TWI511849B - Auxiliary tool for timing gear - Google Patents

Description

Timing pulley auxiliary tool

The present invention relates to a tool, and more particularly to an auxiliary tool for detaching or locking a timing pulley with a wrench.

See, for example, "Movable jaw type holding device", which includes a handle 11 having a fixed jaw member 12 at one end and a stud 121 on the end side of the fixed jaw member 12; a movable jaw member 20, one end is pivotally connected to the handle 11 to correspond to the stud 121, and can be pivoted relative to the fixed jaw member 12, the other end side is provided with a further protrusion 221, and an elastic member 30 is disposed on the handle 11 and Between the movable jaw members 20, the elastic members 30 often keep the movable jaw members 20 relatively far from the fixed jaw members 12, thereby restricting the rotation of the timing pulleys 40, 50 during the disassembly operation for the wrench to It is loose and can be applied to timing pulleys 40 and 50 of different sizes.

As shown in the seventh figure of the foregoing patent, the fixed jaw member 12 and the movable jaw member 20 also have protrusions 14, 23 on the other side thereof, so that the tool can be used for the front and back operations, but the timing pulley 40 is installed. At 50 o'clock, the tool must be operated on the reverse side because the wrenches 42 and 52 are locked in a clockwise manner, and the elastic member 30 often keeps the movable jaw member 20 and the fixed jaw member 12 in an open state. In fact, it is not effective to abut on the side of the spoke 44. Accordingly, the disassembly or locking operation can only change the operating surface of the tool, which is not convenient in use.

Furthermore, another stop tool is commercially available, as shown in FIG. 1 and FIG. 2, which includes a body 1 having a stop 2 at one end and a chute 3 on the body 1 in the chute 3. A stopper 4 is disposed, and the stopper 4 is fixed to any position of the chute 3 by a rotation locking manner, so that the stopper 2 and the stopper 4 abut against the peripheral recess 6 of the timing pulley 5, In order to fix the timing pulley 5, when the wrench 7 is attached and detached, it does not rotate with the central screw 8.

The above-mentioned stop tool can be operated on one side to cooperate with the wrench 7 to disassemble or install the timing pulley 5, but when the different sizes of the timing pulley 5 are encountered, the stopper 4 must be loosened and rotated. It is also inconvenient to use to adjust the distance relative to the stop 2 tightly.

In order to solve the above problems, the present invention discloses an auxiliary tool for a timing pulley which can be fitted to a timing pulley of different outer diameter dimensions and can be easily disassembled or locked with a wrench without the need for a turning operation.

In order to solve the foregoing problems, the present invention provides an auxiliary tool for a timing pulley for detaching or locking a timing pulley with a wrench, the auxiliary tool comprising a receiving member, a movable member and a handle. The receiving member has a retaining post at one end and a sliding slot at the other end. The movable member is slidably disposed in the sliding slot in a reciprocating manner, and the movable member has a stop at one end thereof, and the retaining post is adapted to the peripheral recess of the timing pulley. The timing pulley is not rotated in the driving direction of the wrench, the handle is pivotally connected to the receiving member, and the handle has a limiting slot for the other end of the movable member to limit the relative pivoting range of the receiving member and the handle, thereby It is convenient for the auxiliary wrench to stop the rotation of the timing pulley during the disassembly or locking operation.

In order to achieve the above object, the present invention is provided with an elastic member between the receiving member and the movable member, and the elastic member is selected as a tension spring, which generates a stretching motion as the movable member is displaced in the sliding slot. In order to quickly adjust the relative distance between the brace and the stop, it is suitable for timing pulleys of different outer diameter sizes.

In order to achieve the above object, the present invention is provided with a first blocking wall and a second blocking wall in the limiting slot for the direction of rotation of the head of the movable member relative to the wrench, and selectively abutting against one of them. In this way, the timing belt pulley can be effectively rotated to rotate according to the rotation direction of the screw member, so that the operation can be completed with the same operation surface without the need for the turning operation during the disassembly or locking operation, and the utility model has the convenience of use.

Conventional part

1‧‧‧ Ontology

2‧‧‧ blocking column

3‧‧‧Chute

4‧‧‧ §

5‧‧‧ timing belt pulley

6‧‧‧ recess

7‧‧‧Wrench

8‧‧‧ screw

Part of the invention

10‧‧‧Receiving parts

11‧‧ ‧ blocking column

12‧‧‧Chute

20‧‧‧Activities

21‧‧‧First screwing element

211‧‧‧ head

212‧‧‧outer screw

22‧‧‧Second screwing element

221‧‧‧ screw holes

222‧‧ ‧ blocking

23‧‧‧ shims

223‧‧‧ hook hole

24‧‧‧Slide

30‧‧‧handle

31‧‧‧ Limit slot

32‧‧‧First barrier

33‧‧‧ second barrier

34‧‧‧First connecting wall

35‧‧‧Second connecting wall

40‧‧‧Flexible parts

50‧‧‧ screws

51‧‧‧ nuts

60‧‧‧Wrench

61‧‧‧ screw

70‧‧‧ timing belt pulley

71‧‧‧ recess

80‧‧‧ timing belt pulley

81‧‧‧ recess

[Fig. 1] is a schematic view of a conventional stop tool.

