TWM454902U - Commutator ratchet wrench - Google Patents

Description

Reversing ratchet wrench

This creation is about a ratchet wrench, especially a reversing ratchet wrench.

As shown in FIG. 1 , it is a schematic view of a meshing state of a conventional ratchet wrench, which mainly includes a body 100 having a head 101 having a first receiving groove 102 and a second receiving groove. 103 is in the same state, a ratchet wheel 104 is rotatably disposed in the first accommodating groove 102, and the second toothing 105 is received in the second accommodating groove 103, and one end of the toothing 105 is pivotally disposed on the inner wall of the second accommodating groove 103, One end of the elastic body 106 is abutted against the side wall surface of the second accommodating groove 103, and the other end is fastened to the tooth forming 105 so that the toothing 105 is engaged with the ratchet wheel 104, and a control rod 107 is pivoted to the second accommodating portion. In the groove 103, when the lever 107 is rotated, it pushes against a tooth 105, so that the tooth 105 is disengaged from the ratchet 104.

The two teeth 105 of the ratchet wrench are respectively abutted by the two elastic bodies 106. When the control rod 107 is rotated in the reverse direction, the control rod 107 is pushed against one of the teeth 105 to bias the elastic body 106 thereof. The tooth 105 is disengaged from the ratchet 104, and the other tooth 105 is only held by the other elastic body 106 to engage the ratchet 104, so that the tooth 105 cannot be effectively engaged with the ratchet 104. Insufficient degree of meshing often causes the user to need to mobilize the lever 107 again to enable the toothing 105 to fully engage the ratchet 104, so that it is less inconvenient to use; further, if the toothing 105 is not fully engaged with the ratchet 104, the operation is performed. In the force-applying operation, the slippage between the teeth and the teeth is prone to occur, and the force application to the pulling operation cannot be clearly determined. In this long-term, the teeth 105 and the ratchet 104 have the potential to collapse, if During the force application process, once the teeth of the tooth 105 or the ratchet 104 collapse, it is easier to lose the top fulcrum at the moment of the force application, resulting in sudden slippage, which may affect the safety of the operator.

At the same time, the structure of the conventional ratchet wrench is still complicated, and the assembly is also inconvenient, and two elastic bodies 106 similar to the compression spring type are required, and the spring capacity is limited by the space, so that the service life is not long, and the reversal is affected. In addition, if the two elastic bodies 106 cannot be effectively fixed to the inner wall of the second accommodating groove 103, the effect of the ratchet wrench may be affected, and the serious result may be stuck. Thus, the conventional ratchet wrench does. There is considerable room for improvement.

In order to solve the above problems, the present invention discloses a reversing ratchet wrench which is mounted on a reversing member by a single elastic member, so that the first pushing portion and the second pushing portion of the elastic member are disposed on the side of the two ratchet blocks. The edge is used to push a ratchet block to engage the ratchet during the reversing process, and the other ratchet block is resisted by the reversing member and is disengaged from the ratchet.

Therefore, the present invention provides a reversing ratchet wrench, which mainly comprises a body, a ratchet wheel, two ratchet blocks, a reversing member and an elastic member. The main body has a head portion and a handle portion. The head portion extends from one end of the handle portion. The head portion has a first receiving groove and a second receiving groove communicating with each other. The second receiving groove is different from the first receiving groove. The wall surface is provided with a pair of pivoting grooves, and the ratchet wheel is disposed in the first receiving groove in a rotating manner. The peripheral ring of the ratchet wheel is provided with a plurality of ratchet teeth, and the two ratchet blocks are respectively pivoted at one end to the two pivoting slots, and the other end is respectively The toothed portion corresponds to the ratchet teeth; the reversing member is pivotally disposed in the second receiving groove for selectively pushing against a ratchet block thereof, the tooth portion is disengaged from the ratchet ratchet, and the elastic member has a The mounting portion is disposed on the reversing member, and the elastic member respectively extends from the mounting portion to a first pushing portion and a second pushing portion, and is disposed on one side of the two ratchet blocks; The first pushing portion pushes a ratchet block to engage the tooth portion with the ratchet of the ratchet, and the other ratchet block is resisted by the reversing member, and the tooth portion is disengaged from the ratchet of the ratchet .

Therefore, the present invention can achieve the purpose of selectively pushing the two ratchet blocks and the ratchet by using only a single elastic member, and has the advantages of simplified structure and convenient assembly compared with the conventional structure, and further, the elastic member is installed. On the reversing member, the positioning is clear, and the spring is not required to be positioned on the inner wall of the second accommodating groove, thereby avoiding the jamming caused by improper positioning of the spring.

