WO2007119577A1 - バッテリフォークリフト用ドライブユニット - Google Patents
バッテリフォークリフト用ドライブユニット Download PDFInfo
- Publication number
- WO2007119577A1 WO2007119577A1 PCT/JP2007/056762 JP2007056762W WO2007119577A1 WO 2007119577 A1 WO2007119577 A1 WO 2007119577A1 JP 2007056762 W JP2007056762 W JP 2007056762W WO 2007119577 A1 WO2007119577 A1 WO 2007119577A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disk
- pressure plate
- disc
- lever
- gear
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
- B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/36—Brakes with a plurality of rotating discs all lying side by side
- F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/005—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles by locking of wheel or transmission rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07513—Details concerning the chassis
- B66F9/07531—Battery compartments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
- F16D65/186—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes with full-face force-applying member, e.g. annular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0046—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K7/00—Disposition of motor in, or adjacent to, traction wheel
- B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/40—Electrical machine applications
- B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/10—Road Vehicles
- B60Y2200/15—Fork lift trucks, Industrial trucks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2123/00—Multiple operation forces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/36—Helical cams, Ball-rotating ramps
- F16D2125/38—Helical cams, Ball-rotating ramps with plural cam or ball-ramp mechanisms arranged concentrically with the brake rotor axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/64—Levers
Definitions
- the present invention relates to a drive unit for a battery forklift, and more specifically, a drive unit for a battery forklift in which a brake is disposed inside the drive unit so as to make the battery forklift compact in the battery forklift.
- left and right drive cases 8 2 fixed to a vehicle body 8 1 are provided, respectively, and a drive motor is provided in the left and right drive cases 8 2.
- 8 3 are fixed so that the left and right motors face each other.
- the first gear 85 is fitted to the motor shaft 8 4 of the left and right traveling motors 8 3
- the second gear 86 is provided to be engaged with the first gear 85.
- the second gear 8 6 is further connected to the carrier 8 7 through a plurality of gears, and the power generated by the traveling motor 83 is used for the first gear 8 5, the second gear 8 6 and other gears.
- the hub 8 8 is fixed to the carrier 8 7, and the wheel 90 having the tire 8 9 attached to the hub 8 8 is attached.
- the left and right traveling motors 8 3 are equipped with dry single plate brakes 9 1 on their opposite sides, respectively. Therefore, braking was performed.
- the left and right traveling motors 83 were controlled to operate synchronously by the controller.
- the present invention arranges a brake inside the drive unit in the battery fork lift so that the compact in the vicinity of the drive unit in the battery fork lift is achieved.
- the challenge is to make it easier.
- the first invention is provided with a first gear fitted to the motor shaft of the traveling motor and a second gear meshed with the first gear in the drive case, and the first gear and the second gear.
- a space is formed inside the second gear provided in the drive case ⁇ , where the wet brake
- This wet brake part has an inner disc with the entire inner circumference attached to the second gear, and an entire outer circumference attached to the drive case, facing the inner disc.
- a pressure plate that presses the inner and outer disks facing each other, and a battery forklift drive unit.
- the movement of the outer disk in the radial direction is limited, and the pressing force from the pressure plate and the outer disk and the inner disk are pressed by the pressure plate.
- a mounting block that receives all the friction braking torque generated closely is fixed to the drive case.
- a screw is provided inside the cylinder mouthpiece fixed to the drive case side, and a tip of this screw is applied to the pressure plate of the wet brake part.
- the structure is such that the contact pad is fixed and the push pad is provided on the opposite side of the piston from the piston, and when the service brake is activated, fluid is injected through the fluid passage.
- the cutting allowance for adjusting the cutting allowance between the inner disc and the outer disc of the wet brake portion by restricting the swing of the lever that pushes in the push rod of the push-out mechanism portion is characterized by comprising.
- the fluid is injected through the fluid passage to push the pressure plate through the rigged piston.
- the outer disk and inner disk are in close contact with each other so that friction braking torque is generated between the outer disk and inner disk.
- the parking brake is activated, the lever is swung through a lever connected to the wire connected to the parking lever.
- the outer disk and inner disk are brought into close contact with each other, and an extrusion mechanism that generates friction braking torque in the outer disk and inner disk is provided, and the lever swing is restricted.
- the wet brake section It is characterized by having a cutting allowance adjusting portion for adjusting the cutting allowance between the disc and the outer disc.
- the wire connected to the parking lever is connected to the wire linked to the operation of the brake pedal via the lever.
- the outer disk and inner disk are brought into close contact with each other, and the outer disk and inner disk are provided with an extruding mechanism that generates friction braking torque. It is characterized by having a cutting allowance adjusting portion for adjusting the cutting allowance between the inner disc and the outer disc of the wet brake portion by restricting the movement.
- a space is formed inside the second gear provided in the drive case, and the wet brake portion is disposed here, so that a large space for disposing a brake in the vicinity of the drive unit as in the conventional case.
- the drive unit and the vicinity of the drive unit can be made compact.
- the brake part can be completely covered with the drive case, and mud and water can be prevented from entering from the outside, so that problems such as brake failure can be greatly reduced.
- FIG. 1 is an explanatory diagram of a first embodiment of a drive unit for a battery forklift according to the present invention.
- FIG. 2 is an explanatory view showing an attached state of the outer disk of the wet brake portion of the first embodiment.
- FIG. 3 is an explanatory view of an extrusion mechanism portion having a protective boot of the wet brake portion.
- FIG. 4 is an explanatory diagram of the cutting allowance adjusting portion of the wet brake portion.
- FIG. 5 is an explanatory diagram of another example of the cutting allowance adjusting portion of the wet brake portion.
- FIG. 6 is an explanatory view of another example of the push-out mechanism portion of the wet brake portion.
- FIG. 7 is an explanatory view of another example of the pressure plate and the pushing mechanism part of the wet brake part.
- FIG. 8 is an explanatory view showing a second embodiment of the drive unit for a battery forklift according to the present invention.
- -Fig. 9 is a cross-sectional view taken along line K_IX in Fig. 8.
- FIG. 10 is an explanatory view showing a third embodiment of the drive unit for a battery forklift according to the present invention.
- FIG. 11 is a schematic exploded perspective view for explaining the push-out mechanism portion of the wet brake portion according to the third embodiment.
- FIGS. 12 and 12B are explanatory views showing the operating state of the pressure plate and the ring plate by the ball body in the push-out mechanism.
- FIG. 13 is a view in the direction of arrow A in FIG.
- FIG. 14 is an explanatory view showing an embodiment 4 of the drive unit for a battery forklift according to the present invention.
- FIG. 15 is a view in the direction of arrow B in FIG.
- FIG. 16 is an explanatory view showing a fifth embodiment of the drive fork for battery forklift according to the present invention.
- FIG. 17 is an explanatory view showing a sixth embodiment of a drive unit for a battery forklift according to the present invention.
- FIG. 18 is a view in the direction of arrow C in FIG. 16 or FIG.
- FIG. 19 is an explanatory view of a conventional battery forklift drive unit. BEST MODE FOR CARRYING OUT THE INVENTION [0016]
- a first embodiment of a battery fork lift drive unit according to the present invention will be described.
- the pair is arranged so as to be opposed to the left and right sides of the vehicle body. Therefore, in the description, only one side of the left and right will be described, and the other side of the same structure Omits the explanation. ,
- a drive case 2 is fixed to a vehicle body 1.
- the drive case 2 is composed of a substantially truncated cone-shaped case 3 and a substantially plate-shaped force bar 4 fixed to the case 3.
- a space is formed to make it hollow.
- the traveling motor 5 is fixed to the inner side of the cover 3 in the vehicle body, and the motor shaft 6 of the traveling motor 5 is disposed so as to protrude toward the inside of the drive case.
- the first gear 11 is spline-fitted to the motor shaft 6 of the traveling motor 5.
- the fast gear 1 1 is supported by the case 3 and the cover 4 of the drive case 2 through a bearing 12 2 so as to rotate freely.
- a second gear 13 that engages with the first gear 11 is provided below the first gear 11.
- the second gear 13 has a shape with a space inside.
- a sun gear 14 is fixed to the outside of the vehicle body at the center of the second gear 1 3, and a planetary gear 1 6 that revolves around the sun gear 1 4 via a ring gear 1 5 is provided.
- a hub 2 2 is spline-fitted to the outer periphery of the carrier 21, and the hub 2 2 is rotatably supported by the case 3 of the drive case 2 via a bearing 23. Then, a wheel with tire 2 4 attached to this grouper 2 2 Attach tool 2 5 with bolt 2 6 and nut 2 7.
- the drive case 2 has a plurality of gears such as a first gear 1 1, a second gear 1 3, a sun gear 1 4, and a planetary gear 1 6. Lubricating oil is used to lubricate these gears. Is put. For this reason, the dry case 2 is provided with an oil seal at an appropriate position.
- the second gear 13 provided in the drive case 2 is pierced on the inside, and a space is formed on the inside.
- a wet brake part 31 is disposed in a space formed inside the second gear 13, and the wet brake part 31 is basically attached to the second gear 13 so that the entire inner periphery is attached to the second gear 13.
- An inner disk 3 2 that can be rotated together with the inner disk 3 2, an outer disk 3 3 that is fixed with the entire outer periphery mounted on the drive case 2 side so as to face the inner disk 3 2, and an inner disk 3 2 that faces each other Outer disc 3 3
- a pressure plate 34 which is pressed and brought into contact therewith.
- the inner brake disk 3 2 is a ring-shaped thin plate, and a plurality of the inner brake disks 3 1 are prepared, and the disk mounting section 3 5 formed on the inner peripheral side of the second gear 1 3 is used. Install each one. At this time, the entire inner circumference of the inner disc 3 2 is attached to the disc attachment portion 35, and the inner disc 3 2 can rotate around the center of the carrier 21 together with the second gear 13.
- the outer disk 3 3 is also a ring-shaped thin plate.
- a plurality of the outer disks 3 3 are prepared and arranged so as to face the inner disk 3 2 between the plurality of inner disks 3 2.
- Autade 1 disk 3 3 is the entire outer periphery is attached to the mounting proc 3 6 serving as a drive case 2 side, by attaching the mounting proc 3 6, outer disk 3 3 is in a stationary state .
- the outer disk 3 3 is attached to the mounting block 3 6 by forming, for example, six claw portions 3 3 a that protrude outward on the outer periphery of the outer disk 3 3 at regular intervals.
- an inner flange portion 3 6 b is formed in the mounting block 36 on the dry case 2 side, and a pre-shapper is formed in the inner flange portion 3 6 b.
- the entire surface of the inner disk 3 2, which is opposite to the side pressed by the rate 3 4, is in contact. If the inner disk 3 2 and the outer disk 3 3 are alternately arranged and the outer disk 3 3 is arranged at the end, the entire surface of the outer disk 3 3 is used instead of the inner disk 3 2 described above. Comes into contact with the inner flange part 3 6 b of the mounting block 3 6.
- the friction material is fixed only on the surface of the inner disk 32.
- the second gear 13 to which the inner disk 3 2 is attached is rotatably supported by a mounting block 36 on the drive case 2 side via a bearing 37.
- the pre-strip plate 3 4 that presses the inner disk 3 2 and the outer disk 3 3 is substantially disk-shaped, and the center of the pre-strip plate 3 4 is the same as the center of the carrier 21. It is slidably attached to the plate support 3 8.
- On the outer periphery of the pressure plate 34 there are provided protrusions 39 protruding to the outer periphery at a plurality of locations over the entire periphery, and a return spring 40 is provided on the protrusion 39. This The pressure plate 3 4 is pressed against the force par 4 side of the drive case 2 by a return spring 40.
- a cylinder opening 4 3 having a piston 4 2 'inside is fixed to the cover 4 of the drive case 2 with a bolt or the like (not shown).
- the mouth 44 is integrally fixed to 2, and the tip of the rod 44 passes through the plate support portion 38 of the cover 4 and comes into contact with the pressure plate 34.
- the piston 4 2 is integrally provided with a push rod 45 on the opposite side of the rod 44.
- the piston 4 2., the rod 4 4, and the push rod 4 5 are centered at the same position as the center of the carrier 21 and the tip of the rod 4 4 is the pressure plate 3 4 It is made to contact
- a fluid passage 46 for injecting and discharging fluid such as oil is formed in the cylinder block 43, and when oil or the like is injected here, the piston 42 moves and the mouth is closed. 4 4 pushes the pressure plate 3 4 and pushes the pressure plate 3 4 to the inner disc 3 2 and the outer disc 3 3 side.
- the injection / discharge of oil or the like into the fluid passage 46 is controlled based on the operation of a brake pedal (not shown) for operating the service brake.
- an air hole 47 for releasing air in the space on the side of the rod 44 is formed in the cover 4.
- the escape air hole 47 may be formed in the cylinder block 43.
- the cylinder mouthpiece 43 has a swing lever 49 via a pair of brackets 48, and the upper end of the lever 49 has a push mouth provided on the piston 42.
- the push opening 45 is pushed into contact with the door 45 and the lower end is connected to the wire 50 connected to the parking lever.
- the push-out mechanism 41 includes a piston 4 2 inside the cylinder block 4 3 fixed to the drive case 2, and a mouth 4 4 is fixed to the tip of the screw 4 2, and the piston 4 2
- push rod 4 5 is provided on the opposite side of rod 4 4 so that both the service brake and the parking brake are activated via the piston 42 and the mouth pad 44. Then you can press the pressure plate 3 4.
- the push-out mechanism section 41 can have a very simple and simple structure, and can be provided at a low cost while suppressing the occurrence of problems such as failures.
- a cutting allowance adjusting portion 7 1 for adjusting a cutting allowance between the inner disc 3 2 and the outer disc 3 3 of the wet brake portion 3 1 is provided.
- This cutting allowance means that in the wet brake part 31, the inner disk 3 2 and the outer disk 3 3 are not in close contact, that is, there is a gap between the inner disk 3 2 and the outer disk 3 3.
- the inner disc 3 2 and the outer disc 3 3 are in close contact with each other when the inner disc 3 2 and the outer disc 3 3 are not braked.
- the outer disk 3 3 are the total axial movements of the inner disk 3 2 and the outer disk 3 3 until the brake is applied, which is a state where friction braking torque is generated.
- a cutting allowance adjusting unit 71 for easily adjusting the cutting allowance is provided.
- the cutting allowance adjusting portion 7 1 is provided with an adjusting bolt 7 2 that allows the protrusion amount to be changed at the lower portion of the cylinder block 4 3 of the pushing mechanism portion 41.
- a lock nut 7 3 is provided for fixing 7 2 with a predetermined protrusion amount, and a small protrusion-like abutting portion 7 4 with which the adjusting bolt 7 2 abuts is formed on the lever 4 9. Then, the adjustment bolt 7 2 in the cutting allowance adjusting portion 7 1 abuts against the abutting portion 7 4 formed on the lever 4 9 to restrict the swing of the lever 4 9 in the left direction in FIG.
- Extrusion mechanism part 4 1.Piston 4 2 and push mouth pad 4 5 and mouth pad 4 4 through wet brake part 3 1 pressure plate 3 4
- This pressure plate 3 4 is more than a predetermined distance between the inner disk 3 2 and the outer disk 3
- the pressure plate 3 4 is pressed so as not to be separated from 3. Then, by adjusting the protruding amount of the adjusting bolt 7 2 in the cutting allowance adjusting portion 71, the cutting allowance between the one disc 3 2 and the water disc 3 3 is properly adjusted. At this time, it is necessary to provide a clearance ⁇ necessary for adjustment between the cover 4 and the pressure plate 3 4.
- the cutting allowance between the inner disc 3 2 and the outer disc 3 3 of the wet brake 3 1 is adjusted.
- the cutting allowance adjusting section 71 By providing the cutting allowance adjusting section 71, the cutting allowance at the inner disc 3 2 and the outer disk 33 of the wet brake section 31 can always be set to an appropriate value. It is possible to eliminate problems with the operation of the parking lever and problems with the operation of the parking lever. As a result, in order to adjust the cutting allowance in the wet brake section 3 1 to an appropriate value, the overall thickness of the various inner discs 3 2 and outer discs 3 3 that differ slightly from the conventional thickness is standard. It is possible to eliminate troublesome work such as adjusting the cutting allowance by combining the values.
- the assembly of the wet brake unit 3 1 ⁇ “one disc 3 2 outer disc 1 3 3 pressure plate 3 4 Standard conformity (dimensional accuracy in the thickness direction) is increased, and the extruding mechanism 4 1 screw 4 2 Nya rod 4 4 and push rod 4 5 and lever 4 9 standard conformity (dimensions)
- the cutting allowance adjusting section 7 1 is provided, the cutting allowance can be adjusted by the cutting allowance adjusting section 7 1 after assembly, making the work at the time of assembly easier.
- repeated use in the wet brake section 3 1 will cause the inner disk 3 2 One disc 3 3 etc.
- the position of the adjusting bolt 7 2 and the abutting portion 7 4 in the cutting allowance adjusting portion 71 is the dimension from the swing center position of the lever 4 9 to the position where the lever 4 9 contacts the push rod 45.
- ⁇ it is preferable that the dimension; 3 from the pivot center position of the lever 4 9 to the positions of the adjusting bolt 72 and the butting portion 74 is increased.
- the cutting allowance adjusting portion 7 1 is not limited to this.
- a small protrusion-like abutting part 7 4 is formed at the bottom of 3 and an adjustment bolt 7 2 that allows the amount of protrusion that abuts against the abutting part 7 4 formed on this cylinder block 4 3 to be changed to lever 4 9 is also provided with a hook nut 7 3 for fixing the adjusting bolt 72 with a predetermined protruding amount, and the swinging of the lever 4 9 in the left direction in FIG. 4 is restricted by the adjusting bolt 72.
- Adjust the cutting allowance in the wet brake section 3 1 to an appropriate value. May be.
- a small protrusion-like abutting portion 7 4 is formed at the position above the lever 49 and at the same height as the push rod 45 of the pushing mechanism portion 41.
- adjustment bolts 7 2 and lock nuts 7 3 may be provided on the bracket on the vehicle body 1 side so as to change the amount of protrusion that abuts against the abutting portion 74 formed on the upper part of the leper 49.
- the push-out mechanism sections 4 and 1 have a structure in which the piston 42, the mouth pad 4 4 and the push mouth pad 45 are integrated.
- this may be a two-part structure in which the push rod 45 is separated from the piston 42 and the rod 44,
- the piston 4 2, the rod 4 4, and the push rod 4 5 may be divided into three parts.
- the push mechanism 4 1 is not composed of the piston 4 2, the rod 4 4 and the push rod 4 5, but as shown in FIG. 7, the piston 4 2 and the push port 4 5 and the pressure plate 3 4
- a rod portion 5 9 corresponding to the rod 44 may be integrally formed so that the rod portion 59 in the pusher plate 34 directly contacts the piston 4 2 in the push-out mechanism portion 41.
- the second gear 13 provided in the drive case 2 has a shape in which the inner side is pierced to form a space on the inner side, and the second gear 1 3
- the wet brake part 31 By placing the wet brake part 31 in the space formed inside the vehicle, a large space for placing the brake as in the conventional case is unnecessary, and the drive unit and its vicinity can be made compact. If it is strong, it can be reduced in size and weight as a battery forklift.
- the second gear 1 3 in the drive case 2 By disposing the wet brake portion 31 inside, the size of the vehicle body 1 in the width direction can be reduced.
- the wet brake part 3 1 is completely covered by the drive case 2, and this wet brake part 3 1 1 can eliminate the intrusion of muddy water from the outside, and the problem of brake failure can be greatly reduced.
- the oil for lubricating the wet brake part 31 the oil dedicated to the wet brake part 31 is used by combining the various gears in the drive case 2 with the lubricating oil for lubrication. It is unnecessary and can be manufactured very cheaply as a wet brake.
- the disc mounting part 3 5 of the second gear 1 3 and the mounting block 3 6 to be fixed to the cover 4 of the drip case 2 3 6
- the inner disk 3 2 and the outer disk 3 3 can be firmly and securely attached. The problem can be eliminated.
- the inner flange portion 3 6 b of this mounting block 3 6 is in contact with the entire surface of the inner disk 3 2 opposite to the side pressed by the pressure plate 3 4, and this inner flange portion 3 6
- the pressing force received from the pressure plate 3 4 by the mounting block 3 6, the outer disk 3 3 and the inner disk 3 2 The friction braking torque generated by the pressing of the pusher plate 3 4 can be received completely, and it can be received reliably even if a strong pressing force is applied from the pressure plate 3 4.
- the pressing force from the plate 3 4 can be increased, and the strong braking force can be exhibited stably.
- the inner disk 3 2 with the friction material fixed on the surface is attached to the second gear 1 3 side, and the inner disk 3 2 is rotated together with the second gear 13 so that the surface of the inner disk 3 2
- the replacement time of the inner disk 3 2 can be extended and the inner disk 3 2 can be extended over a long period of time. It can be used, and the maintenance cost of the wet brake part 31 can be reduced.
- the lubricating oil contained in the drive case 2 is only filled up to about half the height of the inner disc 3 2 or the outer disc 3 3 in the wet brake section 3 1, so the inner disc 3 2 Or, the desired amount of lubricating oil did not reach the upper end of the outer disk 33.
- the lubricating oil to the upper end of the inner disk 3 2 is insufficient.
- the friction material at the upper end of the inner disk 3 2 immediately decreases, and the friction material of the inner disk 3 2 is deviated unevenly (the upper side decreases).
- the inner disk 3 2 must be replaced early.
- the entire inner disk 3 2 is immersed in the lubricating oil every time it rotates. Lubricating oil will spread. As a result, it is possible to suppress the reduction of the friction material adhered to the surface of the inner disk 32.
- the pressure plate 3 4 is slidably attached to the plate support portion 3 8 of the cover 4 of the drive case 2 to support the plate. It is pressed against the cover 4 side of the drive case 2 by the return spring 5 1 placed around the part 3 8.
- the push-out mechanism part 41 is provided with a slidable ring-shaped piston 52 around the plate-supporting part 38 in the cover 4, and the tip of the ring-shaped piston 52 is It is in contact with the pressure plate 3 4. So Then, when oil or the like is injected into the fluid passage 5 3 formed in the cover 4, the ring-shaped viston 5 2 moves to push the pressure plate 3 4, and the pressure plate 3 4 is moved to the inner disk 3 2 and Push out to the outer disk 3 3 side.
- the injection and discharge of oil and the like into the fluid passage 53 is controlled based on the operation of a brake pedal (not shown).
- the cover 4 is provided with swing levers 5 and 5 via brackets 5 4, and the upper end of the lever 5 5 is branched into two, and the push openings 5 6 are respectively connected to the branched portions. I have.
- the pair of push rods 56 penetrates the cover 4 and abuts against the pressure plate 34.
- the lower end of lever 5 5 is connected to wire 50 connected to the parking lever.
- a cutting allowance adjusting portion 7 1 for adjusting a cutting allowance between the inner disc 3 2 and the outer disc 3 3 of the wet brake portion 3 1 is provided, and this cut allowance adjusting portion 7 1 is used in the first implementation described above.
- the configuration is almost the same as that of the configuration.
- the cover 4 of the drive case 2 is provided with the adjusting bolt 7 2 and the mouth nut 7 3, and the lever 5 5 is formed with a small protrusion-like butting portion 7 4.
- Fig. 8 Left-hand swing of lever 5 5 is regulated by adjusting bolt 7 2, and the cutting allowance in wet brake section 31 is adjusted to an appropriate value.
- the ring-shaped piston 5 2 that operates when the service brake is operated by depressing the brake pedal is used.
- the pressure plate 3 4 is slidably attached to the plate support portion 3 8 of the cover 4 of the drive case 2 to support the plate.
- Part 3 8 is pressed against the cover 4 side of the drive case 2 by the return spring 5 1
- the push-out mechanism 41 includes a ring-shaped piston 52 that can be slid around the plate support 38 in the cover 4 in the same manner as in the second embodiment described above.
- the tip of the ring screw 5 2 is in contact with the pressure plate 3 4.
- the ring-shaped piston 5 2 moves and pushes the pressure plate 3 4 to move the pressure plate 3 4 to the inner disk 3 2 and Push out to the disk 3 3 side.
- the injection / discharge of oil or the like into the fluid passage 53 is controlled based on the operation of a brake pedal (not shown).
- a ring-shaped ring plate 6 1 is attached to the cover 4 via a knock pin 6 2 so as to face the pressure plate 3 4, and the ring plate 6 1 and the pressure plate 3 4 A plurality of ball bodies 63 are arranged around the entire circumference.
- a semi-ellipsoidal inclined groove 6 4 is formed at the place where the ball body 6 3 is arranged in the ring plate 6 1 and the pressure plate 3 4 respectively.
- the ball body 63 is accommodated in the opposing inclined groove 64.
- a shaft body 65 is provided at the lower end of the cover 4, and a swing lever 66 is fixed to one end of the shaft body 65, and a wire 50 connected to the parking lever is connected to the upper end side of the lever 66.
- Link In addition, a swing arm 6 7 is fixed to the other side of the shaft body 6 5, and this arm 6 7 It engages with a pin 69 fixed to the lower end of the pressure plate 34 via a U groove 68 at the upper end.
- the cut allowance adjusting portion 7 1 includes the above-described embodiments and The configuration is almost the same as the example, and as shown in Fig. 13, the adjustment bolt 7 2 and lock nut 7 3 are provided on the bracket 7 5 on the vehicle body 1 side, and the side surface of the lever 6 6 has a small protrusion. Abutment part 7 4 is formed, and the swinging in the left direction of Leper 6 6 in Fig. 1 3 is regulated by adjusting bolt 7 2, and the cutting allowance in wet brake part 3 1 is adjusted to an appropriate value. .
- the lever 66 returns to its original position, and the pressure plate 3 4 also returns to its original position via the arm 67. Accordingly, the ball body 6 3 disposed between the pressure plate 3 4 and the ring plate 6 1 is also accommodated in the inclined grooves 6 4 facing each other between the pressure plate 3 4 and the ring plate 6 1, The gap between the pressure plate 3 4 and the ring plate 6 1 narrows and returns to its original position. Then, when the gap between the pressure plate 3 4 and the ring plate 6 1 is restored, the pressure of the inner disk 3 2 and the outer disk 3 3 by the pressure plate 3 4 is released. Become.
- the fourth embodiment will be described.
- the ring plate 6 1 and the cover 4 are arranged.
- a semi-ellipsoidal inclined groove 6 4 is formed on each of them, and a ball body 63 is disposed in the inclined groove 4 facing between the ring plate 6 1 and the cover 4.
- the arm 6 7 fixed to the shaft body 65 is not engaged with the pressure plate 34 but is engaged with the lower end of the rig plate 61.
- the ring plate 61 is slightly rotated by the swinging of the lever 66, and the ball body 63 is displaced from the opposed inclined groove 64 by the slight rotation of the ring plate 61.
- the ring plate 6 1 moves so as to widen the gap with respect to the cover 4 and moves the pretension plate 3 4.
- the fourth embodiment also includes a cutting allowance adjusting portion 7 1 for adjusting a cutting allowance between the inner disk 3 2 and the outer disc 3 3 of the wet brake portion 3 1.
- a cutting allowance adjusting portion 7 1 for adjusting a cutting allowance between the inner disk 3 2 and the outer disc 3 3 of the wet brake portion 3 1.
- 1 is the embodiment described above
- the bracket 7 on the side of the vehicle body 1 is provided with an adjustment port 7 2 and a hook nut 7 3, and the side surface of the lever 6 6 has a small projection as shown in FIG. forming a contact portion 7 4, so as to regulate the lever 6 6 ⁇ adjusts bolts 7 2 to adjust the switching Les removal on wet brake unit 3 '1 to a proper value.
- the fifth and sixth embodiments are basically the same as the third and fourth embodiments described above, but as shown in FIGS. 16 and 17 respectively, A part of the extrusion mechanism 4 1 is different.
- the cover 4 is formed with a fluid passage 53 for injecting and discharging oil or the like based on the operation of the brake pedal.
- the fluid passage 53 is eliminated. Then, instead of eliminating this fluid passage 53, connect the wire 70 linked to the operation of the brake pedal to the lever 66 so that the lever 66 swings based on the operation of the brake pedal. I have to. ⁇
- the fifth and sixth embodiments also include a cutting allowance adjusting portion 71 that adjusts the cutting allowance between the inner disc 3 2 and the outer disc 33 of the wet brake portion 31.
- the allowance adjusting portion 7 1 has substantially the same configuration as the above-described embodiments and examples. As shown in FIG. 18, the adjustment port 7 2 and the lock nut 7 3 are provided on the bracket 7 5 on the vehicle body 1 side. At the same time, a small protruding abutment 7 4 is formed on the side surface of the lever 6 6 so that the swing of the lever 6 6 is restricted by the adjusting bolt 7 2, and the cutting allowance in the wet brake 3 1 is set appropriately. Adjust to the value.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/294,417 US7980364B2 (en) | 2006-03-24 | 2007-03-22 | Battery forklift drive unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006083631A JP2006298361A (ja) | 2005-03-25 | 2006-03-24 | バッテリフォークリフト用ドライブユニット |
JP2006-083631 | 2006-03-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007119577A1 true WO2007119577A1 (ja) | 2007-10-25 |
Family
ID=38609349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/056762 WO2007119577A1 (ja) | 2006-03-24 | 2007-03-22 | バッテリフォークリフト用ドライブユニット |
Country Status (5)
Country | Link |
---|---|
US (1) | US7980364B2 (ja) |
KR (1) | KR20080111496A (ja) |
CN (1) | CN101427045A (ja) |
RU (1) | RU2425265C2 (ja) |
WO (1) | WO2007119577A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110061985A1 (en) * | 2009-09-16 | 2011-03-17 | Kenichiro Nakamura | Multiple disc clutch and assembling method therefor |
USD883864S1 (en) | 2018-05-10 | 2020-05-12 | Allison Transmission, Inc. | Axle assembly |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101302514B1 (ko) * | 2005-12-27 | 2013-09-02 | 두산산업차량 주식회사 | 지게차의 전륜 브레이크장치 설치구조 |
DE102010001750A1 (de) * | 2010-02-10 | 2011-08-11 | ZF Friedrichshafen AG, 88046 | Anordnung zum Antrieb eines Fahrzeugrades mit einem Antriebsmotor |
JP5559568B2 (ja) * | 2010-02-25 | 2014-07-23 | ニチユ三菱フォークリフト株式会社 | 車両用ブレーキ内蔵トランスミッション |
KR101313718B1 (ko) * | 2011-01-11 | 2013-10-01 | 주식회사 항저우 항차 트렌스액슬 | 지게차 및 건설장비 차량용 브레이크 장치 |
RU2468936C2 (ru) * | 2011-03-10 | 2012-12-10 | Республиканское унитарное предприятие "Минский тракторный завод" | Ведущий управляемый мост транспортного средства |
KR20120138455A (ko) * | 2011-06-15 | 2012-12-26 | 현대모비스 주식회사 | 인휠 구동장치 |
DE102011082671A1 (de) * | 2011-09-14 | 2013-03-14 | Zf Friedrichshafen Ag | Antriebseinheit für ein Flurförderzeug |
