TWI513550B - Ratchet wrench - Google Patents

Description

Ratchet wrench

The invention relates to wrenches, and in particular to a ratchet wrench.

Generally, the conventional ratchet wrench is provided with a multi-angle slot through, for example, a ratchet wheel, so that a sleeve or the like can be inserted into the cassette, so that the user can operate the wrench to drive the sleeve or the part, and screw or disassemble. The ratchet wrench as described in TW M449061 further comprises a device having a sleeve clamping function, and the ratchet wrench as described in TW M478573 further comprises a device for replacing the function of the drive member. However, the ratchet wrench as described above generally includes a mechanism for controlling the direction of rotation of the ratchet member, the mechanism device including a lever for external operation, for the operation of the lever The utility model can generate at least one type of paragraph and has the function of positioning. The mechanism device utilizes a spring ball device and at least one groove to achieve the purpose, and for the purpose of the use, it must be utilized inside the wrench body. The drilling method produces an inner hole for assembling the spring ball device, and the processing process is very difficult, costly, and difficult to assemble. This can not improve productivity, but in reality it is necessary to make further improvements.

Therefore, it is necessary to provide a novel and progressive ratchet wrench to solve the above problems.

The main object of the present invention is to provide a ratchet wrench which is capable of generating different switching modes through a fixed cover body and a switching assembly, and the cover body and the positioning structure can be formed in one pass through the process without secondary processing. Saving cost and increasing production efficiency, the cover body further includes a recess for the top pin to be conveniently assembled and positioned through the guide, thereby increasing assembly efficiency and increasing productivity.

In order to achieve the above object, the present invention provides a ratchet wrench, comprising: a body provided with a receiving groove; a driving member disposed in the receiving groove and having a first latching portion along the outer peripheral surface; a braking member a second latching portion that is engaged with the first latching portion, the second latching portion can limit the direction of rotation of the driving member; a switching component is movable The first body of the body is disposed at the first end of the cavity and the second end of the body is extended for operation; a resilient member is disposed at one end of the switch assembly And the other end and the braking member abut against each other, and the top of the braking member faces the first latching portion; a cover sleeve is sleeved on the driving member and is fixedly disposed on the driving member without relative rotation One side of the body; a positioning mechanism includes a first positioning portion and a second positioning portion, wherein one of the first and second positioning portions is disposed on the switching component, and the other is disposed on the cover body, the first A positioning portion includes a first positioning structure and a second positioning structure, and the second positioning portion includes The positioning member, by adjusting the switch assembly enables the positioning member for positioning and holding the position of the brake member and the first engaging portion engaging with each of the first or the second positioning structure.

1‧‧‧ Ratchet Wrench

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧fasteners

20‧‧‧ Drives

21‧‧‧ First card department

22‧‧‧Operation Department

30‧‧‧Brakes

31‧‧‧Second Card Department

51‧‧‧First elastic parts

52‧‧‧

521‧‧‧ sets of feet

522‧‧‧Block arm

60‧‧‧ cover

61‧‧‧ 挡缘

62‧‧‧ dimples

70‧‧‧ Positioning mechanism

71‧‧‧First Positioning Department

32‧‧‧ recess

40‧‧‧Switching components

41‧‧‧First end

411‧‧‧First hole

412‧‧‧Second hole

42‧‧‧second end

43‧‧‧ first component

44‧‧‧Second component

45‧‧‧ jack

46‧‧‧ pins

50‧‧‧Bounce component

711‧‧‧First positioning structure

712‧‧‧Second positioning structure

713‧‧‧First groove

714‧‧‧second groove

72‧‧‧Second Positioning Department

721‧‧‧ Positioning parts

722‧‧‧Second elastic parts

723‧‧‧Post-up

P1‧‧‧ first position

P2‧‧‧ second position

1 is a schematic view of a preferred embodiment of the present invention.

2 is an exploded view of a preferred embodiment of the present invention.

