US20040123472A1 - Laser level with adjustable laser projection line - Google Patents
Laser level with adjustable laser projection line Download PDFInfo
- Publication number
- US20040123472A1 US20040123472A1 US10/706,227 US70622703A US2004123472A1 US 20040123472 A1 US20040123472 A1 US 20040123472A1 US 70622703 A US70622703 A US 70622703A US 2004123472 A1 US2004123472 A1 US 2004123472A1
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- US
- United States
- Prior art keywords
- laser
- housing
- generator
- knob
- laser generator
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000007799 cork Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/005—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels altimeters for aircraft
Definitions
- the present invention relates to an alignment-product which reflects a line on a surface as a positioning reference, and particularly to a laser level which marks a line on a reference surface with the fanned beam projected by a laser generator.
- the former can merely project a line parallel to the baseplane of its pedestal; the latter can form two lines vertical with each other, but there is a disadvantage that two laser generators are needed, and as the switch is turned on, required or not, the two laser generators project beams simultaneously, thereby causing much more power consumption.
- Another object of the present invention is to provide a means to mount the laser level on a metallic surface.
- a further object is to provide a separate base plate which can protrude a plurality of retractable pins to suspend and hold the laser level on a surface of plastic, cork, wood, drywall or other soft object.
- An even further object of this invention is to provide one or more level bubbles to indicate whether the laser beam is horizontally or vertically level.
- the laser alignment device of the present invention includes a support bracket, a clamshell housing defined by a left clamshall housing member and a right clamshell housing member, a laser generator, a battery to power the laser generator, a cover for a battery pack, a switch, a protective door and a rotating mechanism.
- the protective door is used to activate the trigger of the linked switch.
- the laser generator will be switched off when the door is closed, and the lens of the laser generator will be protected against dust.
- the switch connects the laser generator to the power supply and the laser generator will project a fan-shaped laser beam to form a line on a surface.
- the rotating mechanism includes a knob which can rotate from 0 to 90 degrees, and which is coupled to the laser generator to rotate the laser generator when the knob is turned, thereby causing rotation of the line on the plane.
- a magnetic attachment means on the base of the support bracket.
- a metallic object e.g., a pipe or metal stud
- the laser level can be positioned on a non-horizontal plane in a realtively secure position, and avoid instability.
- the laser level with adjustable laser projection line also includes a separate removable mounting baseplate having two or more retractable pins which can be extended from the removable mounting baseplate and inserted into the wall, wood, plastic or other soft object as desired. When not in use, the pins can retract into a cavity in the removable mounting baseplate.
- the laser level with adjustable laser projection line can be powered by an internal battery. The user need only screw the cover off without the aid of a tool to remove the discharged battery cells and fill in new battery cells to power the laser generator.
- the laser level can further comprise two conventional level bubbles which are perpendicular to each other on the top of the laser level, The two level bubbles are both parallel to the bottom of the laser level, for orientation or leveling a precise horizontal line or plumb line.
- the laser level with adjustable laser projection line disclosed by the present invention can expediently mark a reference line accordingly on a workpiece as needed.
- the reference line can be parallel, vertical or be adjusted to other angular degrees to the bottom of the laser level.
- FIG. 1 illustrates a perspective view of a preferred embodiment of a laser level with adjustable laser projection line according to the present invention
- FIG. 2 is an inner perspective view of the laser level of FIG. 1 with left clamshell housing member removed;
- FIG. 3 is a sectional view of the mechanism for rotating the laser when the mechanism is rotated to its right limit with the laser beam perpendicular to the bottom plate of the laser level;
- FIG. 4 is a sectional view of the rotating mechanism when it is rotated to its left limit with the laser beam parallel to the bottom plate of the laser level;
- FIG. 5 is a sectional view of the removable base plate
- FIG. 6 is a sectional view of the removable base plate wherein the positioning pins are retracted inside the removable base plate;
- FIG. 7 is a sectional view of the removable base plate wherein the positioning pins protrude outward;
- FIG. 8 is a perspective view of the laser level with adjustable laser projection line when it is positioned and held on a vertical plane.