In addition, the reversing member is in the second position or the third position, and the first side surface or the second side surface of the reversing member can abut against the inner side surface of one of the ratchet blocks, thereby facilitating the effective operation of the ratchet block The abutting portion or the second pushing portion abuts, and the tooth portion thereof is effectively engaged with the ratchet of the ratchet wheel to avoid the occurrence of the slipping of the teeth and the teeth which are not engaged.

For the convenience of the description, the central idea expressed in the column of the above novel content is expressed by a specific embodiment. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above.

Please refer to FIG. 2 to FIG. 4 , FIG. 2 is an external view of the creation, FIG. 3 is an exploded view of the creation, and FIG. 4 is a schematic diagram of a partial component of the creation. The reversing ratchet wrench of the present invention comprises a body 10, a ratchet 20, two ratchet blocks 30, a reversing member 40, an elastic member 50 and a cover 60.

The main body 10 has a head portion 11 and a handle portion 12 extending from one end of the handle portion 12. The head portion 11 has a first receiving groove 13 and a second receiving groove 14 communicating with each other. The accommodating groove 13 and the second accommodating groove 14 are open to the two sides of the head portion 11, and the first accommodating groove 13 and the second accommodating groove 14 have a connecting portion 15 on the side of the head portion 11 for the second accommodating. The groove 14 is different from the wall surface of the first accommodating groove 13 and is provided with a pair of pivoting grooves 16 . The head portion 11 has a card slot 17 on the side different from the connecting portion 15 , and the connecting portion 15 is provided with two through holes 18 .

The ratchet 20 is disposed in the first accommodating groove 13 in a rotating manner. The peripheral ring of the ratchet wheel 20 is provided with a plurality of ratchet teeth 21, and the ratchet wheel 20 has an engaging portion 22 at one end for clamping or releasing a sleeve ( Not shown).

The two ratchet blocks 30 are symmetrical in the shape of a block. The two ratchet blocks 30 are disposed in the head portion 11 and are respectively pivoted at one end to the two pivoting slots 16 and at the other end to have a tooth portion 31 corresponding thereto. The ratchet 21 of the ratchet 20 is used.

The reversing member 40 is pivotally disposed on the second receiving groove 14 and is relatively rotatable for selectively pushing a ratchet block 30 thereof so that the tooth portion 31 of the ratchet block 30 is disengaged from the ratchet of the ratchet 20 The reversing member 40 has an operating portion 41 and a column portion 42. The column portion 42 extends perpendicularly from one end of the operating portion 41. A cylindrical sleeve portion 43 is disposed between the column portion 42 and the operating portion 41. The portion 42 is slightly triangular, and has a first side surface 421, a second side surface 422 and an abutting side surface 423. The abutting side surface 423 is connected between the first side surface 421 and the second side surface 422. The first side surface 421 and the second side surface 422 are respectively acutely angled with the abutting side surface 423, and the abutting side surface 423 is arcuate. Further, a screw hole 44 is formed at the end of the column portion 42.

The elastic member 50 is a torsion spring having a mounting portion 51 of at least one turn or more and two extending portions 52 extending from the mounting portion 51 in a straight shape, respectively bent from the extending portion 52 in a vertical direction. a pushing portion 53 and a second pushing portion 54 , the mounting portion 51 surrounds the sleeve portion 43 between the column portion 42 and the operating portion 41 , so that the first pushing portion 53 and the second pushing portion The portion 54 is disposed on one side of one of the two ratchet blocks 30. The elastic portion 50 is a torsion spring type, and the first pushing portion 53 and the second pushing portion 54 have a relative elastic opening and closing capability. When the first pushing portion 53 is away from the second pushing portion 54, the ring diameter of the mounting portion 51 is in an outer state, and when the first pushing portion 53 is close to the second pushing portion 54, the mounting portion 51 is The circle diameter is in a retracted state.

The cover 60 has a through hole 61 at one end and an assembly hole 62 at the other end. The two screws 18 are inserted through the two through holes 18 of the body 10 and screwed to the cover 60 so that the cover 60 is covered in the card slot 17. The member is enclosed in the head portion 11 so that the engaging portion 22 of the ratchet 20 is exposed through the through slot 61, and a screw 80 is passed through the assembly hole 62 and locked to the screw hole 44 of the reversing member 40. The reversing member 40 is positioned, and a spring washer 90 is disposed between the card slot 17 and the cover 60 for the cover 60 to be fastened to the card slot 17 without being loosened.

