CN1290668C - Ratchet handle brake block device - Google Patents
Ratchet handle brake block device Download PDFInfo
- Publication number
- CN1290668C CN1290668C CN 200310116512 CN200310116512A CN1290668C CN 1290668 C CN1290668 C CN 1290668C CN 200310116512 CN200310116512 CN 200310116512 CN 200310116512 A CN200310116512 A CN 200310116512A CN 1290668 C CN1290668 C CN 1290668C
- Authority
- CN
- China
- Prior art keywords
- brake block
- actuator
- ratchet wrench
- braking
- way ratchet
- 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.)
- Expired - Lifetime
Links
- 230000000903 blocking effect Effects 0.000 claims description 10
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009191 jumping Effects 0.000 description 4
- 230000008034 disappearance Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- 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
- B25B13/462—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 a direction radial to the tool operating axis
- B25B13/463—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 a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a brake block device for a ratchet wrench. The ratchet wrench comprises a head, a containing groove, a braking part, an actuator, a braking block and a reset component, wherein the containing groove is arranged at an internal diameter part of the head; the braking part extends out of the side of the containing groove; the actuator is arranged in the containing groove; clamp teeth are arranged at an external diameter part; clamp teeth are also arranged at a corresponding part of the braking block and the actuator; at least two supporting parts are arranged on the braking block and face the end face of the braking part of the ratchet wrench; one end of the reset component is sheathed on the braking block, and other end of the reset component supports the wall surface of the braking part. A multi-supporting force state is formed by the braking block through at least two supporting parts, so the jogged sealing degree and the stability of the clamp teeth between the braking block and the actuator are improved, the tooth disengagement or tooth slippage or undue collision is correspondingly reduced, and the service life of the integral structure is lengthened.
Description
[technical field]
The invention relates to a kind of ratchet spanner, particularly about a kind of brake block device of one-way ratchet wrench.
[background technology]
The clamping structure form of present ratchet spanner, promptly as Fig. 6, shown in 7, its spanner 90 mainly has a head 91, and form storage tank 92 that hollow runs through becomes the ratchet form with a ccontaining external diameter actuator 93 in head 91 inner radius, and be provided with an arc stopper portion 94 in storage tank 92 sides, for a ccontaining brake block 95,94 in the side direction of brake block 95 and stopper portion are provided with the return unit 96 of a spring form in addition, make brake block 95 push the end in addition of stopper portion 94 to, so that the relative latch 950 of brake block 95 and actuator 93,930 blockings that are meshing with each other become a form that drives, and brake block 95 back sides and stopper portion 94 walls hold the generation one support force F that holds mutually; So structure has following disappearance in fact, such as:
1, brake block 95 hold poor stability: because brake block 95 is held in stopper portion 94 walls, be with arc surface holding to arc surface, though claim it is to hold mutually with cambered surface with radian, and its actual capabilities place of holding only is some contact, and its position contacting may be because of holding a little 97 difference, as shown in Figure 6, when it holds a little 97 when being positioned at the central part of brake block 95, the engagement that its brake block 95 and actuator are 93 is nearly central sections, and be when being held in brake block 95 left-hand end when it holds a little 97, its brake block 95 and actuator 93 position engaged promptly have the phenomenon of skew as shown in Figure 7, and brake block 95 is in an unsure state, be that end and 93 of actuators very easily produce unnecessary space in addition for brake block 95, rock or mesh untrue situation and cause, cause being difficult to the drive that effectively is meshing with each other, very easily thereby have the facts of taking off tooth or improper impact damage to take place.
2, engagement drives torque value and reduces relatively: mesh drive uncertain because aforesaid brake block 95 instabilities cause on the one hand, and influence outside the performance of torsion, in addition its to hold a little 97 only be the mechanics form of a bit, its stopper portion 94 only can produce one to brake block 95 and hold a little 97 and one support force F, so single-point holds a little 97 and the support form of single support force F, not only very easily cause whole stress to concentrate, and when making the application of force, the concentrated structural change of 97 places generation stress very easily causes the structural damage at this place in holding a little, and the strength that relative its can support, inevitable minimizing relatively is a lot of, so but the torsion of the application of force must reduce, and can ruined probability improve at once, must be subjected to bad influence the service life of whole spanner.