- the laser level with adjustable laser projection line 100 of the present invention comprises a support bracket 1 , a left clamshell housing member 2 , a right clamshell housing member 3 , a laser protection door 4 , a laser generator 10 mounted on the front bracket 1 B of the support bracket 1 , a battery pack 11 or power supply to power the laser generator 10 , a switch 41 to control the laser generator 10 and a cover 6 for the battery pack.
- the protective door 4 can trigger the switch 41 when it is opened or closed, as shown in FIG. 1. As the door 4 is in the closed position, it slides the switch 41 to the off position and switches off the laser generator 10 .
- the closed door 4 also protects the laser generator 10 and lens 10 A against dust.
- the laser generator 10 in the laser alignment device 100 of the present invention includes a rotating mechanism 5 , which can have a knob 51 secured on the laser generator 10 which will rotate along with the rotation of knob 51 .
- knob 51 When knob 51 is turned clockwise to its limit, the planar beam projected by the laser generator 10 will be parallel to the bottom of laser level 100 (FIG. 4); and, when knob 51 is turned counterclockwise to its limit (the angular degree of rotation preferably being 90 degrees), the planer beam projected by the laser generator 10 will be perpendicular to the bottom of the laser alignment device 100 (FIG. 3).
- knob 51 To avoid knob 51 from rotating arbitrarily and affecting the stability of the laser beam position accordingly, it is preferred to arrange two magnetic members 52 , 53 on knob 51 , and arrange two fastening members 54 , 55 on the corresponding position of the front bracket 1 B.
- the fastening member 54 When the knob 51 being rotated to its clockwise limit, the fastening member 54 is caught by the magnetic member 53 ; and when knob 51 rotates to its counterclockwise limit, the fastening member 55 is caught by the magnetic member 52 , ensuring the position of knob 51 and thereby maintaining the stability of the laser beam position.
- the laser alignment device 100 of the present invention may advantageously comprise one or more leveling devices such as bubbles 8 , 9 to orientate or level the laser level 100 on a horizontal or vertical plane.
- the leveling bubbles 8 , 9 are parallel to the bottom of the laser level 100 .
- Bubble 8 is used to level the horizontal relationship of the elongated side position of the laser level with adjustable laser projection line 100
- bubble 9 is used to level the horizontal relationship of fore-and-aft position of the laser level 100 .
- laser level 100 can provide accurate horizontal lines and plumb lines with the usage of the level bubbles 8 , 9 .
- the laser level with adjustable laser protection line 10 as described above can also be used on a horizontal position for a metallic surface.
- a magnet 12 is mounted on the base 1 A of the support bracket 1 of the laser level 100 , thereby allowing laser alignment device 100 to be placed and held on an arbitrary portion of the metallic surface.
- a removable baseplate 7 may be used with the laser level 100 for mounting.
- the baseplate 7 comprises two pushpads 73 each including at least one retractable positioning pin 72 .
- pushpads 73 are relaxed, the retractable pins 72 are retracted within the removable mounting baseplate 7 , as shown in FIG. 6, thus preventing the operator from being stabbed carelessly.
- the positioning pins 72 will extend outwardly from the bottom 74 of the mounting baseplate 7 as shown in FIG. 7.
- the mounting baseplate 7 can be mounted to the surface of a wall (drywall, plastic, plaster or other surface) by inserting the retractable pins 72 into the surface.
- the laser level 100 can then be attached to the mounting baseplate 7 by placing the magnet 12 on the bottom of the laser level 100 to a metallic attachment surface 71 on the mounting baseplate 7 thereby fastening the laser level 100 to the baseplate 7 .
- FIG. 8 is a perspective view of the laser alignment device 100 when it is situated on the vertical plane with the laser beam projecting downwardly.
Abstract
Description
- This application claims priority from Chinese Application No. 02293048.5, filed on Dec. 27, 2002.
