CN2339358Y - Reversing device for ratchet wrench - Google Patents
Reversing device for ratchet wrench Download PDFInfo
- Publication number
- CN2339358Y CN2339358Y CN 98241403 CN98241403U CN2339358Y CN 2339358 Y CN2339358 Y CN 2339358Y CN 98241403 CN98241403 CN 98241403 CN 98241403 U CN98241403 U CN 98241403U CN 2339358 Y CN2339358 Y CN 2339358Y
- Authority
- CN
- China
- Prior art keywords
- head
- ratchet
- commutation
- knob
- reversing arrangement
- 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
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a reversing device for a ratchet wrench. The head of the utility model is provided with a containing part, a rotary head for a ratchet wheel and a reversing head are arranged at the containing part, and an elastic component and a steel ball are installed in a groove of the wall surface of the inner side of the containing part. A turn knob is clamped in the center of the reversing head. A gap is arranged between the return knob and an eccentric part. The utility model has the advantages of simple structure, uniform distribution of reversing force, low fabricating cost, and high assembly speed. When the utility model needs to reverse, a wrenching handle of the return knob can be wrenched easily.
Description
The utility model relates to a kind of ratchet spanner reversing arrangement, especially a kind of such ratchet spanner reversing arrangement, when the user desires in conjunction with sleeve or driving element, can utilize the off-centre setting and the distance thereof of knob in the ratchet spanner reversing arrangement of the present utility model, cooperate an eccentric orfice and the reversing arrangement that the commutation head is assembled in spanner to pull this knob easily, and member few, be easy to assembling.
In general hand tools drives structure, ratchet spanner is one of high hand tools of most of people's frequencies of utilization, and is quite convenient when tightening or unscrew sleeve because of it, so ratchet spanner in factory, even is being seen everywhere in general family tool box.Though and various known ratchet spanner can reach the function of expection, because what, the difference of the factors such as principle of mechanism of the design of member, part, the structure of various ratchet spanner has the performance difference on its effect, the reliability, still need improve its defective.
Shown in annex one, this annex is the Taiwan patent, the patent No. 84209717, name is called: have the spanner of surveying torsion and ratchet concurrently, commutating structure wherein mainly be by screw fixedly throw rod and the commutation head, ratchet by this commutation head goes the mesh ratchet gear rotary head again, drives function with the ratchet that reaches expection.Above-mentioned known ratchet spanner structure, really can reach the control of tightening and unscrewing in theory, but, this commutating structure locks with screw owing to adopting, make the difficulty of pulling of throw rod if lock screw too tight, otherwise, if this screw lock is too loose, then throw rod and other member can be easy to generate and get loose, even influence the driving of total; In addition, above-mentioned commutating structure is rather complicated, and member is more, makes and the assembly cost height, and because the fault rate height, and influences the reliability of its use.
The purpose of this utility model is that a kind of ratchet spanner reversing arrangement will be provided, especially a kind of shortcoming that overcomes above-mentioned known technology, commutating structure adopts and to be fixed, off-centre and gap assembling, the commutation force distribution is even, this reversing arrangement has elasticity when pulling, the ratchet spanner reversing arrangement that be easy to pull, member is few.
The purpose of this utility model is achieved in that a kind of ratchet spanner reversing arrangement, extend to form a head by a shank, this head is provided with holding part, the commutation head that the ratchet and that this holding part is placed a ratchet rotary head and its periphery setting is seated in this holding part transmission that is meshed, and be provided with in the groove of holding part interior sidewall surface flexible member and steel ball by its elastic force against the commutation head, the central authorities of this commutation head engage a knob, are provided with the gap that can have elasticity when making its commutation and be easy to pull between this knob and eccentric part.
The utility model has the advantages that:
1. the ratchet spanner reversing arrangement that the utility model proposes, its reversing arrangement is simple in structure, and it is, when operating this spanner, need the words of commutation, can pull the handle of pulling of this knob easily, that utilizes the eccentric part of knob and intermediate gap thereof is provided with the cooperation eccentric orfice, and its commutation strength can evenly be distributed, and make total can produce the rubber-like action, so in when operation, the operator can be light and handy pulls commutation, for the user brings great convenience.
2. the ratchet spanner reversing arrangement that the utility model proposes, employed member is compared with known spanner, has reduced by one times element, but can reach known spanner the function that can't break through or realize, therefore its manufacturing cost reduces greatly, and its assembling speed also improves greatly.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the three-dimensional exploded view according to the ratchet spanner reversing arrangement that the utility model proposes;
Fig. 2 is the schematic perspective view according to the ratchet spanner reversing arrangement that the utility model proposes;
Fig. 3 is the elevational schematic view according to the ratchet spanner reversing arrangement that the utility model proposes;
Fig. 4 is the cutaway view according to the ratchet spanner reversing arrangement that the utility model proposes;
Fig. 5 is the embodiment view according to the ratchet spanner reversing arrangement that the utility model proposes;
Fig. 6 is another embodiment view according to the ratchet spanner reversing arrangement that the utility model proposes.
Below in conjunction with accompanying drawing and most preferred embodiment thereof the concrete structure that the utility model proposes is further described.
As Fig. 1,2, shown in 3, the utility model comprises a shank 10, then continue a perfectly round head 20 from this shank 10, wherein head 20 be provided with one be the numeral " 8 " shape holding part 21, this holding part 21 is combined by a great circle holding part 211 and a roundlet holding part 212, its bottom is provided with a big hole 22 and an eccentric orfice 23, wherein then establish a groove 24 near the interior sidewall surface of roundlet holding part 212, great circle holding part 211 installings one columned ratchet rotary head 30 in addition, and be provided with ratchet 31 at its periphery, this ratchet rotary head 30 convexes with an extension rod 32 then, can be used for wanting driven element in conjunction with sleeve etc., and roundlet holding part 212 is in order to install a commutation 40, this commutation 40 is fan shape, its front periphery is provided with part ratchet 41, mesh for ratchet 31 with ratchet rotary head 30, the rear end then is provided with two interior recesses 42, central part is equipped with a slot 43 and an eccentric grove 44, can be for the holding section 51 and the eccentric part 52 of a ccontaining knob 50, cooperate the slot 43 of this commutation 40 and eccentric grove 44 in order to fix, combine with head 20 with a solid locking plate 60 and a C type clasp 70 more at last and fix.
The holding section 51 of one knob 50 and eccentric part 52 respectively with the slot 43 and eccentric grove 44 dismounting easily of commutation 40, after the setting of an other eccentric part 52 makes this knob 50 and the eccentric orfice 23 of commutation 40 in head 20 engages, can be by its eccentric motion, in the time must commutating, the pulling handle 53 and can be pulled easily of this knob 50, and at its eccentric part 52 and pull the gap 54 that is provided with a specific range between the handle 53, the acting as of this gap 54 makes it combine fixing with commutation 40 to have certain elasticity at the knob 50 of eccentric orfice 23, pull handle 53 on a left side in order to it, the operation of dextrad, this meets the ergonomics that one hand is served as very much.
As shown in Figure 4, can find out structure of the present utility model by it, structure when one is above-mentioned whole knob 50 and its eccentric part 52 with commutation 40 assemblings, it two is by groove 24 device one flexible member 241 and steel balls 242 of learning holding part 21 interior sidewall surface among the figure, this steel ball 242 by by the elastic force of flexible member 241 against this commutation 40, and the engagement of this commutation 40 and ratchet rotary head 30 is only moved along a direction of rotation.
Shown in Fig. 5,6, Fig. 5 be present dynasty counterclockwise pull knob 50 pull handle 53, and drive commutation 40, make the interior recess 42 of this commutation 40 and holding part 21 form one recessed absolutely empty 80,242 of steel balls in groove 24 are against living commutation 40, so this spanner is to dally in a clockwise direction, counterclockwise pull element; Otherwise the handle 53 of pulling among Fig. 6 is to pull along clockwise direction, and this spanner also dallies towards counter clockwise direction, and clockwise direction is pulled element.