JP5795234B2 (ja) * | 2011-10-14 | 2015-10-14 | 住友重機械工業株式会社 | 車輪駆動用の減速装置 |
US8663058B2 (en) | 2012-01-23 | 2014-03-04 | Caterpillar Inc. | Brake assembly having piloted park brake housing |
US8626410B2 (en) | 2012-01-23 | 2014-01-07 | Caterpillar Inc. | Powertrain system having lockable differential |
US9169884B2 (en) | 2012-01-23 | 2015-10-27 | Caterpillar Inc. | Wet brake assembly |
CN104315049B (zh) * | 2014-09-24 | 2017-02-01 | 杭州杭叉桥箱有限公司 | 自动调节制动间隙的湿式多盘制动器 |
CN109318870B (zh) * | 2017-08-01 | 2023-10-24 | 华亭煤业集团有限责任公司 | 一种无轨胶轮车湿式多盘失效安全型工作制动方法及装置 |
DE102018106479A1 (de) | 2018-03-20 | 2019-09-26 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Bremsvorrichtung |
JP6977670B2 (ja) * | 2018-06-07 | 2021-12-08 | 株式会社豊田自動織機 | 湿式駐車ブレーキ装置 |
JP7063195B2 (ja) * | 2018-08-24 | 2022-05-09 | トヨタ自動車株式会社 | 摩擦ブレーキ、車載装置 |
DE102019101818A1 (de) * | 2019-01-25 | 2020-07-30 | Schaeffler Technologies AG & Co. KG | Radnabenantrieb für ein Fahrzeug sowie Achsanordnung für das Fahrzeug mit Radnabenantrieben |
CN112794240B (zh) * | 2021-01-19 | 2023-01-13 | 张琨 | 一种集装箱正面吊用旋转叉具机构 |
RU2760497C1 (ru) * | 2021-05-31 | 2021-11-25 | Владимир Иванович Пожбелко | Многократный цилиндрический шарнир |
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JPS5172871A (ja) * | 1974-11-18 | 1976-06-24 | Girling Ltd | Enbanbureeki |
US5147255A (en) * | 1990-04-03 | 1992-09-15 | Hurth Getriebe Und Zahnraeder G.M.B.H. | Spur gear transmission, in particular for a drive unit of an industrial truck |
JP2003247573A (ja) * | 2002-02-26 | 2003-09-05 | Mitsubishi Heavy Ind Ltd | 車両のブレーキ装置 |
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US3132724A (en) * | 1962-04-13 | 1964-05-12 | Lambert & Brake Corp | Axially movable, rim grip spring applied, fluid released spot brake with additional release means manually actuated |
US3237724A (en) * | 1964-01-31 | 1966-03-01 | Lambert & Brake Corp | Cam-operated, spot brake structure |
US5174419A (en) * | 1990-04-03 | 1992-12-29 | Hurth Getriebe Und Zahnraeder G.M.B.H | Spur gear transmission for a drive unit of an industrial truck with lever mounted hydraulic cylinder |
US5090501A (en) * | 1990-09-11 | 1992-02-25 | Mcnulty Norbert E | Rotary pump or motor apparatus |
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2007
- 2007-03-22 WO PCT/JP2007/056762 patent/WO2007119577A1/ja active Application Filing
- 2007-03-22 US US12/294,417 patent/US7980364B2/en not_active Expired - Fee Related
- 2007-03-22 RU RU2008142136/11A patent/RU2425265C2/ru not_active IP Right Cessation
- 2007-03-22 KR KR1020087025815A patent/KR20080111496A/ko not_active Application Discontinuation
- 2007-03-22 CN CNA2007800106038A patent/CN101427045A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5172871A (ja) * | 1974-11-18 | 1976-06-24 | Girling Ltd | Enbanbureeki |
US5147255A (en) * | 1990-04-03 | 1992-09-15 | Hurth Getriebe Und Zahnraeder G.M.B.H. | Spur gear transmission, in particular for a drive unit of an industrial truck |
JP2003247573A (ja) * | 2002-02-26 | 2003-09-05 | Mitsubishi Heavy Ind Ltd | 車両のブレーキ装置 |
JP2005029117A (ja) * | 2003-07-11 | 2005-02-03 | Tcm Corp | 車両用駆動装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110061985A1 (en) * | 2009-09-16 | 2011-03-17 | Kenichiro Nakamura | Multiple disc clutch and assembling method therefor |
US8469169B2 (en) * | 2009-09-16 | 2013-06-25 | Honda Motor Co., Ltd. | Multiple disc clutch and assembling method therefor |
USD883864S1 (en) | 2018-05-10 | 2020-05-12 | Allison Transmission, Inc. | Axle assembly |
Also Published As
Publication number | Publication date |
---|---|
KR20080111496A (ko) | 2008-12-23 |
RU2008142136A (ru) | 2010-04-27 |
RU2425265C2 (ru) | 2011-07-27 |
CN101427045A (zh) | 2009-05-06 |
US7980364B2 (en) | 2011-07-19 |
US20090277727A1 (en) | 2009-11-12 |
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