CN105729358A - Ratchet wheel wrench structure capable of improving positioning effect of ratchet - Google Patents
Ratchet wheel wrench structure capable of improving positioning effect of ratchet Download PDFInfo
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- CN105729358A CN105729358A CN201410749802.2A CN201410749802A CN105729358A CN 105729358 A CN105729358 A CN 105729358A CN 201410749802 A CN201410749802 A CN 201410749802A CN 105729358 A CN105729358 A CN 105729358A
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- ratchet
- block
- ratchet block
- facing pin
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Abstract
The invention discloses a ratchet wheel wrench structure capable of improving the positioning effect of a ratchet. According to the ratchet wheel wrench structure capable of improving the positioning effect of the ratchet, an approximately rectangular long-plate-shaped abutting pin is arranged in the longitudinal direction of a control piece and longitudinally abuts against the abutting surface of a ratchet block; therefore, the upper portion and the lower portion of the ratchet block can be engaged with a ratchet ring at the same time, the positioning effect and the engagement stability of the ratchet are improved, tooth breakage resulting from stress concentration caused by local engagement is avoided; in addition, the tolerance problem that the parallelism or the perpendicularity is poor due to the fact that a common ratchet wheel wrench pushes a ratchet block through a plurality of elastic positioning assemblies can further be solved.
Description
Technical field
The present invention is relevant with a kind of ratchet wrench structure, particularly relates to a kind of ratchet wrench structure promoting ratchet locating effect.
Background technology
Refer to shown in Fig. 1, its exposure has a kind of known ratchet spanner, this ratchet spanner is pulled on the internal face of storage tank 4 by ratchet block 1 top, and make to be fastened between ratchet block 1 with ratchet ring 2 to engage, but, only it is subject to elastomer 3 to support due to this ratchet block 1 in side, therefore the back of this ratchet block 1 is hanging shape and without any strong point, therefore when this ratchet block 1 stress reaches certain value, its unsettled back is not resisted, therefore any counteracting force will not be produced, this ratchet block 1 will make the ratchet of this ratchet block 1 another end slightly be disengaged from and produce seesaw effect with the strong point of its side for fulcrum makes beat, this seesaw effect will result in this ratchet block 1 only by front minority ratchet engagement stress, and cause the ratchet of this ratchet block 1 easily to cause and burst apart, cause the as easy as rolling off a log damage of this ratchet spanner.
nullIn view of this，A kind of ratchet spanner having double; two rigid support in the streets occurs，Refer to shown in Fig. 2，The ratchet block 1 of this ratchet spanner makes the tip-cambered of ratchet block 1 one end be formed on the internal face of storage tank 4 by the elastic force of elastomer 3，And the another end of this ratchet block 1 is subject to valve part 5 top, top to pull in the end face of recess 6，The two ends making this ratchet block 1 are subject to the top of rigid support all respectively and pull，And make the ratchet of ratchet block 1 is the ratchet being sealed at ratchet ring 2 in time pulling，The each tooth dropped on the stress flank of tooth that then stress will be average，Minority ratchet is concentrated on without such as known ratchet block stress，But all ratchets is all in interlocking pattern，That is each ratchet all stress，The purpose of force dispersion is reached with this，The actual loading ratchet number not only making the ratchet number more conventional ratchet block of engagement really is many，And the occlusion stress of each ratchet is more firm really，Make this ratchet spanner can bear higher torque value.
But, though the ratchet block 1 of this ratchet spanner can pass through supporting of this elastomer 3, and make top, this ratchet block 1 one end be formed on the internal face of storage tank 4, another end then just can be pulled by this top valve part 5 top, form the rigid support at these ratchet block about 1 two ends, only, this elastomer 3 is only resisted against the upside of this ratchet block 1, and make the anxiety of this ratchet block 1 bearing up-down force inequality, therefore when this ratchet block 1 stress reaches certain value, it is not pulled by top and without the downside of any strong point, has the anxiety being disengaged from, and be difficult to really engage with this ratchet ring 2.
