CN104842304A - Braking structure of ratchet wrench - Google Patents
Braking structure of ratchet wrench Download PDFInfo
- Publication number
- CN104842304A CN104842304A CN201410050381.4A CN201410050381A CN104842304A CN 104842304 A CN104842304 A CN 104842304A CN 201410050381 A CN201410050381 A CN 201410050381A CN 104842304 A CN104842304 A CN 104842304A
- Authority
- CN
- China
- Prior art keywords
- rear end
- ratchet spanner
- holding part
- end support
- brake structure
- 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
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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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/466—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in an axial direction
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a braking structure of a ratchet wrench. The braking structure of the ratchet wrench comprises a ratchet wrench, a ratchet drive member, a locking and dragging member and a change over switch. The ratchet wrench comprises a head portion having a first containing portion, a second containing portion and a third containing portion, and the third containing portion is provided with a rear end wall. The ratchet drive member is located in the first containing portion, and the ratchet drive member has an outside tooth portion. The locking and dragging member is arranged in the second containing portion, the front end face of the locking and dragging member is provided with a tooth portion, and the rear end face is provided with an against groove. The change over switch comprises a drive portion, the drive portion is provided with a containing hole and disposed in the third containing portion. An against spring penetrates the containing hole, an against portion at the front end of the against spring presses against the against groove, an against portion at the rear end presses against the rear end wall of the third containing portion. By adopting the simple structure, the ratchet wrench can be controlled, and operation directions can be changed and rotated, good convenience and economic benefits in manufacture and assemble can be achieved.
Description
Technical field
The present invention relates to a kind of ratchet wrench structure, refer to a kind of facility assembling especially and there is the ratchet spanner brake structure manufacturing economic benefit.
Background technology
A kind of hand-held tool that ratchet spanner is conventional, existing ratchet wrench structure is as the 1st, shown in 2 figure, this ratchet spanner 90 includes a head 901 and shank 902, this head 901 has one first holding part 903, this first holding part 903 this shank 902 place contiguous is provided with second holding part 905 be connected, this head 901 rear end is also provided with this second holding part 905 of the vertical connection of one the 3rd holding part the 906, three holding part 906, and the rear end of the 3rd holding part 906 is provided with an accommodating hole 907; One spine move part 91, it has the teeth portion 911 in outside and the turn position 912 of inner side, and this spine move part 91 is placed in this first holding part 903 after putting a C shape snap lock firmware 92; One is located in the second holding part 905 in the clamping piece 93 of first quarter moon bending, and this clamping piece 93 is provided with a teeth portion 931 of front end (relatively this first holding part 903) and a long recess 932 of rear end; One reversing switch 94 includes the pulling piece 941 of top and the drive portion 942 of below, wherein this drive portion 942 is arranged in the 3rd holding part 906, this front end, drive portion 942 is provided with an accommodating hole 943, this accommodating hole 943 is arranged in pre-large post-small company hole, and this rear end, drive portion 942 is provided with one first locating hole 944 and one second locating hole 945; The accommodating hole 943 of this reversing switch 94 is located at by one first spring 95, and cap 96 is supported to being provided with one in this first spring 95 front end, and this abuts forward the long recess 932 in this clamping piece 93 to cap 96; This accommodating hole 907 is located at by one second spring 97, and this second spring 97 front end is to being provided with a steel ball 98, and this steel ball 98 abuts forward the first locating hole 944 or one second locating hole 945 in this reversing switch 94 (drive portion 942).During this ratchet spanner 90 switch operation, this reversing switch 94 of switch, and make this clamping piece 93 one interlock and change position, to control, to change the rotation process direction of this spine move part 91 in this second holding part 905; First locating hole 944 of this reversing switch 94 rear end or one second locating hole 945 then provide the elasticity of this steel ball 98 to support location after rotation, and relevant technology is as No. 413113rd, Taiwan Patent.
Though aforementioned the prior art can reach control by means of the rotation of this reversing switch 94 switches, change the rotation process direction of this spine move part 91, so, its disappearance is still had to exist, such as: the formation of this ratchet spanner 90 need arrange the first spring 95 and support cap 96 in the front end of this reversing switch 94, in order to this clamping piece 93 of interlock, and the second spring 97 and steel ball 98 are set in the rear end of this reversing switch 94, location is supported in order to produce, because its composition component is many, comparatively loaded down with trivial details inconvenience on assembly operation will be caused and time-consuming, aobvious nonideal Construction designing.Moreover the accommodating hole 943 of this reversing switch 94 is arranged in pre-large post-small buried via hole, and is unfavorable for simple and easy manufacture, also has the necessity improved in the lump; Therefore, it manufactures the disappearance on assembling, the important topic that should be industry or have intelligence taxi should solve, overcome how to solve existing ratchet spanner.
