CN101618532B - Wrench with tooth difference at two clamped ends of single pawl - Google Patents
Wrench with tooth difference at two clamped ends of single pawl Download PDFInfo
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- CN101618532B CN101618532B CN2008103025560A CN200810302556A CN101618532B CN 101618532 B CN101618532 B CN 101618532B CN 2008103025560 A CN2008103025560 A CN 2008103025560A CN 200810302556 A CN200810302556 A CN 200810302556A CN 101618532 B CN101618532 B CN 101618532B
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- pallet
- engaging piece
- tooth
- drive division
- storage tank
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Abstract
The invention discloses a wrench with tooth difference at two clamped ends of a single pawl. The wrench is mainly provided with a drive piece in a drive part of an inner diameter of a wrench tool drive head and provided with at least two holding grooves on the drive piece, a pawl is pivoted in each holding groove with by a pivot and a reversing piece is arranged between the holding grooves, the reversing piece is provided with an elastic piece and a propping piece opposite to each pawl, the propping piece is used for propping the back side of each pawl, the pawl is provided with a clamped end opposite to the inner diameter of the drive part, and the two clamped ends are asymmetrical and are provided with tooth shapes opposite to the drive part, the tooth shape of the two clamped ends of each pawl has a tooth-pitch difference smaller than the inner diameter of the drive part, each pawl in each holding groove can be arranged in a crossed or opposite manner to form a wrench structure state of micro angle drive and general angle drive, and the functions can be realized by respectively installing the same pawl in each holding groove so as to obtain a design with low cost.
Description
Technical field
The present invention relates to a kind of spanner, the spanner that particularly a kind of single pallet two fastening ends have the tooth difference.
Background technology
Spanner structure in the known hand-held tool, if the structure with spanner driving head inside is broadly divided into commutation and structure not capable of reversing, and wherein, switchable structure then can be divided into two kinds, one separates setting for reversing arrangement with the actuator of driving head inner radius, one actuator for reversing arrangement and driving head inner radius is all the design of one, wherein, the structure that actuator in reversing arrangement and the driving head is wholely set, can be as shown in Figures 1 and 2, driving head 11 inner radius of its spanner 10 are provided with the drive division 110 of profile of tooth, and these drive division 110 inner radius are provided with an actuator 20, be provided with the reversing piece 31 of a reversing arrangement 30 in this actuator 20 in addition, the both sides of this actuator 20 are pivoted with a pallet 40 with pivot in addition, the two ends of this pallet 40 are set as the fastening end 41 with relative profile of tooth with respect to driving head 11 drive divisions 110 profile of tooth places, wherein, profile of tooth system on the fastening end 41 of this each pallet 40 is the form of a symmetry, and on two fastening ends 41 tooth pitch of profile of tooth identical and both there is no any potential difference, therefore, pallet 40 fastening ends of locating in these actuator 20 both sides 41 are in course of action, fastening end 41 flank of tooth of two pallets 40 are equipped on driving head 11 drive divisions 110 simultaneously, the structural form of blocking so simultaneously, because the angle that its blocking drives is subject to the profile of tooth on driving head 11 drive divisions 110, general present 24 teeth that mostly are most, just, this actuator 20 is jumped the angle of tooth driving about 15 degree angles, it is very big to jump the tooth angle degree, can't use this spanner 10 in narrow space, so the necessity in the improvement is arranged.
Aforesaid spanner structure is promptly as the structure of No. 6205891 case of United States Patent (USP), only the pallet on this spanner actuator forms the fastening end of a dentation in addition in the periphery of relative drive division, and the design of this fastening end is the form of a blocking simultaneously when making the drive division of two pallets and blocking spanner driving head, therefore have the disappearance of aforementioned known structure, its angle of jumping the tooth blocking is excessive, the scope that the spanner shank swings back and forth is excessive, must there be suitable space to use, can't be applicable to the driving operation in the small space.