Refer to shown in Fig. 3 to Fig. 5, it is another known ratchet spanner, this ratchet spanner utilizes elastomer 3 pushing tow contact ratchet block 1, this ratchet block 1 is made to pass through to be engaged on ratchet ring 2 outside, but, owing to this ratchet block 1 is only supported in side, therefore the another side of this ratchet block 1 is hanging shape and without any strong point, therefore when this ratchet block 1 stress reaches certain value, its this side unsettled is not resisted, without producing any counteracting force, so that this ratchet block 1 makes beat with the strong point of its side for fulcrum, the ratchet making this ratchet block 1 another end is slightly disengaged from and produces seesaw effect, this seesaw effect will result in the ratchet of this ratchet block 1 and supports stress inequality, cause very easily to cause during such ratchet engagement stress and burst apart, and then cause this ratchet spanner to be easily damaged and torsion deficiency.
In view of this, another kind of ratchet spanner in the streets occurs, refer to shown in Fig. 6, this ratchet spanner offers two stopper slots 8 in control piece 7 towards the side of ratchet block 1, and respectively it is equipped with an elastomer 3 in such stopper slot 8, and such stopper slot 8 is arranged above and below in this control piece 7, make such discriminable pushing tow of elastomer 3 in the top position of ratchet block 1 and lower position, with this, the top that can make ratchet block 1 is while simultaneously engaging at ratchet ring 2 with lower section, and when actually used, if there being greasy dirt to hinder and affect its engagement between ratchet block 1 and ratchet ring 2, such elastomer 3 can overcome obstruction, the top making ratchet block 1 is while simultaneously engaging at ratchet ring 2 with lower section, the shortcoming avoiding producing seesaw effect and cause local engagement.
But, each space such as hole, groove that this ratchet spanner is machined, its perpendicularity each other or the depth of parallelism are difficult to control in the tolerance of superprecision, therefore the Precision Machining causing this ratchet spanner are caused high cost, and have a strong impact on speed of production, and cause production capacity to be greatly reduced.If the perpendicularity between machined each hole of this ratchet spanner, groove or the depth of parallelism are in the general margin of tolerance, then by not good with ratchet ring 2 degree of engagement for generation ratchet block 1 or cannot be at a fully engaged situation, so that the problem causing stress to concentrate and occurring collapsing tooth, in view of this, inventor is after observing disadvantages mentioned above, think that known ratchet spanner is real and have the necessity improved again further, and then have the generation of the present invention.
Summary of the invention
It is an object of the invention to provide a kind of ratchet wrench structure promoting ratchet locating effect, it can avoid ratchet block to engage with ratchet ring local and cause collapsing tooth, and overcome known ratchet spanner to utilize the depth of parallelism produced by multiple elastic positioning member pushing tow ratchet block or the not good tolerance issues of perpendicularity, thus promoting ratchet locating effect and Meshing stability.
In order to achieve the above object, the invention provides a kind of ratchet wrench structure promoting ratchet locating effect, it includes a wrench body, this wrench body has a head, this head is longitudinally provided with an accommodating hole and a control flume, and this head laterally offers a spine move groove in this accommodating hole, this accommodating hole is made to communicate with this control flume, and in this accommodating hole, it is pivoted with a ratchet ring, a ratchet block it is provided with in this spine move groove, this ratchet block is then provided with a bearing surface towards the side of this control flume, a control device it is provided with in this control flume, and this control device can optionally control the meshing relation of this ratchet block and this ratchet interannular；
This control device includes a control piece, this control piece longitudinally offers a rectangle stopper slot towards the side of this spine move groove, it is equipped with a Rectangular Spring in this rectangle stopper slot, this Rectangular Spring to should rectangle stopper slot and section generally rectangular-shaped in one, and the pushing and pressing of this Rectangular Spring elasticity have a top-facing pin, one end of this top-facing pin is placed in this rectangle stopper slot, the other end of this top-facing pin is exposed to outside this rectangle stopper slot, this top-facing pin to should rectangle stopper slot and generally in a long plates of rectangular shape shape, and the longitudinal length of this top-facing pin is to should the longitudinally height of ratchet block；
This top-facing pin is longitudinally resisted against the bearing surface of this ratchet block, makes the bearing surface of this ratchet block from top to bottom all can be subject to supporting of this top-facing pin.
Further, wherein, this spine move groove is provided with one first relative resistance face and one second resistance face, and this first resistance face is all extended to the bottom surface of this head with this second resistance face by the end face of this head, this ratchet block is in being correspondingly provided with one first support surface towards this first side resisting face, this first support surface is made optionally to fit with this first resistance face close-fitting, and this ratchet block is in being correspondingly provided with one second support surface towards this second side resisting face, this second support surface is made optionally to fit with this second resistance face close-fitting.
