower extremity 102 of thefemur bone 104 and theupper extremity 108 of thetibia bone 108. Alateral collateral ligament 114 and a medialcollateral ligament 116 hold thefemur 104 in position with respect to thetibia 108 and keep the two bones from moving from side to side. An anterior cruciate ligament 118 and a posteriorcruciate ligament 120 also hold thefemur 104 in position with respect to thetibia 108 and keep the two bones from moving forward or rearward with respect to each other. Thequadriceps tendon 126 and thepatellar tendon 128 hold thepatella 130 in place and provide some structural support to keep thetibia 108 in position with respect to thefemur 104. - To inflict an injury to an opponent, an attacker may strike either the
femur 104 or thetibia 108 from the side with sufficient force to cause either thefemur 104 or thetibia 108 to be displaced with respect to the other bone in the direction ofarrows 122. When attacked from the side, the victim may suffer serious injury to thelateral collateral ligament 114, the medialcollateral ligament 116, or both. In certain circumstances, the displacement of thetibia 108 with respect to thefemur 104 may also be sufficient to tear the anterior cruciate ligament 118 and/or the postercruciate ligament 120. - A strike to the front or back portion of either the
tibia 108 or thefemur 104 may displace thetibia 108 or thefemur 104 in the direction indicated byarrows 124. When attacked from the front or back, the victim may suffer an injury to the anterior cruciate ligament 118 and/or the posteriorcruciate ligament 120. Such an attack may also result in an injury to thequadriceps tendon 126 and/or thepatellar tendon 128. - In certain embodiments, an attack is not limited to striking the
tibia 108 or thefemur 104. For example, certain attacks may focus on the entire knee joint 100 itself. In such an attack, the attacker's foot, leg, elbow, hand, etc. may strike both thefemur 104 and thetibia 108 to displace one or the other laterally. - The attacks described above typically involve displacing the
tibia 108 ortibia 108 laterally.Arrows tibia 108 ortibia 108 may be displaced in any of an infinite number of lateral directions i.e., 360° away from a common axis 1132 through thetibia 108 andfemur 104. Accordingly, as used herein, lateral displacement includes laterally displacing one element with respect to another element in any lateral direction away from a common axis between the two elements. - As just described, proper martial arts techniques for inflicting injury to a victim's knee involve lateral displacement of either the victim's
femur 104 or the victim'stibia 108. Thus, to properly train a martial artist in a proper attack technique, a training device should include replicated bones that are laterally displaceable as they are with the human knee joint 100. -
FIG. 2 depicts a perspective view of one embodiment of atraining apparatus 200 in accordance with the present subject matter. In certain embodiments, thetraining apparatus 200 includes abase member 202, a bracingstructure 203, a frame structure 302 (FIG. 3 ), atraining dummy 206, and aprotective membrane 204. - In certain embodiments, the
base member 202 is a substantially planar piece of material (i.e., wood, metal, plastic, etc.) positionable on a floor or other flat surface. The bracingstructure 203 includes avertical member 208 and ahorizontal member 210. Thevertical member 208 is coupled to and extends vertically from thebase member 202 to a position substantially higher than a height of thetraining dummy 206. Thehorizontal member 210 is coupled to thevertical member 208 at a position opposite thebase member 202. Thehorizontal member 210 extends over thetraining dummy 206 such that the training dummy is positioned between thebase member 202 and thehorizontal member 210. - In certain embodiments, the bracing
structure 203 includes anextension 212 that extends horizontally at right angles from thehorizontal member 210.Chains extension 212 at one end of thechains shoulders training dummy 206 at the other end of thechains FIG. 2 depicts thechains shoulders training dummy 206, one of skill in the art will recognize that in other embodiments, thechains training dummy 206. In certain embodiments, rather than twochains neck portion 238 of thetraining dummy 206 at the other end of the chain. - The cooperation of the
base member 202, the bracingstructure 203, and thechains training dummy 206 and maintains it in a substantially upright position as shown inFIG. 2 . For example, when the user attacks thetraining dummy 206 with a blow, thebase member 202, the bracingstructure 203, and thechains - In certain embodiments, the
apparatus 200 includes a plurality of fasteners (not shown) that couple thebase member 202 to the floor. For example, in one embodiment, a fastener is positioned through thebase member 202 at each corner of thebase member 202 and fastened to the floor. In other embodiments, thebase member 202 is made of a material having sufficient weight to keep theapparatus 200 positioned in an upright position as shown inFIG. 2 . In yet another embodiment, external weights (not shown) are positioned on thebase member 202 to keep theapparatus 200 positioned in an upright position. - In certain embodiments, each