In addition in No. 404879 case of TaiWan, China patent announcement, it is the structural form that two pallets is set as not blocking simultaneously, the only design of this structural form, be that the profile of tooth of this two pallet is located at symmetrical shape as shown in Figure 2, the profile of tooth that the fastening end 41 at its pallet 40 two ends is provided with is symmetrical form, only fastening end 41 profiles of tooth of two pallets 40 are different potential difference structures on the same actuator 20, so that the fastening end profile of tooth of a pallet snaps in the drive division of spanner driving head, the fastening end of another pallet does not then produce blocking with the drive division of spanner driving head, therefore, the profile of tooth of this two pallet belongs to different designs, though reach the function that different blocking micro angle swingings are jumped the tooth blocking, and can apply in the small space, only the structure of two pallets belongs to the tooth Shape Design of different potential differences, so causing two pallets must distinguish manufacturing cost improves relatively, and when two pallets belong to different potential difference tooth Shape Design, when spanner uses this two pallet, only can be the function of little angle blocking, even the time spent is equipped in the drive division of spanner driving head with the fastening end of single pallet forever, the strength of its blocking is limited, can't be in response to the demand of big torsion, so necessity of improvement is arranged.
Summary of the invention
Technical problem to be solved by this invention is, at the deficiencies in the prior art, provides a kind of and reaches little angle and drive and can reduce cost, and also can reach the spanner that general angle drives and single pallet two fastening ends of big relatively torsion blocking demand have the tooth difference simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the spanner that a kind of single pallet two fastening ends have the tooth difference, and it comprises: a driving head, this driving head inner radius forms the drive division of a continuous profile of tooth; One actuator is located in this drive division, and this actuator exposes outside this drive division and forms a drive end, and the big footpath body end of this actuator in this drive division is provided with at least two storage tanks; At least with respect to the pallet of storage tank quantity, this pallet is located in the relative storage tank, and this pallet forms fastening end with respect to the two ends of the drive division of this driving head, two fastening ends are first engaging piece and the second engaging piece setting of relative profile of tooth with respect to this drive division, and first engaging piece of these pallet two fastening ends and second engaging piece have the potential difference less than this drive division one tooth; Pallet in this each storage tank is provided with in the same way with the pallet of same structural form.
The spanner that a kind of single pallet two fastening ends have the tooth difference, it comprises: a driving head, this driving head inner radius forms the drive division of a continuous profile of tooth; One actuator is located in this drive division, and this actuator exposes outside this drive division and forms a drive end, and the big footpath body end of this actuator in this drive division is provided with at least two storage tanks; It is characterized in that: also comprise at least pallet with respect to storage tank quantity, this pallet is located in the relative storage tank, and this pallet forms fastening end with respect to the two ends of the drive division of this driving head, two fastening ends are first engaging piece and the second engaging piece setting of relative profile of tooth with respect to this drive division, and first engaging piece of these pallet two fastening ends and second engaging piece have the potential difference less than this drive division one tooth; Pallet in this each storage tank oppositely is provided with the pallet of same structural form.
Compared with prior art, the beneficial effect that the present invention had is: the present invention is provided with two relative pallets by the actuator in the spanner driving head, this two pallet respectively has two fastening ends, two fastening ends of this pallet respectively form profile of tooth, and the fastening end that has asymmetric profile of tooth in the same pallet, the two fastening end profiles of tooth system that is same pallet is with the potential difference design less than a tooth pitch of drive division profile of tooth, and when two pallets are set, can two pallets one on same brake be the forward setting, another is oppositely to be provided with, make and stretch out the brake card and have potential difference to the profile of tooth of the fastening end of drive division, so, can make different pallets become the drives structure form of a little angle in different time and drive division blocking, and reach single pallet structure, forward and reverse respectively brake both sides that are arranged at reach the purpose that little angle drives and can reduce cost at the same time.
In addition, the present invention is by the pallet on the actuator in the spanner driving head, two fastening ends in single pallet, be set as profile of tooth with potential difference, be an asymmetric structural form, two fastening end profiles of tooth of same pallet system is with the potential difference designer less than a tooth pitch of drive division profile of tooth, and when two pallets are set, can two pallets on same brake be the setting of relative forward, promptly stretching out the brake card is the profile of tooth of identical tooth pitch position to the profile of tooth of the fastening end of drive division, so, can make different pallets become the drives structure form of general angle in same time and drive division blocking, and reaching demand in response to big stress, forward is arranged at the brake both sides respectively, reaches at the same time that general angle drives and the demand purpose of big relatively torsion blocking.