Further, wherein, the bearing surface of this ratchet block is an indent arcuation, and is longitudinally convexly equipped with a flange in the middle of this bearing surface.
Further, wherein, the upper end of this control piece is provided with a switch piece, and this switch piece is exposed to outside this control flume.
Further, wherein, this top-facing pin is to should the side of bearing surface be a convex arc shaped.
The ratchet wrench structure promoting ratchet locating effect provided by the present invention, the abutting part of this ratchet block is longitudinally supported through this top-facing pin, not only can increase the lifting surface area supported, make this ratchet block can be while simultaneously engaging at this ratchet ring up and down, local engagement is avoided to cause stress to concentrate so that collapsing tooth, and promote ratchet locating effect and Meshing stability further, and known ratchet spanner can also be overcome to utilize the depth of parallelism produced by multiple elastic positioning member pushing tow ratchet block or the not good tolerance issues of perpendicularity.
Accompanying drawing explanation
The drawing in side sectional elevation of the known ratchet spanner of Fig. 1 first.
The drawing in side sectional elevation of the known ratchet spanner of Fig. 2 second.
The profilograph of the known ratchet spanner of Fig. 3 the 3rd.
The drawing in side sectional elevation of the known ratchet spanner of Fig. 4 the 3rd.
The use schematic diagram of the known ratchet spanner of Fig. 5 the 3rd, to show that ratchet is by the state after spring and pin pushing tow.
The profilograph of the known ratchet spanner of Fig. 6 the 4th.
Fig. 7 axonometric chart of the present invention.
Fig. 8 exploded view of the present invention.
Fig. 9 profilograph of the present invention.
Figure 10 partial enlarged drawing of the present invention.
The drawing in side sectional elevation of Figure 11 present invention.
Figure 12 present invention uses schematic diagram, shows that ratchet block engages the state used with ratchet ring with cross section.
Figure 13 present invention uses schematic diagram, shows that ratchet block is by the state after spring and top-facing pin pushing tow with vertical section.
Figure 14 present invention uses schematic diagram, shows that ratchet block is by the state after spring and top-facing pin pushing tow with cross section.
Figure 15 present invention uses schematic diagram, the state after commutating with display control unit.
In figure, 1 ratchet block 2 ratchet ring
3 elastomer 4 storage tanks
5 top valve part 6 recesses
7 control piece 8 stopper slots
10 wrench body
11 handle body 12 heads
121 end face 122 bottom surfaces
13 accommodating hole 14 control flumes
15 spine move grooves 151 first resist face
152 second resist face
20 ratchet rings
21 drive tooth 22 brake component
30 ratchet blocks
31 ratchet 32 abutting parts
321 first abutting part 322 second abutting parts
33 flanges
341 first support surface, support surfaces 342 second
40 control device
41 control piece 42 connecting portions
43 rectangle stopper slot 44 Rectangular Springs
45 top-facing pin 46 switch pieces
50 base plates.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Referring to shown in Fig. 7 to Figure 11, its exposure has a kind of ratchet wrench structure promoting ratchet locating effect, and this ratchet wrench structure includes:
nullOne wrench body 10，It has a handle body 11，One end of this handle body 11 has a head 12，This head 12 has relative end face 121 and a bottom surface 122，And this head 12 is provided with an accommodating hole 13 running through this end face 121 and this bottom surface 122，This accommodating hole 13 is generally rounded，And the central axis of this accommodating hole 13 is in this end face 121 and this bottom surface 122，And the end face 121 of this head 12 is adjacent to this handle body 11 place and offers a control flume 14，This control flume 14 is generally rounded，And the central shaft of this control flume 14 is parallel to the central shaft of this accommodating hole 13，This head 12 more offers a spine move groove 15 interlinked with this control flume 14 in this accommodating hole 13 near this handle body 11 place，This spine move groove 15 is provided with one first relative resistance face 151 and one second resistance face 152，And this first resistance face 151 is all extended to the bottom surface 122 of this head 12 with this second resistance face 152 by the end face 121 of this head 12，And make this spine move groove 15 by this accommodating hole 13 towards this control flume 14 convergent.
One ratchet ring 20, it is hubbed at the accommodating hole 13 of this head 12, and the outside of this ratchet ring 20 is equipped with a plurality of driving tooth 21, and the central authorities of this ratchet ring 20 are provided with a brake component 22, this brake component 22 is available for corresponding switching one working substance, in the present invention, this brake component 22 is the square toes protuberance selecting corresponding sleeve.