Therefore, the present inventor does not attain the desirable fact in view of in the shortcoming in existing ratchet spanner manufacture assembling and structural design thereof, namely inventor sets about researching and developing its solution, wish to develop a kind of ratchet spanner brake structure having more manufacture assembling convenience and economy, with service society masses and the development promoting this industry, satisfy the design when many and have generation of the present invention.
Summary of the invention
Object of the present invention is providing a kind of ratchet spanner brake structure, its can rely on easy form arrange and have control that ratchet spanner uses, change rotation process direction, and then reach and manufacture the upper splendid convenience of assembling and economic benefit.
Another object of the present invention is providing a kind of ratchet spanner brake structure, it can make ratchet spanner convert in the operation of rotation construction direction, have and preferably rotate, locate one interlock and operation texture, and then actively promote the competitiveness person of its practical fastness and product.
For achieving the above object, the technical solution used in the present invention is:
A kind of ratchet spanner brake structure, it is characterized in that, it comprises:
One ratchet spanner, include a head and shank, this head has one first holding part, this position, the first holding part rear end is provided with second holding part be connected, this position, head rear end is provided with one the 3rd holding part, this second holding part of the vertical connection of 3rd holding part, the 3rd holding part is provided with an aft bulkhead;
One spine move part, arranges and is positioned in this first holding part, and this spine move part has the teeth portion in outside;
One clamping piece, is located in this second holding part, and this clamping piece is provided with at least one resistance groove on a teeth portion of front end face and rear end face;
One reversing switch, it at least includes a drive portion, and this drive portion is arranged in the 3rd holding part, and this drive portion front end face is provided with an accommodating hole, and this accommodating hole is this drive portion through axially;
One supports spring, and it is arranged in this accommodating hole, and this supports the rear end support that spring includes the front end support of front end, the bullet portion, stage casing at position, stage casing and rear end, and this front end support abuts in this resistance groove, and this rear end support abuts on this aft bulkhead.
Wherein: this resistance groove has two arc ends, be that the first resistance end slot and second resists end slot respectively.
Wherein: this reversing switch includes the pulling piece be located at above this drive portion, this pulling piece is a convex handle relative to this drive portion, and the other end of this drive portion this pulling piece relative is provided with a locating dowel.
Wherein: the distribution comparatively dense of the number of coils of this front end support and this rear end support, the distribution of the number of coils in this bullet portion, stage casing is more estranged.
Wherein: the position, termination of this front end support, this rear end support is respectively equipped with an arc contracting and supports head.
Wherein: the back-office portion of this front end support is positioned at this accommodating hole.
Wherein: the local, front end of this rear end support is positioned at this accommodating hole.
Wherein: this rear end support is supported and is connected with a steel ball.
Wherein: this distribution comparatively dense supporting this front end support of spring and the number of coils of rear end support refers to that two adjacent turns are in closely reclining.
Wherein: this more estranged referring between two adjacent turns of distribution supporting the number of coils in the bullet portion, stage casing of spring is gap arrangement, and the distance in this gap is the wire diameter having half spring wire at least.
Wherein: this front end support is supported and is connected with one to cap.
Wherein: cap should be supported there is the wide larger ogive of the wide less connecting portion in footpath, rear end and footpath, front end.
Wherein: should support the cylinder that cap is a hollow, and should be closed to cap one end, the other end be in open shape.
Wherein: this aft bulkhead is the position away from this first holding part on the 3rd holding part.
Wherein: this aft bulkhead includes at least one arrival slot further.
Wherein: this arrival slot includes one first arrival slot and the second arrival slot, this first arrival slot and this second arrival slot are positioned at the two side ends of this arrival slot.