Referring to FIG. 5, the reversing member of the present invention is located at the first position, and the two ratchet blocks are not meshed with the ratchet. Since the reversing member 40 is in the first position (ie, the state has not been deflected), the two sides of the abutting side surface 423 of the reversing member 40 abut against the two ratchet blocks 30, and the first pushing portion of the elastic member 50 is forced. 53. The second pushing portion 54 is relatively far away, and the mounting portion 51 is formed in an outer tension state, so that the two ratchet blocks 30 are opened, and the tooth portion 31 cannot be engaged with the ratchet teeth 21 of the ratchet wheel 20, so that the ratchet wrench is opposite The head 11 is idling, wherein the first side surface 421 and the second side surface 422 are respectively acutely angled with the abutting side surface 423. When the state is resisted, the two ratchet blocks 30 can be forced to be effectively positioned, which is not easy. Offset.

Continuing to refer to FIG. 6, the reversing member of the present invention is in the second position, and the ratchet can be rotated counterclockwise with respect to the head. When the shifting member 40 is turned to the second position in the clockwise direction, the abutting side surface 423 of the reversing member 40 abuts the position of the ratchet block 30 on the left side of the drawing, just as it abuts against the side surface 423. The side position gradually moves to the center position, and the ratchet block 30 is continuously stopped to keep the ratchet block 30 disengaged from the ratchet 20, and at the same time, since the reversing member 40 is in the dialing, the ratchet block 30 on the right side of the drawing Since the pressing portion 423 is no longer pressed against the side surface 423, the mounting portion 51 is gradually changed from the outer tension state to the retracted state, and the stored elastic force is released, so that the second pushing portion 54 pushes the ratchet by the elastic force. The block 30 is swayed to the left so that the ratchet block 30 is engaged with the ratchet 20, and since the second side surface 422 of the reversing member 40 abuts against the inner side of the ratchet block 30, the spine is facilitated. The tooth block 30 is abutted by the second pushing portion 54, and the tooth portion 31 is effectively engaged with the ratchet teeth 21 of the ratchet wheel 20, so as to avoid the occurrence of the slipping of the teeth and the teeth which are not engaged, so that the ratchet wheel 20 can only counterclockwise. The direction is rotated, in other words, the ratchet wrench can drive the sleeve clockwise.

Furthermore, the elastic force of the mounting portion 51 is released into a torsional type, and in a limited space, the elastic releasing effect is better than that of the conventional structure, which facilitates the commutation and tooth engagement, and at the same time improves the service life. In the present invention, only a single elastic member 50 can achieve the effect of reversing, which not only simplifies the structure, but also makes the assembly quicker and more convenient. At the same time, the elastic member 50 is positioned on the reversing member 40, and the positioning thereof is clear, and the second capacity is not needed. Any other positioning structure is provided in the slot 14 to avoid the situation that the conventional structure spring is not well positioned and the ratchet is stuck.

Please refer to FIG. 7 , which is a schematic diagram of the reversing member of the present invention in a third position, showing that the ratchet can rotate clockwise relative to the head. As described above, it is convincing that the operator can reverse the direction of the shifting member 40 to the third position, so that the abutting side surface 423 of the reversing member 40 abuts against the ratchet block 30 on the right side of the drawing, so that the ratchet block The relative ratchet 20 is disengaged, and the first pushing portion 53 pushes the ratchet block 30 by the elastic force, and the inner side surface of the ratchet block 30 is abutted by the first side surface 421 of the reversing member 40 to make the tooth The portion 31 is effectively engaged with the ratchet 21 of the ratchet 20 such that the ratchet 20 can only rotate in a clockwise direction, in other words, the ratchet wrench can drive the sleeve counterclockwise.

Referring to FIG. 8, which is another preferred embodiment of the present invention, an enlarged schematic view of the ratchet block, the reversing member and the elastic member is shown. In the embodiment, the side edges of the two ratchet blocks 30 are respectively provided with positioning slots 32 for facilitating the first pushing portion 53 and the second pushing portion 54 for better positioning effect in the reversing action. Therefore, the first pushing portion 53 and the second pushing portion 54 are less likely to slip against the side of the ratchet block 30.

In summary, the present invention utilizes a single elastic member to selectively push a ratchet block in the reversing direction to engage the ratchet block with the ratchet wheel, and has the advantages of simple structure and convenient assembly.

The elastic member of the present invention is a torsion spring, which has a better torque release in a limited space environment than a spring of a conventional ratchet wrench, which can help the reversal and the tooth meshing accuracy, and at the same time Can extend the life.

The above embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. All kinds of modifications or changes that are not in violation of the spirit of this creation are all in the scope of this creative intention.

