KR20100123291A - Length variable t type wrench - Google Patents

Abstract

The present invention relates to a T-shaped wrench that is variable in length, and more particularly, a guide socket in which a bit rod is slidably inserted into a multi-member bit rod and a structure in which both ends are opened in the longitudinal direction of the bit rod; The present invention relates to a T-shaped wrench having a variable length including a body part into which the guide socket is slidably inserted through an open lower end and a swivel installed through the top of the body part in a direction crossing the body part. According to the present invention, by replacing only the bit rod tightening the bolt regardless of the size and shape of the bolt when assembling the bolt of the mold machine, the effect of reducing the cost and the cost of manufacturing the wrench individually according to the bolt There is.

Description

Length variable T type wrench}

The present invention relates to a wrench, and more particularly, to a T-shaped wrench having a variable length used for fastening bolts in assembling a mold machine.

A wrench is a tool used to fasten and disassemble a fastening member, such as a bolt or nut, which has a groove in the center thereof, in an assembly in a mechanical apparatus such as an assembly of a mold apparatus and a semiconductor equipment. A work tool used to fasten and disassemble bolts or nuts located in deep spaces where it is impossible to use a flat spanner.

In general, the wrench is generally composed of a rod body formed with a bit fitted into the groove of the fastening member such as a bolt or nut, and a handle portion for forward and reverse rotation of the rod body.

For such a general wrench, "Forged Hex Wrench" of the Republic of Korea Utility Model Publication No. 20-0257228 (registered November 30, 2001), Republic of Korea Patent Publication No. 10-2006-0016150 (February 22, 2006) "L-shaped wrench for preventing loss" and "Assembly tightening wrench" of the Republic of Korea Patent Publication No. 10-2005-0116258 (published December 12, 2005).

In the case of the disclosed inventions and inventions, the shape is all made of an L-shaped wrench. This L-shaped wrench will be described in more detail with reference to the drawings.

1 is a perspective view showing a wrench used to assemble a conventional assembly. Referring to FIG. 1, a wrench 10 used to assemble a conventional assembly A includes a rod 11 having a bit fitted into a groove 21 of a fastening member 20 such as a bolt or a nut, and It consists of a structure including a handle portion 12 for forward and reverse rotation of the rod (11).

The rod 11 is preferably in the shape of a square, hexagon and star according to the shape of the fastening member 20 such as bolts or nuts to be fastened.

And the handle portion 12 is formed at one end in the rod 11, it is preferable that the bent in the direction perpendicular to the rod 11 in order to facilitate forward and reverse rotation of the rod (11).

However, in the conventional wrench 10 as described above, when the wrench 10 is forcibly rotated in the process of tightening or releasing the fastening member 20, a fastening member such as a bolt or nut, which is a bit or a counterpart formed on the rod 11, is formed. There is a problem in that the grooves 21 formed in the (20) friction with each other wear occurs.

In particular, in the case of the L-shaped wrench 10, when the fastening and disassembly of the fastening member 20, such as a bolt or nut, the rotational moment is assigned to the end of the handle 12 bent in one direction, so that the wrench 10 The rotation shaft is not stable, which causes a problem that the wrench 10 is separated from the fastening member 20.

In addition, if the work is performed while the wrench 10 is not completely in contact with the fastening member 20 such as the bolt or nut as the counterpart when the bolt or assembly is disassembled, the bolt may fall off the wrench 10 and be lost. There is a problem that takes a lot of time to work.

And the fastening member 20 applied to assemble the assembly (A) is bound to vary greatly in size and shape depending on the size and shape of the assembly (A).

Therefore, since the shape or diameter of the wrench 10 to be applied depends on the shape and size of the fastening member 20, there is a hassle of having to have a wrench 10 having various shapes and diameters in the workplace at all times.

In addition, there is a problem in that the efficiency of the work is lowered and the working time is further increased because the wrench 10 suitable for the fastening member 20 is used every time during the work.

In addition, there is a problem in that a large manufacturing cost is required even when manufacturing the wrench 10 having various shapes and diameters.