Compared with prior art, the beneficial effect that the present invention has is: ratchet spanner brake structure of the present invention relies on aforementioned formation, can rely on easy form arrange and have control that ratchet spanner uses, change rotation process direction, and then reach and manufacture the upper splendid convenience of assembling and economic benefit; And simultaneously, in the operation that the present invention can make ratchet spanner convert to rotate construction direction, have and preferably rotate, locate one interlock and operation texture, and then the competitiveness of actively its practical fastness of lifting and product.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of existing ratchet wrench structure;
Fig. 2 is the cross-sectional schematic of existing ratchet wrench structure;
Schematic perspective view when Fig. 3 is the invention process;
Fig. 4, Fig. 4 A is decomposing schematic representation and the close-up schematic view thereof of first embodiment of the invention respectively;
Fig. 5 is the cross-sectional schematic of first embodiment of the invention;
Fig. 6, Fig. 6 A is cross-sectional schematic and the partial enlargement decomposing schematic representation thereof of second embodiment of the invention respectively;
Fig. 7 is the cross-sectional schematic of second embodiment of the invention;
Fig. 8, Fig. 8 A is cross-sectional schematic and the partial enlargement decomposing schematic representation thereof of third embodiment of the invention respectively;
Fig. 9, Fig. 9 A, Fig. 9 B is cross-sectional schematic, the partial enlargement decomposing schematic representation of third embodiment of the invention respectively and supports another planform schematic diagram of cap.
Description of reference numerals: ratchet spanner 10; Head 11; First holding part 110; Shank 12; Second holding part 13; 3rd holding part 14; Aft bulkhead 140; First arrival slot 141; Second arrival slot 142; Spine move part 20; Teeth portion 21; Turn position 22; Operating space 23; Clamping piece 30; Teeth portion 31; Resist groove 32; First resists end slot 321; Second resists end slot 322; Reversing switch 40; Pulling piece 41; Drive portion 42; Accommodating hole 421; Locating dowel 422; Support spring 50; Front end support 51; Arc contracting supports 511; Bullet portion, stage casing 52; Connecting portion 521; Rear end support 53; Arc contracting supports 531; Steel ball 54; To cap 55,55`; Ogive 552.
Detailed description of the invention
Refer to Fig. 3, Fig. 4, Fig. 4 A and Fig. 5, it is ratchet spanner brake structure first embodiment of the present invention, this ratchet spanner 10 includes: a head 11 and shank 12, this head 11 has one first holding part 110, this first holding part 110 this shank 12 place (position, rear end) contiguous is provided with second holding part 13 be connected, this head 11 rear end is provided with one the 3rd holding part 14, this the second holding part of the vertical connection of 3rd holding part 14 13 (herein so-called vertical be vertical with shank bearing of trend), and in being provided with an aft bulkhead 140 away from this first holding part 110 place on the 3rd holding part 14, in other detailed description of the invention, 3rd holding part 14 can be positioned on this shank 12, be form depending on the shape of this head 11.One spine move part 20 is the hollow ring gear bodies in tool operating space 23, and it has the teeth portion 21 in outside and the turn position 22 of inner side, and this spine move part 20 arranges and is positioned in the first holding part 110 of this head 11, and makes this teeth portion 21 this second holding part 13 relatively adjacent.
Moreover, one clamping piece 30, it is the block of first quarter moon bending and is located in the second holding part 13, this clamping piece 30 is provided with one on a teeth portion 31 of front end face (relatively this first holding part 110) and rear end face and resists groove 32, the teeth portion 21 phase toe joint of this teeth portion 31 and this spine move part 20, this resistance groove 32 is in the setting of relative 3rd holding part 14, and the first resistance end slot 321, second that this resistance groove 32 has two arc ends resists end slot 322.
One reversing switch 40, it includes the pulling piece 41 of top and the drive portion 42 of below, and wherein, this drive portion 42 can be arranged in the 3rd holding part 14 in a column, and this pulling piece 41 this drive portion 42 relative is in a convex handle, the switch in order to this reversing switch 40 convenient is moved, this drive portion 42 front end face is provided with an accommodating hole 421, this accommodating hole 421 is this drive portion 42 (what is called is axial is herein parallel with shank bearing of trend) through axially, the i.e. resistance groove 32 of this accommodating hole 421 front end this clamping piece 30 relative, and the aft bulkhead 140 of relative 3rd holding part 14 in rear end, this drive portion 42 (reversing switch 40) the relatively other end of this pulling piece 41 is provided with a locating dowel 422, this locating dowel 422 is located at the post groove interior (not shown) of the 3rd holding part 14 opposite end, in order to guarantee the stability of this drive portion 42 (reversing switch 40) rotation process.
