KR19990019947A - Tool for fastening bolts and nuts - Google Patents

Abstract

The present invention relates to a tool for fastening bolts and nuts, the tool being inserted into the connector of the wrench to fasten or release the bolt and nut, the small end having a coupling groove formed in the upper portion to be fitted to the outer diameter of the connector of the wrench And a first socket formed of a large end having a lower end of the small end portion integrally protruded, a second socket guide groove formed on both sides in a vertical direction, and an insertion groove formed on an inner diameter thereof, and being in close contact with the outer diameter of the first socket. The second socket catching jaw is formed on both sides of the upper inner diameter so as to be moved up and down by being located in the second socket guide groove, and the one side of the second socket catching jaw is integrally formed vertically upwardly. By forming an arc-shaped second socket hole in the inside of the wrench body so that the two sockets and the second socket control lever protrude to be bolted to the fastening piece. It can be used in various ways depending on the size of the bolt and nut without replacing the socket, not only to reduce the working time but also to improve the work efficiency.

Description

Tool for fastening bolts and nuts

The present invention relates to a tool for fastening bolts and nuts, in particular, the second and third sockets are installed in the outer diameter of the first socket to be fitted to the connector formed on one side of the body of the wrench, and the arc of the wrench is formed inside the body. By forming the second and third socket holes, it can be used in various ways according to the size of the bolt and nut without replacing the socket, which can shorten the working time and improve the working efficiency. It's about.

Generally, tools such as spanners and wrenches are used to fasten or release bolts and nuts. The dual wrench inserts sockets of various sizes into the wrench body and can be used selectively depending on the size of the bolts and nuts.

1 is a cross-sectional view of a conventional bolt and nut fastening tool.

As shown in the figure, the wrench 10 has a handle portion 11 formed at one end thereof, and a body 12 formed by maintaining a proper length at the other end so as to extend from one end of the handle portion 11 and the body 12. Consists of a connector 13 formed integrally with one side of the.

In addition, the insertion groove 13a is formed at a predetermined position of the outer diameter of the connector 13, and the spring 14 and the support ball 15 are sequentially inserted into the insertion groove 13a.

In addition, a coupling groove 21 formed in the socket 20 is fitted into the connector 13 of the wrench 10, and an insertion groove 22 is formed at a lower portion thereof so as to communicate with the coupling groove 21 of the socket 20. The head of the bolt and nut is inserted, the locking groove 22 of the socket 20 is caught by the bolt and nut is formed with a locking portion (22a) to improve the rotational force.

The engaging groove 21 of the socket 20 is formed with a locking groove 21a into which the support ball 15 installed in the connector 13 of the wrench 10 is inserted.

The conventional fastening tool configured as described above uses bolts and nuts to fasten various parts, and the like. The fasteners 13 formed on one side of the body 12 of the wrench 10 to fasten or release the bolts and nuts. ) Fit the coupling groove 21 of the socket 20 to the size of the bolt and nut to the outer diameter. Then, the support ball 15 inserted into the insertion groove 13a of the outer diameter of the connector 13 is caught by the engaging groove 21a formed in the coupling groove 21 of the socket 20 by the elastic force of the spring 14 so that the socket ( 20) is installed.

In this state, insert the insertion groove 22 of the socket 20 into the nut and the head of the bolt to closely contact, then hold the handle portion 11 of the wrench 10 to rotate the bolt and nut is fastened, if the reverse rotation bolt And the nut is released. At this time, the engaging portion (22a) formed in the inner diameter of the insertion groove 22 of the socket 20 is in close contact with the head of the bolt and nut to improve the rotational force.

However, such a conventional fastening tool has to be used by selectively replacing the socket 20 suitable for the size of the bolt and nut in the connector 13 of the wrench 10 in order to fasten or release the bolt and nut to various parts. There was an inconvenience, and therefore there was a problem that takes a lot of work time.

The present invention has been made to solve the conventional problems as described above, the technical problem of the present invention is to install the second and third sockets on the outer diameter of the first socket fitted to the connector formed on one side of the body of the wrench, the wrench The second and third socket holes in the shape of the arc are formed inside the body of the product so that they can be selectively used according to the size of the bolts and nuts without replacing the socket, which can shorten the working time and improve the work efficiency. To provide a tool for fastening bolts and nuts.

Technical problem of the present invention as described above is a tool inserted into the connector of the wrench so that the bolt and nut can be fastened or released, the small end portion formed with a coupling groove in the upper portion to be fitted to the outer diameter of the connector, The lower end of the end is integrally spoken, and the two socket guide grooves are formed in the vertical direction on both sides thereof, and the inner socket is in close contact with the outer diameter of the first socket and the second socket guide. The second socket engaging jaw is formed on both sides of the upper portion of the inner diameter so as to be located in the groove so as to move up and down, and on one side of the second socket engaging jaw, the second socket adjusting lever is integrally formed vertically upward; It is achieved by forming an arc-shaped second socket hole in the inside of the wrench body so that the second socket control lever protrudes and is bolted to the fastening piece. .

1 is a cross-sectional view of a conventional bolt and nut fastening tool,

2 is a perspective view of the present invention,

3 is a cross-sectional view of the present invention,

Figure 4 (a), (b) is a cross-sectional view of the use state of the bolt and nut fastening tool of the present invention.

<Explanation of symbols for main parts of drawing>

100: wrench 101: body

101a: second socket through hole 101b: third socket through hole

102: connector 110: the first socket

111: small end 111a: coupling groove

112: large end 112a: second socket guide groove

112b, 124: Third socket guide groove 113: Insertion groove

120: second socket 121: second socket locking jaw

122: second socket control lever 130: third socket

131: third socket locking jaw 132: third socket adjustment lever

140: Fastening piece

The present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a bottom perspective view of the present invention, Figure 3 is a cross-sectional view of the present invention, Figure 4 (a), (b) is a cross-sectional view of the use state of the bolt and nut fastening tool of the present invention.

As illustrated, the wrench 100 has a handle portion 103 formed at one end thereof, and maintains a proper length at the other end so as to extend from one end of the handle portion 103 and has an arc-shaped second and third socket through hole therein. Body 101 formed with 101a, 101b, a connector 102 integrally formed on one side of the body 101, the first socket 110 to be fitted to the connector 102, the first The second socket 120 is installed on the outer diameter of the first socket 110, and the third socket 130 is installed on the outer diameter of the second socket 120.

The insertion groove 104 is formed at a predetermined position of the outer diameter of the connector 102 formed on one side of the body 101 of the wrench 100, and the spring 105 and the support ball 106 are inserted into the insertion groove 104. ) Are inserted sequentially.

The first socket 110 includes a small end 111 having a coupling groove 111a formed at an upper portion thereof so as to fit into an outer diameter of the connector 102 of the wrench 100, and a lower end of the small end 111. A second socket guide groove 112a is formed in both sides and is vertically formed on both sides, and an inner diameter is formed of a large end portion 112 having an insertion groove 113 formed therein, and the second socket 120 includes a first socket. It is installed on the outer diameter of 110, the second socket guide groove (112a) is seated on the upper side of the inner diameter so as to be moved up and down, forming a second socket engaging jaw 121, the second socket engaging jaw The second socket adjustment lever 122 is integrally formed vertically upward at one side of the 121, and the second socket adjustment lever 122 is formed inside the body 101 of the wrench 100. Protruding to (101a) is bolted to the fastening piece 140.

The engaging groove 111a of the first socket 110 is provided with a locking groove 114 into which the support ball 106 installed in the connector 102 of the wrench 100 is inserted.

In addition, the third socket 130 is installed on the outer diameter of the second socket 120, the third socket engaging jaw 131 is formed on both sides of the upper inner diameter, the third socket engaging jaw 131 is located The second socket guide groove 112a of the first socket 110 and the second socket catching jaw 121 formed at the inner diameter of the second socket 120 so as to be moved up and down by a predetermined distance. The three socket guide grooves 112b and 124 are formed vertically, and a third socket adjustment lever 132 is integrally formed vertically upward at one side of the third socket catching jaw 131, and the third socket adjustment is performed. The lever 132 protrudes into the third socket through hole 101b formed in the body 101 of the wrench 100 and is bolted to the fastening piece 140.

In addition, insertion grooves 113, 123, and 133 for inserting bolts and nuts are formed in the lower portions of the first, second and third sockets 110, 120, 130, and the insertion grooves. On the inner surfaces of the 113, 123, and 133, engaging portions 113a, 123a, 133a for improving the rotational force of the first, second, third sockets 110, 120, 130 are formed.

Referring to the operation of the present invention configured as described above in detail.

As shown in FIG. 4 (a), in order to fasten or release the bolt and the nut using the second socket 120, the second socket control lever 122 protruding from the wrench 101 body 101 is left. When moved to the right, the second socket 120 having the second socket locking jaw 121 protruding from the inner diameter rotates along the outer diameter of the first socket 110. Thus, while the second socket 120 rotates along the outer diameter of the first socket 110, the second socket catching jaw 121 formed at the inner diameter of the second socket 120 is the second socket guide of the first socket 110. When positioned in the groove 112a, the second socket catching jaw 121 descends downward along the second socket guide groove 112a and the second socket 120 is taken out. In this state, the insertion groove 123 of the second socket 120 is inserted into the head of the bolt and nut, and then, when the handle 103 of the wrench 100 is rotated, the bolt and nut are fastened or released.

Then, when the fastening or releasing of the bolts and nuts to the various parts is a little pushed by the lower end of the second socket 120 by hand, the second socket engaging jaw 121 formed in the inner diameter of the second socket 120 is first It moves upward along the two socket guide grooves 112a. Then, when the second socket catching jaw 121 is positioned above the second socket guide groove 112a, the second socket adjustment lever 122 may be rotated left and right to store the second socket 120.

And, as shown in Figure 4 (b) in order to fasten or release the bolt and nut using the third socket 130, the third socket control lever 132 protruding from the body of the wrench (100) (101) When moved to the left and right, the third socket 130 having the third socket engaging jaw 131 protruding from the inner diameter rotates along the outer diameter of the second socket 120. As such, the third socket catching jaw 131 formed to protrude into the inner diameter of the third socket 130 while the third socket 130 rotates along the outer diameter of the second socket 120 is the second socket of the first socket 110. When the third socket guide grooves 112b and 124 are positioned at a predetermined distance from the second socket catching jaw 121 formed at the inner diameters of the guide grooves 112a and the second socket 120, the third sockets are caught. The jaw 131 descends downward along the third socket guide grooves 112b and 124 so that the third socket 130 is taken out. In this state, the insertion groove 133 of the third socket 130 is inserted into the head of the bolt and nut, and then, when the handle 103 of the wrench 100 is rotated, the bolt and nut are fastened or released.

Then, when the fastening or releasing of the bolts and nuts to the various parts is pushed slightly by hand the lower end of the third socket 130 by hand, the third socket engaging jaw 131 formed in the inner diameter of the third socket 130 It moves upward along the three socket guide grooves (112b) (124). Then, when the third socket catching jaw 131 is positioned above the third socket guide groove 112b, 124, the third socket adjustment lever 132 may be rotated left and right to store the third socket 130. .

In addition, in order to fasten or release the bolt and nut using the first socket 110, as shown in FIG. 3, the insertion groove 113 of the first socket 110 is inserted into the head of the bolt and nut. Next, when the knob 103 of the wrench 100 is rotated, the bolt and nut are fastened or released.

Thus, according to the bolt and nut fastening tool of the present invention, the first socket (fitted to the connector 102 formed on one side of the body 101 of the wrench 100 so as to fasten or release the bolt and nut to various parts, etc. 110, and the second and third sockets 120 and 130 are installed in the outer diameter of the first socket 110, and the second and third socket holes having an arc shape are formed inside the body 101 of the wrench 100. By forming the 101a) (101b) can be used in various ways depending on the size of the bolt and nut without replacing the socket, it is an invention that can not only shorten the working time but also improve the work efficiency.

Claims (2)

In the tool inserted into the connector of the wrench 100 so that the bolt and nut can be fastened or released, the small end portion in which the coupling groove 111a is formed at an upper portion thereof so as to fit into the outer diameter of the connector 101 of the wrench 100. 111 and a lower end of the small end 111 are integrally formed, and a second socket guide groove 112a is formed on both sides in a vertical direction, and an inner diameter is formed of a large end 112 having an insertion groove 113 formed therein. The first socket 110 and the first socket 110 is in close contact with the outer diameter of the second socket guide groove 112a so as to move up and down, the second socket engaging jaw 121 on both sides of the upper inner diameter And a second socket adjustment lever 122 formed at one side of the second socket locking jaw 121 so that the second socket adjustment lever 122 is vertically upward and the second socket adjustment lever 122. The second arc-shaped second inside the body 101 of the wrench 100 so that it is protruded to be bolted to the fastening piece 140 Bolt and nut fastening tool, characterized in that the socket hole (101a) is formed. According to claim 1, In the outer diameter of the second socket 120, the third socket engaging jaw 131 is formed on both sides of the upper inner diameter, the third socket engaging jaw 131 is located can be moved up and down The third socket guide groove 112b at a position spaced apart from the second socket catching jaw 121 formed at the inner diameter of the second socket guide groove 112a and the second socket 120 of the first socket 110 so as to be provided. 124 is formed vertically, one side of the second socket engaging jaw 121, the third socket 130 is formed integrally with the third socket adjustment lever 132 vertically upwards, the first The third socket control lever 132 of the three sockets 130 are protruded to be bolted to the fastening piece 140 so that the inside of the wrench 100, the body 101 corresponds to the second socket through hole (101a) Bolt and nut fastening tool, characterized in that the arc-shaped third socket hole (101b) formed in the position.