TWI665064B - Pliers - Google Patents

Abstract

The clamp of the present invention includes a first clamping member and a second clamping member. The first clamping member is provided with a first clamping portion, the second clamping member is pivotally disposed on the first clamping member, and the second The clamping member is provided with a second clamping portion. The second clamping portion is concavely provided with a clamping groove. The clamping groove extends in a direction parallel to the radial direction of the pivot axis of the second clamping member. High-tooth, clamp With the above structure, it can effectively prevent the clamp from slipping when turning the screw head.

Description

clamp

The invention mainly discloses a clamp, especially a clamp capable of clamping a threaded screw at the front end.

Please refer to the "Multi-purpose Pliers" patent of China Patent No. M400391, which discloses a multi-purpose pliers including a first pliers body and a second pliers body which are pivotally connected to each other. The pliers body is provided with a first flat mouth clamping portion and a second flat mouth clamping portion, a first arc opening clamping portion and a second arc opening clamping portion, which are symmetrical to each other, and a symmetrical A first notch clamping portion and a second notch clamping portion, the first notch clamping portion and the second notch clamping portion having larger than the first arc notch clamping portion and the second arc notch clamping The first notch clamping portion and the second notch clamping portion are respectively formed with symmetrical saw teeth, and the symmetrical saw teeth cooperate with the first notch clamping portion and the second notch clamping Radian of the part.

The pliers have a use method in which a first flat-mouth clamping section and a second flat-mouth clamping section are used to clamp a screw or other small mechanical components. However, the clamping method is a first flat-mouth clamping section and a second flat-mouth clamping method. The plane of the part contacts the circular arc surface of the screw, and the extension direction of the teeth on the first and second flat clamping portions is parallel to the rotation direction of the screw. The pliers can only drive the screw through friction, which is easy to produce. Slip condition.

In view of the lack of the above-mentioned conventional structure, the inventor has devised a clamp which can overcome all the disadvantages of the above-mentioned conventional structure.

The main purpose of the clamp of the present invention is to provide a clamp including a first clamping member and a second clamping member. A front end of the first clamping member is provided with a first clamping portion, and the second The clamping member is pivoted on the first clamping member, the first clamping portion is located on a side of the first clamping member adjacent to the second clamping member, and the front end of the second clamping member is adjacent to the first clamping member. A second clamping portion is provided on one side of the holding member. When the first clamping member and the second clamping member are clamped to each other, the first clamping portion contacts the second clamping portion, and the second clamp The holding part is concavely provided with a clamping groove, which extends in a radial direction parallel to the pivot axis of the second clamping member. A first high tooth is convexly arranged in the clamping groove. Effectively prevent the clamp from slipping when turning the screw head.

The second clamping member has a virtual reference circle. The center of the virtual reference circle is located between the first clamping portion and the second clamping portion. On the plane of the virtual reference circle, the center of the virtual reference circle. The connection line to the first high tooth tip forms a first virtual reference line. The first high tooth is provided with a first tooth surface and a second tooth surface on two sides with different tooth tips, respectively. The tooth surface and the second tooth surface are located on the same side of the first virtual reference line.

On the plane of the virtual reference circle, the line connecting the center of the virtual reference circle to the second high-tooth tip forms a second virtual reference line, and the second high-tooth is provided on two sides with different tooth tips respectively A third tooth surface and a fourth tooth surface, the third tooth surface and the fourth tooth surface are located on the same side of the second virtual reference line, the first high tooth and the second high tooth are located in the first virtual reference line Between the reference line and the second virtual reference line.

An included angle between the first tooth surface and the first virtual reference line different from the virtual reference circle center is 5 degrees or more and 15 degrees or less, and the second tooth surface and the first virtual reference line are different from the first reference line. The included angle of one side of the virtual reference circle center is 45 degrees or more and 75 degrees or less, and the included angle of the third tooth surface and the second virtual reference line is different from that of the virtual reference circle center side by 5 degrees or more and 15 degrees. Hereinafter, an included angle between the fourth tooth surface and the second virtual reference line different from the virtual reference circle center side is 45 degrees or more and 75 degrees or less.

The first high tooth extends in a direction parallel to a radial direction of the pivot axis of the second clamping member.

Three low teeth are protruded in the clamping groove, and the three low teeth respectively extend in a direction parallel to the radial direction of the pivot axis of the second clamping member. The virtual reference circle is in a cross section perpendicular to the extension direction of the three low tooth teeth. In the above, the virtual reference circle passes through the tooth tips of the three low teeth, and the tooth tip of the first high tooth is within the virtual reference circle.

The first tooth surface and the second tooth surface are both located on a side of the first virtual reference line adjacent to the three low teeth, and the third tooth surface and the fourth tooth surface are located on the second virtual reference line adjacent to the Three low-toothed sides.

A second high tooth is protruded in the clamping groove, and the tooth tip of the second high tooth extends in a direction parallel to the radial direction of the pivot axis of the second clamping member. Inside, the three low teeth are located between the first high teeth and the second high teeth.

The first clamping portion is provided with a plurality of clamping teeth. The tooth tips of the plurality of clamping teeth of the first clamping portion respectively extend in a direction parallel to the axial direction of the pivot axis of the second clamping member. The second clamping portion A plurality of clamping teeth are convexly arranged, the plurality of clamping teeth of the second clamping portion are evenly disposed on different sides of the clamping groove, and the plurality of clamping teeth of the second clamping portion are respectively parallel to the second clamping member. The pivot axis extends in a radial direction. When the first clamping member and the second clamping member are clamped to each other, the plurality of clamping teeth of the first clamping portion and the plurality of clamping teeth of the second clamping portion are mutually staggered.

The first clamping portion at the front end of the first clamping member is planar, the second clamping portion is provided with a plurality of clamping teeth, and the plurality of clamping teeth of the second clamping portion are evenly disposed in the clamping grooves having different On both sides, several clamping teeth of the second clamping portion respectively extend in directions parallel to the radial direction of the pivot axis of the second clamping member.

The first clamping portion is provided with a plurality of clamping teeth. The tooth tips of the plurality of clamping teeth of the first clamping portion respectively extend in a direction parallel to the axial direction of the pivot axis of the second clamping member. The second clamping portion A plurality of clamping teeth are convexly arranged, the plurality of clamping teeth of the second clamping portion are evenly disposed on different sides of the clamping groove, and the plurality of clamping teeth of the second clamping portion are respectively parallel to the second clamping member. The pivot axis extends in the axial direction. When the first clamping member and the second clamping member are clamped to each other, the clamping teeth of the first clamping portion and the clamping teeth of the second clamping portion are mutually Mesh.

Other objects, advantages, and novelty of the present invention will be more apparent from the following detailed description and related drawings.

Regarding the technology, means and effects adopted by the present invention, five preferred embodiments are described in detail below with reference to the drawings. This is for illustration purposes only, and it is not limited by such structures in patent applications.

Please refer to FIG. 1 to FIG. 5, which are a perspective view of the first embodiment of the clamp of the present invention, a partially enlarged perspective view of the jaw opening, a front side plan view, a cross-sectional structure view of the jaw, and a use state. Illustration. The clamp 10 of the present invention includes a first clamping member 20 and a second clamping member 30;

A first clamping portion 21 is disposed at a front end of the first clamping member 20.

The second clamping member 30 is pivotally disposed on the first clamping member 20. The first clamping portion 21 is located on a side of the first clamping member 20 adjacent to the second clamping member 30. A second clamping portion 31 is provided at a front end of the member 30 adjacent to the first clamping member 20. When the first clamping member 20 and the second clamping member 30 are clamped to each other, the first clamping member 30 The portion 21 contacts the second clamping portion 31. The second clamping portion 31 is recessed with a clamping groove 32. The clamping groove 32 extends in a direction parallel to the radial direction of the pivot axis of the second clamping member 30. 32 internally provided with three low teeth 321 and a first high tooth 322. The tooth tips of the three low teeth 321 and the first high tooth 322 respectively extend in a direction parallel to the radial direction of the pivot axis of the second clamping member 30. The second clamping member 30 has a virtual reference circle O. The center of the virtual reference circle O is located between the first clamping portion 21 and the second clamping portion 31. The virtual reference circle O is perpendicular to the three In the cross section of the tooth tips of the low teeth 321, the virtual reference circle O passes through the tooth tips of the three low teeth 321, and the tooth tips of the first high teeth 322 are within the virtual reference circle O.

The first clamping portion 21 is provided with a plurality of clamping teeth 211. The tooth tips of the plurality of clamping teeth 211 of the first clamping portion 21 respectively extend in a direction parallel to the axial direction of the pivot axis of the second clamping member 30. The second clamping portion 31 is convexly provided with a plurality of clamping teeth 311. The plurality of clamping teeth 311 of the second clamping portion 31 are evenly disposed on different sides of the clamping groove 32. The clamping teeth 311 respectively extend in a direction parallel to the radial direction of the pivot axis of the second clamping member 30. When the first clamping member 20 and the second clamping member 30 are clamped to each other, the number of the first clamping portion 21 The clamping teeth 211 and the clamping teeth 311 of the second clamping portion 31 are staggered with each other.

With the above structure, when the screw head is clamped by the first clamping portion 21 and the second clamping portion 31 by the above structure, the three low teeth 321 and the first high teeth 322 can be deformed by squeezing the screws. Penetration into the screw head, in particular, the depth of the first high-tooth 322 penetrating the screw head is much higher than the depth of the three low-tooth 321 penetrating screws, which can effectively prevent the clamp 10 from slipping when the screw head is turned .

Please refer to FIG. 6 to FIG. 9, which are the perspective external views of the second embodiment of the clamp of the present invention, a partially enlarged perspective external view of the jaw opening, a front side side plan external view, and a cross-sectional structural view of the jaw. The second embodiment of the present invention is substantially the same as the first embodiment, the main difference is that a second high tooth 323a is convexly arranged in the clamping groove 32a, and the tooth tips of the second high tooth 323a are parallel to the second clamping The pivoting axis of the piece 30a extends in the radial direction, the tip of the second high tooth 323a is within the virtual reference circle O, and the three low teeth 321a are located between the first high tooth 322a and the second high tooth 323a.

Please refer to FIG. 10 and FIG. 11, which are a perspective view and a cross-sectional structure view of a third embodiment of the clamp of the present invention. The third embodiment of the present invention is substantially the same as the first embodiment, the main difference is that the first clamping portion 21b at the front end of the first clamping member 20b is planar, and the first clamping portion 21b can be a rough plane.

Please refer to FIG. 12, which is a partially enlarged perspective external view of the jaw opening of the fourth embodiment of the clamp of the present invention. The fourth embodiment of the present invention is substantially the same as the first embodiment. The main difference is that the plurality of clamping teeth 311c of the second clamping portion 31c respectively extend in directions parallel to the axial direction of the pivot axis of the second clamping member 30c. When the first clamping member 20c and the second clamping member 30c are clamped to each other, the plurality of clamping teeth 211c of the first clamping portion 21c and the plurality of clamping teeth 311c of the second clamping portion 31c are engaged with each other.

Please refer to FIG. 13 to FIG. 16, which are a perspective view of the fifth embodiment of the clamp of the present invention, a partially enlarged perspective view of the jaw opening, a front side side plan external view, and a cross-sectional structure view of the jaw. The fifth embodiment of the present invention is substantially the same as the second embodiment. The main difference is that on the plane of the virtual reference circle O, the line connecting the center of the virtual reference circle O to the tooth tip of the first high tooth 322d forms one. A first virtual reference line L1, the first high tooth 322d is provided with a first tooth surface 324d and a second tooth surface 325d on two sides with different tooth tips, the first tooth surface 324d and the second tooth surface 325d is located on the same side of the first virtual reference line L1, and both the first tooth surface 324d and the second tooth surface 325d are located on a side of the first virtual reference line L1 adjacent to the three low teeth 321d. On the plane of the virtual reference circle O, the line connecting the center of the virtual reference circle O to the tooth tip of the second high tooth 323d forms a second virtual reference line L2. The second high tooth 323d is different from the tooth tip. A third tooth surface 326d and a fourth tooth surface 327d are provided on both sides, and the third tooth surface 326d and the fourth tooth surface 327d are located on the same side of the second virtual reference line L2, and the third tooth surface 326d and the fourth tooth surface 327d are located on a side of the second virtual reference line L2 adjacent to the three low teeth 321d, and the first high tooth 322d and the second high tooth 323d are located on the first virtual reference line L1 and Between the second virtual reference line L2.

The angle between the first tooth surface 324d and the first virtual reference line L1 and the virtual reference circle O center side is 5 degrees or more and 15 degrees or less, and the second tooth surface 325d and the first virtual reference line The included angle of the side of L1 different from the center of the virtual reference circle O is 45 degrees or more and 75 degrees or less. The third tooth surface 326d and the second virtual reference line L2 are different from the side of the virtual reference circle O center. The included angle is 5 degrees or more and 15 degrees or less, and the included angle of the fourth tooth surface 327d and the second virtual reference line L2 on the side of the virtual reference circle O center is 45 degrees or more and 75 degrees or less.

From the above, it can be concluded that the present invention has the following advantages:

1. A clamp according to the present invention, wherein the clamp comprises a first clamping member and a second clamping member, a front end of the first clamping member is provided with a first clamping portion, and the second clamping member Pivotly disposed on the first clamping member, the first clamping portion is located on a side of the first clamping member adjacent to the second clamping member, and the front end of the second clamping member is adjacent to the first clamping member. A second clamping portion is provided on one side. When the first clamping member and the second clamping member are clamped to each other, the first clamping portion contacts the second clamping portion, and the second clamping portion is concave. A clamping groove is provided, the clamping groove extends in a direction parallel to the radial direction of the pivot axis of the second clamping member, a first high tooth is convexly arranged in the clamping groove, and the clamp can effectively prevent the clamp through the above structure. The clamp slipped when turning the screw head.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, the changes in numerical values or the replacement of equivalent elements, or the equivalent according to the scope of the patent application of the present invention Changes and modifications should still fall within the scope of the invention patent.

10‧‧‧ Clamp

20‧‧‧The first clamp

21‧‧‧First clamping section

211‧‧‧Clamp

30‧‧‧Second clamp

31‧‧‧Second clamping section

311‧‧‧Clamp

32‧‧‧clip

321‧‧‧low tooth

322‧‧‧First High Teeth

30a‧‧‧Second clamp

32a‧‧‧clip

321a‧‧‧low tooth

322a‧‧‧First High Teeth

323a‧‧‧Second highest tooth

20b‧‧‧First clamp

21b‧‧‧First clamping section

20c‧‧‧First clamp

21c‧‧‧First clamping section

211c‧‧‧Gear

30c‧‧‧Second clamp

31c‧‧‧Second clamping section

311c‧‧‧tooth

321d‧‧‧low tooth

322d‧‧‧First High Teeth

323d‧‧‧Second highest tooth

324d‧‧‧first tooth surface

325d‧‧‧second tooth surface

326d‧‧‧ Third tooth surface

327d‧‧‧ Fourth tooth surface

O‧‧‧Virtual datum circle

L1‧‧‧First virtual baseline

L2‧‧‧Second Virtual Baseline

FIG. 1 is a perspective view of a first embodiment of the clamp of the present invention. FIG. 2 is a partially enlarged perspective external view of the jaw opening of the first embodiment of the clamp of the present invention. FIG. 3 is a side plan view of the front end of the first embodiment of the clamp of the present invention. Fig. 4 is a sectional structural view of a jaw of a first embodiment of the clamp of the present invention. FIG. 5 is a view showing the use state of the jaws of the first embodiment of the clamp of the present invention. FIG. 6 is a perspective view of a second embodiment of the clamp of the present invention. FIG. 7 is a partially enlarged perspective view of the jaw opening of the second embodiment of the clamp of the present invention. FIG. 8 is a side plan view of the front end of the second embodiment of the clamp of the present invention. Fig. 9 is a sectional structural view of a jaw of a second embodiment of the clamp of the present invention. FIG. 10 is a perspective view of a third embodiment of the clamp of the present invention. Fig. 11 is a sectional structural view of a jaw of a third embodiment of the clamp of the present invention. FIG. 12 is a partially enlarged perspective view of the jaw opening of the fourth embodiment of the clamp of the present invention. FIG. 13 is a perspective view of a fifth embodiment of the clamp of the present invention. Fig. 14 is a partially enlarged perspective view of the jaw opening of the fifth embodiment of the clamp of the present invention. FIG. 15 is a side plan view of the front end of a fifth embodiment of the clamp of the present invention. FIG. 16 is a sectional structural view of a jaw of a fifth embodiment of the clamp of the present invention.

Claims (10)

A clamp includes: a first clamping member, a front end of the first clamping member is provided with a first clamping portion; a second clamping member, the second clamping member is pivotally disposed on the first A clamping member, the first clamping portion is located on a side of the first clamping member adjacent to the second clamping member, and a front end of the second clamping member is provided with a side adjacent to the first clamping member. A second clamping part, when the first clamping part and the second clamping part are clamped to each other, the first clamping part contacts the second clamping part, and the second clamping part is recessed with a clamping groove The clamping groove extends in a direction parallel to the radial direction of the pivot axis of the second clamping member. A first high tooth is convexly arranged in the clamping groove. The second clamping member has a virtual reference circle. The center of the circle is located between the first clamping portion and the second clamping portion. On the plane of the virtual reference circle, the line connecting the center of the virtual reference circle to the first high-tooth tip forms a first virtual reference. Line, the first high tooth is provided with a first tooth surface and a second tooth surface on two sides with different tooth tips, the first tooth surface and the second tooth On the same side of the first virtual reference line. The clamp according to claim 1, wherein a second high tooth is convexly arranged in the clamping groove, and the line from the center of the virtual reference circle to the tip of the second high tooth is on the plane of the virtual reference circle. A second virtual reference line is formed. The second high tooth is provided with a third tooth surface and a fourth tooth surface on two sides with different tooth tips. The third tooth surface and the fourth tooth surface are located in the first tooth surface. On the same side of the two virtual reference lines, the first high tooth and the second high tooth are located between the first virtual reference line and the second virtual reference line. The clamp according to claim 2, wherein an angle between the first tooth surface and the first virtual reference line different from the virtual reference circle center side is 5 degrees or more and 15 degrees or less, and the second tooth surface An angle different from the first virtual reference line from the virtual reference circle center is 45 degrees or more and 75 degrees or less. The third tooth surface and the second virtual reference line are different from the virtual reference circle center. The included angle of the side is 5 degrees or more and 15 degrees or less, and the included angle of the fourth tooth surface and the second virtual reference line different from the virtual reference circle center side is 45 degrees or more and 75 degrees or less. The clamp according to claim 2, wherein the first high tooth extends in a direction parallel to a radial direction of the pivot axis of the second clamp. The clamp according to claim 4, wherein three low teeth are protruded in the clamping groove, and the three low teeth respectively extend in a direction parallel to the radial direction of the pivot axis of the second clamping member, and the virtual reference circle is vertical. In a cross section of the three low-tooth tooth tips, the virtual reference circle passes through the three low-tooth tooth tips, and the first high-tooth tooth tip is within the virtual reference circle. The clamp according to claim 5, wherein the first tooth surface and the second tooth surface are located on a side of the first virtual reference line adjacent to the three low teeth, the third tooth surface and the fourth tooth The faces are all located on a side of the second virtual reference line adjacent to the three low teeth. The clamp according to claim 6, wherein the tooth tip of the second high tooth extends in a direction parallel to a radial direction of the pivot axis of the second clamp, and the tooth tip of the second high tooth is within the virtual reference circle, The three low teeth are located between the first high teeth and the second high teeth. The clamp according to any one of claims 5 to 7, wherein the first clamping portion is provided with a plurality of clamping teeth, and the tooth tips of the plurality of clamping teeth of the first clamping portion are respectively parallel to the second The clamping member extends in the axial direction of the pivot axis. The second clamping portion is provided with a plurality of clamping teeth. The plurality of clamping teeth of the second clamping portion are evenly disposed on different sides of the clamping groove. The plurality of clamping teeth of the clamping portion respectively extend in a direction parallel to the radial direction of the pivot axis of the second clamping member. When the first clamping member and the second clamping member are clamped to each other, the The plurality of clamping teeth and the plurality of clamping teeth of the second clamping portion are staggered with each other. The clamp according to any one of claims 5 to 7, wherein the first clamping portion at the front end of the first clamping member is planar, the second clamping portion is convexly provided with a plurality of clamping teeth, and the second A plurality of clamping teeth of the clamping portion are evenly disposed on different sides of the clamping groove, and the plurality of clamping teeth of the second clamping portion respectively extend in a direction parallel to a radial direction of the pivot axis of the second clamping member. The clamp according to any one of claims 5 to 7, wherein the first clamping portion is provided with a plurality of clamping teeth, and the tooth tips of the plurality of clamping teeth of the first clamping portion are respectively parallel to the second The clamping member extends in the axial direction of the pivot axis. The second clamping portion is provided with a plurality of clamping teeth. The plurality of clamping teeth of the second clamping portion are evenly disposed on different sides of the clamping groove. A plurality of clamping teeth of the clamping portion respectively extend in directions parallel to the axial direction of the pivot axis of the second clamping member. When the first clamping member and the second clamping member are clamped to each other, the The plurality of clamping teeth and the plurality of clamping teeth of the second clamping portion mesh with each other.