One supports spring 50, it is arranged in the accommodating hole 421 of this reversing switch 40 (drive portion 42), this supports the front end support 51 that spring 50 includes front end, the rear end support 53 of rear end and this front end support 51, the bullet portion, stage casing 52 at (position, stage casing) between rear end support 53, wherein, this front end support 51 and the springs layout of rear end support 53 in comparatively dense, intensity is resisted in order to increase it, and this bullet portion, stage casing 52 is in more estranged springs layout, in order to provide its stretching elasticity, in suitable detailed description of the invention, this front end support 51, the position, termination of rear end support 53 is that an arc contracting supports 511, the setting of 531 is supported in arc contracting, resist in order to facilitate its displacement, and in preferably detailed description of the invention, when this support spring 50 be placed in this accommodating hole 421 time, the local, rear end of this front end support 51 is still positioned at this accommodating hole 421, to increase the stability of its start, the aforementioned front end support 51 that this supports spring 50 abuts forward the resistance groove 32 (as first resists end slot 321 or the second resistance end slot 322) in this clamping piece 30, and this rear end support 53 supporting spring 50 abuts on the aft bulkhead 140 of the 3rd holding part 14 (as shown in Figure 5) backward, and in preferably detailed description of the invention, when this support spring 50 be placed in this accommodating hole 421 time, the local, front end of this rear end support 53 is still positioned at this accommodating hole 421, to increase the stability of its start.
Aforementioned formation, in preferably detailed description of the invention, this supports this front end support 51 of spring 50 and the springs layout of rear end support 53 in comparatively dense is that adjacent two turns are in closely reclining, and this bullet portion, stage casing 52 is in gap arrangement between adjacent two turns in more estranged springs layout, the distance in this gap is the wire diameter having half spring wire at least.
When this ratchet spanner 10 carries out the switch operation in turn direction, that this pulling piece 41 of switch makes this reversing switch 40 (drive portion 42) swing offset, and make to support spring 50 also swing offset thereupon in this reversing switch 40, because this front end support 51 supporting spring 50 is butted on the resistance groove 32 of this clamping piece 30, therefore this front end support 51 will in this first resistance end slot 321, second resists end slot 322 displacement starts, and select according to direction of rotation and finally resist in this first resistance end slot 321 or the second resistance end slot 322, this clamping piece 30 of interlock is in the lump incited somebody to action in the displacement start of this front end support 51, change by means of this clamping piece 30 position decides the state in its elasticity beat space, to control, select the rotation process direction of this spine move part 20, similarly, because this rear end support 53 supporting spring 50 is butted on the aft bulkhead 140 of the 3rd holding part 14, therefore the switch along with this reversing switch 40 in this aft bulkhead 140 top offset start, is supported location in order to provide this elasticity supporting spring 50 rear end by this rear end support 53.
By aforementioned formation, due to the design of accommodating hole 421 in this drive portion 42 through of this reversing switch 40, and this to support spring 50 are front end supports 51 in comparatively dense, rear end support 53 and the combination of more estranged bullet portion 52, stage casing are arranged, therefore the manufacture of this its accommodating hole 421 of reversing switch 40 is quite simple and easy, and only need one to support spring 50 can to carry out elasticity and support start, and without the need to needing more spring as prior art and supporting cap, the components such as steel ball, not only saving member cost, more can provide simpler and easy, assembling operation fast, manufacture for ratchet spanner 10 can reach splendid economic benefit.And this supports spring 50 one interlock thereupon, the blocking location of this rotation transposition and rear end of supporting spring 50 front end all has one interlock and preferably operates texture, also can greatly promote for its service life and practicality.
Refer to Fig. 6, Fig. 6 A and Fig. 7, it is ratchet spanner brake structure second embodiment of the present invention, it is based on shift design in addition on the architecture basics of the first embodiment, and its difference is: the aft bulkhead 140 of the 3rd holding part 14 is provided with one first arrival slot 141, second arrival slot 142 be separated, and this first arrival slot 141 and the second arrival slot 142 also can be merged into the arrival slot in a tool swing space, namely this arrival slot includes the first arrival slot 141 and the second arrival slot 142, and makes this first arrival slot 141 and the second arrival slot 142 be positioned at two side ends or the appropriate location of this arrival slot.And this arrival slot comprises the first arrival slot 141 and the second arrival slot 142 can be implemented as two arc ends formations of this resistance groove 32 (namely first resisting end slot 321, second resistance end slot 322).Similarly, this rear end support 53 supporting spring 50 is butted on this first arrival slot 141 or the second arrival slot 142, therefore this rear end support 53 by the switch along with this reversing switch 40 in 142 the displacement starts of this first arrival slot 141, second arrival slot, and select according to direction of rotation and finally resist in this first arrival slot 141 or the second arrival slot 142, support location in order to provide this elasticity supporting spring 50 rear end.