Description of drawings
Fig. 1 is known cross-sectional view.
Fig. 2 is known pallet schematic top plan view.
Fig. 3 is a schematic perspective view of the present invention.
Fig. 4 is the cross-sectional view of overlooking of the present invention.
Fig. 5 is a pallet schematic top plan view of the present invention.
Fig. 6 is that two of same pallet structural forms of the present invention are different from the schematic top plan view that Fig. 4 direction is provided with.
Label declaration
Spanner 10 driving heads 11 drive divisions 110
Reversing piece 31 elastic components 32 top products 33
Second engaging piece 411
Angle theta is set
The specific embodiment
Relevant the present invention is for reaching above-mentioned purpose, the technology that is adopted, means and other effect, now lift a preferable possible embodiments and cooperate graphic detailed description as after, believe above-mentioned purpose of the present invention, feature and other advantage, when can by one deeply and concrete understanding, only the present invention is not only embodiment, holds this explanation.
See also Fig. 3, shown in 4, the head of this spanner 10 is a driving head 11, and the drive division 110 that these driving head 11 inner hollow diameter places have the continuous profile of tooth of five equilibrium, be provided with an actuator 20 in these drive division 110 inner radius, this actuator 20 is incorporated in the drive division 110 with C shape button or alternate manner, and exposing outside the square column type end, thin footpath of drive division 110, this actuator 20 cooperate a steel ball to form a drive end 21, the big footpath body end of this actuator 20 in drive division 110 is provided with the reversing arrangement 30 of a commutation effect in addition, and these body end both sides, actuator 20 big footpath respectively are provided with a storage tank 22, be pivoted with a pallet 40 with a pivot 23 in this storage tank 22, this reversing arrangement 30 mainly has a reversing piece 31, these reversing piece 31 central authorities penetrate actuator 20, and in being provided with at least one elastic component 32 with respect to pallet 40 places, and top product 33 to a bullet type of each pallet 40 overhead is set respectively with these elastic component 32 ends, rotation by aforementioned reversing piece 31, so that drive top product 33, and make pallet 40 different ends stretch out the scope of actuator 20 and drive with drive division 110 blockings with different angle top each pallet 40 opposing end faces of system;
And aforesaid pallet 40 middle sections are that pivot 23 passes, the back side is that aforementioned reversing arrangement 30 is 33 pushing tows of top product of elastic component 32 pushing tows, and pallet 40 is with respect to the two ends system formation fastening end 41 of driving head 11 drive divisions 110, each fastening end 41 is provided with respect to first engaging piece 410 and second engaging piece 411 that drive division 110 is relative profile of tooth, and the invention is characterized in:
First engaging piece 410 of profile of tooth and 411 designs of second engaging piece on 40 liang of fastening ends 41 of this pallet, lie in first engaging piece 410 of two fastening ends 41 of single pallet 40 and second engaging piece 411 and have potential difference less than a tooth, as if cooperating shown in Figure 5 with Fig. 3 of the present invention enforcement state extremely shown in Figure 4 and discussing, this pallet 40 extends the angle theta that is provided with that angle is θ by mind-set both sides in the pivot 23, this is provided with between the extension line of angle theta both sides and the tangent place of fastening end 41 peripheries the position that is provided with for first engaging piece 410 of profile of tooth and second engaging piece 411, and this first engaging piece 410 and second engaging piece 411 are an asymmetric form mutually, the i.e. setting of this first engaging piece 410 starts from extremely being finished by tooth paddy behind the number tooth with crown, second engaging piece 411 then is non-ly to begin with crown, with this legend, the beginning of second engaging piece 411 starts from finishing to crown behind the number teeth with tooth paddy, 411 of first engaging piece 410 that makes two fastening ends 41 and second engaging pieces be relative have less than the tooth of a tooth poor, so when the structure of same pallet 40 in this two storage tank 22 with different directions or equidirectional setting, not only can reach outside pallet 40 costs of manufacture can reduce relatively, more can reach with the needs on realistic according to the assembling that different driving torsion demands is carried out on the different directions.