3, the blocking stroke has some setbacks: when the simple stress centrostigma holds a little 97, because aforesaid explanation is general, it is to support with single support force F, when therefore its drag is slightly larger than this support force F, its stopper portion 94 walls very easily thereby cause unnecessary destruction and produce distortion, when this distortion produces, brake block 95 is when the stopper displacement next time, it very easily is absorbed in this distortion part, cause uncertain that blocking drives on the contrary, and brake block 95 and 94 in stopper portion also very easily produce unnecessary gap, and make latch 950,930 can't be certain engagement drive, easilier cause the disappearance of taking off tooth or improper collision, so necessity of improvement is arranged.
[summary of the invention]
The objective of the invention is to be to provide a kind of brake block device of one-way ratchet wrench, make spanner can improve the stability of whole supporting structure relatively and improve available torsion, and can prolong the service life of spanner.
For achieving the above object, the invention provides a kind of brake block device of one-way ratchet wrench, it is characterized in that: comprise a brake block, this brake block one end face is provided with latch, and end face is to be provided with at least two top-holding parts in addition, to form at least two support forces, make the blocking more stably of brake block latch drive the relative member that is engaged with.
The present invention also provides a kind of brake block device of one-way ratchet wrench, it is characterized in that: this one-way ratchet wrench comprises:
One head, this head inner radius is provided with a storage tank, and a stopper portion is extended in the storage tank side;
One actuator, this actuator is to be placed in the storage tank, and is provided with latch in outer radius;
One brake block, this brake block and actuator opposite position are provided with latch, and this brake block is provided with at least two top-holding parts towards the end face of spanner stopper portion;
One return unit, an end is placed on the brake block, and end is held on the wall of stopper portion in addition.
Make brake block form the form of many support forces by two or more top-holding parts, take off tooth, jumping tooth or improper collision to prolong the life-span that overall structure is used to improve the adaptation and the stability of latch engagement between brake block and actuator, more can reduce relatively.
The brake block device of described one-way ratchet wrench is characterized in that: brake block forms the spacer portion of depression between top-holding part.
The brake block device of described one-way ratchet wrench is characterized in that: the brake block end is provided with decides spring portion, is placed on this for the return unit end and decides spring portion.
The brake block device of described one-way ratchet wrench is characterized in that: this return unit is a coil spring.
The brake block device of described one-way ratchet wrench is characterized in that: this brake block is provided with on the end face of top-holding part and is provided with anti-card division in addition.
In sum, the brake block device of one-way ratchet wrench of the present invention, be in the relative top-holding parts that are provided with many groups between brake block and stopper portion, to form multiple spot top system contacting structure form between the stopper portion wall that forces brake block and spanner, and make the structural form that the many support forces of brake block are provided that stopper portion can be certain, and the comprehensive and actuator that makes that brake block can the be certain blocking that is meshing with each other, to improve the degree of engagement, the effect that reaches high torsion, high stability and increase the service life.
[description of drawings]
Fig. 1: be perspective exploded view of the present invention.
Fig. 2: be outward appearance combination schematic diagram of the present invention.
Fig. 3: be generalized section of the present invention.
Fig. 4: be amplification profile schematic diagram of the present invention.
Fig. 5: be action generalized section of the present invention.
Fig. 6: the brake block device section enlarged diagram that is known ratchet spanner.
Fig. 7: the section enlarged diagram that is the brake block device variation of known ratchet spanner.
[specific embodiment]
For enabling further to understand structure of the present invention, feature and other purposes, now with as after the preferred embodiment conjunction with figs. describe in detail as after, the illustrated embodiment of this accompanying drawing is the usefulness for explanation.