(Learn part)
100‧‧‧ body
102‧‧‧First accommodating slot
104‧‧‧ratchet
106‧‧‧ Elastomers (part of this creation)
101‧‧‧ head
103‧‧‧Second accommodating slot
105‧‧‧ teeth
107‧‧‧Control lever
10‧‧‧ Ontology
11‧‧‧ head
12‧‧‧ handle
13‧‧‧First accommodating slot
14‧‧‧Second accommodating slot
16‧‧‧ pivot slot
18‧‧‧Perforation
21‧‧‧ ratchet
30‧‧‧ ratchet block
32‧‧‧ positioning slot
41‧‧‧Operation Department
421‧‧‧ first side
423‧‧‧Affinity
44‧‧‧ screw holes
51‧‧‧Installation Department
53‧‧‧First push
60‧‧‧ cover
62‧‧‧Assembled holes
80‧‧‧ screws
15‧‧‧Connecting Department
17‧‧‧ card slot
20‧‧‧ratchet
22‧‧‧Connecting Department
31‧‧‧ teeth
40‧‧‧Reversing parts
42‧‧‧ Column
422‧‧‧second side
43‧‧‧Setting Department
50‧‧‧Flexible parts
52‧‧‧Extension
54‧‧‧second push
61‧‧‧through slot
70‧‧‧ screw
90‧‧‧Spring washers

[Fig. 1] is a schematic view of the engagement state of a conventional ratchet wrench; [Fig. 2] is an external view of the creation; [Fig. 3] is an exploded view of the creation; [Fig. 4] is a part of the creation Schematic diagram of the component; [Fig. 5] is a schematic diagram of the reversing member in the first position, showing that the two ratchet blocks are not engaged with the ratchet; [Fig. 6] The reversing member of the present invention is in the second position, A schematic diagram of the ratchet wheel rotating counterclockwise with respect to the head; [Fig. 7] is a schematic view of the reversing member of the present invention in a third position, showing that the ratchet can rotate clockwise relative to the head; and [Fig. 8] is a creation of the present In another preferred embodiment, an enlarged schematic view of the ratchet block, the reversing member and the elastic member is shown.

10‧‧‧ Ontology

11‧‧‧ head

16‧‧‧ pivot slot

20‧‧‧ratchet

21‧‧‧ ratchet

22‧‧‧Connecting Department

30‧‧‧ ratchet block

31‧‧‧ teeth

40‧‧‧Reversing parts

421‧‧‧ first side

422‧‧‧second side

423‧‧‧Affinity

50‧‧‧Flexible parts

51‧‧‧Installation Department

53‧‧‧First push

54‧‧‧second push

Claims (10)

A reversing ratchet wrench includes: a body having a head and a handle extending from one end of the handle, the head having a first receiving groove and a second connecting end a accommodating groove, wherein the second accommodating groove is different from the wall surface of the first accommodating groove; a ratchet wheel is rotatably disposed in the first accommodating groove, and the peripheral ring of the ratchet ring is disposed a plurality of ratchet teeth; the two ratchet blocks are respectively pivoted at one end to the two pivoting slots, and the other end has a tooth portion corresponding to the ratchet teeth; a reversing member is pivotally disposed at the second volume a slot for selectively pushing against a ratchet block to disengage the tooth portion from the ratchet of the ratchet; and an elastic member having a mounting portion disposed on the reversing member, the elastic member being mounted therefrom a first pushing portion and a second pushing portion are respectively disposed on one side of the two ratchet blocks; when the turning member is turned, the first pushing portion pushes one of the first pushing portions a ratchet block having its teeth engaged with the ratchet of the ratchet, and the other ratchet block being resisted by the reversing member The ratchet teeth of the ratchet opening. The reversing ratchet wrench of claim 1, wherein the reversing member has an operating portion and a column portion, the column portion extending perpendicularly from one end of the operating portion, and the mounting portion of the elastic member is sleeved on the column portion on. The reversing ratchet wrench of claim 2, wherein the column portion and the operating portion have a cylindrical sleeve portion for the mounting portion to surround. The reversing ratchet wrench of claim 2, wherein the column portion of the reversing member has a first side surface, a second side surface, and an abutting side surface connected to the first side surface and the second side Between the faces, the first side surface and the second side surface are respectively acutely angled with the abutting side surface. The reversing ratchet wrench of claim 4, wherein when one of the ratchet blocks is disengaged from the ratchet, the side of the other ratchet block abuts the first side or the second side. The reversing ratchet wrench of claim 1, wherein the first ejector portion and the second urging portion and the mounting portion respectively have a straight extension. The reversing ratchet wrench of claim 6, wherein the first ejector portion and the second urging portion are respectively bent and extended from the two extension portions in a vertical direction. The reversing ratchet wrench of claim 1, wherein the two ratchet blocks are respectively provided with a positioning groove on one side for receiving the first pushing portion and the second pushing portion. The reversing ratchet wrench of claim 1, wherein the elastic member is a torsion spring. The reversing ratchet wrench of claim 1, further comprising a cover having a card slot, the cover being disposed on the card slot.