CN102001070A

CN102001070A - Ratchet wrench

Info

Publication number: CN102001070A
Application number: CN2009101729268A
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2011-04-06
Anticipated expiration: 2029-09-03
Also published as: CN102001070B

Abstract

The invention provides a ratchet wrench, comprising a body, a driving body, a ratchet device, a changeover switch and a control element, wherein the control element is sleeved on a pivot column of the driving body; a locating element is arranged between the control element and the changeover switch, thus effectively lowering the production cost; the control element is directly linked with the changeover switch, thus effectively improving the operation sensitivity and reducing errors; the locating element is provided with three locating slots which have selective locating relations of three locations with the linkage end of the changeover switch; and the locating effect of the control element is achieved by the linkage end of the changeover switch; therefore, the locating structure is unnecessary to be additionally processed on the wrench body, thus effectively lowering the production cost.

Description

Ratchet spanner

Technical field

The present invention relates to a kind of Wrench, accuse the ratchet spanner that has direct interlock and locating effect between product and the reversing switch especially.

Background technology

Please refer to U.S. Patent number the 7th, 278, " Reversible Ratchet Wrench " patent case of No. 339, it is a kind of reversing ratchet wrench.This ratchet spanner utilizes a ring (ring) to drive the change in location that a conversion assembly (switching member) produces both direction, and the conversion assembly front end is provided with and compresses assembly (pressing member) and elastic parts (elastic element) and come flexible promotion pawl (pawl), described pawl can be controlled between two positions move, and be engaged on the runner assembly (drivemember).

Can notice that at first this reversing ratchet wrench is the action that utilizes a sliding piece (reversing plate) to commutate, and sliding piece is hubbed on the runner assembly and be available for users to operation.

Many workplaces must allow user's work that comes back, and with the square toes end of the runner assembly of ratchet spanner towards the top (in contrast to centrifugal force), the square toes end of runner assembly top is connected article such as a sleeve or sleeve extension extension bar more then, under these circumstances, runner assembly is the weight of bearing article such as sleeve or sleeve extension extension bar, sometimes the weight that also comprises working substance itself, and when operating sliding piece if user's desire is switched the spine move direction this moment, can find that sliding piece is difficult to switch, the square toes end of article autorotation assemblies such as sleeve or sleeve extension extension bar must be unloaded so again, the square toes end that makes runner assembly is towards the below, the direction of switching sliding piece that can be appropriate, also inconvenient in the use.

And the user is when operating sliding piece, and ring can follow sliding piece to move, and makes the ring and the end face of runner assembly produce friction, following in prolonged and repeated operation, and such friction can cause the abrasion of ring, and then produces iron filings and form the problem that operation has some setbacks.

In order to allow sliding piece have advantages of good positioning effect; usually can go up the processing location structure at spanner (wrench); for example sell (pin) and pin-and-hole (pin hole); utilize the positioner on the sliding piece to come to produce positioning relation then with pin; but the design of processing location structure can cause the cost of whole reversing ratchet wrench to increase usually on spanner; the demand in market just is not easy to enlarge, and forms the obstruction of selling.

And, it is quite a lot of with the related part between the conversion assembly to be connected in sliding piece, all can there be clearance to exist between each part, so when the user operates sliding piece, can cause between each part blunt in the running, and producing the insensitive problem of conversion assembly start, spanner just can't make spanner be promoted as quality goods if insensitive operation takes place, so the desire to purchase that also can't stimulate consumer.

Summary of the invention

The technical problem that ratchet spanner of the present invention institute desire solves mainly is, it is quite a lot of that tradition connects the related part of usefulness, and control piece of the present invention is direct interlock reversing switch, therefore effectively improves Operational Figure Of Merit, and reduces the generation of error; And, because of the engaged section of driving body is to contact towards first plane of body and with body near an end of driving rod, first plane contact of the bottom surface of control piece and body, so in the process of switching controls part, even if the user with the drive post of the driving body of ratchet spanner towards the top (in contrast to centrifugal force), and make drive post be connected article such as sleeve or sleeve extension extension bar, control piece remains and quite is easy to switch, not the problem that can be difficult to switch; Simultaneously, the end-face friction of the driving body during control piece can not rotated and the shortcoming that wears away allow control piece use more smooth and easy and can increase service life.