Refer to Fig. 8, Fig. 8 A, it is ratchet spanner brake structure the 3rd embodiment of the present invention, it is based on shift design in addition on the architecture basics of the first or second embodiment, and its difference is: this rear end support 53 supporting spring 50 is supported and is connected with a steel ball 54, in order to replace the setting that the contracting of this arc in the first or second embodiment supports 531, this steel ball 54 finally resists in this first arrival slot 141 or the second arrival slot 142 by supporting the swing offset of spring 50 along with this, supports location in order to provide this elasticity supporting spring 50 rear end.
Refer to Fig. 9, Fig. 9 A, Fig. 9 B, it is ratchet spanner brake structure the 4th embodiment of the present invention, it is based on shift design in addition on the architecture basics of the first or second embodiment, and its difference is: this front end support 51 supporting spring 50 is supported and is connected with one to cap 55, to cap 55, there is the wide larger ogive 552 of the wide less connecting portion 521 in footpath, rear end and footpath, front end in this, this connecting portion 521 is connected to this front end support 51, in order to replace the setting that the contracting of this arc in the first embodiment supports 511; Separately, also can be another shape to cap 55`, as shown in Figure 8 B, it is the cylinder of a hollow, and should support cap 55` one end is closed, and the other end is in open shape, and during use, this maybe should can be supported cap 55` to cap 55 is sheathed in this front end support 51; Thus, should support cap 55 (55`) finally resists in this first resistance end slot 321 or the second resistance end slot 322 by supporting the swing offset of spring 50 along with this, the displacement start should supporting cap 55 (55`) will this clamping piece 30 of interlock in the lump, by means of the change of this clamping piece 30 position to control, to select the rotation process direction of this spine move part 20.
Certainly, if the present invention is arranged at the front and back ends that this supports spring support cap, steel ball, also can reach it and simplify number of springs and there is the convenient benefit manufacturing, assemble.
Therefore, ratchet spanner brake structure of the present invention, by means of aforementioned formation, can have the control in ratchet spanner use, change rotation process direction by means of forming setting easily, and then reaches manufacture assembling above splendid convenience and economic benefit; And simultaneously, in the operation that the present invention can make ratchet spanner convert to rotate construction direction, have and preferably rotate, locate one interlock and operation texture, and then the competitiveness of actively its practical fastness of lifting and product.
More than illustrate just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection scope of the present invention.
Claims (16)
1. a ratchet spanner brake structure, is characterized in that, it comprises:
One ratchet spanner, include a head and shank, this head has one first holding part, this position, the first holding part rear end is provided with second holding part be connected, this position, head rear end is provided with one the 3rd holding part, this second holding part of the vertical connection of 3rd holding part, the 3rd holding part is provided with an aft bulkhead;
One spine move part, arranges and is positioned in this first holding part, and this spine move part has the teeth portion in outside;
One clamping piece, is located in this second holding part, and this clamping piece is provided with at least one resistance groove on a teeth portion of front end face and rear end face;
One reversing switch, it at least includes a drive portion, and this drive portion is arranged in the 3rd holding part, and this drive portion front end face is provided with an accommodating hole, and this accommodating hole is this drive portion through axially;
One supports spring, and it is arranged in this accommodating hole, and this supports the rear end support that spring includes the front end support of front end, the bullet portion, stage casing at position, stage casing and rear end, and this front end support abuts in this resistance groove, and this rear end support abuts on this aft bulkhead.
2. ratchet spanner brake structure according to claim 1, it is characterized in that: this resistance groove has two arc ends, is that the first resistance end slot and second resists end slot respectively.
3. ratchet spanner brake structure according to claim 1, it is characterized in that: this reversing switch includes the pulling piece be located at above this drive portion, this pulling piece is a convex handle relative to this drive portion, and the other end of this drive portion this pulling piece relative is provided with a locating dowel.
4. ratchet spanner brake structure according to claim 1, it is characterized in that: the distribution comparatively dense of the number of coils of this front end support and this rear end support, the distribution of the number of coils in this bullet portion, stage casing is more estranged.
5. ratchet spanner brake structure according to claim 4, is characterized in that: the position, termination of this front end support, this rear end support is respectively equipped with an arc contracting and supports head.
6. ratchet spanner brake structure according to claim 4, is characterized in that: the back-office portion of this front end support is positioned at this accommodating hole.
7. ratchet spanner brake structure according to claim 4, is characterized in that: the local, front end of this rear end support is positioned at this accommodating hole.