One ratchet block 30, it is located in this spine move groove 15, and this ratchet block 30 can optionally be engaged in this ratchet ring 20.Wherein, this ratchet block 30 is in being provided with a plurality of ratchet 31 towards the side of this accommodating hole 13, and such ratchet 31 can be engaged in the driving tooth 21 of this ratchet ring 20, this ratchet block 30 another is then provided with a bearing surface 32 towards the side of this control flume 14, this bearing surface 32 is in an indent arcuation, and the middle of this bearing surface 32 is to the central shaft of control flume 14 being longitudinally convexly equipped with a flange 33, make this bearing surface 32 by this flange 33, be formed with one first bearing surface 321 and one second bearing surface 322 respectively at its two side.This ratchet block 30 is more correspondingly provided with one first support surface 341 in the side towards this first resistance face 151, this first support surface 341 is made optionally to fit with this first resistance face 151 close-fitting, and this ratchet block 30 is more correspondingly provided with one second support surface 342 in the side towards this second resistance face 152, this second support surface 342 is made optionally to fit with this second resistance face 152 close-fitting.
One controls device 40, and it is located at this control flume 14, and this control device 40 can optionally control the meshing relation of this ratchet block 30 and ratchet ring 20.nullThis control device 40 includes a control piece 41，This control piece 41 is located in control flume 14，And this control piece 41 has a junction 42，This connecting portion 42 protrudes from this control flume 14，And be exposed in this spine move groove 15，Make between this control piece 41 with this wrench body 10, to produce relative pivot pendulum relation，This connecting portion 42 longitudinally offers a rectangle stopper slot 43 towards the side of this ratchet block 30，And this rectangle stopper slot 43 is to should ratchet block 30，Central shaft along this control flume 14 is longitudinally located at this connecting portion 42，And this rectangle stopper slot 43 is equipped with a Rectangular Spring 44，This Rectangular Spring 44 to should rectangle stopper slot 43 and section generally rectangular-shaped in one，And the elastic pushing and pressing further of this Rectangular Spring 44 have a top-facing pin 45，The longitudinal length of this top-facing pin 45 is generally corresponding to the longitudinally height of this ratchet block 30，This top-facing pin 45 to should rectangle stopper slot 43 and generally in a long plates of rectangular shape shape，And one end of this top-facing pin 45 is placed in this rectangle stopper slot 43，And contact with this Rectangular Spring 44，And the another end of this top-facing pin 45 protrudes from this rectangle stopper slot 43，And the bearing surface 32 of this ratchet block 30 is longitudinally supported along the central shaft of this control flume 14，And this top-facing pin 45 is to should the side of bearing surface 32 be a convex arc shaped，Another this control piece 41 this connecting portion 42 relative is provided with a switch piece 46，And this switch piece 46 is exposed to the end face 121 of this head 12.
One base plate 50, it is locked in the bottom surface 122 of this head 12, and correspondence is located on the outside of this ratchet ring 20, and can is limited in by this ratchet ring 20 in this accommodating hole 13, and is limited in this spine move groove 15 by this ratchet block 30.
nullShown in Figure 12，And please refer to shown in Fig. 8 and Fig. 9，When user is when carrying out the operation screwing working substance，The bearing surface 32 of this ratchet block 30 longitudinally supported by this ratchet spanner by this top-facing pin 45，This ratchet block 30 is made to engage with this ratchet ring 20，And rotate relative to this wrench body 10，And make the first support surface 341 of this ratchet block 30 support this first resistance face 151，Now due to this first support surface 341 and this first resistance face 151 close-fitting laminating，Therefore a large-area rigid support face can be formed，The bearing surface 32 of this ratchet block 30 is so further longitudinally supported by this top-facing pin 45，Make this top-facing pin 45 large-area force can support this ratchet block 30，To make this top-facing pin 45 can the top position of simultaneously this ratchet block 30 of pushing tow、Centre position and lower position，This ratchet block 30 is made to tightly engage this ratchet ring 20 completely in pulling Shi Naike，And allow mean forced drop on each tooth on the stress flank of tooth，And make the occlusion mean forced of each tooth more firm really，De-tooth is avoided to cause the situation of ratchet unbalance stress to occur，And make this ratchet spanner not only can promote ratchet locating effect and Meshing stability，And higher torque value can be born.
In addition, owing to this top-facing pin 45 can the simultaneously top position of this ratchet block 30 of pushing tow, centre position and lower position, therefore, if having greasy dirt between this ratchet block 30 and this ratchet ring 20 in time using, large area longitudinally supports the top-facing pin 45 of this ratchet block 30 can overcome obstruction, the top of this ratchet block 30, centre and lower section is made to be while simultaneously engaging at this ratchet ring 20, without the shortcoming causing local engagement, and the function reaching to engage at a high speed between this ratchet block 30 with this ratchet ring 20 can also be made, have and improve Meshing stability and reduce the effect collapsing tooth.
Shown in Figure 13 and Figure 14, when user reverses this wrench body 10, owing to this ratchet ring 20 pushes the strength of this ratchet block 30 open more than the elastic strength pushing against this top-facing pin 45 this ratchet block 30 of pushing tow of this Rectangular Spring 44, therefore the action that this ratchet block 30 will be caused to create retrogressing, make working substance and this ratchet ring 20 that this wrench body 10 will not be followed to reverse.
Shown in Figure 15, and please refer to shown in Fig. 8, when user is intended to this wrench body 10 of switch operation, only need to stir this switch piece 46, this top-facing pin 45 is made to be turned to the second abutting part 322 supporting this ratchet block 30 by the first abutting part 321 supporting this ratchet block 30, with this, this ratchet block 30 can be pushed against and form a rigid support face in this second resistance face 152, and be available for users to this wrench body 10 of switch operation.
Owing to this ratchet block 30 is provided with this flange 33 between this first bearing surface 321 and this second bearing surface 322, therefore can make this top-facing pin 45 in time supporting this ratchet block 30, form spacing effect, this top-facing pin 45 is made clearly to select to support this first bearing surface 321 or this second bearing surface 322, thus promoting this top-facing pin 45 to push against the effect of this ratchet block 30, make to obtain between this ratchet block 30 with this ratchet ring 20 more preferably engage effect.
It is worth mentioning that, the abutting part 32 of this ratchet block 30 only longitudinally supported by this ratchet spanner by single top-facing pin 45, make this ratchet block about 30 engage with this ratchet ring 20 simultaneously, therefore overcome known ratchet spanner to utilize the depth of parallelism produced by multiple elastic positioning member pushing tow ratchet block or the not good tolerance issues of perpendicularity with this, and reduce production cost further, improve speed of production and production capacity, reach the enhancement of economic benefit.
Again inventive feature and attainable expection effect thereof are presented below:
The present invention can promote the ratchet wrench structure of ratchet locating effect, the abutting part of this ratchet block is longitudinally supported through this top-facing pin, not only can increase the lifting surface area supported, make this ratchet block can be while simultaneously engaging at this ratchet ring up and down, local engagement is avoided to cause stress to concentrate so that collapsing tooth, and overcome the greasy dirt of ratchet block and ratchet interannular to hinder further, promote ratchet locating effect and Meshing stability, and known ratchet spanner can also be overcome to utilize the depth of parallelism produced by multiple elastic positioning member pushing tow ratchet block or the not good tolerance issues of perpendicularity.
Embodiment described above is only the preferred embodiment lifted for absolutely proving the present invention, and protection scope of the present invention is not limited to this.Equivalent replacement that those skilled in the art make on basis of the present invention or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (5)
1. the ratchet wrench structure that can promote ratchet locating effect, it includes a wrench body, this wrench body has a head, this head is longitudinally provided with an accommodating hole and a control flume, and this head laterally offers a spine move groove in this accommodating hole, this accommodating hole is made to communicate with this control flume, and in this accommodating hole, it is pivoted with a ratchet ring, a ratchet block it is provided with in this spine move groove, this ratchet block is then provided with a bearing surface towards the side of this control flume, a control device it is provided with in this control flume, and this control device can optionally control the meshing relation of this ratchet block and this ratchet interannular, it is characterized in that:
This control device includes a control piece, this control piece longitudinally offers a rectangle stopper slot towards the side of this spine move groove, it is equipped with a Rectangular Spring in this rectangle stopper slot, this Rectangular Spring to should rectangle stopper slot and section generally rectangular-shaped in one, and the pushing and pressing of this Rectangular Spring elasticity have a top-facing pin, one end of this top-facing pin is placed in this rectangle stopper slot, the other end of this top-facing pin is exposed to outside this rectangle stopper slot, this top-facing pin to should rectangle stopper slot and generally in a long plates of rectangular shape shape, and the longitudinal length of this top-facing pin is to should the longitudinally height of ratchet block；
This top-facing pin is longitudinally resisted against the bearing surface of this ratchet block, makes the bearing surface of this ratchet block from top to bottom all can be subject to supporting of this top-facing pin.
2. according to the ratchet wrench structure of the promoted ratchet locating effect described in claim 1, it is characterized in that, wherein, this spine move groove is provided with one first relative resistance face and one second resistance face, and this first resistance face is all extended to the bottom surface of this head with this second resistance face by the end face of this head, this ratchet block is in being correspondingly provided with one first support surface towards this first side resisting face, this first support surface is made optionally to fit with this first resistance face close-fitting, and this ratchet block is in being correspondingly provided with one second support surface towards this second side resisting face, this second support surface is made optionally to fit with this second resistance face close-fitting.
3. according to the ratchet wrench structure of the promoted ratchet locating effect described in claim 1, it is characterised in that wherein, the bearing surface of this ratchet block is an indent arcuation, and longitudinally it is convexly equipped with a flange in the middle of this bearing surface.
4. according to the ratchet wrench structure of the promoted ratchet locating effect described in claim 1, it is characterised in that wherein, the upper end of this control piece is provided with a switch piece, and this switch piece is exposed to outside this control flume.
5., according to the ratchet wrench structure of promoted ratchet locating effect described in claim 1, it is characterised in that wherein, this top-facing pin is to should the side of bearing surface be a convex arc shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749802.2A CN105729358A (en) | 2014-12-10 | 2014-12-10 | Ratchet wheel wrench structure capable of improving positioning effect of ratchet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749802.2A CN105729358A (en) | 2014-12-10 | 2014-12-10 | Ratchet wheel wrench structure capable of improving positioning effect of ratchet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105729358A true CN105729358A (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410749802.2A Pending CN105729358A (en) | 2014-12-10 | 2014-12-10 | Ratchet wheel wrench structure capable of improving positioning effect of ratchet |
Country Status (1)
| Country | Link |
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| CN (1) | CN105729358A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202299A (en) * | 2016-12-19 | 2018-06-26 | 陈家佑 | High torque-force ratchet spanner |
| CN108568771A (en) * | 2017-03-14 | 2018-09-25 | 陈家佑 | Reversing ratchet wrench structure-improved |
| CN110340833A (en) * | 2018-04-04 | 2019-10-18 | 陈怡富 | The striking gear of ratchet spanner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892384Y (en) * | 2006-01-24 | 2007-04-25 | 史丹利七和国际股份有限公司 | Bidirectional ratchet spanner |
| CN101774163A (en) * | 2009-01-12 | 2010-07-14 | 胡厚飞 | Thorn wrench for preventing tooth breakup |
| TW201200304A (en) * | 2010-04-30 | 2012-01-01 | Hou-Fei Hu | Reciprocally switchable open spanner |
| CN103286717A (en) * | 2012-03-02 | 2013-09-11 | 香港商艾沛克斯工具有限公司台湾分公司 | Reversing ratchet wrench |
-
2014
- 2014-12-10 CN CN201410749802.2A patent/CN105729358A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892384Y (en) * | 2006-01-24 | 2007-04-25 | 史丹利七和国际股份有限公司 | Bidirectional ratchet spanner |
| CN101774163A (en) * | 2009-01-12 | 2010-07-14 | 胡厚飞 | Thorn wrench for preventing tooth breakup |
| TW201200304A (en) * | 2010-04-30 | 2012-01-01 | Hou-Fei Hu | Reciprocally switchable open spanner |
| CN103286717A (en) * | 2012-03-02 | 2013-09-11 | 香港商艾沛克斯工具有限公司台湾分公司 | Reversing ratchet wrench |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202299A (en) * | 2016-12-19 | 2018-06-26 | 陈家佑 | High torque-force ratchet spanner |
| CN108568771A (en) * | 2017-03-14 | 2018-09-25 | 陈家佑 | Reversing ratchet wrench structure-improved |
| CN110340833A (en) * | 2018-04-04 | 2019-10-18 | 陈怡富 | The striking gear of ratchet spanner |
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Application publication date: 20160706 |