leg training dummy 206 is coupled to thebase member 202. Attachment of thelegs training dummy 206 keeps thetraining dummy 206 from swinging when a user attacks thetraining dummy 206. In other embodiments, eachleg training dummy 206 when thetraining dummy 206 is attacked by a user. In such an embodiment, thetraining dummy 206 may hang from thechains base member 202 at eachleg - The
training dummy 206, in one embodiment, includes a frame structure 302 (FIG. 3 ) covered with aprotective membrane 204. A trained martial artist can kick at 30 to 40 miles per hour. Focusing the kick onto a relatively small area of contact, the kick can create forces in excess of 1000 pounds of pressure. One of skill in the art will recognize that a human bone can break with as little as 75 pounds of pressure. Accordingly, if the martial artist were to kick or punch the relativelyrigid frame structure 302, the martial artists risks injury to themselves. Therefore, in certain embodiments, theframe structure 302 is covered with aprotective membrane 204 that absorbs the force of the martial artists kick or other blow without injuring the martial artist. - In one embodiment, the material comprising the
protective membrane 204 may be a foam material. One of skill in the art will recognize that there are three performance tests for foam materials, first the resiliency of the foam material, second the density rating of the foam, and third the indentation load deflection rating of the foam. - Because the
training apparatus 200 is designed to be repeatedly struck by an individual, the material selected as theprotective membrane 204 should have a high resiliency. As defined by the Joint Industry Foam Standards and Guidelines published by the Polyurethane Foam Association (“PFA”), high resilience foam is a foam that has a very rapid recovery from extreme compression and a fairly linear increase in resistance to compression per unit of penetration. - The density rating of a foam material is a measurement of how much weight in pounds the foam can handle per cubic foot. This measurement indicates the strength of the foam. As discussed above, a trained martial artist can kick with forces in excess of 1000 pounds of pressure. If a material is selected for the
protective membrane 204 that has a lower density rating, the material may compress too much and the user may incur an injury by compressing theprotective membrane 204 to the point that the user's leg, foot, arm, or first contacts theframe structure 302. Accordingly, the density rating for the material comprising theprotective membrane 204 should have a density rating that can accommodate forces in excess of 1000 pounds of pressure. - The indentation load deflection or indentation force deflection (“IFD”) rating of a foam is defined by the PFA as the amount of force, in pounds, required to indent a fifty square inch, round indentor foot into a predefined foam specimen a certain percentage of the specimen's total thickness. The IFD of a particular foam is specified as a number of pounds at a specific deflection percentage on a specific height foam sample, e.g., 25 pounds/50 square inches at 25% deflection on a four inch thick piece of foam. The IFD is a measurement of a foams firmness or stiffness. One of skill in the art will recognize that the material chosen for the
protective membrane 204 should be firm enough to absorb the force of the user's kick or punch without compressing to the point that the user's leg, foot, arm, or first contacts theframe structure 302. Similarly, one of skill in the art will recognize that if the material that makes up theprotective membrane 204 is too firm, the user risks injury from theprotective membrane 204 itself. Accordingly, in one embodiment, the material of theprotective membrane 204 is selected to reduce the risk of injury from theframe structure 302 and from theprotective membrane 204 itself. - In certain embodiments, the
protective membrane 204 is shaped substantially similar to at least a portion of a human. For example, in the embodiment illustrated inFIG. 2 , theprotective membrane 204 is shape like achest 234,torso 236, andlegs protective membrane 204 may include arms, hands, feet, and a head. In yet another embodiment, the protective membrane may be shaped to only include a specific body part. For example, in one embodiment, theprotective membrane 204 may be shaped like a single leg, a single arm, or any other portion of a human. -
FIG. 3 depicts a cutaway view taken along line A-A of one embodiment of atraining apparatus 200 in accordance with the present subject matter. In the embodiment illustrated inFIG. 3 , the bracingstructure 203 has been removed for clarity. In certain embodiments, thetraining apparatus 200 includes atraining dummy 206 having aframe structure 302 with a re-breakable joint 314 and aprotective membrane 204. - In one embodiment, the