- The present invention relates to an alignment-product which reflects a line on a surface as a positioning reference, and particularly to a laser level which marks a line on a reference surface with the fanned beam projected by a laser generator.
- There are many kinds of laser alignment devices, which project laser beams by laser generators to mark lines. One such device is designed by U.S. Tool Co. (U.S. Patent Application Publication No. US2002/0178596A1), which can project a line of fixed orientation. Another such device is marketed by U.S. CTB/Berger, which can project a horizontal line and a plumb line decussate to each other on walls perpendicular to the direction of propagation of the laser. The former can merely project a line parallel to the baseplane of its pedestal; the latter can form two lines vertical with each other, but there is a disadvantage that two laser generators are needed, and as the switch is turned on, required or not, the two laser generators project beams simultaneously, thereby causing much more power consumption.
- It is an object of the present invention to provide a laser level with only one laser generator which can be rotated 90 degrees to alter the location relationship of the laser beam with the base plane of the laser level.
- Another object of the present invention is to provide a means to mount the laser level on a metallic surface.
- A further object is to provide a separate base plate which can protrude a plurality of retractable pins to suspend and hold the laser level on a surface of plastic, cork, wood, drywall or other soft object.
- An even further object of this invention is to provide one or more level bubbles to indicate whether the laser beam is horizontally or vertically level.
- To achieve the objects hereinbefore, the laser alignment device of the present invention includes a support bracket, a clamshell housing defined by a left clamshall housing member and a right clamshell housing member, a laser generator, a battery to power the laser generator, a cover for a battery pack, a switch, a protective door and a rotating mechanism. The protective door is used to activate the trigger of the linked switch. The laser generator will be switched off when the door is closed, and the lens of the laser generator will be protected against dust. When the door is opened, the switch connects the laser generator to the power supply and the laser generator will project a fan-shaped laser beam to form a line on a surface.
- The rotating mechanism includes a knob which can rotate from 0 to 90 degrees, and which is coupled to the laser generator to rotate the laser generator when the knob is turned, thereby causing rotation of the line on the plane.
- There may be a magnetic attachment means on the base of the support bracket. When it is necessary to secure the laser level on a surface of a metallic object (e.g., a pipe or metal stud) one needs only to place the laser level with adjustable laser projection line onto the metallic object, and the laser level will be held there via the magnetic attachment means. In this manner, the laser level can be positioned on a non-horizontal plane in a realtively secure position, and avoid instability.
- The laser level with adjustable laser projection line also includes a separate removable mounting baseplate having two or more retractable pins which can be extended from the removable mounting baseplate and inserted into the wall, wood, plastic or other soft object as desired. When not in use, the pins can retract into a cavity in the removable mounting baseplate.
- The laser level with adjustable laser projection line can be powered by an internal battery. The user need only screw the cover off without the aid of a tool to remove the discharged battery cells and fill in new battery cells to power the laser generator.
- The laser level can further comprise two conventional level bubbles which are perpendicular to each other on the top of the laser level, The two level bubbles are both parallel to the bottom of the laser level, for orientation or leveling a precise horizontal line or plumb line.
- The laser level with adjustable laser projection line disclosed by the present invention can expediently mark a reference line accordingly on a workpiece as needed. The reference line can be parallel, vertical or be adjusted to other angular degrees to the bottom of the laser level.
- FIG. 1 illustrates a perspective view of a preferred embodiment of a laser level with adjustable laser projection line according to the present invention;
- FIG. 2 is an inner perspective view of the laser level of FIG. 1 with left clamshell housing member removed;
- FIG. 3 is a sectional view of the mechanism for rotating the laser when the mechanism is rotated to its right limit with the laser beam perpendicular to the bottom plate of the laser level;
- FIG. 4 is a sectional view of the rotating mechanism when it is rotated to its left limit with the laser beam parallel to the bottom plate of the laser level;
- FIG. 5 is a sectional view of the removable base plate;
- FIG. 6 is a sectional view of the removable base plate wherein the positioning pins are retracted inside the removable base plate;
- FIG. 7 is a sectional view of the removable base plate wherein the positioning pins protrude outward;
- FIG. 8 is a perspective view of the laser level with adjustable laser projection line when it is positioned and held on a vertical plane.
