US20050160567A1 - Auxiliary locating mechanism for spring clamp - Google Patents
Auxiliary locating mechanism for spring clamp Download PDFInfo
- Publication number
- US20050160567A1 US20050160567A1 US10/761,342 US76134204A US2005160567A1 US 20050160567 A1 US20050160567 A1 US 20050160567A1 US 76134204 A US76134204 A US 76134204A US 2005160567 A1 US2005160567 A1 US 2005160567A1
- Authority
- US
- United States
- Prior art keywords
- spring clamp
- locking plate
- handle
- locating mechanism
- rack
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/14—Locking means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
- B25B7/18—Adjusting means for the operating arms
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44291—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
- Y10T24/44376—Spring or resiliently biased about pivot
- Y10T24/44385—Distinct spring
- Y10T24/44427—Distinct spring with position locking-means for gripping members
Definitions
- the present invention relates to an auxiliary locating mechanism for spring clamp, and more particularly to an auxiliary locating mechanism for spring clamp that may be conveniently operated in a manner meeting the ergonomics.
- a spring clamp is mainly used to firmly and tightly clamp two work pieces together to facilitate subsequent fabricating or machining of the work pieces. For example, two planks may be clamped together using the spring clamp and then drilled or cut.
- an auxiliary locating mechanism is either provided between two handles of the spring clamp, as shown in FIG. 1 , or on one of the two handles of the spring clamp, as shown in FIG. 2 . With the auxiliary locating mechanism shown in FIG. 1 or 2 , the two handles of the spring clamp may be temporarily held to the clamping position to tightly clamp two work pieces between them for fabricating, or released from the clamping position when the fabricating of the work pieces is completed.
- Both the conventional auxiliary locating mechanisms in FIGS. 1 and 2 are effective in terms of the function of temporarily holding the spring clamp handles to the clamping position and releasing the handles from the clamping position after the fabrication of the work pieces.
- both the two conventional auxiliary locating mechanisms do not allow an operator to manipulate them in a manner meeting the principle of ergonomics. For example, when the operator wants to release the two handles of the spring clamp from the clamping position set via the auxiliary locating mechanism shown in FIG. 1 , he would have to particularly extend one finger in a different direction to pull or push a release lever A of the auxiliary locating mechanism. Alternatively, when the operator wants to release the two handles of the spring clamp from the clamping position set via the auxiliary locating mechanism shown in FIG.
- a primary object of the present invention is to provide an improved auxiliary locating mechanism for spring clamp, and the auxiliary locating mechanism may be conveniently operated in a manner meeting the ergonomics.
- the auxiliary locating mechanism for spring clamp mainly includes a curved locking plate pivotally assembled at a supporting arm to an outer side of a first handle of the spring clamp and having a toothed member provided at a distance behind the supporting arm, and a rack having a front end fixedly connected to a point near a joint of a second handle of the spring clamp and a jaw extended from the second handle for teeth formed on the rack to face toward the toothed member of the locking plate.
- FIG. 1 shows a spring clamp using a first conventional auxiliary locating mechanism
- FIG. 2 shows a spring clamp using a second conventional auxiliary locating mechanism
- FIG. 3 shows a spring clamp having an auxiliary locating mechanism according to the present invention assembled to one of two handles of the spring clamp;
- FIG. 4 is a side view showing an initial state of the auxiliary locating mechanism of the present invention before the two handles of the spring clamp are pushed into a clamping position;
- FIG. 5 shows the state of the auxiliary locating mechanism of the present invention locking two handles of the spring clamp in the clamping position
- FIG. 6 shows the manner of operating the auxiliary locating mechanism of the present invention to release the two handles of the spring clamp from the clamping position
- FIG. 7 shows the state of the auxiliary locating mechanism of the present invention after the two handles of the spring clamp are released from the clamping position.
- the auxiliary locating mechanism for spring clamp of the present invention includes a curved locking plate 1 and a rack 2 .
- the locking plate 1 is assembled to a lateral outer side 31 of one handle 3 of a spring clamp, and has a curve corresponding to that of the lateral outer side 31 of the handle 3 .
- the locking plate 1 is provided at an inner side facing toward the handle 3 closer to a front thereof with a supporting arm 11 , on which a through hole 12 is formed for a screw or a rivet 13 to extend therethrough to connect the locking plate 1 to the handle 3 , such that the locking plate 1 may be pivotally turned about the screw or the rivet 13 relative to the handle 3 .