3 is a schematic view showing the state of a preferred embodiment of the present invention.

4 is a schematic view of another state of a preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to FIGS. 1 to 4, there is shown a preferred embodiment of the present invention. A ratchet wrench 1 of the present invention includes a body 10, a driving member 20, a braking member 30, a switching assembly 40, and a spring bias. The assembly 50, a cover 60 and a positioning mechanism 70.

The body 10 is provided with a receiving groove 11 , and the body 10 can have a long handle shape, for example, and the receiving groove 11 is provided at at least one end. Further, the body 10 and the receiving groove 11 can be made of metal, for example. The material (for example, a metal material such as aluminum alloy or iron) may be molded by hot melt casting or forging.

The driving member 20 is disposed in the receiving groove 11 and is provided with a first latching portion 21 along the outer peripheral surface. Further, the driving member 20 can be processed by hot forging or cutting, for example, using a material of carbon steel. The first latching portion 21 is formed in the embodiment. The first latching portion 21 can have a plurality of external teeth, for example, and the driving member 20 includes an actuating portion 22. In this embodiment, the actuating portion 22 is activated. The portion 22 can be, for example, a polygonal through hole. In other possible embodiments, the actuating portion 22 can also be a convex portion having a polygonal shape, and the actuating portion 22 can be used, for example, with a nut or a sleeve. Assembly of parts.

The brake member 30 is disposed in the receiving slot 11 and is provided with a second latching portion 31 that is engaged with the first latching portion 21. Further, the second latching portion 31 corresponds to the second latching portion 31. The shape of the first latching portion 21 is, for example, a plurality of external teeth, and the second latching portion 31 is permeable. For example, hot forging, cutting processing, etc., and the brake member 30 is preferably made of composite carbon steel with high material strength (for example, chrome molybdenum alloy steel) to make the material more durable, but in other possible embodiments. The brake member can be, for example, in the form of a roller. The first latch portion can be, for example, a radially protruding portion, and the roller can abut against the radial protrusion to make the second latch. The portion 31 can limit the direction of rotation of the driving member 20, and more specifically, when the braking member 30 is pushed by an external force, for example, and the second locking portion 31 and the first locking portion 21 are mutually engaged. When the driving member 20 is braked by the braking member 30, the rotation of the driving member 20 is restricted.

The switching assembly 40 is movably disposed on the body 10, and includes a first end portion 41 disposed in the housing 11 and at least one second end portion 42 extending outside the body 10 for operation. For example, for example, The switching component 40 can include a first member 43 and a second member 44. The first member 43 is disposed in the receiving slot 11 and is provided with two insertion holes 45. The second member 44 is provided with two pins 46. The second member 44 is disposed in the body 10 and the two pins 46 are inserted into the two insertion holes 45. More specifically, at least one of the first member 43 and the second member 44 can be disposed. There is a second end portion 42 that can be operated via the outside, and the second end portion 42 can be, for example, a knob, a lever or the like. In other possible embodiments, the switching component 40 may also be integral, and similarly, the first end portion 41 that can be worn through the body 10 and extended outside the body 10 is operable. Second end portion 42.

One end of the elastic member 50 is disposed at the first end portion 41 of the switching assembly 40, and the other end abuts against the braking member 30, and the braking member 30 is pivoted toward the first locking portion 21, For example, the first end portion 41 of the switching assembly 40 is radially provided with a first through hole 411. The resilient member 50 includes a first elastic member 51 and a resisting member 52. The first elastic member 51 is provided. For example, it may be a coil spring, and the abutting block 52 includes a set of feet 521 and is extended to be located in the sleeve. The first elastic member 51 is disposed in the first hole 411 and is sleeved on the sleeve 521. The second arm 522 is slidably disposed on the switch assembly 40. The first elastic member 51 is abutted between the first hole 411 and the abutting block 52. The abutting block 52 passes through the top of the first elastic member 51 to abut the braking member. 30. The brake member 30 and the first latch portion 21 are engaged with each other. Further, the switching assembly 40 can have, for example, two holes, and the second arm 522 is slidably assembled to the switch assembly 40. In the two hole portions, when the switching assembly 40 is rotated by, for example, an external operation, the resisting block 52 can be interlocked with the switching assembly 40, so that the direction of the abutting block 52 against the braking member 30 can be changed. More specifically, the brake member 30 can be provided with, for example, a recess 32 such that the abutment 52 can be restrained against the recess 32.

The cover body 60 is sleeved on the driving member 20 and fixedly disposed on one side of the body 10 in a rotationally fixed manner. For example, the cover body 60 can be consistent with the driving member 20, for example. The hole has a contour corresponding to the outer space of the cavity 11, so that the cover body 60 can be engaged with the driving member 20 and the body 10 to achieve non-rotational purpose.

The positioning mechanism 70 includes a first positioning portion 71 and a second positioning portion 72. One of the first and second positioning portions 71, 72 is disposed on the switching assembly 40, and the other is disposed on the cover 60. The first positioning portion 71 includes a first positioning structure 711 and a second positioning structure 712. The second positioning portion 72 includes a positioning component 721. The positioning component 721 can be coupled to the first component by adjusting the switching component 40. Or the second positioning structures 711, 712 are positioned to each other and maintain the position of the braking member 30 with the first latching portion 21. For example, in the embodiment, the switching component 40 is radially disposed. The second accommodating member 721 includes a second elastic member 722 and a top pin 723. The second elastic member 722 can be, for example, a coil spring and one end is disposed in the second recess 412 at the other end. The top pin 723 abuts, the first and second positioning structures 711, 712 The first and second positioning structures 711, 712 are respectively a first groove 713 and a second groove 714, and the top pin 723 is selectively positionable on the periphery of the cover 60. In the first or second recesses 713, 714, it is worth mentioning that the cover body 60 and the first and second positioning structures 711, 712 can be formed once by a process such as powder metallurgy, and no need to go through two Sub-processing, saving costs and increasing production efficiency.

In this embodiment, when the switching component 40 is switched to a first position P1, the top pin 723 is positioned, for example, in the first positioning structure 711, and the braking member 30 is abutted by the abutting block 52 and The driving members 20 are mutually braked, for example, in a first direction (such as the direction of the arrow in FIG. 3), so that the driving member 20 cannot be rotated in the first direction. When the switching assembly 40 is switched to a second position P2, the top portion The pin 723 is positioned, for example, in the second positioning structure 712, and the braking member 30 is abutted against the abutting block 52 and brakes with the driving member 20, for example, in a second direction (in the direction of the arrow in FIG. 4). The drive member 20 is not rotatable in the second direction.

Preferably, the cover body 60 is further provided with a retaining edge 61. The retaining edge 61 is radially protruded along the periphery of the cover body 60. The retaining edge 61 is located on the opposite outer side of the top pin 723 and overlaps. The retaining edge 61 is used to prevent the top pin 723 from jumping out of the body 10, and the retaining edge 61 also has a certain degree of dustproof effect, preventing external dust, sand and other debris from entering the ratchet wrench. 1 Internal and affect the organization's actions. In addition, the cover 60 can also be provided with a recess 62. The recess 62 is recessed between the first and second recesses 713, 714 by a surface of the cover 60. The recess 62 communicates with the first portion. The first recesses 713, 714 are provided for use in the assembly process, and the top pins 723 are conveniently assembled to the first positioning portion through the guiding of the dimples 62. 71, increase assembly efficiency and increase production capacity. The ratchet wrench 1 further includes a fastener 12, and the fastener 12 can be, for example, a C-shaped buckle, and the fastener 12 is fastened to the core. The body 10 and the cover 60 and the driving member 20 are fixed to the body 10.

