JP3054550U - One-touch earth clamp - Google Patents

Abstract

(57) [Problem] To provide an earth clamp that can be attached to a guide wire with one touch, does not escape from the wire, and can efficiently attach an earth wire. SOLUTION: A tightening screw rod 9 is attached in a vertical direction of a main body 1, and an engagement recess 4 of a guide wire is provided inside a tapered tip portion 2 of upper and lower halves 1a and 1b so as to face the upper and lower halves 1a.
A ground wire insertion path 5 is provided at the rear of 1b, and a mutual contact part 6 is formed at the rear end.
A spring body 7 for resiliently closing is provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a one-touch earth clamp for attaching an earth wire along an installed guide wire.

[0002]

[Prior art]

 The ground wire used where there is an electric wire is stretched along a guide wire installed between utility poles. To attach the ground to the guide wire, a clamp fixed to the wire is used. In the conventional earth clamp shown in FIG. 5, the main body 20 is composed of an upper half body 20a and a lower half body 20b, and the tightening and loosening operation of the tightening screw 23 loosely inserted in the vertical direction of the half bodies 20a and 20b is performed. As a result, the halves come into contact with and separate from each other. The guide wire 24 is fixed by applying a concave portion 21 opposed to the front ends of the upper and lower halves 20a and 20b, and the ground wire 25 is inserted into the gap portion 22 at the rear end.

[0003]

[Problems to be solved by the invention]

 In the above-mentioned conventional earth clamp, since the upper and lower halves 20a and 20b are merely connected to each other by the tightening screw 23, it is difficult to position each other before tightening by the screw 23, and the state of the unstable state is constant. Therefore, it did not adhere firmly to the wire 24, and the fixing work was extremely troublesome.

When the tightening screw 23 is tightened, if the two halves 20a and 20b are not firmly grasped with one hand, the upper and lower concave portions 21 of the half are disengaged from the wire 24, and the entire body falls to the ground. There was an inconvenience of doing it.

If the halves 20 a and 20 b are fixed without being securely fitted to the wire 24, there is a problem in that the halves 20 a and 20 b may be loosened or tilted due to wind pressure or vibration even after installation, so that the ground wire 25 may be extended. There was also a risk of trouble.

The present invention has been made in consideration of such problems of the prior art, and is attached to the guide wire with one touch. Once the wire is engaged with the wire, the wire is not tightened even before the tightening screw is tightened. It is intended to provide a clamp that can be securely mounted because there is no danger of escape from the ground, and that the earth wire can be securely and quickly attached.

[0007]

[Means for Solving the Problems]

 That is, the present invention is an earth clamp in which a tightening screw is attached in a vertical direction in a middle portion of a main body composed of upper and lower halves, a front portion of the main body is engaged with a guide wire, and a ground wire is inserted into a rear portion. A wire engagement recess is provided inside the tapered tip of the upper and lower halves, an earth wire insertion path is provided at the rear of the upper and lower halves, and a mutual contact portion is formed at the rear end. Further, a one-touch type earth clamp is provided, in which a spring body for elastically closing the tapered tip portion is attached to a rear end of the main body.

[0008]

[Embodiment of the invention]

 The present invention will be described with reference to the drawings. A main body 1 is composed of an upper half 1a and a lower half 1b, and a square play hole 3 for vertically attaching a tightening screw 9 is formed in the middle of the upper half 1a. 1a, a female screw 3 'is formed in the lower half 1b. Since the tightening screw 9 is inserted through the play hole 3 and screwed into the female screw 3 'to tighten the main body 1, no nut is required.

The upper and lower halves 1a and 1b have a tapered end portion 2 which can be opened and closed, and an arc-shaped engaging recess 4 of a guide wire 10 facing the inside.

At the rear of the upper and lower halves 1a and 1b, there is provided an insertion passage 5 to which a ground wire 11 is attached. Preferably, both ends of the insertion passage 5 are tapered so that the ground wire 11 can be smoothly inserted.

[0011] The rear ends of the upper and lower halves 1a and 1b are rounded uneven contact portions 6 so that the upper and lower halves 1a and 1b serve as fulcrums. The tip 2 opens and closes.

At the rear end of the main body 1, a spring body 7 in which a leaf spring is folded in two is mounted. The spring 7 is inserted into the receiving groove 8 formed along the rear surfaces of the upper and lower halves 1a and 1b, and the hooks 7 'at both ends are formed at the corners of the play hole 3 and the female screw 3'. To lock. The distal ends 2 of the halves 1 a and 1 b are constantly closed elastically by the spring body 7, and are opened against the spring body 7 when engaging with the guide wire 10.