frame structure 302 includes a plurality of vertical supports 304 and a plurality of horizontal supports 306. In certain embodiments, the vertical supports 304 and the horizontal supports 306 may be solid elongated support rods made of material such as metal, wood, plastic, etc. In an exemplary embodiment, the vertical supports 304 and the horizontal supports 306 may be pipes or tubular members made of conventional materials such as metal, ABS or vinyl plastics, etc. In either embodiment, the vertical supports 304 and the horizontal supports 306 should be made of a material having a structural integrity sufficient to maintain thetraining dummy 206 in a substantially upright position and should withstand the blows administered to thetraining dummy 206 without breaking. - In certain embodiments, the vertical supports 304 and the horizontal supports 306 are coupled to one another by welding, gluing or otherwise coupling each support to another support as is known in the art. In another embodiment, the vertical supports 304 and the horizontal supports 306 are coupled to one another by a number of pairing members 308. For example, in certain embodiments,
vertical support 304 b is coupled tovertical support 304 c by pairingmember 308 a. Vertical supports 304 b and 304 c are also coupled tohorizontal support 306 a by pairingmember 308 a. In the embodiment illustrated inFIG. 3 ,pairing member 308 a is a T-type pairing member that facilitates coupling two supports (i.e.,vertical support 304 b andvertical support 304 c) along a commonlongitudinal axis 310 of the supports (304 b and 304 c) and that facilitates coupling a third support (i.e.,horizontal support 306 a) at a right angle to the commonlongitudinal axis 310 of the first two supports (i.e.,vertical support 304 b andvertical support 304 c). - In one embodiment,
vertical supports horizontal support 306 a may be dry fit within pairingmember 308 a such thatvertical supports horizontal support 306 a are removably coupled to pairingmember 308 a. In other embodiments,vertical supports horizontal support 306 a may be glued, welded, or otherwise permanently affixed to pairingmember 308 a. - In certain embodiments, pairing
member 308 d is a minor image of pairingmember 308 a. That is, pairingmember 308 d is also a T-type pairing member that facilitates coupling two supports (i.e.,vertical support 304 d andvertical support 304 e) along a commonlongitudinal axis 312 of the supports (304 d and 304 e) and that facilitates coupling a third support (i.e.,horizontal support 306 a) at a right angle to the commonlongitudinal axis 312 of the first two supports (i.e.,vertical support 304 d andvertical support 304 e). - Pairing
members vertical support 304 c andhorizontal support 306 b and/orvertical support 304 d andhorizontal support 306 b) at right angles to one another. In certain embodiments,vertical support 304 c andhorizontal support 306 b and/orvertical support 304 d andhorizontal support 306 b may be dry fit within therespective pairing members vertical support 304 c andhorizontal support 306 b and/orvertical support 304 d andhorizontal support 306 b are removably coupled. In other embodiments,vertical support 304 c andhorizontal support 306 b and/orvertical support 304 d andhorizontal support 306 b may be glued, welded, or otherwise permanently affixed torespective pairing members - In certain embodiments,
vertical support 304 b is coupled to a re-breakable joint 314 at an end ofvertical support 304 b opposite the end ofvertical support 304 b that is coupled to thepairing member 308 a. In one embodiment,vertical support 308 a is coupled to the re-breakable joint 314 at an end of the re-breakable joint 314 opposite the end of the re-breakable joint 314 thatvertical support 308 a is coupled to the re-breakable joint 314. The re-breakable joint 314 is further discussed below with reference toFIGS. 4 and 5 . - In an exemplary embodiment, a diameter of
vertical supports reducer 316 a may be positioned betweenvertical support 304 a and the components that that make up the re-breakable joint 314 to facilitate coupling betweenvertical support 304 a and the components that that make up the re-breakable joint 314. Similarly, areducer 316 b may be positioned betweenvertical support 304 b and the components that that make up the re-breakable joint 314 to facilitate coupling betweenvertical support 304 b and the components that that make up the re-breakable joint 314. - In certain embodiments,
vertical support 304 a, by virtue of its position within thetraining dummy 206, simulates the tibia bone 108 (and fibula bone) of a human. Similarly,vertical support 304 b, by virtue of its position within thetraining dummy 206, simulates thefemur bone 106 of a human. - The embodiment illustrated in
FIG. 3 depicts thetraining apparatus 200 as having a re-breakable joint 314 in theright leg 230 of thetraining dummy 206. In other embodiments, thetraining apparatus 200 may include a re-breakable joint 314 in theleft leg 232 of thetraining dummy 206. In another embodiment, bothlegs training dummy 206 may includere-breakable joints 314. In yet another embodiment, thetraining dummy 206 may include additionalre-breakable joints 314 such as shoulder, elbow, or wrist joints. -
FIG. 4 depicts an enlarged cutaway view of one embodiment of the re-breakable joint 314.FIG. 5 depicts an exploded view of one embodiment of the re-breakable joint 314. In certain embodiments, the re-breakable joint 314 includes afirst member 402, asecond member 404, and a biasingmember 408. - The
first member 402, in one embodiment, includes aconcave engagement end 410 positioned opposite anextension end 412. Theconcave engagement end 410 includes a recess 414 (FIG. 5 ) having a substantiallyconcave surface 416 defining an engagement receiving space 418 (FIG. 5 ). In certain embodiments, theengagement receiving space 418 is at least partially spherical. - The
second member 404, in an exemplary embodiment, includes aconvex engagement end 420 disposed opposite anextension end 422. Theconvex engagement end 420 having a substantiallyconvex surface 424. The substantiallyconvex surface 424 is at least partially spherical and theconvex engagement end 420 of thesecond member 404 is matingly receivable within theengagement receiving space 418 of thefirst member 402. That is, in certain embodiments, theconvex surface 424 of the second member nests with the substantiallyconcave surface 416 defining theengagement receiving space 418 of thefirst member 402. - In the embodiments depicted in
FIGS. 4 and 5 , thefirst member 402 having theengagement receiving space 418 is depicted above thesecond member 404 having theconvex surface 424. One of skill in the art will recognize that in certain embodiments, the position of thefirst member 402 and thesecond member 404 may be reversed. That is, in one embodiment, the top member may include a convex surface and the bottom member may include a concave engagement receiving space. - A biasing
member 408 is engaged with thefirst member 402 and biases theengagement receiving space 418 of thefirst member 402 in a mating engagement with theconvex engagement end 420 of thesecond member 404. In the embodiment illustrated inFIGS. 4 and 5 , the biasingmember 408 is depicted as a spring. In other embodiments, the biasing member may be an elastomeric material that is able to stretch and then regain its original shape. - In certain embodiments, the biasing
member 408 is coupled to a first coupling member 426 (a first eyebolt) that extends through anorifice 428 in thesecond member 404 and through anorifice 430 in thefirst member 402. Awasher 432 and anut 434 are threadedly engaged withthreads 436 on thefirst coupling member 426 to engage thefirst coupling member 426 with thefirst member 402. Thewasher 432 andnut 434 keeps thefirst coupling member 426 from being removed fromorifices second members - A second coupling member 438 (a second eyebolt) is coupled to the
base member 202 with awasher 442 and anut 444 threadedly engaged with threads 446 on thesecond eyebolt 438. Thesecond coupling member 438 is also coupled to the biasingmember 408. Because thesecond coupling member 438 is coupled to thebase member 202 and the biasing member is coupled to both thefirst coupling member 426 and thesecond coupling member 436, the biasingmember 408 pulls thefirst coupling member 426 in the direction indicated byarrow 440. Thefirst eyebolt 426 in turn pulls thefirst member 402 downward in the direction indicated byarrow 440.Vertical support 304 a (a supporting member) supports thesecond member 404 and keeps it from being pulled downward. Thus, theconvex surface 424 of thesecond member 404 is forced into theconcave surface 416 of theengagement receiving space 418 in thefirst member 402 by pressure from the biasingmember 408. The biasing force applied by the biasingmember 408 may be adjusted by threadedly adjusting eithernut 434 on thefirst coupling member 426,nut 444 on thesecond coupling member 436, or both. - In certain embodiments, one or both of the
orifice 428 in thesecond member 404 and theorifice 430 in thefirst member 402 may be substantially larger than the diameter of thefirst coupling member 426 to allow thesecond member 404 and or thefirst member 402 to move laterally with respect to one another as indicated by arrows 446. That is, in one embodiment, at least one of thefirst orifice 430 in thefirst member 402 and thesecond orifice 428 in thesecond member 404 has an axial area sufficient to allow lateral displacement of thefirst member 402 with respect to thesecond member 404 without interfering with thefirst coupling member 426. - The