When in actuator 20 both sides storage tanks 22, pallet 40 being set, when system faces these storage tank 22 directions with the user, this two pallet 40 gives not in the same way setting by the pallet 40 of two same structural forms, even two pallets 40 simultaneously by the top product 33 of elastic component 32 pushing tows on the reversing piece 31 of reversing arrangement 30 passing stretch out the end face of fastening end 41, one pallet 40 is that first engaging piece 410 stretches out, and 40 of another pallets are that second engaging piece 411 stretches out and drive division 110 blockings; So, after this driving head 11 drives actuator 20 actions, if original first engaging piece, 410 blocking drive divisions 110 with a pallet 40, and second engaging piece 411 of another pallet 40 not with drive division 110 blockings, begin to swing rollback and work as driving head 11, when being about the angle of drive division 110 half teeth, former second engaging piece 411 not with the pallet 40 of drive division 110 blockings, be the form that can drive mutually with drive division 110 blockings immediately, make the driving head 11 and the blocking drive of actuator 20 only want half tooth angle degree of backswing drive division 110 to get final product, promptly become the form that a little angle drives.
And when two pallets 40 in 20 liang of storage tanks 22 of actuator be as shown in Figure 6 direction is set the time, when system faces these storage tank 22 directions with the user, this two pallet 40 gives in the same way setting by the pallet 40 of two same structural forms, even two pallets 40 simultaneously by the top product 33 of elastic component 32 pushing tows on the reversing piece 31 of reversing arrangement 30 passing stretch out the end face of fastening end 41, if one pallet 40 is that first engaging piece 410 stretches out, 40 of another pallets are that first engaging piece 410 stretches out and drive division 110 blockings, stretch out then that another pallet 40 also stretches out and drive division 110 blockings with second engaging piece 411 if one pallet 40 is second engaging piece 411; So, this two pallet 40 stretches out and drive division 110 blockings with the engaging piece of same position simultaneously, the angle of its driving head 11 swings is necessary for the twice of Fig. 4 embodiment, and only the satiable torsion demand of embodiment of this legend then is the twice of last embodiment, can be in response to the demand of big torsion; Wherein, more because the drive division 110 internal diameter profiles of tooth of driving head 11 of the present invention are constant fully, can directly bear bigger torsion, add the asymmetric of profile of tooth on two pallets, 40 fastening ends 41, and can reach on the overall structure can single pallet 40 structure, by the setting on the reverse or same direction, and can carry out the structure setting of little angle and general angle driving spanner, more can reach the purpose that high torsion is implemented.
So as can be known by aforesaid analysis, the engaging piece of 40 liang of fastening ends 41 of pallet of the present invention is an asymmetric structural form, promptly two engaging pieces have the tooth potential difference, promptly the profile of tooth of first engaging piece 410 and second engaging piece 411 differs less than drive division 110 tooth pitches, though the profile of tooth and the drive division 110 of first engaging piece 410 and second engaging piece 411 are oppositely arranged, only has potential difference by first engaging piece 410 and second engaging piece, 411 profiles of tooth, can by the structure of same pallet 40 with two in the same way or two reverse settings be located in two storage tanks 22 of actuator 20, can use the pallet 40 of single structure form can reach the purpose that micro angle swinging drives or big torsion is exported and can reach whole spanner 10 structures, for the structure that little angle drives, belong to a low-cost design, and need not that little angle drives and when needing the spanner 10 of big torsion output for one, also can give by two pallets 40 of same structural form being provided with as the mode of Fig. 6, can reach two pallets 40 and be simultaneously that engaging piece with same form stretches out and drive division 110 blockings drive, become the structural form of a big torsion driving.
In sum, this case invention spanner that single pallet two fastening ends have the tooth difference that discloses, special design " utilizability with industry " should be unquestionable, in addition, invent the technical characterictic of being exposed in this case, all publications before application, had not also been seen, also be not disclosed use, has the fact of effect enhancement as mentioned above again in addition, hereat, " novelty " of the present invention reaches " progressive " and all meets patent statute, and the whence proposes the application of patent of invention in accordance with the law, request and give examination and grant quasi patent early, the true feeling moral just.