In summary, the ratchet wrench of the present invention generates positioning effects of different switching modes through the fixed cover body and the switching component, and the cover body and the positioning structure can be formed in one process through the process, without secondary processing, saving Cost, increase production efficiency, the cover body further includes a recess for the top pin to be conveniently assembled and positioned through the guide, thereby increasing assembly efficiency and increasing productivity.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also an unprecedented innovative structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law, and is filed according to law, and please The bureau will review it early and give it affirmation.

10‧‧‧ Ontology

11‧‧‧ 容容

12‧‧‧fasteners

20‧‧‧ Drives

21‧‧‧ First card department

22‧‧‧Operation Department

30‧‧‧Brakes

31‧‧‧Second Card Department

32‧‧‧ recess

40‧‧‧Switching components

41‧‧‧First end

411‧‧‧First hole

412‧‧‧Second hole

42‧‧‧second end

43‧‧‧ first component

44‧‧‧Second component

45‧‧‧ jack

46‧‧‧ pins

50‧‧‧Bounce component

51‧‧‧First elastic parts

52‧‧‧

521‧‧‧ sets of feet

522‧‧‧Block arm

60‧‧‧ cover

61‧‧‧ 挡缘

62‧‧‧ dimples

70‧‧‧ Positioning mechanism

71‧‧‧First Positioning Department

711‧‧‧First positioning structure

712‧‧‧Second positioning structure

713‧‧‧First groove

714‧‧‧second groove

72‧‧‧Second Positioning Department

721‧‧‧ Positioning parts

722‧‧‧Second elastic parts

723‧‧‧Post-up

Claims (5)

A ratchet wrench includes: a body having a receiving groove; a driving member disposed in the receiving groove and having a first latching portion along the outer peripheral surface; a braking member disposed in the receiving slot and provided with a a second latching portion that is engaged with the first latching portion, the second latching portion is configured to limit a rotation direction of the driving member; a switching component is movably disposed on the body, and includes a a first end portion of the receiving cavity and at least one second end portion extending from the outside of the body for operation; the switching assembly is radially provided with a second hole; a resilient member, one end of which is disposed in the switching assembly The one end portion and the other end are in contact with the braking member, and the braking member is elastically facing the first locking portion; a cover body is sleeved on the driving member and fixedly disposed in a non-rotating manner On the side of the main body, a positioning mechanism includes a first positioning portion and a second positioning portion, the first positioning portion includes a first positioning structure and a second positioning structure, and the second positioning portion includes a positioning a positioning component comprising a second elastic member and a top pin, the second elastic member One end is disposed in the second hole and the other end is in contact with the top pin, and the first and second positioning structures are disposed on a lateral periphery of the cover body and open in a radial direction, and the first and second positioning structures respectively a first groove and a second groove, the top pin is selectively positioned in the first or second groove, the cover body is further provided with a retaining edge, and the retaining edge is along a circumference of the cover body Protruding, the retaining edges are located on opposite sides of the top pin and overlap each other, and the adjusting component can adjust the positioning component to position the first or second positioning structure and hold the braking component and the first card The position of the internal phase card. The ratchet wrench of claim 1, wherein the switching assembly comprises a first member and a second The second member is provided with two pins, the second member is disposed on the body, and the two pins are inserted into the two sockets. The ratchet wrench of claim 1, wherein the switching assembly is radially provided with a first hole, the ball-fitting assembly includes a first elastic member and a resisting block, the abutting block includes a set of legs and extends The first arm member is disposed in the first hole and is sleeved on the leg. The second arm is slidably disposed on the switch assembly. The ratchet wrench of claim 1, wherein the cover body is further provided with a recess, the recess is recessed between the first and second recesses by a surface of the cover, and the recess communicates with the recess First and second grooves. The ratchet wrench of claim 1, further comprising a fastener that is fastened to the body and fixes the driving member to the body.