Please cooperate and consult shown in Fig. 1,2,3,4, one-way ratchet wrench 10 of the present invention comprises:
One head 11, head 11 inner radius are set as a storage tank 110, and the stopper portion 111 of half arc is extended in storage tank 110 sides;
One actuator 12, it is to be placed in the storage tank 110 of aforementioned head 11, and has the latch 120 of latch form in outer radius;
One brake block 20,12 relative latches 21 that are provided with of its brake block 20 and actuator, brake block 20 1 ends are provided with the columned spring portion 22 that decides, its brake block 20 convexes with several top-holding parts 23 in addition with respect to stopper portion 111 ends, and in 23 spacer portion 24 that form depression of top-holding part, what make that brake block 20 can be certain pushes up 111 walls to stopper portion simultaneously to count top-holding part 23, shown in Fig. 3,4, and be design for two groups of top-holding parts 23 with accompanying drawing of the present invention, so that the top system of 111 in brake block 20 and stopper portion remains on the structural form of 2 top systems; Closely decide spring portion 22 places in brake block 20 in addition and be provided with an anti-card division 25, as shown in Figure 5, so that brake block 20 can peak at spanner 10 heads 11 stopper portions 111 walls when being pushed back, brake block 20 is by stopper portion 111 top systems, the latch 21 of brake block 20 can break away from by latch 120 certain and actuator 12, between the latch that prevents actuator 12 and brake block 20 stuck phenomenon to be arranged.
One return unit 30 is coil spring forms, and the one end is placed in deciding in the spring portion 22 of brake block 20, and end is held on the wall of stopper portion 111 in addition, with the strength that provides brake block 20 to reset.
When brake block 20 holds for return unit 30, and when utilizing the top-holding part 23 of brake block 20 to be held on stopper portion 111 walls, shown in Fig. 4,5, the drive that can be meshing with each other of the latch 21,120 of its brake block 20 and actuator 12; Wherein, because brake block 20 of the present invention is to hold wall to stopper portion 111 with two groups of top-holding parts 23, make its wall produce two groups of support force F naturally, and these two groups of support force F are the both ends that on average support brake block 20, brake block 20 can be fastened with actuator 12 really and stably.
So structure can reach following various functions, comprising:
What 1, blocking drove is stable high: because brake block 20 is with two or more tops The design of section 23 processed is so that brake block 20 forms the structure shape of a dual-gripper to stopper section 111 Attitude, as shown in Figure 4, it namely forms two or more support forces F to brake block 20, and The generation of its two support force F can effectively steadily support brake block 20, and makes brake block 20 Latch 21 with latch 120 blockings of actuator 12 more stable, do not have and rock skew Phenomenon is so that the state that engagement drives is more certain.
2, reduce the facts of taking off tooth, jumping tooth or improper impact wreckage: owing to 20 of its brake blocks The support force F that obtains is many and steady, makes the latch 21 of brake block 20 and the card of actuator 12 Tooth 120 cooperates more closely stable, and actuator 12 and brake block 20 unlikely generation spaces subtract Rocking or actuator 12 and 20 untrue situations of engagement of brake block of few actuator 12, namely Can effectively reduce the disappearance of taking off tooth, jumping tooth, relatively can effectively reduce because taking off tooth or jumping tooth The improper impact damage facts that causes can be guaranteed integrally-built integrality.
3, engagement drive torsion effectively improves: on the one hand because aforementioned brake block 20 high stables The property lifting drive certain state, more by the design of multiple spot top-holding part 23, make to produce multiple spot The Mechanical Form of support force F, so the drag area A of multiple spot support force F institute projection gets final product Effectively enlarge, the area of drag increases, and nature can increase the output of spanner 10 torque values, and Can lower structural strength reach general torque value demand, with the cost of reduction material, or The strength of materials that can be same and make with known same structural strength under, can reach height and turn round The output demand of power value.
4, reduce the infringement of stopper section 111 wall structures: because the increase of support force F quantity, no But can increase the area of drag, more can effectively reduce the facts that stress is concentrated, and make stopper section The unlikely concentrations of the drag at 111 places is in a bit, and causes the stress at stopper section 111 places to concentrate The integrality of stopper section 111 place's structures can be effectively guaranteed in distortion, uses the longevity and reach to prolong The purpose of life.
