KR200446608Y1 - Open type wrench - Google Patents

Abstract

The present invention relates to an open type wrench (Wrench) for assembling a gland, a head portion in which the socket portion into which the head of the bolt is inserted is opened to one side, and a handle extending to one side of the head portion. It has a portion, and one side of the socket portion is formed with a locking jaw is caught by the periphery of the head, a plurality of triangular projections are formed on the inner circumference of the socket so that the edge of the bolt head can be caught, the bolt head on the inner circumference of the locking jaw In the open-type wrench is formed so that the engaging groove formed in the engaging, it is used to tighten or loosen the gear type hexagon cable gland; The fitting protrusion is provided with a vertical surface formed perpendicular to the locking jaw, and an inclined surface formed to be inclined in the other direction of the vertical surface to provide an open wrench, characterized in that configured to be caught only in one direction.

According to the present invention, the cable is inserted in the center and the head is formed in various shapes, and the operator can easily tighten and loosen the gland while the gaps between the glands are densely arranged, thereby improving productivity. This has the effect of improving workforce, reducing workforce and reducing work time.

Wrench, Socket, Open

Description

Open Wrench {OPEN TYPE WRENCH}

The present invention relates to an open wrench for assembling a gland, and more particularly, to easily and conveniently fix a gland for fixing the panel and the wires so that the wires connected to the electric panel are not separated. An open wrench for tightening or loosening.

Equipment such as semiconductor device manufacturing facilities are provided with a large number of parts fastened to each other by the combination of bolts and nuts, the bolts and nuts are generally tightened or dismantled using a wrench or a wrench. For example, combination wrenches, ring wrenches, socket ratchet wrenches and the like have been widely used.

The wrench 10, which is commonly used among them, has a handle portion 20 for a worker to grip as shown in FIG. 1, and a head portion formed on both sides or one side of the handle portion 20. 30). The head portion 30 is typically formed in an open shape so as to sandwich the head of the bolt or nut from the side.

In addition, the other side of the head portion 30 is formed with a ring wrench head portion 40 having a socket portion formed in a polygonal surface so as to rotate the bolt or nut on the upper surface.

In using the wrench 10 having such a configuration, in the process of engaging the head portion 30 of the wrench 10 with a hexagonal bolt or nut and rotating it through a small angle, the fastening or loosening of the bolt or nut is prevented. Continue until complete.

In the hexagonal bolt or nut as shown in FIG. 2, it is generally necessary to allow the wrench to be turned at least 60 °, ie 1/6 turns, but only 30 ° when the bag is bent at only 15 °. This is because turning the wrench upside down after a 30 ° turn will return the wrench back to its original position.

This wrench 10 is also used to tighten or release the cable gland.

In general, a cable gland for connecting an electric cable to a part of a device such as a junction box is a device for fixing the junction box and the wires so that the wires connected to the junction box do not fall out. When the head of the gland is tightened, the rubber packing in the body is pressed to serve to fix the wire.

3 and 4, the cable gland has a hexagonal cable gland 50 formed of a hexagonal head 52 and a locking groove 64 formed on the outer circumferential surface of the head 62. As shown in FIG. There is a gear type cable gland 60 formed.

Here, the hexagonal cable gland 50 has a head 52 in the form of a hexagon, so that the wrench 10 is typically used to loosen and tighten the head 52.

However, in using such a wrench 10, as shown in FIG. 5, when the cable glands 50 and 60 are densely installed in the junction box J, it is difficult to secure a working copper wire. There is a problem that is very difficult to use the open head portion 30 of the wrench (10).

Therefore, a ring-type wrench that can be used to secure a working copper wire having a narrower angle than that of the open type head part 30 should be used, but as shown in FIG. 5, the cable glands 50 and 60 usually have a cable of about 300 m ( Since 80) is connected, a tool that is not an open type having an open side is difficult to use.

On the other hand, when tightening or loosening the gear type cable gland 60, as shown in Figure 6 wraps the outer peripheral surface of the gear type cable gland 60 by a predetermined range, the gear type cable gland 60 The hook type wrench 70 in which the hook 72 which catches the locking groove 64 formed in () is formed is used.

In using the hook-type wrench 70 having such a configuration, as shown in FIG. 7, the hook-type wrench (not shown) is provided in the engaging groove 64 formed in the head 62 of the gear-type cable gland 60. 70 is inserted into the hook 72 is rotated for tightening or loosening.

As such, when tightening and releasing the gear type cable gland 60 using the hook type wrench 70, the hook 72 is frequently inserted into the catching groove 64 and then removed. Since it must be repeated, the work cannot be completed in a short time, and the work efficiency drops.