Claims (10)
1. spanner that single pallet two fastening ends have the tooth difference, it comprises: a driving head, this driving head inner radius forms the drive division of a continuous profile of tooth; One actuator is located in this drive division, and this actuator exposes outside this drive division and forms a drive end, and the big footpath body end of this actuator in this drive division is provided with at least two storage tanks; It is characterized in that: also comprise at least pallet with respect to storage tank quantity, this pallet is located in the relative storage tank, and this pallet forms fastening end with respect to the two ends of the drive division of this driving head, two fastening ends are first engaging piece and the second engaging piece setting of relative profile of tooth with respect to this drive division, wherein, first engaging piece of these pallet two fastening ends and second engaging piece have the potential difference less than this drive division one tooth; Pallet in this each storage tank is provided with in the same way with the pallet of same structural form.
2. the spanner that single pallet two fastening ends according to claim 1 have the tooth difference, it is characterized in that, the big footpath body end of this actuator in drive division also is provided with the reversing arrangement of a commutation effect, this reversing arrangement mainly has a reversing piece, these reversing piece central authorities penetrate actuator, and in being provided with at least one elastic component, and a top product to each pallet overhead is set respectively with this elastic component end with respect to the pallet place.
3. the spanner that single pallet two fastening ends according to claim 1 have the tooth difference, it is characterized in that, be provided with a pivot in this storage tank in addition, pallet middle section in this storage tank is passed for this pivot, and this pallet is respectively equipped with first engaging piece and second engaging piece with respect to the fastening end of driving head drive division, this pallet is extended to both sides by pivot center angle is set, this is provided with between the tangent place of fastening end periphery of the extension line of angle both sides and this pallet the position that is provided with for first engaging piece of profile of tooth and second engaging piece, and this first engaging piece and second engaging piece are an asymmetric form mutually, the i.e. setting of this first engaging piece starts from finishing to tooth paddy behind the number tooth with crown, and the then non-position with crown of second engaging piece begins.
4. the spanner that single pallet two fastening ends according to claim 3 have the tooth difference is characterized in that, the setting of this second engaging piece starts from finishing to crown behind the number teeth with tooth paddy.
5. the spanner that single pallet two fastening ends according to claim 1 have the tooth difference, it is characterized in that, the pallet that is provided with in the storage tank of these actuator both sides, pallet in the one storage tank is that first engaging piece stretches out, then the pallet in another storage tank then is that first engaging piece stretches out and the drive division blocking, if the pallet that the pallet in the one storage tank is second engaging piece to be stretched out in another storage tank then stretches out and the drive division blocking with second engaging piece.
6. spanner that single pallet two fastening ends have the tooth difference, it comprises: a driving head, this driving head inner radius forms the drive division of a continuous profile of tooth; One actuator is located in this drive division, and this actuator exposes outside this drive division and forms a drive end, and the big footpath body end of this actuator in this drive division is provided with at least two storage tanks; It is characterized in that: also comprise at least pallet with respect to storage tank quantity, this pallet is located in the relative storage tank, and this pallet forms fastening end with respect to the two ends of the drive division of this driving head, two fastening ends are first engaging piece and the second engaging piece setting of relative profile of tooth with respect to this drive division, wherein, first engaging piece of these pallet two fastening ends and second engaging piece have the potential difference less than this drive division one tooth; Pallet in this each storage tank oppositely is provided with the pallet of same structural form.
7. the spanner that single pallet two fastening ends according to claim 6 have the tooth difference, it is characterized in that, the big footpath body end of this actuator in drive division also is provided with the reversing arrangement of a commutation effect, this reversing arrangement mainly has a reversing piece, these reversing piece central authorities penetrate actuator, and in being provided with at least one elastic component, and a top product to each pallet overhead is set respectively with this elastic component end with respect to the pallet place.
8. the spanner that single pallet two fastening ends according to claim 6 have the tooth difference, it is characterized in that, be provided with a pivot in this storage tank in addition, pallet middle section in this storage tank is passed for this pivot, and this pallet is respectively equipped with first engaging piece and second engaging piece with respect to the fastening end of driving head drive division, this pallet is extended to both sides by pivot center angle is set, this is provided with between the tangent place of fastening end periphery of the extension line of angle both sides and this pallet the position that is provided with for first engaging piece of profile of tooth and second engaging piece, and this first engaging piece and second engaging piece are an asymmetric form mutually, the i.e. setting of this first engaging piece starts from finishing to tooth paddy behind the number tooth with crown, and the then non-position with crown of second engaging piece begins.