5, the blocking stroke is smooth and easy: because the degree that is damaged of its stopper section 111 surfaces and can Can property effectively reduce, stopper section 111 walls then keep the integrality of its structure, so, pull Motion block 20 can smoothly move when mobile in stopper section 111 is interior, does not have the facts that blocking has some setbacks Take place, and can make fast and effectively the drive that is fastened of brake block 20 and actuator 12, will pull Hand 10 drives sluggish phenomenon and effectively reduces, and more makes latch 21,120 unlikely generations needn't The space of wanting, and can reach the certain purpose of relative raising engagement.
Claims (6)
1, a kind of brake block device of one-way ratchet wrench, it is characterized in that: comprise a brake block, this brake block one end face is provided with latch, and end face is to be provided with at least two top-holding parts in addition, to form at least two support forces, make the blocking more stably of brake block latch drive the relative member that is engaged with.
2, a kind of brake block device of one-way ratchet wrench, it is characterized in that: this one-way ratchet wrench comprises:
One head, this head inner radius is provided with a storage tank, and a stopper portion is extended in the storage tank side;
One actuator, this actuator is to be placed in the storage tank, and is provided with latch in outer radius;
One brake block, this brake block and actuator opposite position are provided with latch, and this brake block is provided with at least two top-holding parts towards the end face of spanner stopper portion;
One return unit, an end is placed on the brake block, and end is held on the wall of stopper portion in addition.
3, the brake block device of one-way ratchet wrench as claimed in claim 1 or 2 is characterized in that: brake block forms the spacer portion of depression between top-holding part.
4, the brake block device of one-way ratchet wrench as claimed in claim 2 is characterized in that: the brake block end is provided with decides spring portion, is placed on this for the return unit end and decides spring portion.
5, the brake block device of one-way ratchet wrench as claimed in claim 2 is characterized in that: this return unit is a coil spring.
6, the brake block device of one-way ratchet wrench as claimed in claim 1 or 2 is characterized in that: this brake block is provided with on the end face of top-holding part and is provided with anti-card division in addition.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/308,021 | 2002-12-03 | ||
| US10/308,021 US6820520B2 (en) | 2002-11-11 | 2002-12-03 | Ratchet wrench having a rigid locking structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1504297A CN1504297A (en) | 2004-06-16 |
| CN1290668C true CN1290668C (en) | 2006-12-20 |
Family
ID=32312215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310116512 Expired - Lifetime CN1290668C (en) | 2002-12-03 | 2003-11-14 | Ratchet handle brake block device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1426144B1 (en) |
| CN (1) | CN1290668C (en) |
| DE (1) | DE60310183T2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410019C (en) * | 2005-07-01 | 2008-08-13 | 陈泰佐 | Direct-changing wrench |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164167A (en) * | 1998-06-22 | 2000-12-26 | Chen; Yu-Tang | Ratchet wrench having gear driven pawl |
| US6148695A (en) * | 1999-08-03 | 2000-11-21 | Hu; Bobby | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and ratcheting tools with such ratchet wheel |
| DE20001237U1 (en) * | 2000-01-25 | 2000-04-27 | Hung, Kun-Chih, Ta Li, Taichung | ratchet |
| US6450066B1 (en) * | 2001-10-19 | 2002-09-17 | Bobby Hu | Head of a wrench handle |
| DE20200403U1 (en) * | 2002-01-11 | 2002-05-16 | Chen, Mu-Lin, Taichung | ratchet wrench |
-
2003
- 2003-09-05 DE DE2003610183 patent/DE60310183T2/en not_active Expired - Lifetime
- 2003-09-05 EP EP20030020160 patent/EP1426144B1/en not_active Expired - Lifetime
- 2003-11-14 CN CN 200310116512 patent/CN1290668C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE60310183D1 (en) | 2007-01-18 |
| DE60310183T2 (en) | 2007-09-20 |
| CN1504297A (en) | 2004-06-16 |
| EP1426144A1 (en) | 2004-06-09 |
| EP1426144B1 (en) | 2006-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061220 |