The present invention has been made to solve the above-mentioned conventional problems, the purpose of the hexagonal cable gland is installed in a tightly spaced gap in the junction box without the interference between the cable gland of each narrow angle of copper wire It is to provide an open wrench that can be tightened and loosened by using.

In addition, another object of the present invention is to provide an open wrench that can be repeatedly operated without departing from the locking groove formed for tightening and loosening the gear type cable gland.

In order to achieve the above object, the present invention includes a head portion in which a socket portion into which a head of a bolt is inserted is opened to one side, and a handle portion extending to one side of the head portion, and at one side of the socket portion, a peripheral portion of the head. A hooking jaw is formed to be caught, and a plurality of triangular protrusions are formed on the inner circumference of the socket so that the corner of the bolt head can be caught. An open wrench formed to be used to tighten or loosen a geared hexagonal cable gland; The fitting protrusion is provided with a vertical surface formed perpendicular to the locking jaw, and an inclined surface formed to be inclined in the other direction of the vertical surface to provide an open wrench, characterized in that configured to be caught only in one direction.
In addition, the triangular protrusion is also characterized in that formed in 12 angles in 30 ° unit in the socket portion.
In addition, the fitting protrusion is composed of a pair and is characterized in that it is formed to face each other.

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As described above, according to the open-type wrench according to the present invention, the hexagonal cable gland, which is densely installed on the electrical panel by the socket part having the triangular projections on the multi-faceted surface, can be easily loosened and tightened at a small angle. Has the effect.

In addition, by providing a head portion with an open side of the socket portion, there is an effect that the work can be easily inserted into the cable gland to which the long cable is connected.

In addition, since the locking jaw is formed on the side surface of the socket portion formed in the wrench, there is an effect that the wrench can be caught and tightened continuously without being caught off the head portion of the cable gland.

On the other hand, according to the open-type wrench according to the present invention by forming a fitting protrusion protruding a certain length on the latching jaw of the wrench, the loosening and tightening work by walking the head of the wrench to the corner portion formed in the head of the gear-type cable gland is not separated It has an effect that can be done.

In addition, by having a vertical surface formed to be perpendicular to the locking jaw and the inclined surface formed to be inclined in the other direction of the vertical surface to the fitting protrusion formed on the wrench, there is an effect capable of continuously loosening and tightening the head of the cable gland.

In addition, by forming a pair of fitting protrusions on the wrench, there is an effect of transmitting a large force to the head of the cable gland.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail. The same parts as in the prior art will be described with the same reference numerals.

8 is a perspective view showing an open wrench according to a first embodiment of the present invention, FIG. 9 is a perspective view showing a state in which an open wrench according to a first embodiment of the present invention is applied to a cable gland having a hexagon shape, and FIG. 10A Is a plan view showing a state in which the open wrench according to the first embodiment of the present invention is applied to the cable gland of the hexagonal shape, and FIG. 10B shows the open wrench according to the first embodiment of the present invention to the cable gland of the hexagonal shape. 11 is a perspective view illustrating an open wrench according to a second embodiment of the present invention, and FIG. 12 illustrates a state in which an open wrench according to a second embodiment of the present invention is applied to a cable-shaped cable gland. 13A to 13D are partial front views illustrating a work procedure of using an open wrench according to a second embodiment to a cable gland in a gear form.

The open wrench 100 according to the first embodiment of the present invention includes a head portion in which a socket portion 220 into which a head H of a bolt is inserted is opened to one side. 200, and a handle part 300 extending to one side of the head part 200.

Here, the head (H) of the bolt refers to the hexagonal cable gland 400.

The head portion 200 is formed at one end of the handle portion 300, as shown in Figures 8 and 9, the inner side of the head portion 200 is fitted with a hexagonal bolt head (H) well rotated The socket 220 is formed to be made.

Here, a plurality of triangular protrusions 240 are formed on the inner circumference of the socket part 220 so as to take an edge portion (not shown) formed in the bolt head H. As shown in FIG. 8, the triangular protrusion 240 is formed in 12 angles in units of 30 ° from the socket portion 220, and a portion opened at one side of the socket portion 220 cuts off each of the two portions. It may be formed by.

This triangular protrusion 240 has the effect of expanding the range to work even with a small copper wire.

In addition, since the socket portion 220 may be used by inserting the bolt head (H) into a portion that is open at one side, there is an effect that it is convenient to use the hexagonal cable gland 400.

On the other hand, it is formed on one side of the socket portion 220, the locking jaw 260 is formed to take the peripheral portion (周 緣 部) of the head portion 200 is formed. The locking jaw 260 covers the upper surface of the bolt head H, and prevents the open wrench 100 from being separated from the bolt head H.

In addition, the locking jaw 260 formed in the socket portion 220 may be formed only to cover the upper surface of the bolt head (H).

On the other hand, the open type wrench 100 ′ of the second embodiment according to the present invention includes a fitting protrusion protruding from a predetermined length so that the locking groove 540 formed in the bolt head H may be caught on the inner circumference of the locking jaw 260. 262 is formed.

The open wrench 100 ′ in which the fitting protrusion 262 is formed is used to loosen and tighten the gear type cable gland 500, and includes a locking jaw 260 formed in the socket part 220. It is installed at the bottom.

In addition, the fitting protrusion 262 is formed in a pair to face the locking jaw 260. When the fitting protrusion 262 is one, the force applied to the locking groove 540 of the bolt head H is weakened, so when the open type wrench 100 ′ is operated, the bolt head H is operated by the operator. It is to give a large force applied to the locking groove 540 of the.

In addition, the fitting protrusion 262 includes a vertical surface 264 formed to be perpendicular to the locking jaw 260, and an inclined surface 266 formed to be inclined in the other direction of the vertical surface 264.

The vertical surface 264, the surface that is in contact with the locking groove 540 of the bolt head (H), that is, the force applied to the locking groove 540 when the operator is applied to the locking groove 540 is easy to be transmitted as it is It is for.

On the other hand, the inclined surface 266 is in contact with the engaging groove 540 of the bolt head (H) when the operator operates the gear type cable gland 500 in the release direction as shown in Figure 12a to 12d. The inclined surface 266 of the fitting protrusion 262 is formed to be caught by the next locking groove 540 away from the locking groove 540.

This is because the inclined surface 266 is formed to be inclined, ascending in the upward direction by the locking groove 540 in the direction in which the force is applied, the bolt head (H) is released in the release direction while the fitting protrusion 262 is next It is to be fitted into the locking groove 540.

In this case, the pair of fitting protrusions 262 are provided to serve to compensate for the force applied to the locking groove 540 by the inclined surface 266.

The present invention has been described above with reference to the embodiments illustrated in the drawings, which are merely illustrative, and those skilled in the art may understand that various modifications and equivalent other embodiments are possible. There will be. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a plan view showing a wrench used in the conventional hexagonal bolt and nut,

2 is a plan view showing a state in which a wrench is used for the bolt and nut of the hexagonal form,

3 is a perspective view showing a hexagonal cable gland,

4 is a perspective view showing a gear type cable gland;

5 is a perspective view showing a state in which the cable gland is densely installed in the junction box;

6 is a perspective view showing a hook type wrench,

7 is a perspective view showing the use state of the gear type cable gland of the hook type wrench,

8 is a perspective view of an open wrench according to a first embodiment of the present invention;

9 is a perspective view showing a state in which the open wrench according to the first embodiment of the present invention is applied to the cable gland of the hexagonal shape,

Figure 10a is a plan view showing a state in which the open wrench according to the first embodiment of the present invention applied to the cable gland of the hexagonal shape,

Figure 10b is a cross-sectional view showing a state in which the open wrench according to the first embodiment of the present invention applied to the cable gland of the hexagonal shape,

11 is a perspective view showing an open wrench according to a second embodiment of the present invention;

12 is a perspective view showing a state in which an open wrench according to a second embodiment of the present invention is applied to a cable gland of a gear shape;

13A to 13D are partial front views illustrating a work sequence for using the open wrench according to the second embodiment to the cable gland in the form of a gear;

♣ Explanation of symbols for main part of drawing ♣

100: open wrench (Wrench) 300: handle portion

200: head portion 220: socket portion

240: triangle projection

400: hexagonal cable gland

500: gear type cable gland H: bolt head

540: locking groove 260: locking jaw

262: fitting protrusion 264: vertical plane

266: slope

Claims (5)

delete delete And a head part 200 in which the socket part 220 into which the head H of the bolt is inserted is opened to one side, and a handle part 300 extending to one side of the head part 200. On one side of the socket portion 220, a locking jaw 260 is formed on the periphery of the head H, and a plurality of edges of the bolt head H may be caught on the inner circumference of the socket portion 220. The triangular protrusion 240 is formed, the inner periphery of the locking step 260 is fitted with a fitting protrusion 262 to catch the locking groove 540 formed in the bolt head (H), gear type hexagonal cable gland An open wrench used to tighten or loosen a; The fitting protrusion 262 consists of a vertical surface 264 formed perpendicular to the locking projection 260 and an inclined surface 266 formed to be inclined in the other direction of the vertical surface 264 to be caught only in one direction. Open wrench. The method according to claim 3, The triangular protrusion 240 is an open wrench, characterized in that formed in 12 angles of 30 ° units in the socket 220. The method according to claim 3, The fitting protrusion 262 is composed of a pair of open wrench, characterized in that formed to face each other.

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