8. ratchet spanner brake structure according to claim 4, is characterized in that: this rear end support is supported and is connected with a steel ball.
9. ratchet spanner brake structure according to claim 4, is characterized in that: this distribution comparatively dense supporting this front end support of spring and the number of coils of rear end support refers to that two adjacent turns are in closely reclining.
10. ratchet spanner brake structure according to claim 4, it is characterized in that: this more estranged referring between two adjacent turns of distribution supporting the number of coils in the bullet portion, stage casing of spring is gap arrangement, and the distance in this gap is the wire diameter having half spring wire at least.
11. ratchet spanner brake structures according to claim 4, is characterized in that: this front end support is supported and is connected with one and supports cap.
12., according to ratchet spanner brake structure described in claim 11, is characterized in that: should support cap and have the wide larger ogive of the wide less connecting portion in footpath, rear end and footpath, front end.
13., according to ratchet spanner brake structure described in claim 11, is characterized in that: should support the cylinder that cap is a hollow, and should be closed to cap one end, and the other end is in open shape.
14. ratchet spanner brake structures according to claim 1, is characterized in that: this aft bulkhead is the position away from this first holding part on the 3rd holding part.
15. ratchet spanner brake structures according to claim 1, is characterized in that: this aft bulkhead includes at least one arrival slot further.
16., according to ratchet spanner brake structure described in claim 15, is characterized in that: this arrival slot includes one first arrival slot and the second arrival slot, and this first arrival slot and this second arrival slot are positioned at the two side ends of this arrival slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050381.4A CN104842304B (en) | 2014-02-13 | 2014-02-13 | Ratchet spanner brake structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410050381.4A CN104842304B (en) | 2014-02-13 | 2014-02-13 | Ratchet spanner brake structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104842304A true CN104842304A (en) | 2015-08-19 |
| CN104842304B CN104842304B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410050381.4A Active CN104842304B (en) | 2014-02-13 | 2014-02-13 | Ratchet spanner brake structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104842304B (en) |
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| DE20217125U1 (en) * | 2002-11-06 | 2003-01-16 | Hsien, Chih-Ching, Feng Yuan, Taichung | Ratchet wrench switching device |
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| US20040011163A1 (en) * | 2002-07-16 | 2004-01-22 | Chih-Ching Hsien | Compact structure for controlling movement of pawl for ratchet tools |
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| CN202147242U (en) * | 2011-07-01 | 2012-02-22 | 杨承蒲 | Ratchet wrench |
| CN202357071U (en) * | 2011-11-07 | 2012-08-01 | 洲晟实业股份有限公司 | Direction control spring structure for ratchet wrench |
| DE202013103841U1 (en) * | 2013-08-26 | 2013-09-11 | Eduard Wille Gmbh & Co. Kg | Ratchet with fine toothing |
| CN203696868U (en) * | 2014-02-13 | 2014-07-09 | 王又民 | Ratchet wrench braking structure |
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2014
- 2014-02-13 CN CN201410050381.4A patent/CN104842304B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040011163A1 (en) * | 2002-07-16 | 2004-01-22 | Chih-Ching Hsien | Compact structure for controlling movement of pawl for ratchet tools |
| CN2581122Y (en) * | 2002-10-22 | 2003-10-22 | 谢智庆 | Direction controllable wrench tool with improved ratchet direction control structure |
| DE20217125U1 (en) * | 2002-11-06 | 2003-01-16 | Hsien, Chih-Ching, Feng Yuan, Taichung | Ratchet wrench switching device |
| CN2751974Y (en) * | 2004-11-04 | 2006-01-18 | 沈红民 | Commutating ratchet spanner |
| CN2892384Y (en) * | 2006-01-24 | 2007-04-25 | 史丹利七和国际股份有限公司 | Bidirectional ratchet spanner |
| CN202147242U (en) * | 2011-07-01 | 2012-02-22 | 杨承蒲 | Ratchet wrench |
| CN202357071U (en) * | 2011-11-07 | 2012-08-01 | 洲晟实业股份有限公司 | Direction control spring structure for ratchet wrench |
| DE202013103841U1 (en) * | 2013-08-26 | 2013-09-11 | Eduard Wille Gmbh & Co. Kg | Ratchet with fine toothing |
| CN203696868U (en) * | 2014-02-13 | 2014-07-09 | 王又民 | Ratchet wrench braking structure |
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| Publication number | Publication date |
|---|---|
| CN104842304B (en) | 2017-03-01 |
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