- Referring to FIGS. 1 and 2, the laser level with adjustable
laser projection line 100 of the present invention comprises asupport bracket 1, a leftclamshell housing member 2, a rightclamshell housing member 3, alaser protection door 4, alaser generator 10 mounted on thefront bracket 1B of thesupport bracket 1, abattery pack 11 or power supply to power thelaser generator 10, aswitch 41 to control thelaser generator 10 and acover 6 for the battery pack. Theprotective door 4 can trigger theswitch 41 when it is opened or closed, as shown in FIG. 1. As thedoor 4 is in the closed position, it slides theswitch 41 to the off position and switches off thelaser generator 10. The closeddoor 4 also protects thelaser generator 10 andlens 10A against dust. When thedoor 4 is pushed downwardly to accesslens 10A of thelaser generator 10, as shown in FIG. 2, thedoor 4 slides theswitch 41 to the on position at the same time, switching on thelaser generator 10 to project a fan-shaped laser beam 13 and form aline 131 on the surface to be illuminated. - Referring now to FIGS. 3 and 4, the
laser generator 10 in thelaser alignment device 100 of the present invention includes arotating mechanism 5, which can have aknob 51 secured on thelaser generator 10 which will rotate along with the rotation ofknob 51. Whenknob 51 is turned clockwise to its limit, the planar beam projected by thelaser generator 10 will be parallel to the bottom of laser level 100 (FIG. 4); and, whenknob 51 is turned counterclockwise to its limit (the angular degree of rotation preferably being 90 degrees), the planer beam projected by thelaser generator 10 will be perpendicular to the bottom of the laser alignment device 100 (FIG. 3). To avoidknob 51 from rotating arbitrarily and affecting the stability of the laser beam position accordingly, it is preferred to arrange twomagnetic members knob 51, and arrange two fasteningmembers front bracket 1B. When theknob 51 being rotated to its clockwise limit, the fasteningmember 54 is caught by themagnetic member 53; and whenknob 51 rotates to its counterclockwise limit, the fasteningmember 55 is caught by themagnetic member 52, ensuring the position ofknob 51 and thereby maintaining the stability of the laser beam position. - Referring to FIGS. 1 and 2, the
laser alignment device 100 of the present invention may advantageously comprise one or more leveling devices such asbubbles laser level 100 on a horizontal or vertical plane. Theleveling bubbles laser level 100.Bubble 8 is used to level the horizontal relationship of the elongated side position of the laser level with adjustablelaser projection line 100, andbubble 9 is used to level the horizontal relationship of fore-and-aft position of thelaser level 100. Thus,laser level 100 can provide accurate horizontal lines and plumb lines with the usage of thelevel bubbles - The laser level with adjustable
laser protection line 10 as described above can also be used on a horizontal position for a metallic surface. To solve this problem, as shown in FIG. 2, amagnet 12 is mounted on thebase 1A of thesupport bracket 1 of thelaser level 100, thereby allowinglaser alignment device 100 to be placed and held on an arbitrary portion of the metallic surface. - To position
laser level 100 on a wood, plastic, drywall or other surface, as shown in FIG. 1, aremovable baseplate 7 may be used with thelaser level 100 for mounting. As shown in FIG. 5, thebaseplate 7 comprises twopushpads 73 each including at least oneretractable positioning pin 72. In the embodiment shown in FIGS. 5-7, there are threeretractable pins 72 on eachpushpad 73. Whenpushpads 73 are relaxed, theretractable pins 72 are retracted within theremovable mounting baseplate 7, as shown in FIG. 6, thus preventing the operator from being stabbed carelessly. Whenpushpads 73 are pressed down, thepositioning pins 72 will extend outwardly from thebottom 74 of themounting baseplate 7 as shown in FIG. 7. Themounting baseplate 7 can be mounted to the surface of a wall (drywall, plastic, plaster or other surface) by inserting theretractable pins 72 into the surface. Thelaser level 100 can then be attached to themounting baseplate 7 by placing themagnet 12 on the bottom of thelaser level 100 to ametallic attachment surface 71 on themounting baseplate 7 thereby fastening thelaser level 100 to thebaseplate 7. - FIG. 8 is a perspective view of the
laser alignment device 100 when it is situated on the vertical plane with the laser beam projecting downwardly.
Claims (14)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/288,010 US20060070251A1 (en) | 2003-11-12 | 2005-11-28 | Line-marking device with rotatable laser |
US11/383,041 US7243433B2 (en) | 2002-12-27 | 2006-05-12 | Laser level with adjustable laser projection line |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02293048.5 | 2002-12-27 | ||
CN02293048U CN2588326Y (en) | 2002-12-27 | 2002-12-27 | Laser line marking device |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/288,010 Continuation-In-Part US20060070251A1 (en) | 2003-11-12 | 2005-11-28 | Line-marking device with rotatable laser |
US11/383,041 Continuation US7243433B2 (en) | 2002-12-27 | 2006-05-12 | Laser level with adjustable laser projection line |
Publications (3)
Publication Number | Publication Date |
---|---|
US20040123472A1 true US20040123472A1 (en) | 2004-07-01 |
US20040205972A2 US20040205972A2 (en) | 2004-10-21 |
US7055252B2 US7055252B2 (en) | 2006-06-06 |
Family
ID=29429786
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/706,227 Active 2024-10-11 US7055252B2 (en) | 2002-12-27 | 2003-11-12 | Laser level with adjustable laser projection line |
US11/383,041 Expired - Fee Related US7243433B2 (en) | 2002-12-27 | 2006-05-12 | Laser level with adjustable laser projection line |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/383,041 Expired - Fee Related US7243433B2 (en) | 2002-12-27 | 2006-05-12 | Laser level with adjustable laser projection line |
Country Status (6)
Country | Link |
---|---|
US (2) | US7055252B2 (en) |
CN (1) | CN2588326Y (en) |
CA (1) | CA2453808A1 (en) |
DE (1) | DE20320250U1 (en) |
FR (1) | FR2849499B3 (en) |
GB (1) | GB2398385B (en) |
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US20050022399A1 (en) * | 2003-08-01 | 2005-02-03 | Wheeler Thomas J. | Laser level |
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US20050226305A1 (en) * | 2004-04-09 | 2005-10-13 | Hsu Chao F | Laser beam projection device having a rotary locking structure |
US20050246912A1 (en) * | 2004-05-07 | 2005-11-10 | Marshall James D | Line generating device |
US20050278966A1 (en) * | 2004-06-18 | 2005-12-22 | Liu Carl Y | Laser level |
US20060016083A1 (en) * | 2004-07-23 | 2006-01-26 | Index Measuring Tape Co., Ltd. | Level laser indicator |
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US20060095099A1 (en) * | 2004-02-04 | 2006-05-04 | Shanks Steven C | Stand-alone scanning laser device |
US20060112576A1 (en) * | 2004-11-30 | 2006-06-01 | Lu Jian H | Hand-held laser level with retractable adhesive-type retention feature |
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Also Published As
Publication number | Publication date |
---|---|
GB0329927D0 (en) | 2004-01-28 |
FR2849499B3 (en) | 2004-10-29 |
CN2588326Y (en) | 2003-11-26 |
FR2849499A3 (en) | 2004-07-02 |
US20040205972A2 (en) | 2004-10-21 |
US7055252B2 (en) | 2006-06-06 |
CA2453808A1 (en) | 2004-06-27 |
US7243433B2 (en) | 2007-07-17 |
GB2398385A (en) | 2004-08-18 |
GB2398385A9 (en) | 2004-08-18 |
GB2398385B (en) | 2007-03-28 |
US20060191147A1 (en) | 2006-08-31 |
DE20320250U1 (en) | 2004-03-04 |
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