9. the spanner that single pallet two fastening ends according to claim 8 have the tooth difference is characterized in that, the setting of this second engaging piece starts from finishing to crown behind the number teeth with tooth paddy.
10. the spanner that single pallet two fastening ends according to claim 6 have the tooth difference, it is characterized in that, the pallet that is provided with in the storage tank of these actuator both sides, pallet in the one storage tank stretches out with first engaging piece, the pallet of another storage tank then is that second engaging piece stretches out and the drive division blocking, becomes the structure that a little angle drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103025560A CN101618532B (en) | 2008-07-04 | 2008-07-04 | Wrench with tooth difference at two clamped ends of single pawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103025560A CN101618532B (en) | 2008-07-04 | 2008-07-04 | Wrench with tooth difference at two clamped ends of single pawl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101618532A CN101618532A (en) | 2010-01-06 |
| CN101618532B true CN101618532B (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103025560A Expired - Fee Related CN101618532B (en) | 2008-07-04 | 2008-07-04 | Wrench with tooth difference at two clamped ends of single pawl |
Country Status (1)
| Country | Link |
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| CN (1) | CN101618532B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI510334B (en) * | 2015-02-13 | 2015-12-01 | Infar Ind Co Ltd | Unidirectional wrench with a braking device having double pawls and a single pawl base with differential tooth |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201805120A (en) * | 2016-08-05 | 2018-02-16 | 史丹利七和國際股份有限公司 | Ratchet wrench |
| CN110774206B (en) * | 2019-09-30 | 2021-02-19 | 上海欧唯斯工具制造有限公司 | Ratchet wrench |
| CN114147655A (en) * | 2022-02-08 | 2022-03-08 | 苏州浪潮智能科技有限公司 | Server and vertical wrench device thereof |
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| US4520697A (en) * | 1982-09-29 | 1985-06-04 | Moetteli John B | Ratchet wrench |
| TW404879B (en) * | 1998-12-31 | 2000-09-11 | Huang Rung Sheng | Ratchet tool having multi-angular variation brake |
| CN2424881Y (en) * | 2000-05-30 | 2001-03-28 | 童益民 | Ratchet wrench with high torque and small angle change |
| US6209422B1 (en) * | 1999-05-17 | 2001-04-03 | K-R Industry Company, Ltd. | Ratchet wrench |
| CN2536355Y (en) * | 2002-02-21 | 2003-02-19 | 邱文明 | Improved circle jacks |
| CN2551407Y (en) * | 2002-05-31 | 2003-05-21 | 谢智庆 | Micromotion structure of ratchet wrench |
| TW200407216A (en) * | 2002-11-11 | 2004-05-16 | Great Lotus Corp | Wrench wedging device with fine angle actuation |
-
2008
- 2008-07-04 CN CN2008103025560A patent/CN101618532B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4520697A (en) * | 1982-09-29 | 1985-06-04 | Moetteli John B | Ratchet wrench |
| TW404879B (en) * | 1998-12-31 | 2000-09-11 | Huang Rung Sheng | Ratchet tool having multi-angular variation brake |
| US6209422B1 (en) * | 1999-05-17 | 2001-04-03 | K-R Industry Company, Ltd. | Ratchet wrench |
| CN2424881Y (en) * | 2000-05-30 | 2001-03-28 | 童益民 | Ratchet wrench with high torque and small angle change |
| CN2536355Y (en) * | 2002-02-21 | 2003-02-19 | 邱文明 | Improved circle jacks |
| CN2551407Y (en) * | 2002-05-31 | 2003-05-21 | 谢智庆 | Micromotion structure of ratchet wrench |
| TW200407216A (en) * | 2002-11-11 | 2004-05-16 | Great Lotus Corp | Wrench wedging device with fine angle actuation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI510334B (en) * | 2015-02-13 | 2015-12-01 | Infar Ind Co Ltd | Unidirectional wrench with a braking device having double pawls and a single pawl base with differential tooth |
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| Publication number | Publication date |
|---|---|
| CN101618532A (en) | 2010-01-06 |
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