Claims (6)
1. ratchet spanner reversing arrangement, it is characterized in that: described ratchet spanner reversing arrangement extends to form a head by a shank, this head is provided with holding part, the commutation head that the ratchet and that this holding part is placed a ratchet rotary head and its periphery setting is seated in this holding part transmission that is meshed, and be provided with flexible member and steel ball in the groove of holding part interior sidewall surface, by its elastic force against the commutation head, the central authorities of this commutation head engage a knob, are provided with the gap that can have elasticity when making its commutation and be easy to pull between this knob and eccentric part.
2. ratchet spanner reversing arrangement according to claim 1 is characterized in that: described ratchet rotary head is provided with ratchet at its periphery, and this ratchet rotary head convexes with then to be used for desiring in conjunction with sleeve etc. an extension rod of driven element.
3. ratchet spanner reversing arrangement according to claim 1 is characterized in that: commutation head front periphery be provided with for the part ratchet of ratchet rotary head engagement, the rear end then is provided with two interior recess central authorities and then establishes a slot and combine with a knob and fix.
4. ratchet spanner reversing arrangement according to claim 3, it is characterized in that: wherein the eccentric part of a knob makes this knob and commutation head be fastened on eccentric orfice, and at its eccentric part and pull be provided with between the handle make knob have elasticity in order to its pull that handle pulls apart from the gap
5. according to claim 1 or 3 described ratchet spanner reversing arrangements, it is characterized in that: wherein recess and holding part form one recessed absolutely empty in the commutation head, and the elastic force of the steel ball in groove by flexible member is against living commutation and making its commutation.
6. according to claim 1 or 3 described ratchet spanner reversing arrangements, it is characterized in that: wherein the commutation head is provided with slot and eccentric grove, respectively the holding section and the eccentric part of ccontaining fixing knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241403 CN2339358Y (en) | 1998-10-13 | 1998-10-13 | Reversing device for ratchet wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98241403 CN2339358Y (en) | 1998-10-13 | 1998-10-13 | Reversing device for ratchet wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339358Y true CN2339358Y (en) | 1999-09-22 |
Family
ID=33988164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98241403 Expired - Lifetime CN2339358Y (en) | 1998-10-13 | 1998-10-13 | Reversing device for ratchet wrench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339358Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314518C (en) * | 2003-06-27 | 2007-05-09 | 利益得股份有限公司 | Ratchet wrench convenient for operation and force application |
| CN100368152C (en) * | 2004-11-29 | 2008-02-13 | 胡厚飞 | Three section type ratchet spanner |
| CN101337342B (en) * | 2007-07-05 | 2011-04-13 | 谢智庆 | Switchover structure of spanner |
| CN103206503A (en) * | 2012-01-16 | 2013-07-17 | 志拓有限公司 | Driving tool |
| CN104416509A (en) * | 2013-08-26 | 2015-03-18 | 爱德华·维勒有限及两合公司 | Ratcheting tool with fine toothing |
| CN106553147A (en) * | 2015-09-28 | 2017-04-05 | 豪越股份有限公司 | Reversing device for ratchet wrench |
-
1998
- 1998-10-13 CN CN 98241403 patent/CN2339358Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314518C (en) * | 2003-06-27 | 2007-05-09 | 利益得股份有限公司 | Ratchet wrench convenient for operation and force application |
| CN100368152C (en) * | 2004-11-29 | 2008-02-13 | 胡厚飞 | Three section type ratchet spanner |
| CN101337342B (en) * | 2007-07-05 | 2011-04-13 | 谢智庆 | Switchover structure of spanner |
| CN103206503A (en) * | 2012-01-16 | 2013-07-17 | 志拓有限公司 | Driving tool |
| CN103206503B (en) * | 2012-01-16 | 2015-12-09 | 志拓有限公司 | Driving tool |
| CN104416509A (en) * | 2013-08-26 | 2015-03-18 | 爱德华·维勒有限及两合公司 | Ratcheting tool with fine toothing |
| CN106553147A (en) * | 2015-09-28 | 2017-04-05 | 豪越股份有限公司 | Reversing device for ratchet wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |