TW201531384A - Chain tool - Google Patents

Abstract

This invention relates to a chain tool capable of being used for fast detaching and assembling the engagement and disengagement of a chain element, which is composed of two plier members. Each plier member has a body part, a grip part, and an actuating part. When the grip parts of two plier members are opened, the force applying sides of two actuating parts are facing each other and the back sides are opposite to each other; and the distance of the two force applying sides when facing each other can be greater than the spacing of the outsides of two adjacent rollers in the chain element. When the grip parts of the two plier members are closed, the back sides of two actuating parts are facing each other and the force applying sides are opposite to each other; and the distance of two force applying sides when opposite to each other can be greater than the spacing of the insides of two rollers. Accordingly, this invention is constituted.

Description

Chain tool

The invention relates to a chain tool, in particular to a fastening and detaching of a chain link which can be used for quick disassembly.

According to the chain, a transmission tool commonly used in machinery can be driven between the shaft and the shaft through the connection of the chain. In the bicycle field, the chain is sleeved on the axle of the axle and the crankshaft of the crank, and when the crank drives the axle to rotate due to the pedaling action, the axle can be rotated by the chain transmission, so that the wheel of the bicycle is Driving on the road.

The chain that is traditionally used in bicycles is composed of a plurality of chain links, and if it is to be disassembled for maintenance or cleaning, the pin must be detached from the two links by a special tool, but the traditional chain is removed. It is not easy to install, so there are improved links that can be quickly disassembled.

As shown in Fig. 8, the link that can be quickly disassembled and used is mainly provided at the two ends of the chain 9 and two outer chain plates 91 are oppositely arranged on the two sides of the symmetry, and the outer chain plates 91 are respectively arranged. Each of the two sides has a pin member 92 and a through hole 93, and the through hole 93 has a large diameter portion 931 and a small diameter portion 932.

As shown in FIG. 9, when the two ends of the chain 9 are assembled by the two outer chain plates 91, the pin members 92 of the outer chain plates 91 are placed in the large diameter section 931 of the through holes 93 of the other outer link plate 91, and then A clamp 94 abuts the rollers 95 of the links on both sides of the outer link plate 91, and pulls the clamp 94 to move the rollers 95 of the two links away from each other, so that the pin 92 is moved from the large diameter section 931 to The small diameter section 932 is fixed behind, that is, the fastening of the two ends of the chain 9 is completed.

As shown in FIG. 10, when the two ends of the buckled chain 9 are to be detached, a pair of clamps 96 are pressed against the rollers 95 on both sides of the outer link plate 91, and the clamp 96 is clamped. The force is applied so that the rollers 95 of the two side links are close to each other, and the pin member 92 is moved from the small diameter section 932 to the large diameter section 931, so that the pin member 92 can be withdrawn from the large diameter section 931, that is, the chain 9 is completed. The separation of the ends.

However, the fastening and separation of the two ends of the chain must be completed by the clamp 94 and the clamp 96 respectively, but the two different clamps have the problem of occupying space when they are carried, and the use is also confused due to structural similarity. Mistakes and misuses cause inconvenience in use.

Therefore, how to solve the problem of the above-mentioned conventional chain tool is the main focus of the invention.

The main object of the present invention is to solve the above problems and provide a chain tool, which can complete the fastening and disengagement of the quick-disconnectable links by a single tool, thereby achieving the convenience of carrying and using.

For the purposes of the foregoing, the present invention includes two pliers members, each pliers having a body portion, a grip portion extending from the body portion, and an actuation portion positioned on opposite sides of the body portion from the grip portion The body of the two pliers members is pivotally connected by a pivoting member, and the positions of the grip portions of the two pliers members and the actuating portion are symmetrical with each other, and the actuating portions of the two pliers members are also symmetrically disposed, and the actuating portions of the pliers members are opposite to each other The opposite sides of the pivoting direction of the body respectively have a force applying side and a reverse side; when the grip parts of the two jaw parts are opened, the force applying sides of the two actuating parts face opposite and opposite sides, and the second force side The distance in the opposite direction may be greater than the distance between the outer sides of the adjacent rollers in the chain link; when the grip portion of the second pliers member is closed, the opposite sides of the two actuating portions face each other and the force-applying side is opposite, and the second force is applied The distance between the sides of the two rollers may be greater than the distance between the inner sides of the two rollers.

The above and other objects and advantages of the present invention will be readily understood from

Of course, the invention may be varied on certain components, or in the arrangement of the components, but the selected embodiments are described in detail in the specification and their construction is shown in the drawings.

(customized part)

9‧‧‧Chain
91‧‧‧Outer chain board

92‧‧‧ Pins
93‧‧‧Perforation

931‧‧‧ Large diameter section
932‧‧‧Small path

94‧‧‧Pliers
95‧‧‧Roller

96‧‧‧Pliers

(part of the invention)

1‧‧‧First pliers
11‧‧‧ Body

12‧‧ ‧ grip
13‧‧‧Operation Department

131‧‧‧ force side
132‧‧‧The opposite side

133‧‧‧Front recess
134‧‧‧ After recession

2‧‧‧Second pliers
21‧‧‧ Body

22‧‧‧ grip
23‧‧‧Operation Department

231‧‧‧ force side
232‧‧‧reverse

233‧‧‧Front recess
234‧‧‧ After recession

3‧‧‧ pivotal parts
4‧‧‧Chain

5‧‧‧ link
51‧‧‧Roller

Figure 1 is a perspective view of the present invention.

Figure 2 is an exploded configuration view of the present invention.

Fig. 3 is a schematic view showing the preparation of the detaching link in the chain of the actuating portion of the present invention.

Fig. 4 is a schematic view showing that the operating portion of the present invention is biased by the grip portion and the recessed portion is detached from the link.

Fig. 5 is a schematic view showing the actuating portion of the present invention inserted into the chain to prepare a fastening link.

Fig. 6 is a schematic view showing that the actuating portion of the present invention applies a force to the grip portion and then the recessed portion engages the link.

Fig. 7 is a schematic view showing the engaging portion of the present invention for applying a force to the grip portion and the front concave portion engaging the link.

Figure 8 is a schematic view of a conventional chain assembled with a quick-disconnectable link.

Figure 9 is a schematic view of a conventional chain with a pliers fastening link.

Figure 10 is a schematic view of the conventional chain with the other pliers removed from the chain link.

Referring to Figures 1 through 7, the structure of the embodiment selected for use in the present invention is for illustrative purposes only and is not limited by such structure in the patent application.

The embodiment provides a chain tool for fastening and detaching the link that can be quickly disassembled, as shown in FIGS. 1 to 2, including a first pliers member 1 and a second pliers member 2, wherein :

As shown in FIGS. 1 and 2, the first pliers member 1 has a body portion 11, a grip portion 12, and an actuating portion 13, and the grip portion 12 is extended by the body portion 11, and the actuating portion 13 and the grip portion 12 are respectively Located on opposite sides of the body 11.

As shown in FIGS. 1 to 2, the second pliers member 2 has a body portion 21, a grip portion 22, and an actuating portion 23, the grip portion 22 is extended by the body portion 21, and the actuating portion 23 and the grip portion 22 are respectively Located on opposite sides of the body 21.

As shown in FIGS. 1 to 2, the body portion 11 of the first pliers member 1 and the body portion 21 of the second pliers member 2 are pivotally connected by a pivoting member 3, and the grip portion 12 of the first pliers member 1 is 12 The position of the actuating portion 13 and the grip portion 22 of the second pliers member 2 and the actuating portion 23 are symmetrical with each other, and the actuating portion 13 of the first pliers member 1 and the actuating portion 23 of the second pliers member 2 are also symmetrically disposed.

As shown in FIGS. 1 to 2, the opposite sides of the actuating portion 13 of the first pliers member 1 in the pivoting direction of the body portion 11 respectively have a force applying side 131 and a reverse side 132; the second pliers member 2 The opposite sides of the actuating portion 23 with respect to the pivoting direction of the body portion 21 also have a force applying side 231 and a reverse side 232, respectively.

In the embodiment, the actuating portion 13 of the first pliers member 1 has a front concave portion 133 and a rear concave portion 134 on the force applying side 131. The front concave portion 133 is located at the end of the actuating portion 13, and The rear recessed portion 134 is located at the root of the actuating portion 13; the actuating portion 23 of the second pliers member 2 also has a front recessed portion 233 and a rear recessed portion 234 on the biasing side 231. The front recessed portion 233 is located at The end of the actuating portion 23 is located at the root of the actuating portion 23.

When the grip portion 12 of the first pliers member 1 and the grip portion 22 of the second pliers member 2 are opened, the biasing side 131 of the actuating portion 13 faces the biasing side 231 of the actuating portion 23, and the opposite of the actuating portion 13 The side 132 is opposite to the opposite side 232 of the actuating portion 23; when the grip portion 12 of the first pliers member 1 and the grip portion 22 of the second pliers member 2 are closed, the opposite side 132 of the actuating portion 13 and the actuating portion 23 The opposite side 232 faces, and the biasing side 131 of the actuating portion 13 is opposite to the biasing side 231 of the actuating portion 23.

As shown in FIG. 3, the two ends of a chain 4 are fastened by a quick-disconnecting link 5, and if the link 5 is to be detached, the first clamp is as described above. The grip portion 12 of the first pliers member 2 and the grip portion 22 of the second pliers member 2 are opened. At this time, since the distance between the biasing side 131 and the biasing side 231 is greater than two adjacent rollers in the link 5 The outer side of the 51 is spaced apart, so that the actuating portion 13 and the actuating portion 23 can be placed in the chain 4 to be positioned outside the two rollers 51, and as shown in FIG. 4, the grip portion 12 and the grip portion 22 are biased. The concave portion 134 after the biasing side 131 and the concave portion 234 after the biasing side 231 are respectively attached to the outer sides of the two rollers 51, and the two rollers 51 are displaced in the relatively close direction. The chain link 5 is detached so that the chain 4 can be repaired or cleaned.

As shown in FIG. 5, if the chain link 5 is to be engaged after the chain 4 is repaired or cleaned, the grip portion 12 of the first pliers member 1 and the second pliers member 2 are gripped as described above. The portion 22 is closed. At this time, since the distance between the biasing side 131 and the biasing side 231 is greater than the distance between the inner sides of the two rollers 51, the actuating portion 13 and the actuating portion 23 can be placed in the chain 4 in an overlapping state. The inner portion is located on the inner side of the two rollers 51, and as shown in FIG. 6, the grip portion 12 and the grip portion 22 are biased relatively far apart, and the recessed portion 134 and the biasing force are applied to the biasing side 131. After the side 231, the concave portion 234 is respectively attached to the inner side of the two rollers 51, or as shown in FIG. 7, the concave portion 133 before the biasing side 131 and the concave portion 233 before the biasing side 231 are respectively attached to the two rollers. The inner side of the 51 can drive the two rollers 51 to move in a relatively distant direction, and then the link 5 can be returned to the engaged state.

It is not difficult to find the advantages of the present invention from the above description, in that the fastening and detaching of the above-mentioned quick-disassembling link are completed by different clamps, and the problem of carrying and use is inconvenient, and the chain of the present invention is reversed. The tool can complete the fastening and detaching of the quick-disconnectable link with a single tool. In contrast, the chain tool of the present invention only occupies a tool space and is convenient to carry, and a single tool can avoid confusion and misuse. The problem of misuse occurs, but it can also be used in the disassembly and assembly of the chain.

The above description of the embodiments is intended to be illustrative of the invention and is not intended to limit the scope of the invention.

From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objects and is in accordance with the provisions of the Patent Law.

1‧‧‧First pliers

11‧‧‧ Body

12‧‧ ‧ grip

13‧‧‧Operation Department

131‧‧‧ force side

132‧‧‧The opposite side

133‧‧‧Front recess

134‧‧‧ After recession

2‧‧‧Second pliers

21‧‧‧ Body

22‧‧‧ grip

23‧‧‧Operation Department

231‧‧‧ force side

232‧‧‧reverse

233‧‧‧Front recess

234‧‧‧ After recession

3‧‧‧ pivotal parts

Claims (2)

A chain tool for fastening and detaching a link that can be quickly disassembled, comprising two pliers members, each pliers having a body, a grip extending from the body, and a grip The parts are respectively located on the opposite sides of the body; the body parts of the two pliers are pivotally connected by a pivoting member, and the positions of the grip portions of the two pliers members and the actuating portion are symmetrical with each other, and the two pliers members are The actuating portions are also symmetrically disposed, and the actuating portions of the respective pliers members respectively have a force applying side and a reverse side with respect to opposite sides of the pivoting direction of the body portion; when the grip portions of the two pliers members are opened, the two actuating portions are applied The force side faces oppositely and the opposite side is opposite, and the distance between the two force applying sides in the opposite direction may be greater than the distance between the two outer sides of the adjacent rollers in the chain link; when the grip portion of the second pliers member is closed, the two actuating portions are The opposite sides face each other and the force-applying side is opposite, and the distance between the two force-applying sides on the opposite sides may be greater than the distance between the inner sides of the two rollers. The chain tool according to claim 1, wherein the actuating portion of each of the pliers members has a front concave portion at an end portion of the acting portion on the biasing side, and a back concave portion at a root portion of the acting portion The inlet portion and the front concave portion and the rear concave portion are respectively attached to the roller circumferential side.