The secondary objective of ratchet spanner of the present invention is that traditional location structure must be located on the wrench body, and control piece of the present invention is set on the driving rod of driving body, and positioning piece is located between control piece and the reversing switch, can effectively reduce production costs.

Another purpose of ratchet spanner of the present invention is, keeper is provided with three locating slots, can produce the selectivity location relation of three positions with the interlock end of reversing switch, because the locating effect of control piece is to bring in by the interlock of reversing switch to reach, therefore need not be on wrench body the additional processing location structure, so can effectively reduce production cost.

For achieving the above object, the technical solution used in the present invention is:

A kind of ratchet spanner is characterized in that, includes:

One body, described body comprises that a shank and one connect the head that is located at described shank one end, be formed with an accommodation space in the described head, described accommodation space includes one first storage tank and second storage tank that is arranged with by the described first storage tank internal face, described second storage tank is connected with described first storage tank, described head has one first plane and one second plane, first plane of described head is provided with an axis hole that is connected with described first storage tank, second plane of described head is provided with a through hole that is connected with described first storage tank, and first plane of described head offers a pivot groove, and described pivot groove is communicated in the side of described second storage tank in contrast to described first storage tank;

One driving body, it is to be contained in first storage tank of described accommodation space via described through hole, and can produce relative rotation relationship, the outside of described driving body is around forming an engaged section, one end of described driving body is provided with a driving rod, described driving rod is the axis hole that stretches out in described head first plane, and described driving body is provided with a drive post in contrast to an end of driving rod;

One spine move device, it includes one first clipping block, second clipping block and an elastomer that is located between described two clipping blocks, described two clipping blocks are curved block and movable being located in described second storage tank, and described two clipping blocks form a field of conjugate action that is engaged in described driving body engaged section respectively in the face of a side of described driving body;

One reversing switch, it has a pivot end that is hubbed in the described head pivot groove, be used for controlling the meshing relation of described spine move device and described driving body, described reversing switch is formed with an interlock end, described interlock end is provided with a projection that protrudes from described body first plane, and the axis of described projection and described reversing switch has the distance of radial direction; And

One control piece, the one end is to be hubbed on the driving rod that described driving body stretches out in described head first plane, and described control piece can produce optionally positioning relation with described reversing switch, described control piece forms a control part that supplies the user to stir in a side, described control part is provided with a chute that radially extends, described chute is to supply the projection of described reversing switch at the relative sliding relationship of interior generation, and the transposition of dialling that makes described control part directly control described reversing switch is put.

In the above-mentioned ratchet spanner, the interlock end of described reversing switch is provided with a location division that protrudes from described body first plane, described control part is provided with a keeper, and described keeper can produce selectivity location relation with the location division of described reversing switch.

In the above-mentioned ratchet spanner, described location division is the circular bulk that is coaxial with described reversing switch.

In the above-mentioned ratchet spanner, described keeper is provided with three locating slots, and described keeper one of can optionally make in described three locating slots the location division that holds described reversing switch.

In the above-mentioned ratchet spanner, described keeper also is formed with reset portion between described two adjacent locating slots, the location division that the locating slot in the middle of described reset portion can the application of force allows described keeper make automatically in the location division of described reversing switch to be positioned at holds described reversing switch.

In the above-mentioned ratchet spanner, described control piece is provided with a storage tank at control part with respect to the position of described reversing switch location division, and described keeper is located in the described storage tank.

In the above-mentioned ratchet spanner, the two ends of described storage tank are respectively equipped with a joint portion, described keeper two ends form a binding end respectively, described binding end is the joint portion that is incorporated into described control piece, makes described keeper can produce strain along described control piece radial direction in described storage tank.

In the above-mentioned ratchet spanner, described two clipping blocks are respectively equipped with a circular limiting section, described limiting section is to extend towards first plane of described head, described pivot end is provided with one first clicking section and one second clicking section parallel to each other with respect to the position of described clipping block, described two clicking sections are to stretch into second storage tank and contact that can be the separately limiting section at corresponding described clipping block, described reversing switch can be optionally one of to move one of in described two clicking sections in described two clipping blocks, reach the meshing relation between described clipping block of control and the described driving body.