- the locking plate 1 is also provided at the inner side with a sideward projected toothed member 14 locating behind the supporting arm 11 by a predetermined distance.
- the toothed member 14 is provided at the sideward projected edge with a plurality of teeth 141 .
- a space 40 is normally kept between a root of the toothed member 14 and the inner side of the locking plate 1 .
- Two compression springs 5 , 6 are mounted in the space 40 between the toothed plate 14 and the locking plate 1 , and between rear ends of the handle 3 and the locking plate 1 , respectively.
- the compressed springs 5 , 6 provide a restoring force that helps the rear end of the locking plate 1 to return to an original position when the locking plate 1 is released from the locked position.
- the rack 2 has a predetermined length and is provided at a front end with a through hole 22 for another screw or rivet 13 to extend therethrough, so that the rack 2 is fixedly connected at the front end to a point near a joint 41 of the other handle 4 of the spring clamp and a jaw extended from a front end of the handle 4 .
- the rack 2 is provided along a longitudinal edge facing toward the locking plate 1 with a plurality of sequentially arranged teeth 21 , which are adapted to engage with the teeth 141 on the toothed member 14 .
- FIGS. 4 and 5 Please refer to FIGS. 4 and 5 .
- the locking plate 1 assembled to the handle 3 is simultaneously turned about the screw or rivet 13 at the supporting arm 11 to move its rear end toward the handle 3 .
- the toothed member 14 is moved toward the rack 2 for the teeth 141 to engage with some of the teeth 21 on the rack 2 corresponding to the toothed member 14 and be stopped by the engaged teeth 21 from moving any further, so that the handles 3 , 4 are also locked to the clamping position.
- FIGS. 6 and 7 Please refer to FIGS. 6 and 7 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Clamps And Clips (AREA)
Abstract
An auxiliary locating mechanism for spring clamp includes a curved locking plate pivotally assembled at a supporting arm to a first handle of the spring clamp and having a toothed member provided behind the supporting arm, and a rack fixedly connected at a front end to a joint of a second handle of the spring clamp and a jaw extended from the second handle with teeth formed thereon facing toward the locking plate. When the two handles are pushed at their rear ends into a clamping position, a rear end of the locking plate is simultaneously pushed to engage the toothed member with the rack and thereby locks the two handles to the clamping position. And, when a front end of the locking plate is pushed to disengage the toothed member from the rack, the two handles are automatically pushed open by a torsional spring on the spring clamp.
Description
- The present invention relates to an auxiliary locating mechanism for spring clamp, and more particularly to an auxiliary locating mechanism for spring clamp that may be conveniently operated in a manner meeting the ergonomics.
- A spring clamp is mainly used to firmly and tightly clamp two work pieces together to facilitate subsequent fabricating or machining of the work pieces. For example, two planks may be clamped together using the spring clamp and then drilled or cut. To enable convenient fabricating and machining of the two clamped work pieces, an auxiliary locating mechanism is either provided between two handles of the spring clamp, as shown in
FIG. 1 , or on one of the two handles of the spring clamp, as shown inFIG. 2 . With the auxiliary locating mechanism shown inFIG. 1 or 2, the two handles of the spring clamp may be temporarily held to the clamping position to tightly clamp two work pieces between them for fabricating, or released from the clamping position when the fabricating of the work pieces is completed. - Both the conventional auxiliary locating mechanisms in
FIGS. 1 and 2 are effective in terms of the function of temporarily holding the spring clamp handles to the clamping position and releasing the handles from the clamping position after the fabrication of the work pieces. However, both the two conventional auxiliary locating mechanisms do not allow an operator to manipulate them in a manner meeting the principle of ergonomics. For example, when the operator wants to release the two handles of the spring clamp from the clamping position set via the auxiliary locating mechanism shown inFIG. 1 , he would have to particularly extend one finger in a different direction to pull or push a release lever A of the auxiliary locating mechanism. Alternatively, when the operator wants to release the two handles of the spring clamp from the clamping position set via the auxiliary locating mechanism shown inFIG. 2 , he would have to particularly extend one finger in a different direction to depress a button B provided near a front end of one of the two handles of the spring clamp connected to the auxiliary locating mechanism. In either case, the operator is not allowed to hold the spring clamp at the handles while operates the auxiliary locating mechanism in a natural and convenient movement. It is therefore desirable to develop an improved and structurally simplified auxiliary locating mechanism for spring clamp, so that the spring clamp is more convenient for use. - A primary object of the present invention is to provide an improved auxiliary locating mechanism for spring clamp, and the auxiliary locating mechanism may be conveniently operated in a manner meeting the ergonomics.
- To achieve the above and other objects, the auxiliary locating mechanism for spring clamp according to the present invention mainly includes a curved locking plate pivotally assembled at a supporting arm to an outer side of a first handle of the spring clamp and having a toothed member provided at a distance behind the supporting arm, and a rack having a front end fixedly connected to a point near a joint of a second handle of the spring clamp and a jaw extended from the second handle for teeth formed on the rack to face toward the toothed member of the locking plate. When the two handles are forced at their rear ends to a clamping position, a rear end of the locking plate is simultaneously pushed to engage the toothed member with the rack and thereby locks the two handles to the clamping position. And, when a front end of the locking plate is pushed to disengage the toothed member from the rack, the two handles are automatically pushed open by a torsional spring on the spring clamp.
- The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
-
FIG. 1 shows a spring clamp using a first conventional auxiliary locating mechanism; -
FIG. 2 shows a spring clamp using a second conventional auxiliary locating mechanism; -
FIG. 3 shows a spring clamp having an auxiliary locating mechanism according to the present invention assembled to one of two handles of the spring clamp; -
FIG. 4 is a side view showing an initial state of the auxiliary locating mechanism of the present invention before the two handles of the spring clamp are pushed into a clamping position; -
FIG. 5 shows the state of the auxiliary locating mechanism of the present invention locking two handles of the spring clamp in the clamping position; -
FIG. 6 shows the manner of operating the auxiliary locating mechanism of the present invention to release the two handles of the spring clamp from the clamping position; and -
FIG. 7 shows the state of the auxiliary locating mechanism of the present invention after the two handles of the spring clamp are released from the clamping position. - Please refer to
FIG. 3 . The auxiliary locating mechanism for spring clamp of the present invention includes acurved locking plate 1 and arack 2. Thelocking plate 1 is assembled to a lateralouter side 31 of onehandle 3 of a spring clamp, and has a curve corresponding to that of the lateralouter side 31 of thehandle 3. Thelocking plate 1 is provided at an inner side facing toward thehandle 3 closer to a front thereof with a supportingarm 11, on which a throughhole 12 is formed for a screw or arivet 13 to extend therethrough to connect thelocking plate 1 to thehandle 3, such that thelocking plate 1 may be pivotally turned about the screw or therivet 13 relative to thehandle 3. Thelocking plate 1 is also provided at the inner side with a sideward projectedtoothed member 14 locating behind the supportingarm 11 by a predetermined distance. Thetoothed member 14 is provided at the sideward projected edge with a plurality ofteeth 141. Aspace 40 is normally kept between a root of thetoothed member 14 and the inner side of thelocking plate 1. Twocompression springs space 40 between thetoothed plate 14 and thelocking plate 1, and between rear ends of thehandle 3 and thelocking plate 1, respectively. When thelocking plate 1 is pivotally turned about the supporting point at the screw or therivet 13 to move its rear end toward thehandle 3 and enter into a locked position, the twocompression springs compressed springs locking plate 1 to return to an original position when thelocking plate 1 is released from the locked position. - The
rack 2 has a predetermined length and is provided at a front end with a throughhole 22 for another screw or rivet 13 to extend therethrough, so that therack 2 is fixedly connected at the front end to a point near ajoint 41 of theother handle 4 of the spring clamp and a jaw extended from a front end of thehandle 4. Therack 2 is provided along a longitudinal edge facing toward thelocking plate 1 with a plurality of sequentially arrangedteeth 21, which are adapted to engage with theteeth 141 on thetoothed member 14. When thelocking plate 1 is in a released position as shown inFIG. 3 , a clearance is left between theteeth 21 of therack 2 and theteeth 141 of thetoothed member 14. - Please refer to
FIGS. 4 and 5 . When the two handles 3, 4 of the spring clamp are fully forced near their rear ends to move into a clamping position, as indicated by the arrows, to tightly clamp two work pieces between two jaws of the spring clamp, thelocking plate 1 assembled to thehandle 3 is simultaneously turned about the screw or rivet 13 at the supportingarm 11 to move its rear end toward thehandle 3. At this point, thetoothed member 14 is moved toward therack 2 for theteeth 141 to engage with some of theteeth 21 on therack 2 corresponding to thetoothed member 14 and be stopped by theengaged teeth 21 from moving any further, so that thehandles FIGS. 6 and 7 . When thehandles locking plate 1 at a location a little in front of the supportingarm 11, and the rear end of thelocking plate 1 is lifted to disengage theteeth 141 of thetoothed member 14 from theteeth 21 of therack 2. At this point, the two handles 3, 4 automatically move away from each other to release from the clamping position due to an action force of a torsional spring provided on the spring clamp.
