TWI650205B - Ratchet wrench toggle - Google Patents

Abstract

A ratcheting wrench, the ratchet of the ratchet wrench can change the direction of rotation by the action of a ratchet block and a dialing device, the dialing device comprising a dialing member and a spring and a linking member disposed therein; The linkage member protrudes into the top slot of the ratchet block by the elastic force of the spring; the dial member includes a top block, and each of the top block has a top corner; the dial member When being pushed to the left or right, a thrust is applied to the ratchet block through the top corner, ensuring that the ratchet block follows the dial with excellent responsiveness in the change of orientation.

Description

Ratchet wrench toggle

The present invention relates to a ratchet wrench and, more particularly, to a toggle device for a reversible ratchet wrench.

For example, in the eighth, ninth, and tenth drawings, a conventional reversible ratchet wrench includes a ratchet wheel 2 and a ratchet block 3 disposed inside the wrench head 1, and a switching unit 4 is used to control the ratchet block. 3. The switching unit 4 generally comprises a dial 5 and a spring 6 and a linkage 7 provided therein. The linking member 7 is protruded from the outside of the dialing member 5 by the elastic force of the spring 6 and protrudes into the top pocket 8 of the ratchet block 3. The left and right dialing of the dial 5 causes a corresponding change in the direction and position of the linkage 7 and the ratchet block 3, thereby changing the direction of rotation of the ratchet 2.

The above conventional examples have the following problems:

First, when the dial 5 is rotated, whether the linkage 7 can successfully move the ratchet block 3, the key is the spring 6 and its elastic force. In the conventional example, when the spring 6 becomes the main force for the force and the force applied, the problem of elastic fatigue is liable to occur. When the force value of the spring 6 is weakened, the linkage member 7 cannot provide a suitable top force for the ratchet block 3. As can be seen from the eighth to the tenth figures, when the dial member 5 is rotated from left to right, the linkage member 7 does not succeed in turning the ratchet block 3 from the left to the right. The dial member 5 only slides along the top slot 8 of the ratchet block 3, the switching unit 4 is ineffective idle, and the ratchet commutation function is disabled.

Secondly, when the force value of the spring 6 is weakened and the linkage member 7 is unable to push the ratchet block 3, the ratchet block 3 cannot be effectively restrained by the linkage member 7, and the force or reaction force of the operation ratchet wrench may be The ratchet 2 is transmitted to the ratchet block 3, so that the ratchet wheel 2 causes the ratchet block 3 to be improperly displaced, and the ratchet wrench may suddenly change the direction of the misalignment, so that the operation of the ratchet wrench cannot be effectively controlled. Direction and direction of swing reset.

In order to solve the above problems, the present invention proposes a structural solution that ensures that the linkage member effectively actuates the ratchet block.

The ratchet wrench includes a ratchet wheel and a ratchet block disposed on a head of the wrench, the ratchet and the ratchet of the ratchet block meshing with each other; the dialing device includes a dialing member in a swinging space of the wrench head and a spring and a linking member disposed inside the dialing member; the linking member is protruded from the rotating member by the elastic force of the spring and protrudes into the sliding member a top groove of the ratchet block; wherein the dialing device further comprises a top structure; the top structure comprises a contact angle formed on each side of the top groove, and is formed on the dial a top block having a top corner on each side of the top block; when the dial is toggled to the left or right, the trigger is applied to the top slot through the top corner The left side wall, the right side wall and the contact angle are further transmitted to the ratchet block, and when the dial member is swung to the middle of the slot wall of the linking member pushing the top groove, the top block does not contact the ratchet Piece.

The effect of the invention is that the force of the dialing member is transmitted to the left and right walls of the top channel and the contact angle through the top corner to be transmitted to the ratchet block.

When the dial member is turned, two thrusts act on the ratchet block, wherein a thrust is applied to the ratchet block by the linking member through the slot wall of the top slot, and the other thrust is The top block is applied to the ratchet block through the left side wall, the right side wall of the top channel and the contact angle. Two A thrust acts on the ratchet block to ensure that the ratchet block follows the dial member with excellent responsiveness in the change of the position, and the ratcheting function of the ratchet wrench is ensured.