In the above-mentioned ratchet spanner, described control piece is provided with a pivot hole, and described pivot hole is to be set in the driving rod that described driving body protrudes from described head first plane.

In the above-mentioned ratchet spanner, first plane of described interlock end and described body head is positioned at same plane.

Can summarize the present invention with regard to the above and have following advantage:

1. ratchet spanner of the present invention, wherein control piece is direct interlock reversing switch, therefore effectively improves Operational Figure Of Merit, and reduces the generation of error.

2. ratchet spanner of the present invention, wherein control piece is set on the driving rod of driving body, and positioning piece is located between control piece and the reversing switch, can effectively reduce production costs.

3. ratchet spanner of the present invention, wherein keeper is provided with three locating slots, can produce the selectivity location relation of three positions with the interlock end of reversing switch, because the locating effect of control piece is to bring in by the interlock of reversing switch to reach, therefore need not be on wrench body the additional processing location structure, so can effectively reduce production cost.

Description of drawings

Fig. 1 is the stereo appearance figure of ratchet spanner of the present invention;

Fig. 2 is the three-dimensional exploded view of ratchet spanner of the present invention;

Fig. 3 is the three-dimensional exploded view at another visual angle of ratchet spanner of the present invention;

Fig. 4 is the profile of being got along the 4-4 line among ratchet spanner Fig. 1 of the present invention;

Fig. 5 is the profile of being got along the 5-5 line among ratchet spanner Fig. 4 of the present invention, and the expression control piece is positioned at primary importance;

Fig. 6 is the profile of being got along the 6-6 line among ratchet spanner Fig. 4 of the present invention;

Fig. 7 is the state diagram that the control piece of ratchet spanner of the present invention is positioned at the second place;

Fig. 8 is the continuity of ratchet spanner Fig. 6 of the present invention;

Fig. 9 is the state diagram that the control piece of ratchet spanner of the present invention is positioned at the 3rd position;

Figure 10 is the continuity of ratchet spanner Fig. 6 of the present invention.

Description of reference numerals: 10-body; The 11-shank; The 12-head; 121-first plane; 122-second plane; The 13-accommodation space; 131-first storage tank; 132-second storage tank; The 133-axis hole; The 134-through hole; 14-pivot groove; The 20-driving body; The 21-engaged section; The 22-driving rod; The 221-catching groove; The 23-drive post; The 24-depression bar; The 241-steel ball; The 242-elastomer; 30-spine move device; 31-first clipping block; The 311-field of conjugate action; The 312-limiting section; 32-second clipping block; The 321-field of conjugate action; The 322-limiting section; The 33-elastomer; The 40-reversing switch; The 41-pivot end; 411-first clicking section; 412-second clicking section; 42-interlock end; The 421-projection; The 422-location division; The 50-control piece; 51-pivot hole; The 52-control part; The 521-chute; The 522-storage tank; The 523-joint portion; The 53-keeper; The 531-binding end; The 532-locating slot; The 533-reset portion; The 60-fastener.

The specific embodiment

With reference to Fig. 1 and Fig. 2, ratchet spanner of the present invention includes a body 10, driving body 20, spine move device 30, a reversing switch 40 and a control piece 50; Wherein:

Please cooperate simultaneously with reference to Fig. 3 to Fig. 4, body 10 comprises that a shank 11 and one connect the head 12 that is located at shank 11 1 ends.Shank 11 is to grip for the user, be formed with an accommodation space 13 in the head 12, accommodation space 13 includes first storage tank 131 of a circle and one and is arranged with second storage tank, 132, the second storage tanks 132 that are falcate by first storage tank, 131 internal faces and is connected with first storage tank 131.When body 10 is operated by the user, be that the axial line with first storage tanks 131 in the head 12 rotates as pivot substantially.

Head 12 has first plane 121 parallel to each other and second plane 122, and first plane 121 of head 12 is provided with a circular axis hole 133 that is connected with first storage tank 131, axis hole 133 and first storage tank, 131 concentrics.Second plane 122 of head 12 is provided with a manhole 134 that is connected with first storage tank 131, through hole 134 and first storage tank, 131 concentrics.Head 12 first planes 121 offer a circular pivot groove 14 again, and pivot groove 14 is communicated in the side of second storage tank 132 in contrast to first storage tank 131, and the axial line of pivot groove 14 is parallel haply with the axial line of first storage tank 131.

Driving body 20 is to be contained in first storage tank 131 of accommodation space 13, and can produce relative rotation relationship.The axle center of the pivot of driving body 20 and first storage tank 131 is on same axis.The outside of driving body 20 is around forming an engaged section 21, and engaged section 21 is to be contained in first storage tank 131 via the through hole 134 on head 12 second planes 122.Engaged section 21 is that a plurality of ratchets constitute.

The one end extension of driving body 20 is provided with a columniform driving rod 22, and driving rod 22 is the axis holes 133 that stretch out in head 12 first planes 121.The end-rings of driving rod 22 is provided with a catching groove 221.

Driving body 20 is provided with a drive post 23 in contrast to an end of driving rod 22, and drive post 23 is to be the square body shape, can connect and establish sleeve.Drive post 23 1 side wall surfaces are provided with a steel ball 241.And whole driving body 20 vertically wears a depression bar 24 by driving rod 22 to the centre of drive post 23, and depression bar 24 is arranged with an elastomer 242 (as Fig. 4), makes depression bar 24 have elastic displacement longitudinally in driving body 20.And depression bar 24 can make steel ball 241 on the drive post 23 have the function of catch sleeve.Rely on and to press moulded rod 24, make steel ball 241 can in contract and make drive post 23 unload lower sleeve easily.

Spine move device 30 is to be contained in second storage tank 132 of head 12, and produces meshing relation with driving body 20.Spine move device 30 includes one first clipping block 31, second clipping block 32 and an elastomer 33 that is located between two clipping blocks 31,32.Described two clipping blocks the 31, the 32nd, curved block and mobilizable being slidingly installed in second storage tank 132, and described two

clipping blocks

31,32 form the field of conjugate action 311,321 of a concave arc shape respectively in the face of a side wall surface of driving body 20, be distributed with a plurality of ratchets on the field of conjugate action 311,321,

clipping block

31,32 highly meshes by engaged section 21 generations of the field of conjugate action 311,321 and driving body 20 outsides has the effect that improves torsion.Described two

clipping blocks

31,32 are respectively equipped with a circular limiting section 312,322, limiting section the 312, the 322nd, and extend on headward 12 first plane 121.Described elastomer 33 provides these two

clipping blocks

31,32 power away from each other.

One end of reversing switch 40 is the pivot grooves 14 that are hubbed on head 12, is used for controlling the meshing relation of spine move device 30 and driving body 20.Reversing switch 40 has a pivot end 41 that is hubbed on pivot groove 14, and the axial line of the pivot of pivot end 41 and pivot groove 14 is positioned on the same axis.Pivot end 41 is provided with two first clicking sections 411 parallel to each other and second clicking section 412 with respect to the position of the limiting section 312,322 of described two

clipping blocks

31,32, described two clicking sections the 411, the 412nd, stretch in second storage tank 132 and contact that can be separately and the limiting section 312,322 of

corresponding clipping block

31,32, and reversing switch 40 can be optionally one of to move one of in two clicking sections 411,412 in two

clipping blocks

31,32, reach the meshing relation between

control clipping block

31,32 and the driving body 20.

Reversing switch 40 is formed with an interlock end 42 in contrast to an end of pivot end 41, and the interlock end 42 of reversing switch 40 is that first plane 121 with body 10 is positioned at same plane.Interlock end 42 is provided with a projection 421 that protrudes from body 10 first planes 121, and the axis of projection 421 and described reversing switch 40 maintains the distance of radial direction, and furthermore, the axis of projection 421 is parallel with the axis of reversing switch 40.The interlock end 42 of reversing switch 40 is provided with one and extends and protrude from the location division 422 on body 10 first planes 121 along pivot end 41 direction of axis line, and location division 422 is to be made as and coaxial circular block of reversing switch 40 in the present embodiment.

Control piece 50 is the driving rods 22 that are hubbed on driving body 20, and can produce optionally positioning relation with reversing switch 40, puts with the transposition of dialling of control reversing switch 40, reaches the meshing relation of control spine move device 30 and driving body 20.Control piece 50 is provided with a pivot hole 51, pivot hole 51 is to be set in the driving rod 22 that driving body 20 protrudes from head 12 first planes 121, the axial line in described pivot hole 51 and the pivot of described driving body 20 are same axis, and control piece 50 can be pivoted with respect to driving body 20.Described control piece 50 utilizes a fastener 60 and can be hubbed on the driving rod 22 of driving body 20, and solid first storage tank 131 that in catching groove 221, driving body 20 can also be hubbed on body 10 heads 12 of described fastener 60 buttons, avoid driving body 20 and control piece 50 to break away from body 10.

Control piece 50 forms a control part 52 that supplies the user to stir in a side, and the bottom surface of control part 52 is to be provided with a chute 521 that extends along the radial direction in pivot hole 51, and chute 521 is to supply the projection 421 of reversing switch 40 at the relative sliding relationship of interior generation.Control piece 50 is provided with the storage tank 522 of an arc with respect to the position of reversing switch 40 location divisions 422 in the bottom surface of control part 52.Storage tank 522 maintains fixing radius distance with the axial line in pivot hole 51, and the two ends of storage tank 522 are respectively equipped with a joint portion 523.

Control part 52 is provided with a keeper 53, and keeper 53 can produce selectivity location relation with the interlock end 42 of reversing switch 40, and control piece 50 can be moved between primary importance, the second place and the 3rd position.Keeper 53 is located at storage tank 522 and is the metal clips shape, keeper 53 two ends form a binding end 531 respectively, binding end 531 is the joint portions 523 that are incorporated into control piece 50, makes keeper 53 can produce strain along control piece 50 radial directions in storage tank 522.Keeper 53 is provided with at least two semicircular locating slots 532 between two ends, the keeper 53 in the present embodiment is provided with three locating slots 532, and keeper 53 one of can optionally make in three locating slots 532 location division 422 that holds reversing switch 40.Keeper 53 also is formed with the reset portion 533 that is flat between two adjacent locating slots 532, the reset portion 533 of keeper 53 and the radius distance of pivot hole 51 axial lines be less than the radius distance of locating slot 532 with pivot hole 51 axial lines, is positioned at the location division 422 that the locating slot 532 of centre holds reversing switch 40 so reset portion 533 can the application of force allows keeper 53 make automatically in the location division 422 of reversing switch 40.

With reference to Fig. 5 and Fig. 6, the state when being positioned at primary importance for control piece 50.When control piece 50 is positioned at primary importance, control part 52 remains on and the parallel position of shank 11 axis haply, be positioned at the location division 422 that keeper 53 middle locating slots 532 just hold reversing switch 40, make control piece 50 can obtain the good location effect that reversing switch 40 is provided.

This moment, the projection 421 of reversing switch 40 was to be positioned at the end of the chute 521 of control piece 50 near pivot hole 51.And two clicking sections the 411, the 412nd of reversing switch 40, contact separately is at the limiting section 312,322 of corresponding first,

second clipping block

31,32, two

clipping blocks

31,32 like this are not moved by reversing switch 40 as yet, so two

clipping blocks

31,32 all are engaged on the driving body 20 simultaneously, driving body 20 can't be rotated with respect to body 10.When the user operated body 10 rotations, body 10 can drive driving body 20 simultaneously and rotate together, so can finely tune the switching operation.

With reference to Fig. 7 and Fig. 8, the state when being positioned at the second place for control piece 50.When control piece 50 was positioned at the second place, the location division 422 near just holding reversing switch 40 one of in the locating slot 532 at keeper 53 two ends made control piece 50 can obtain the good location effect that reversing switch 40 is provided.

The projection 421 of reversing switch 40 then is positioned at the chute 521 of control piece 50 away from the end in pivot hole 51, so make first clicking section 411 of reversing switch 40 can move the limiting section 312 of first clipping block 31, make second clipping block 32 and driving body 20 form engagement and make driving body 20 have the effect of one-directional rotation.Driving body 20 shown in the figure is to rotate counterclockwise with respect to body 10, that is to say, when the user operates body 10 and rotates counterclockwise, can drive driving body 20 simultaneously and rotate counterclockwise (because of driving body 20 can't clockwise rotate with respect to body 10) together, so can allow driving body 20 carry out counterclockwise switching operation.

With reference to Fig. 9 and Figure 10, the state when being positioned at the 3rd position for control piece 50.When control piece 50 was positioned at the 3rd position, the location division 422 near just holding reversing switch 40 one of in the locating slot 532 at keeper 53 two ends made control piece 50 can obtain the good location effect that reversing switch 40 is provided.

The projection 421 of reversing switch 40 then is positioned at the chute 521 of control piece 50 away from the end in pivot hole 51, so make first clicking section 411 of reversing switch 40 can move the limiting section 322 of second clipping block 32, make first clipping block 31 and driving body 20 form engagement and make driving body 20 have the effect of one-directional rotation.Driving body 20 shown in the figure is to rotate counterclockwise with respect to body 10, that is to say, when the user operates body 10 and rotates counterclockwise, can drive driving body 20 simultaneously and rotate counterclockwise (because of driving body 20 can't clockwise rotate with respect to body 10) together, so can allow driving body 20 carry out counterclockwise switching operation.

And because of the engaged section 21 of driving body 20 be to contact near an end of driving rods 22 towards first plane 121 of body 10 and with body 10, the bottom surface of control piece 50 contacts with first plane 121 of body 10, so in the process of switching controls part 50, even if the user with the drive post 23 of the driving body 20 of ratchet spanner towards the top (in contrast to centrifugal force), and make drive post 23 be connected article such as sleeve or sleeve extension extension bar, control piece 50 remains and quite is easy to switch, not the problem that can be difficult to switch.Simultaneously, the end-face friction of the driving body 20 during control piece 50 can not rotated and the shortcoming that wears away allow control piece 50 use more smooth and easy and can increase service life.

More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.

Claims

1. a ratchet spanner is characterized in that, includes:

2. ratchet spanner according to claim 1, it is characterized in that: the interlock end of described reversing switch is provided with a location division that protrudes from described body first plane, described control part is provided with a keeper, and described keeper can produce selectivity location relation with the location division of described reversing switch.

3. ratchet spanner according to claim 2 is characterized in that: described location division is the circular bulk that is coaxial with described reversing switch.

4. ratchet spanner according to claim 3 is characterized in that: described keeper is provided with three locating slots, and described keeper one of can optionally make in described three locating slots the location division that holds described reversing switch.

5. ratchet spanner according to claim 4, it is characterized in that: described keeper also is formed with reset portion between described two adjacent locating slots, the location division that the locating slot in the middle of described reset portion can the application of force allows described keeper make automatically in the location division of described reversing switch to be positioned at holds described reversing switch.

6. ratchet spanner according to claim 5 is characterized in that: described control piece is provided with a storage tank at control part with respect to the position of described reversing switch location division, and described keeper is located in the described storage tank.

7. ratchet spanner according to claim 6, it is characterized in that: the two ends of described storage tank are respectively equipped with a joint portion, described keeper two ends form a binding end respectively, described binding end is the joint portion that is incorporated into described control piece, makes described keeper can produce strain along described control piece radial direction in described storage tank.

8. ratchet spanner according to claim 1, it is characterized in that: described two clipping blocks are respectively equipped with a circular limiting section, described limiting section is to extend towards first plane of described head, described pivot end is provided with one first clicking section and one second clicking section parallel to each other with respect to the position of described clipping block, described two clicking sections are to stretch into second storage tank and contact that can be the separately limiting section at corresponding described clipping block, described reversing switch can be optionally one of to move one of in described two clicking sections in described two clipping blocks, reach the meshing relation between described clipping block of control and the described driving body.

9. ratchet spanner according to claim 8 is characterized in that: described control piece is provided with a pivot hole, and described pivot hole is to be set in the driving rod that described driving body protrudes from described head first plane.

10. ratchet spanner according to claim 9 is characterized in that: first plane of described interlock end and described body head is positioned at same plane.