Claims (4)
1. An auxiliary locating mechanism for spring clamp, comprising:
a curved locking plate being provided at an inner side facing toward a first handle of said spring clamp closer to a front end thereof with a supporting arm, on which a through hole is formed for a rivet to extend therethrough to assemble said locking plate to said first handle, such that said locking plate may be pivotally turned about said rivet relative to said first handle; and
a rack being provided along a longitudinal edge facing toward said locking plate with a plurality of sequentially arranged teeth.
2. The auxiliary locating mechanism for spring clamp as claimed in claim 1 , wherein said curved locking plate is further provided at said inner side with a sideward projected toothed member locating behind said supporting arm by a predetermined distance, and said toothed member being provided at the sideward projected edge with a plurality of teeth.
3. The auxiliary locating mechanism for spring clamp as claimed in claim 1 , wherein said curved locking plate and a root of said toothed member have a predetermined space kept therebetween, and two compression springs being mounted in said space between said toothed member and said locking plate, and between rear ends of said first handle and said locking plate, respectively.
4. The auxiliary locating mechanism for spring clamp as claimed in claim 1 , wherein said rack is provided at a front end with a through hole for a rivet to extend therethrough and thereby fixedly connect said rack to a point near a joint of a second handle of said spring clamp and a jaw extended from a front end of said second handle, and a clearance is normally left between said teeth of said rack and said teeth of said toothed member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/761,342 US20050160567A1 (en) | 2004-01-22 | 2004-01-22 | Auxiliary locating mechanism for spring clamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/761,342 US20050160567A1 (en) | 2004-01-22 | 2004-01-22 | Auxiliary locating mechanism for spring clamp |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050160567A1 true US20050160567A1 (en) | 2005-07-28 |
Family
ID=34794815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/761,342 Abandoned US20050160567A1 (en) | 2004-01-22 | 2004-01-22 | Auxiliary locating mechanism for spring clamp |
Country Status (1)
Country | Link |
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US (1) | US20050160567A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080066588A1 (en) * | 2006-09-15 | 2008-03-20 | Ching-Chen Yang | Locking pliers with a locking lever between handles |
US20090325769A1 (en) * | 2008-06-27 | 2009-12-31 | Hugh Michael Miskel | Clamp for a weightlifting bar |
US20100304621A1 (en) * | 2009-06-02 | 2010-12-02 | Carrand Companies, Inc. | Jumper Cable Clamp |
US20120196468A1 (en) * | 2011-01-28 | 2012-08-02 | Hosiden Corporation | Connector |
US20130212844A1 (en) * | 2012-02-21 | 2013-08-22 | Jun Fan Chen | Adjustable clamping device |
US20160318361A1 (en) * | 2015-04-30 | 2016-11-03 | Chris Anderson | Trailer hitch ground connector |
US9821439B2 (en) * | 2016-02-03 | 2017-11-21 | Wade A. Smith | Hand clamp improvement and accessory |
US20220089282A1 (en) * | 2018-04-16 | 2022-03-24 | Preformed Line Products Co. | Mounting assembly for mounting clamp |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1772428A (en) * | 1930-01-20 | 1930-08-05 | John J Palotce | Pliers, tongs, or the like |
US4538485A (en) * | 1984-03-26 | 1985-09-03 | Tauno Saila | Lockable plier tool |
US4602535A (en) * | 1984-03-14 | 1986-07-29 | C. A. Weidmuller Gmbh & Co. | Locking-mechanism for preventing premature opening of a tool |
US4787279A (en) * | 1987-02-02 | 1988-11-29 | C. A. Weidmuller Gmbh & Co. | Tool of the pliers-type |
US6116124A (en) * | 1997-08-12 | 2000-09-12 | Great Neck Saw Manufacturers, Inc. | Adjustable pliers |
US6178855B1 (en) * | 1998-07-01 | 2001-01-30 | B!G Ventures, L.L.C. | Self-adjusting and/or self-locking pliers |
US6240815B1 (en) * | 2000-05-30 | 2001-06-05 | Chun-Nuan Huang | Workpiece clamping device |
US6308597B1 (en) * | 1996-10-01 | 2001-10-30 | Fast Industriprodukter Hb | Locking device for a hand tool |
US6336386B1 (en) * | 2000-07-21 | 2002-01-08 | Yung Jen Lee | Plier device having an adjustable opening |
US6564703B1 (en) * | 2002-05-16 | 2003-05-20 | Kun-Meng Lin | Structure of clip |
US6745441B1 (en) * | 2002-12-04 | 2004-06-08 | Li-Chieh Lin | Locking pliers |
-
2004
- 2004-01-22 US US10/761,342 patent/US20050160567A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1772428A (en) * | 1930-01-20 | 1930-08-05 | John J Palotce | Pliers, tongs, or the like |
US4602535A (en) * | 1984-03-14 | 1986-07-29 | C. A. Weidmuller Gmbh & Co. | Locking-mechanism for preventing premature opening of a tool |
US4538485A (en) * | 1984-03-26 | 1985-09-03 | Tauno Saila | Lockable plier tool |
US4787279A (en) * | 1987-02-02 | 1988-11-29 | C. A. Weidmuller Gmbh & Co. | Tool of the pliers-type |
US6308597B1 (en) * | 1996-10-01 | 2001-10-30 | Fast Industriprodukter Hb | Locking device for a hand tool |
US6116124A (en) * | 1997-08-12 | 2000-09-12 | Great Neck Saw Manufacturers, Inc. | Adjustable pliers |
US6178855B1 (en) * | 1998-07-01 | 2001-01-30 | B!G Ventures, L.L.C. | Self-adjusting and/or self-locking pliers |
US6240815B1 (en) * | 2000-05-30 | 2001-06-05 | Chun-Nuan Huang | Workpiece clamping device |
US6336386B1 (en) * | 2000-07-21 | 2002-01-08 | Yung Jen Lee | Plier device having an adjustable opening |
US6564703B1 (en) * | 2002-05-16 | 2003-05-20 | Kun-Meng Lin | Structure of clip |
US6745441B1 (en) * | 2002-12-04 | 2004-06-08 | Li-Chieh Lin | Locking pliers |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080066588A1 (en) * | 2006-09-15 | 2008-03-20 | Ching-Chen Yang | Locking pliers with a locking lever between handles |
US20090325769A1 (en) * | 2008-06-27 | 2009-12-31 | Hugh Michael Miskel | Clamp for a weightlifting bar |
US20100304621A1 (en) * | 2009-06-02 | 2010-12-02 | Carrand Companies, Inc. | Jumper Cable Clamp |
US8083555B2 (en) | 2009-06-02 | 2011-12-27 | Hopkins Manufacturing Corporation | Jumper cable clamp |
US8529281B2 (en) * | 2011-01-28 | 2013-09-10 | Toyota Boshoku Kabushiki Kaisha | Connector |
US20120196468A1 (en) * | 2011-01-28 | 2012-08-02 | Hosiden Corporation | Connector |
US20130212844A1 (en) * | 2012-02-21 | 2013-08-22 | Jun Fan Chen | Adjustable clamping device |
US20160318361A1 (en) * | 2015-04-30 | 2016-11-03 | Chris Anderson | Trailer hitch ground connector |
US9821439B2 (en) * | 2016-02-03 | 2017-11-21 | Wade A. Smith | Hand clamp improvement and accessory |
US10682743B2 (en) | 2016-02-03 | 2020-06-16 | Wade A. Smith | Hand clamp improvement and accessory |
US11229990B2 (en) | 2016-02-03 | 2022-01-25 | Wade A. Smith | Hand clamp improvement and accessory |
US20220089282A1 (en) * | 2018-04-16 | 2022-03-24 | Preformed Line Products Co. | Mounting assembly for mounting clamp |
US11905015B2 (en) * | 2018-04-16 | 2024-02-20 | Preformed Line Products Co. | Mounting assembly for mounting clamp |
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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 |