first member 402 and/or thesecond member 404 are laterally movable in response to pressure applied tovertical support 304 a,vertical support 304 b, and/or the re-breakable joint 314 itself. Such pressure may come from a kick or punch tovertical support 304 a,vertical support 304 b, and/or the re-breakable joint 314. Accordingly, in certain embodiments, theconvex engagement end 420 of the second member is laterally displaceable from within theengagement receiving space 418 in thefirst member 402 in response to a displacing pressure applied to one of thefirst member 402 and thesecond member 404. Such displacing pressure may be directly applied to the first orsecond member vertical supports - Once the pressure is removed, the biasing
member 408 pulls thefirst member 402 back into alignment with thesecond member 404 such that theconvex surface 424 of thesecond member 404 is positioned within theconcave surface 416 of theengagement receiving space 418 in thefirst member 402. - The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (11)
1. A training apparatus comprising:
a first member comprising a concave engagement end disposed opposite an extension end, the concave engagement end comprising a recess having a substantially concave surface defining an engagement receiving space, wherein the engagement receiving space is at least partially spherical;
a second member comprising a convex engagement end disposed opposite an extension end, the convex engagement end having a substantially convex surface, wherein the substantially convex surface is at least partially spherical, the convex engagement end of the second member matingly receivable within the engagement receiving space of the first member;
a biasing member engaged with the first member, the biasing member biasing the engagement receiving space of the first member in a mating engagement within the convex engagement end of the second member; and
wherein the convex engagement end of the second member is laterally displaceable from within the engagement receiving space in the first member in response to a displacing pressure applied to one of the first member and the second member.
2. The apparatus of claim 1 , wherein the biasing member is coupled to a coupling member at a first end of the biasing member, the coupling member extending through a first orifice disposed through the first member and a second orifice disposed through the second member, wherein the coupling member engages the first member to bias the convex engagement end of the second member within the engagement receiving space of the first member.
3. The apparatus of claim 2 , wherein at least one of the first orifice and the second orifice has an axial area sufficient to allow lateral displacement of the first member with respect to the second member without interfering with the coupling member.
4. The apparatus of claim 2 , further comprising a supporting member and a base member, the supporting member positioned between the base member and the second member with the base member supporting the supporting member, wherein the biasing member biases the first member in a direction of the supporting member.
5. The apparatus of claim 4 , wherein the biasing member is coupled to a base member that is engaged with a floor surface.
6. The apparatus of claim 4 , wherein the base member is weighted.
7. The apparatus of claim 1 , wherein a biasing force of the biasing member is adjustable and wherein adjustment of the biasing force adjusts the displacing pressure required to laterally displace the convex engagement end of the second member is from within the engagement receiving space.
8. The apparatus of claim 1 , further comprising a protective membrane covering the first member and the second member, the protective membrane protecting an appendage of a user when the displacing pressure is applied to one of the first member and the second member.
9. The apparatus of claim 8 , wherein the protective membrane comprises a material having a durometer sufficient to absorb a blow from a user without injuring the user.
10. The apparatus of claim 9 , wherein the protective membrane comprises a shape substantially similar to at least a portion of a human.
11. The apparatus of claim 1 , further comprising a frame structure and a protective membrane, the frame structure coupled to the first member, wherein the frame structure comprises at least one extending member extending to a height of approximately an average adult's chest, the frame structure supporting the protective membrane, the protective membrane comprising a shape substantially similar to an adult's chest, torso, and legs.
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Cited By (1)
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CH715817A1 (en) * | 2019-02-05 | 2020-08-14 | Straintec Ag | Joint and play device with at least one such joint. |
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CH715817A1 (en) * | 2019-02-05 | 2020-08-14 | Straintec Ag | Joint and play device with at least one such joint. |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |