TWI439353B - Gear plier - Google Patents

Description

Gear clamping device

The present invention relates to a clamping device, and more particularly to a gear clamping device for clamping a gear so that the gear does not rotate arbitrarily.

The camshaft is a very important component in the automobile engine. It has a complicated structure and has a large number of parts. Generally speaking, in the process of disassembling the camshaft, the gear must be clamped first by a gear clamping device. The camshaft is subjected to the operation of disassembling the camshaft, otherwise the timing gear will rotate arbitrarily, which will affect the disassembly operation.

However, the conventional gear clamping device, as shown in Pat. No. US 6,345, 558 and Pat. No. US 7,077,036, must be held by a strong hand to hold the gear, which will cause the hand to be sore and affect the disassembly efficiency. .

Another type of gear clamping device can improve the above problem, but in use, it will be blocked on one side of the shaft of the gear, preventing a disassembly tool from disassembling the screw on the mandrel, and the gear clamping device is only applicable. For single-size gears, the practicality is very insufficient.

In view of this, how to provide a gear clamping device, which has the advantages of simple operation, application of gears of different sizes, and does not affect the disassembly of the mandrel of the gear, is an improvement of the industry.

The main object of the present invention is to provide a gear clamping device which has the advantages of simple operation, suitable for gears of different sizes and does not affect the screw of the spindle of the gear. Unloading the job.

To achieve the above object, the gear clamping device of the present invention is configured to clamp a gear. The gear clamping device includes: a body including a handle and a bent portion, the bent portion is axially from one end of the handle Extending, the curved portion is C-shaped and enclosing an opening; a first clamping member is disposed on the handle, the extending direction of the first clamping member is perpendicular to an axial direction of the opening of the curved portion; a second clamping member And the bottom surface of the first clamping member faces the top surface of the second clamping member, so that the first and second clamping members define a clamping mouth; The first clip can be adjusted between a first position and a second position along the axial direction of the handle, such that the size of the jaw is adjustable.

The gear clamping device of the present invention can arbitrarily adjust the size of the jaw by sliding the first clip relative to the grip, so that it can be applied to a plurality of gears of different sizes. In addition, the axial direction of the opening of the curved portion is parallel to the extending direction of the first and second clamp members, whereby the removal tool can pass through the opening without any hindrance when the screw is removed, which is quite convenient and practical.

The structural features of the present invention and the intended effects thereof will be described in the following examples, and are not intended to limit the scope of the invention as claimed.

Referring to Figure 1, in a preferred embodiment of the present invention, the gear clip of the present invention The fixing device comprises a body, a first clamping member 2, a second clamping member 3 and an adjusting means.

The body includes a handle 11 and a bent portion 12. The handle 11 defines a sliding slot 111 extending axially for a length and radially extending through the sides of the handle 11. The bent portion 12 is disposed at one end of the handle 11 and the bent portion 12 has an opening 121. Preferably, the curved portion 12 has a C shape. Of course, the shape of the curved portion 12 may also be, but not limited to, an O shape, a D shape, a ㄑ shape, a ㄈ shape or a polygon, etc., as long as it is composed of at least one bent portion or a curved portion and has one The opening portion can be the bent portion 12.

The first clamping member 2 is disposed on the body, preferably disposed on the handle 11. The extending direction of the first clamping member 2 is parallel to the axial direction of the opening 121 of the curved portion, in other words, the first clamping member The extending direction of 2 is perpendicular to the opening direction of the opening 121 of the C-shaped bent portion. In this embodiment, the first clamping member 2 is a rectangular block, and the two ends of the longitudinal direction are respectively defined as a first end 21 and a second end 22, and the extending direction of the first clamping member 2 is For its length direction. The first clamping member 2 defines a through hole extending through the top and bottom ends of the first clamping member 2 and adjacent to the first end 21 . More specifically, the through hole extends in a direction parallel to the thickness direction of the first clip 2. The handle 11 passes through the through hole, so that the first clip 2 can slide along the axial direction of the handle 11. The bottom surface of the first clamping member 2 is formed with a plurality of convex teeth 23 extending in a direction parallel to the extending direction of the first clamping member 2.

The second clamping member 3 is disposed on the body, and the opening 121 of the curved portion is located at the first 1. Between the second clamps. More specifically, the second clamping member 3 is disposed at one end of the curved portion 12 away from the handle, and is located on the same side of the first clamping member 2 as the body, and the extending direction of the second clamping member 3 Parallel to the extending direction of the first clamping member 2, and the bottom surface of the first clamping member 2 faces the top surface of the second clamping member 3, so that the first and second clamping members 2, 3 define a clamping mouth. The second clamping member 3 is also a rectangular block. The top surface of the second clamping member 3 is formed with a plurality of protruding teeth 31. The protruding teeth 31 extend in a direction parallel to the extending direction of the second clamping member 3.

The adjusting means is configured to adjust the first clamping member 2 between a first position and a second position along the axial direction of the handle 11, so that the size of the clamping mouth is adjustable. In this embodiment, the gear clamping device of the present invention further includes a pressing member 4, and the pressing member 4 sequentially passes through the first end 21 of the first clamping member and the sliding groove 111 of the handle, and is screwed It is disposed inside the first clip 2. The pressing member 4 is slidable along the sliding slot 111 and drives the first clamping member 2 to be displaced between the first and second positions, thereby adjusting the size of the clamping opening. And the pressing member 4 can press and fix the first clamping member 2 at any position between the first and second positions.

Referring to FIG. 5, in another embodiment of the present invention, another adjustment means is disclosed, mainly that the first clamping member 2 does not have the through hole, and the gear clamping device further includes a nut 5 and a The rack 6 has an internal thread, and the rack 6 is coupled to the first end 21 of the first clip 2 and is slidably disposed on the sliding slot 111. The rack 6 is formed with a plurality of protruding teeth 61. The protruding teeth 61 are axially spaced apart. The internal threads of the nut 5 are selectively engaged with the partial protruding teeth, so that the rack 6 can be along the sliding slot 111. Sliding and driving the first clip 2 to be displaced 1. Between the second positions, and can be arbitrarily stopped at any position between the first and second positions. In this embodiment, the protruding teeth 61 are disposed on one side of the rack away from the first clamping member, and the protruding teeth 61 are laterally extended to engage the internal threads of the nut. Preferably, the rack is disposed adjacent to one side of the first clip member, and a plurality of protruding teeth (not shown) are disposed, and the arrangement is arranged in the same axial direction as the protruding teeth 61. Thereby, the rack 6 is arranged. It can smoothly slide along the chute 111.

Referring to FIG. 2 and FIG. 3, the present invention is mainly used to clamp a gear 7. In use, the first clamping member 2 can be slid along the axial direction of the handle 11 to the first position by using the adjusting means (that is, sliding away from the second clamping member 3), thereby Adjust the size of the jaws (not shown). Next, the gear 7 is placed in the nip, and a part of the convex teeth on the outer circumference of the gear 7 is engaged with the convex teeth on the top surface of the second clamp member 3, and then the first clamp member 2 can be made along the adjustment means. The axial direction of the grip 11 slides toward the second position (that is, slides toward the second clamp member) until the convex teeth of the bottom surface of the first clamp member 2 engage with the partial teeth of the gear 7. , as shown in Figure 2 and Figure 3. Thereby, the gear 7 can be completely fixed without any rotation.

Referring to FIG. 4, for example, an overall structure of a camshaft for disassembling an automobile engine is rotatably coupled to the gear 7. After the gear 7 is clamped by the present invention, the user can further remove the screw locked to the spindle of the gear 7 by means of a disassembly tool. When disassembling, one end of the disassembly tool can pass through the opening 121 of the curved portion without any hindrance, and then the screw is removed by rotating, so that the mandrel and other parts of the camshaft can be further removed. One removed.

Thereby, the gear clamping device of the present invention can arbitrarily adjust the size of the jaw by sliding the first clip relative to the grip, so that it can be applied to a plurality of gears of different sizes.

Secondly, after the first and second clamping members clamp the gear, the first clamping member is immediately fixed at a specific position, and the user only needs to gently grasp the invention with one hand, thereby preventing the gear from rotating arbitrarily and improving the disassembly efficiency. .

Then, the axial direction of the opening of the curved portion is parallel to the extending direction of the first and second clamping members, that is, when the gear is clamped by the present invention, the axial direction of the opening is parallel to the spindle of the gear The direction of the axis, more clearly, the opening of the opening does not face the gear at this time, whereby the removal tool is not obstructed when the screw is removed, which is quite convenient and practical.

It can be seen from the above that the gear clamping device of the present invention is not only structurally innovative, but also has a progressive effect, conforms to the relevant provisions of the Patent Law, and is filed in accordance with the law, and the Office of the State Council has approved the patent as soon as possible.

11‧‧‧Handle

111‧‧‧Chute

12‧‧‧Bend

121‧‧‧ openings

2‧‧‧First clamp

21‧‧‧ first end

22‧‧‧ second end

23, 31, 61‧‧ ‧ convex teeth

3‧‧‧Second clip

4‧‧‧forced parts

5‧‧‧ nuts

6‧‧‧ rack

7‧‧‧ Gears

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

2 is a schematic view of a gear clamped in accordance with a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view taken along line AA of Figure 2;

4 is a schematic view of the main shaft of the gear after the gear is clamped according to a preferred embodiment of the present invention.

Figure 5 is a perspective view of another embodiment of the present invention.

11‧‧‧Handle

111‧‧‧Chute

12‧‧‧Bend

121‧‧‧ openings

2‧‧‧First clamp

21‧‧‧ first end

22‧‧‧ second end

23, 31‧‧ ‧ convex teeth

3‧‧‧Second clip

4‧‧‧forced parts

Claims (9)

A gear clamping device for clamping a gear, the gear clamping device comprising: a body, comprising a handle and a bent portion, the bent portion is disposed at one end of the handle, the bent portion has an opening; a first clamping member is disposed on the body, the extending direction of the first clamping member is parallel to the axial direction of the opening of the curved portion; a second clamping member is disposed on the body, and the opening of the curved portion is located at the first a second clamping member; wherein the bottom surface of the first clamping member faces the top surface of the second clamping member, the first and second clamping members define a clamping mouth; and an adjusting means for The first clip is adjusted between a first position and a second position such that the size of the jaw is adjustable. The gear clamping device of claim 1, wherein the first clamping member is disposed on the handle, and the second clamping member is disposed on the bent portion away from the end of the handle, the adjusting means is configured to make the first The clip can be adjusted between a first position and a second position along the axial direction of the handle. The gear clamping device of claim 2, wherein the handle defines a sliding slot extending axially for a length and radially extending through the sides of the handle. The gear clamping device of claim 3, wherein the first clamping member defines a through hole, the through hole penetrating the top and bottom ends of the first clamping member, the handle penetrating the through hole, so that the first The clip member is slidable along the axial direction of the handle; further comprising a pressing member, the first clip member having a first end and a second end The pressing member sequentially passes through the first end of the first clamping member and the sliding groove of the handle, and is screwed inside the first clamping member, and the pressing member can slide along the sliding slot and drive The first clamping member is displaced between the first and second positions, and the pressing member can press and fix the first clamping member at any position between the first and second positions. The gear clamping device of claim 3, further comprising a nut and a rack, the nut having an internal thread, the first clip having a first end and a second end, the rack being coupled to The first end of the first clamping member is slidably disposed on the sliding groove; wherein the rack forms a plurality of convex teeth, the protruding teeth are axially spaced, and the internal threads of the nut are selectively engaged And a portion of the protruding tooth, the rack can be slid along the sliding slot, and the first clamping member is displaced between the first and second positions, and can be fixed at any position between the first and second positions. The gear clamping device according to any one of claims 1 to 5, wherein the bottom surface of the first clamping member is formed with a plurality of convex teeth. The gear clamping device of claim 6, wherein the top surface of the second clamping member is formed with a plurality of convex teeth. The gear clamping device of any one of claims 1 to 5, wherein the top surface of the second clamp member is formed with a plurality of convex teeth. The gear clamping device of any one of claims 1 to 5, wherein the bent portion is C-shaped.