In order to fix the main body 1 to the guide wire 10, the screwing with the female screw 3 ′ is loosened to leave the tightening screw 9 free, and the tapered tip 2 is applied to the wire 10. Push in. The distal end portion 2 is automatically opened by the pressure contact of the wire 10 with the rear end contact portion 6 as a fulcrum from the state of being closed by the spring body 7, and the inner engaging recess 4 is also pushed open, and the upper and lower surfaces of the wire 10 are expanded. The engagement recess 4 is in close contact with the wire 10 due to the elasticity of the spring body 7 even if the screw 9 is loosened. When the engagement recess 4 expands, the insertion passage 5 at the rear of the main body 1 also slightly expands, so that the ground wire 11 can be easily inserted therein. When the tightening screw rod 9 is tightened after the insertion of the ground wire 11, the upper and lower halves 1a and 1b move in the approaching direction, so that the engaging recess 4 is pressed and fixed to the guide wire 10, and the ground wire 11 is firmly fixed in the insertion passage 5. Is held as

Even when the main body 1 is rotated due to a wrong hand during the attaching work to the guide wire 10, the whole is dropped to the ground because the engagement recess 4 is in close contact with the wire 10 due to the elasticity of the spring body 7. (See FIG. 4).

If a small passage 5a through which the ground wire 11 can be inserted is formed in the engagement recess 4 as shown in FIG. 1, the ground wire can be taken into the small passage 5a, but this can also be freely implemented in the present invention. Of course, it belongs to the range.

[0016]

[Effect of the invention]

 The distal end of the main body facing the guide wire is tapered, so that the inner engagement recess can be correctly engaged with the wire with one touch, and there is no risk of having to take time to install or unstable fixing as before, It can be used effectively for a long period of time because it does not move or unnaturally tilt due to vibration.

The distal end is constantly urged in the closing direction by the spring body. Even when the tightening screw is loosened, the engaging recess firmly adheres to the guide wire. The engagement between the recess and the wire is not released, and there is no inconvenience of falling off the wire. Also, if the tightening screw is loosened to some extent, the guide wire will automatically intervene into the engagement recess from the tip, so the screw will come off the nut after the loosening adjustment as before, and the tightening operation will be performed again. The situation can be avoided and the work can be performed without waste.

[0018] The ground wire can be easily and smoothly inserted by reliably and quickly attaching to the guide wire.

[0019] No skill is required for engagement with the guide wire and installation of the ground wire, reliable work can be performed in an easy posture at any time, and work efficiency is much higher than in the past, so that labor is saved. The savings in labor costs are expected.

As shown in the embodiment, if both ends of the insertion passage are formed in a tapered shape, the insertion of the ground wire is not troublesome, and the small passage through which the ground wire is inserted is formed in the engagement recess. Forming it is convenient when the guide wire and the ground wire need to be mounted close to each other.

[Brief description of the drawings]

FIG. 1 is a side view of the present invention.

FIG. 2 is an exploded sectional view of a main body.

FIG. 3 is a perspective view showing a use state of the present invention.

FIG. 4 is a side view of the present invention suspended from a guide wire.

FIG. 4 is a side view of a conventional product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 1a Upper half 1b Lower half 2 Tapered tip part 4 Engagement recess 5 Insertion passage 6 Contact part 7 Spring body 9 Tightening screw 10 Guide wire 11 Ground wire

[Procedure amendment]

[Submission date] July 2, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a side view of the present invention.

FIG. 2 is an exploded sectional view of a main body.

FIG. 3 is a perspective view showing a use state of the present invention.

FIG. 4 is a side view of the present invention suspended from a guide wire.

FIG. 5 is a side view of a conventional product.

[Description of Signs] 1 Main body 1a Upper half 1b Lower half 2 Tapered tip 4 Engagement recess 5 Insertion passage 6 Contact part 7 Spring body 9 Tightening screw 10 Guide wire 11 Ground wire

Claims (1)

[Utility model registration claims] 1. A ground clamp for attaching a tightening screw vertically in a middle portion of a main body composed of upper and lower halves, engaging a front portion of the main body with a guide wire, and inserting a ground wire into a rear portion, A guide wire engaging recess is provided inside the tapered tip of the upper and lower halves, and an earth wire insertion path is provided at the rear of the upper and lower halves, and a mutual contact portion is formed at the rear end. A one-touch earth clamp having a spring at the rear end of the main body for elastically closing the tapered tip.