[Fig. 2] is a schematic view of the actual operation of the conventional stop tool.

Fig. 3 is an external view of an auxiliary tool of the timing pulley of the present invention.

Fig. 4 is another external view of the auxiliary tool of the timing pulley of the present invention.

Fig. 5 is a partially exploded view of the auxiliary tool of the timing pulley of the present invention.

Fig. 6 is a schematic view showing the operation of the auxiliary tool of the timing pulley of the present invention.

Fig. 7 is a schematic view showing the actual operation state of the auxiliary tool of the timing pulley of the present invention, showing the timing pulley being disassembled.

[Fig. 8] is a schematic view showing the actual operation state of the auxiliary tool of the timing pulley of the present invention, showing the locking timing pulley.

[Fig. 9] is a schematic view showing the actual operation state of the auxiliary tool of the timing pulley of the present invention, showing the locking of the larger outer diameter timing pulley.

For a detailed description of the preferred embodiments of the various drawings, reference should be made to the details of the invention.

Please refer to FIG. 3 to FIG. 5 . FIG. 3 and FIG. 4 are external views of the auxiliary tool of the timing pulley of the present invention, and FIG. 5 is a partial exploded view of the auxiliary tool of the timing pulley. The auxiliary tool of the present invention comprises a receiving member 10, a movable member 20, a handle 30 and an elastic member 40.

The receiving member 10 is generally in the shape of a C. The receiving member 10 has a stopper 11 on one side and a straight sliding groove 12 at the other end.

The movable member 20 is disposed in the sliding slot 12 and reciprocally movable in the sliding slot 12. The movable member 20 includes a first screwing member 21, a second screwing member 22, a spacer 23 and a sliding piece. The first screwing member 21 has a head portion 211 and a screw portion 212 extending from the head portion 211. The second screwing member 22 has a screw hole 221 at one end thereof, and the first screwing member 21 is inserted through the sleeve. The sheet 23 and the sliding piece 24 are screwed to the second screwing element 22 such that the first screwing element 21 and the second screwing element 22 are sandwiched on both sides of the sliding slot 12; wherein the spacer 23 abuts The outer side of one of the chutes 12, and the sliding piece 24 has a rounded outer periphery, which facilitates the smooth sliding of the sliding piece 24 in the sliding slot 12. In addition, the second screwing member 22 has a first end at the other end. The portion 222 extends in the same direction as the stopper 11 .

The handle 30 is pivotally connected between the stop 11 of the receiving member 10 and the sliding slot 12 so that the handle 30 can pivot relative to the receiving member 10, and the pivoting manner of the handle 30 and the receiving member 10 can be The screw 50 is matched with the nut 51 or other equivalent components; wherein the handle 30 is adjacent to the pivotal joint (ie, the joint of the screw 50 and the nut 51) has a limiting slot 31 for receiving the first screwing component. a head portion 211 of the 21, and a first blocking wall 32 and a second blocking wall 33 are disposed opposite to each other in the limiting slot 31, and a first connecting wall 34 and a second between the two are oppositely connected Connecting the wall 35, and further, the first retaining wall 32 is not parallel to the second retaining wall 33, A connecting wall 34 is adjacent to the pivoting of the receiving member 10 and the handle 30, and the wall of the first connecting wall 34 is longer than the second connecting wall 35. The first retaining wall 32 and the second retaining wall 33 of the limiting slot 31 The head 211 is selectively biased against one of them to limit the relative pivoting range of the receiving member 10 and the handle 30.

The elastic member 40 is disposed between the receiving member 10 and the movable member 20, and the elastic member 40 is a tension spring. One end of the nut 51 is fixed to the pivoting portion of the receiving member 10 and the handle 30, and the other end is hooked. The elastic member 40 is disposed on the outer edge of the movable member 20, and the elastic member 40 is normally held at one end of the sliding slot 12 and adjacent to the pivotal joint of the receiving member 10 and the handle 30.

Please refer to FIG. 6 , which is a schematic diagram of the operation of the auxiliary tool of the timing pulley of the present invention. When the elastic member 40 is in the normal position, the movable member 20 is held at one end of the sliding slot 12 and adjacent to the pivotal joint of the receiving member 10 and the handle 30. When the movable member 20 is pushed by an external force, the elastic member 40 is pulled apart. The movable member 20 is displaced in the sliding slot 12, and the movable member 20 can be away from the pivoting portion, so that the blocking portion 222 of the movable member 20 is relatively far away from the retaining post 11 , and vice versa, when the external force is removed, the elastic member 40 can be used. The spring force is reset to reset the stopper portion 222 toward the stopper column 11.

Referring to FIG. 7, it is a schematic diagram of the actual operation state of the auxiliary tool of the timing pulley of the present invention, and shows the disassembly of the timing pulley. The blocking post 11 of the receiving member 10 and the blocking portion 222 of the movable member 20 are placed at opposite positions of the peripheral recess 71 of the timing pulley 70. When the wrench 60 is used to loosen the screw 61, the blocking post 11 and the blocking portion 222 can be The stop timing pulley 70 rotates with the screw member 61 to facilitate the operator to loosen the screw member 61 for the purpose of disassembling the timing pulley 70. Further, when the screw member 61 is loosened in the counterclockwise direction, the handle 30 can be made. The receiving member 10 is pivoted clockwise so that the head 211 of the movable member 20 can just abut against the second blocking wall 33 of the limiting slot 31, so that the timing pulley 70 can be effectively stopped with the screw 61. Turn counterclockwise.

Referring to FIG. 8, it is a schematic diagram of the actual operation state of the auxiliary tool of the timing pulley of the present invention, and shows the locking timing pulley. In order to lock the screw 60 in the clockwise direction, the stopper 11 of the receiving member 10 and the blocking portion 222 of the movable member 20 are placed at the relative positions of the peripheral recess 71 of the timing pulley 70, and the handle 30 is relatively received. The member 10 is pivoted counterclockwise so that the head 211 of the movable member 20 can just abut against the first retaining wall 32 of the limiting slot 31, so that the timing pulley 70 can be effectively stopped with the screw 61 The clockwise direction is rotated to facilitate the operator to facilitate the screwing of the screw member 61 to achieve the purpose of locking the timing pulley 70.

Therefore, the present invention can operate on the same operation surface regardless of the disassembly or locking of the timing pulley 70 without the need for a turning operation, and the stoppers 11 of the receiving member 10 and the blocking portion 222 of the movable member 20 need only one side to be disposed. That is, it is convenient to use compared to conventional tools.

Referring to FIG. 9, it is a schematic diagram of the actual operation state of the auxiliary tool of the timing pulley of the present invention, and shows a locking of the larger outer diameter timing pulley. Compared with the foregoing, the movable member 20 is slidably disposed in the sliding slot 12, so that the relative distance between the retaining post 11 and the blocking portion 222 can be adjusted, so that the blocking post 11 and the blocking portion 222 can be smoothly placed at the timing of the larger diameter. The recess 81 of the pulley 80 is used for the wrench 60 to smoothly drive the screw 61. The adjustment method only needs to push and pull the movable member 20, and when released, the movable member 20 can be abutted against the timing pulley by the elastic member 40. The circumference of 80, the adjustment method is quite convenient and fast, and can be applied to timing pulleys 70, 80 of different outer diameter sizes.

The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. Any modifications or variations that are made without departing from the spirit of the invention are intended to be protected.

10. . . Receiving piece

11. . . Stop column

12. . . Chute

20. . . Moving parts

211. . . head

222. . . Stop

30. . . handle

31. . . Limit slot

32. . . First barrier

33. . . Second barrier

34. . . First connecting wall

35. . . Second connecting wall

50. . . Screw

60. . . wrench

61. . . Screw

70. . . Timing pulley

71. . . Concave

Claims (10)

An auxiliary tool for a timing pulley, comprising: a receiving member having a retaining post at one end and a sliding slot at the other end; a movable member disposed in the reciprocating manner in the sliding slot, and the movable member has one end at one end a blocking portion adapted to be fitted to the peripheral recess of a timing pulley; and a handle pivotally connected to the receiving member, the handle having a limiting slot for receiving the other end of the movable member It is used to limit the relative pivoting range of the receiving member and the handle. The auxiliary tool of the timing pulley according to claim 1, wherein an elastic member is disposed between the receiving member and the movable member. The auxiliary tool of the timing pulley according to claim 2, wherein the elastic member is a tension spring. The auxiliary tool of the timing pulley according to claim 3, wherein one end of the elastic member is fixed to the pivotal joint of the receiving member and the handle, and the other end is hooked on the periphery of the movable member. The auxiliary tool of the timing pulley according to claim 1, wherein the movable member comprises a first screwing member and a second screwing member which are screwed to each other on both sides of the sliding slot, the first screwing The component has a head portion, and the blocking portion is disposed on the second screwing component. The head of the first screwing component is received in the limiting slot. The auxiliary tool of the timing pulley of claim 5, wherein a sliding piece is disposed between the first screwing element and the second screwing element, and is accommodated in the sliding groove in a rolling manner. The auxiliary tool of the timing pulley according to claim 1, wherein the limiting slot has a first blocking wall and a second blocking wall disposed opposite to each other, so that the movable member is different from the edge of the blocking portion. Selectively resist one of them. The auxiliary tool of the timing pulley of claim 7, wherein the first barrier wall is not parallel to the second barrier wall. The auxiliary tool of the timing pulley of claim 8, wherein a first connecting wall and an opposite second connecting wall are disposed between the first blocking wall and the second blocking wall, the first connecting wall being adjacent to the first connecting wall The receiving member is pivotally connected to the handle. The auxiliary tool of the timing pulley of claim 9, wherein the wall of the first connecting wall is longer than the second connecting wall.