When the top block pushes the ratchet block on one side, the other side of the top block does not interfere with the ratchet block to ensure that the lateral thrust of the top block is completely applied to the ratchet The side of the block.

The invention specifically disperses the force of the spring, delays the occurrence of elastic fatigue, and maintains its desired elastic value for a long period of use.

[Prior technology]

1‧‧‧wrench head

2‧‧‧ratchet

3‧‧‧ ratchet block

4‧‧‧Switch unit

5‧‧‧WD parts

6‧‧‧ Spring

7‧‧‧ linkages

8‧‧‧Top trough

[this invention]

10‧‧‧wrench head

11‧‧‧ratchet space

12‧‧‧ ratchet

13‧‧‧ tooth space

14‧‧‧ ratchet block

15‧‧‧Swing space

16‧‧‧Top trough

161‧‧‧left wall

162‧‧‧ right wall

20‧‧‧Toggle device

21‧‧‧WD parts

22‧‧‧ Spring

23‧‧‧ linkages

24‧‧‧Pole

30‧‧‧Top structure

31‧‧‧Top block

32‧‧‧Top corner

33‧‧‧Contact angle

40‧‧‧Closed

41‧‧‧ buckle

The first figure is an exploded perspective view of the ratchet wrench of the present invention.

The second figure is one of the combined sectional and action schematic diagrams of the ratchet wrench of the present invention.

The third figure is the second schematic diagram of the combined section and action of the ratchet wrench of the present invention.

The fourth figure is the third part of the combined section and action diagram of the ratchet wrench of the present invention.

The fifth figure is the fourth part of the combined section and action diagram of the ratchet wrench of the present invention.

The sixth figure is the fifth of the combined section and action diagram of the ratchet wrench of the present invention.

The seventh figure is an enlarged view of the circled area of the third figure.

The eighth figure is one of the sectional view and action schematic diagram of the conventional reversible ratchet wrench.

The ninth figure is a cross-sectional view and a schematic diagram of the action of the conventional reversible ratchet wrench.

The tenth figure is a cross-sectional view and a schematic diagram of the action of the conventional reversible ratchet wrench.

For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. 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.

As shown in the first and second figures, the reversible ratchet wrench of the present invention comprises a ratchet 12 assembled in a ratchet head 11 in a ratchet head 11 and a ratchet block disposed in a tooth space 13 of the wrench head 10. 14. The ratchet 12 and the ratchet teeth of the ratchet block 14 mesh with each other.

The wrench head 10 also includes a toggle device 20. The dialing device 20 includes a dialing member 21 and a spring 22 and a linking member 23 disposed therein. The dial member 21 is rotatably positioned in a swivel space 15 of the wrench head 10, and the dial member 21 has a lever 24 located outside the wrench head 10 for user contact. The dial member 21 is dialed, and the dial member 21 is turned to the left or right in the swing space 15 by the user's toggle (as shown in the second to sixth figures). The linkage member 23 is protruded from the outside of the dial member 21 by the elastic force of the spring 22 and protrudes into a top slot 16 of the ratchet block.

As with the third and seventh figures, the ratchet wrench further includes a top sill structure 30. The top cymbal structure 30 includes a top cymbal block 31 formed on the dial member 21, and each of the top cymbal blocks 31 has a top corner 32 on each side. The top raft structure 30 further includes a contact angle 33 formed in a circular arc shape formed on both sides of the top sill groove 16.

As shown in the second to sixth figures, the left and right toggle of the toggle member 21 causes a corresponding change in the direction and position of the linkage member 23 and the ratchet block 14, thereby changing the direction of rotation of the ratchet 12. According to the view direction and the order of the second to sixth figures, the dial 21 is turned from left to right, and vice versa. As shown in the second figure, in a stationary state, the linkage member 23 pushes the left side wall 161 of the top grooving groove 16, the ratchet block 14 is located on the left side of the tooth block space 13, and the ratchet 12 is rotatable clockwise. As shown in the third and seventh figures, the initial direction of the dial 21 being turned to the right, the top corner 32 of the right side of the top block 31 is pushed against the right side wall 162 of the top pocket 16, the ratchet block 14 has been adapted. Pushing the top has moved to the right. As shown in the fourth figure, the dial member 21 continues to be turned to the right, the linking member 23 slides along the slot wall of the top slot, and the top corner 32 on the right side pushes the contact angle 33 on the right side. The ratchet block 14 conforms to the top of the push Move right. As shown in the fifth figure, when the dial member 21 continues to be dialed to the middle of the slot wall of the linkage member 23 which is pushed up by the linkage member 23, the top jaw block 31 does not contact the ratchet block 14. As shown in the sixth figure, when the dial 21 is turned to the right, the linkage 23 pushes the right side wall 162 of the top pocket 16, and the ratchet block 14 is successfully moved to the right side of the block space 13, which The ratchet 12 is rotatable counterclockwise.

When the dial member 21 is turned, two urging forces act on the ratchet block 14, wherein a thrust is applied to the ratchet block 14 by the elastic force of the spring 22 through the linkage member 23, and the other The urging force is applied to the ratchet block 14 by the top sill 31 passing through the left side wall 161 of the top sill 16 , the right side wall 162 and the contact angle 33 . Two thrusts act on the ratchet block 14, ensuring that the ratchet block 14 follows the toggle member 21 with excellent responsiveness in the change of orientation, ensuring that the ratcheting function of the ratchet wrench 12 is achieved.

Referring to the second to sixth figures, when the top block 31 pushes the ratchet block 14 on one side, the other side of the top block 31 and the ratchet block 14 do not interfere with each other to ensure the The lateral thrust of the top block 31 is completely applied to the side of the ratchet block 14.

In the present invention, the top block 31 applies lateral thrust to the ratchet block 14 through the left side wall 161, the right side wall 162 of the top sill 16 and the contact angle 33. This design disperses the spring 22 In the case of force, the spring 22 of the present invention is a main force applying force member as described in the non-conventional example. Therefore, the delay time of the elastic fatigue of the present invention is maintained, and the elastic value thereof should be maintained for a long period of use. . As can be seen from the second, fifth and sixth figures, when the dial 21 is rotated from left to right and the ratchet block 14 is successfully moved from left to right, the distance between the top end of the top block 31 and the ratchet block 14 occurs. Obvious change, in order to explain this change, the horizontal line L1 passes through the top end of the linking member 23, and the horizontal line L2 passes through the top end of the top cymbal block 31. In the second figure, the distance between L1 and L2 is d1, and in the fifth figure, L1 and The spacing of L2 is d2, and the spacing between L1 and L2 in the sixth figure is d3. It can be inferred from the change of d1, d2 and d3. The compression length of the spring 22 will vary, indicating that the spring 22 has a good spring performance in the present invention. The present invention specifically addresses the first problem of the conventional example.

In addition, when the spring force of the spring 22 is maintained, the linkage member 7 can effectively lie against the ratchet block 14 to maintain the position of the ratchet block 14; the force or reaction force of the operation ratchet wrench cannot be transmitted through the ratchet wheel 12 To the ratchet block 14, the ratchet wrench does not cause a problem of improper reversal, so that the working direction and the direction of the swing reset can be effectively controlled when the ratchet wrench is operated. The present invention specifically addresses the second problem of the conventional example.

Claims (1)

A ratcheting wrench, the ratcheting wrench comprising a ratchet wheel and a ratchet block disposed on a head of the wrench, the ratchet and the ratchet of the ratchet block meshing with each other; the dialing device comprises a dialing member in a swinging space of the wrench head and a spring and a linking member disposed inside the dialing member; the linking member is protruded from the rotating member by the spring force of the spring and extends into the ratchet a top groove of the block; wherein the dialing device further comprises a top structure; the top structure comprises a contact angle formed on each side of the top groove, and a shape formed on the dial a top block, each of which has a top corner on each side; when the dial is toggled to the left and right, the thrust is applied to the left side of the top slot by the top corner The wall, the right side wall, and the contact angle are in turn transmitted to the ratchet block, and the top block does not contact the ratchet block when the toggle member is dialed to the middle of the slot wall of the linkage member that pushes the top channel.