SUMMARY OF THE INVENTION An object of the present invention devised to solve the above problems is to provide a T-shaped wrench having a variable length that can only replace a bit rod tightening the bolt regardless of the size and shape of the bolt when assembling the bolt of the mold machine. have.

In addition, an additional problem of the present invention is to provide a T-shaped wrench capable of varying the length that can vary the length of the bit bar tightening the bolt when assembling the bolt of the mold machine.

In addition, an additional object of the present invention is to provide a T-shaped wrench that can be changed in length to rotate the bolt in a short time with a small force when assembling the bolt of the mold machine.

The present invention devised in order to solve the above problems, a multi-layered bit rod of the metal material, consisting of a structure in which both ends are opened in the longitudinal direction of the bit rod guide socket for sliding the insertion rod, the open lower end It includes a body portion through which the guide socket is slidingly inserted and a swivel installed through the top of the body portion in a direction crossing the body portion.

The guide socket may be formed of a collet type having a plurality of tapered surfaces facing each other and having a predetermined inclined surface and a fastening groove formed between the respective tapered surfaces.

The guide socket is characterized in that a plurality of insertion holes are formed in the longitudinal direction of the bit rod on the outer diameter surface.

The body portion has a plurality of fastening holes are formed in the longitudinal direction of the bit rod on the outer diameter surface, characterized in that it comprises a predetermined pressing member screwed to the fastening hole.

The pressing member is characterized in that the tanned bolt.

The tannery bolt screwed to the fastening hole is rotated to press the bit rod located inside the guide socket through the insertion hole.

The pressing member is characterized in that the ball flanger.

The bit rod is characterized in that the predetermined flanger groove is formed at regular intervals along the longitudinal direction on the outer diameter surface.

The body portion is characterized in that it further comprises a rotary handle installed on the outer diameter surface and a locking projection for preventing the separation of the rotary handle from the body portion.

The present invention has the effect of reducing the hassle of applying the wrench individually according to the bolts and the cost required to manufacture them by replacing only the bit bar tightening the bolts regardless of the size and shape of the bolts when assembling the bolt of the mold machine .

In addition, the secondary object of the present invention is to change the length of the bit bar tightening the bolt when assembling the bolt of the mold machine has an effect that can quickly cope with various working environments.

In addition, the secondary object of the present invention is to be able to rotate the bolt in a short time with a small force when assembling the bolt of the mold machine can prevent the wear of the bolt and the bit bar tightening it and further has the effect of shortening the working time.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the variable length T-shaped wrench according to the present invention.

Figure 2 is a perspective view showing a T-type wrench is variable in length according to the first embodiment of the present invention, Figure 3 is a guide socket in the T-type wrench is variable in length according to the first embodiment of the present invention of FIG. Is a perspective view.

2 and 3, the T-shaped wrench according to the first embodiment of the present invention includes a bit rod 100, a guide socket 200, a body part 300, and a swivel 400. It is made up of components that are described in detail as follows.

The bit rod 100 is made of metal and is formed of polygonal bits. At this time, the bit is preferably any one of a square, a hexagon, a star shape, square or hexagon.

The bit rod 100 is inserted into a groove formed in a fastening member (not shown) such as a bolt or a nut for assembling the assembly in assembling a mechanical apparatus used in a general industry such as a mold apparatus and a semiconductor equipment apparatus. Reverse fastening the fastening member enables the fastening member to be fastened to the assembly.

The guide socket 200 has a structure in which both ends are open in the longitudinal direction of the bit rod 100, and the bit rod 100 is inserted into the guide socket 200 by sliding.

The body portion 300 has a structure in which the lower end is opened, and the guide socket 200 is inserted into the sliding through the open lower end.

Here, the guide socket 200 includes a plurality of tapered surfaces 210 formed of predetermined inclined surfaces facing each other, and tightening grooves 220 formed between the respective tapered surfaces 210.

That is, the guide socket 200 is a collet type in which the width thereof gradually widens toward the lower direction side in which the bit rod 100 is slidingly inserted.

Therefore, the length of the adjustable bit rod 100 is accommodated in the guide socket 200 of the collet type, and the guide socket 200 is accommodated in the body portion 300 is accommodated by the bit rod 100 The bit rod 100 is fixed inside the guide socket 200.

That is, when the collet-type guide socket 200 is inserted into the body 300, the gap between the plurality of tapered surfaces 210 is reduced by the fastening groove 220, and thus the plurality of tapered surfaces ( The bit rod 100 is fixed by pressing the outer diameter surface of the bit rod 100.

And the body portion 300 has a swivel table 400 at the top. The swivel table 400 is installed to penetrate the upper end of the body portion 300 in the direction crossing the body portion 300.

The body portion 300 into which the bit rod 100 is inserted by the rotating table 400 rotates, and when the fastening member is fastened, the rotating moment is transmitted to both ends of the rotating table 400, thereby making the rotation more stable. The time for fastening the fastening member can be shortened, and furthermore, the bit rod 100 can be prevented from being separated from the fastening member.

4 is a perspective view showing a T-type wrench of variable length according to a second embodiment of the present invention, and FIG. 5 is an exploded perspective view of a T-type wrench of variable length according to a second embodiment of the present invention. 6 is a front view and an operating state diagram showing a T-shaped wrench having a variable length according to a second embodiment of the present invention.

4 to 6, the T-shaped wrench according to the second embodiment of the present invention is variable in length, the bit bar 100, the guide socket 200, the body portion 300 and the swivel 400 Consisting of components that include

In the outer diameter surface of the guide socket 200, a plurality of insertion holes 230 are formed in the longitudinal direction of the bit rod 100.

In addition, the body 300 has a plurality of fastening holes 310 formed in the longitudinal direction of the bit rod 100 on an outer diameter surface thereof, and a predetermined pressing member 320 is screwed to the fastening holes 310.

That is, when the guide socket 200 in which the bit rod 100 is accommodated is slidably inserted into the body 300, the pressing member 320 is screwed through the fastening hole 310. At this time, the pressing member 320, which is rotated and screwed to the fastening hole 310, passes through the insertion hole 230 formed on the outer diameter surface of the guide socket 200 and is located inside the guide socket 200. Pressurize the rod 100.

Therefore, the bit rod 100 is pressed by the pressing member 320 so that the bit rod 100 is fixedly installed in the guide socket 200.

On the other hand, the pressing member 320 is preferably a tanned bolt (set screw) (321).

That is, the headless bolt 321 has a head formed in the general bolt compared to the general bolt consisting of a body formed with a head and a screw thread, so that the head to the outside of the body portion 300 when screwed to the body portion 300 Since it does not protrude, the body rotates during operation, thereby preventing the external device from being damaged by scratches, etc. by the head of the bolt.

On the other hand, it is preferable that the rotary knob 330 is further installed on the outer diameter surface of the body portion 300. This is because the worker rotates the body 300, the rotary knob 330 is installed on the outer diameter surface of the body 300, it is possible to rotate the body 300 more quickly to facilitate the work It works.

In addition, a locking protrusion 340 may be further formed on an outer diameter surface of the body 300 to prevent the rotation of the rotary knob 330 from the body 300. In this case, preferably, the locking protrusion 340 is positioned below the rotary knob 330 to prevent the rotary knob 330 from falling from the body 300.

Here, the guide socket 200 is formed by the plurality of insertion holes 230 formed in the outer diameter surface of the guide socket 200 and the plurality of fastening holes 310 formed in the outer diameter surface of the body portion 300 corresponding thereto. ) Can be fixed to the bit rod 100 is slidingly inserted.

FIG. 7 is a cross-sectional view illustrating a contact state between a ball rod and a bit bar in which a flanger groove is formed in a T-shaped wrench having a variable length according to a third embodiment of the present invention.

Referring to FIG. 7, the T-shaped wrench having a variable length according to a third embodiment of the present invention includes a component including a bit rod 100, a guide socket 200, a body part 300, and a swivel 400. Consisting of,

The bit rod 100 has a predetermined flanger groove 110 is formed at regular intervals along the longitudinal direction on the outer diameter surface, the pressing member 322 is preferably a ball flanger (322).

Here, the ball flanger 322 is composed of a spring 3221 and a ball 3222, the ball 3222 and the bit rod (contacting the flanger groove 110 to fix the bit rod 100) A spring 3221 is provided to allow adjustment of the length of 100.

Such a structure may adjust the length of the bit rod 100 slidingly inserted into the guide socket 200.

That is, the worker selectively screwes the pressure member 320 to the fastening hole according to the working environment so that the pressure member 320 passes through the insertion hole 230 corresponding to the fastening hole 310. By pressing the rod 100, the length of the bit rod 100 is adjusted.

In addition, even when a large diameter rod bar 100 is used to correspond to the size of the fastening member applied to the assembly, the bit rod 100 in the guide socket 200 regardless of the diameter of the bit rod 100. By inserting the) is fixed by the pressing member 320 has the effect of eliminating the hassle of having to individually provide a wrench according to the size and shape of the fastening member applied to the assembly.

In the above, the present invention has been described based on the preferred embodiments, but the technical idea of the present invention is not limited thereto, and modifications or changes can be made within the scope of the claims. It will be apparent to those skilled in the art, and such modifications and variations will belong to the appended claims.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention, and therefore, the present invention is limited only to the matters described in the drawings. It should not be interpreted.

1 is a perspective view showing a wrench used to assemble a conventional assembly,

Figure 2 is a perspective view showing a T-type wrench is variable in length according to the first embodiment of the present invention,

Figure 3 is a perspective view showing a guide socket in the T-shaped wrench is variable in length according to the first embodiment of the present invention of Figure 2,

Figure 4 is a perspective view showing a T-type wrench is variable in length according to a second embodiment of the present invention,

5 is an exploded perspective view showing a T-shaped wrench having a variable length according to a second embodiment of the present invention;

6 is a front view and an operating state diagram showing a T-type wrench having a variable length according to a second embodiment of the present invention;

FIG. 7 is a cross-sectional view illustrating a contact state between a ball rod and a bit bar in which a flanger groove is formed in a T-shaped wrench having a variable length according to a third embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: beet rod 110: plunger groove

200: guide socket 210: tapered surface

220: tightening groove 230: insertion hole

300: body 310: fastening hole

320: fastening member 321: tanned bolt

322: ball flanger 330: rotary knob

340: jamming

Claims (9)

Multiple beet rods made of metal; A guide socket having a structure in which both ends of the bit rod are opened in a longitudinal direction of the bit rod, the guide socket being slidingly inserted; A body part in which the guide socket is slidably inserted through an open lower end; And T-shaped wrench having a variable length including a swivel installed through the upper portion of the body portion in a direction crossing the body portion. The method of claim 1, wherein the guide socket, A plurality of tapered surfaces facing each other and having a predetermined inclined surface; And T-shaped wrench having a variable length, characterized in that made of a collet type having a tightening groove formed between each tapered surface. The method of claim 1, wherein the guide socket, T-shaped wrench having a variable length, characterized in that a plurality of insertion holes formed in the longitudinal direction of the bit rod on the outer diameter surface. According to claim 1 or 3, wherein the body portion, T-shaped wrench having a variable length, characterized in that a plurality of fastening holes are formed in the longitudinal direction of the bit rod on the outer diameter surface, and provided with a predetermined pressing member screwed to the fastening holes. The method of claim 4, wherein The pressurizing member is a T-type wrench capable of variable length, characterized in that the tanned bolt. The method of claim 5, T-shaped wrench having a variable length, characterized in that the threaded bolt screwed to the fastening hole is rotated to press the bit rod located inside the guide socket through the insertion hole. The method of claim 4, wherein The pressing member is variable in length T-type wrench, characterized in that the ball flanger. The method of claim 1, wherein the beet rods, T-shaped wrench having a variable length, characterized in that the predetermined flanger groove is formed at regular intervals along the longitudinal direction on the outer diameter surface. The method of claim 1, wherein the body portion, A rotary knob installed on the outer surface; And T-shaped wrench is variable in length characterized in that it further comprises a locking projection for preventing the detachment of the rotary handle from the body portion.

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