JP2910989B2 - Connection structure of operation string and grip of pole switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a grip to a lower end of an operation cord for operating a pole switch installed on an electric pole at a position close to the ground. .

[0002]

2. Description of the Related Art Conventionally, in order to turn on / off a pole switch installed above a telephone pole at a position close to the ground, an operating cord is drooped along the pole to open and close the switch at a lower end. The grips are each connected with a normal string tie for ease.

[0003]

Connecting the grips to the lower ends of the operation cords in this way requires a great deal of trouble, and the knots may be loosened during use. Had to be re-tied and had maintenance problems. Therefore, the present invention has been made to solve such problems in the prior art, and there is no need to tie an operation cord to a grip, and it is easy to operate, and it can be loosened during use. An object of the present invention is to provide a connection structure between an operation cord and a grip of a pole switch, which is not provided.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a string connecting device in which first to third communication holes are provided at substantially equal intervals in the vertical direction of a block body. Is inserted from above the first communication hole of the connector,
By causing the operation string drawn downward to go around the grip and then penetrating the second communication hole from below, and further inserting the tip of the operation string drawn upward from the top into the third communication hole, The end of the operation cord is continuously inserted in a U-shape and an inverted U-shape in each communication hole of the cord connector to make sure connection.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a string connecting device used in the present invention. The string connecting device 1 has a first surface in a vertical direction of a block body having an arbitrary shape having flat upper and lower surfaces.
Or the third communication holes 2, 3, and 4 are formed at substantially equal intervals. The shape of the block body is not limited to the one shown in the figure, but may be any shape.

FIGS. 2 and 3 show a state in which a grip 6 is connected to the lower end of an operation string 5 for turning on and off the pole switch via the string connector 1. The grip 6 is formed integrally by inserting an EEA resin into an oval metal ring. Then, the procedure for inserting the operation string 5 into the string connector 1 will be described. First, the tip (lower end) of the operation string 5 is inserted from above the first communication hole 2 of the string connector 1. Next, the tip of the operation cord 5 pulled out below the communication hole 2 is inserted from below into the second communication hole 3, and the tip of the operation cord 5 pulled out from above is inserted into the third communication hole 4 from above. Through.

The state in which the grip 6 is connected to the operation string 5 will be described. The tip of the operation string 5 is inserted longer than above the first communication hole 2 of the string connection tool 1 and is positioned below the string connection tool 1. The operation string 5 pulled out of the grip 6 is turned around the grip 6, and the operation string 5 is bent into a U-shape so that the upper end of the grip 6 is held in a state of being held together, and the operation string 5 is inserted into the second communication hole 3. Thus, the grip 6 is supported by the operation cord 5. Therefore, the tip of the operation string 5 is fixed to the string connector 1 by inserting the tip drawn out above the operation string 5 in an inverted U-shape from above the third communication hole 4. The grip 6 is connected to the tip of the operation cord 5.

FIG. 4 shows the entire structure of the operation cord connection structure of the pole switch according to the present invention. In FIG. 4, the underline 8 branched from each of the three-wire type transmission and distribution lines 7 installed above the telephone pole P is drawn out through the sleeve cover 9 and is connected to the pole switch 10 installed on the telephone pole P. It is drawn inside. The pole switch 10 is provided with a bar switch 11 outside one side wall, and the left and right ends of the bar switch 11 are connected to the upper and lower ends of two operation cords 5 and 5 for turning on and off the pole switch 10 respectively. Connected.

The operation cords 5 and 5 are formed in a long shape, and are supported by the indicator hardware 12 provided near the upper part of the electric pole P, and then droop down along the surface of the electric pole P, and are fixed at a lower part of the electric pole P. The operation of the operation cord 5 is regulated by the ground operation fixing hardware 13 provided at the height position. Therefore, there is no erroneous operation due to tampering or careless contact with another object, and when an operation that requires turning on and off is performed, the operation of the ground operation fixing hardware 13 is released to release the operation.

In this embodiment, in order to prevent an erroneous operation, the operation cord 5 and the grip 6 are respectively colored red and white so that the entrance side is red and the cut side is white.

[0011]

As described above, the connection structure between the operating cord and the grip of the on-pole switch according to the present invention is such that the lower end of the long operating cord is U-shaped in the communication hole provided in each of the string connecting devices. The operation cord and the grip are securely connected because the grip is clamped during the insertion into the inverted U shape, and the attachment of the grip is almost one-touch simple operation, and the connected state is loosened or released However, a stable connection state can be maintained for a long period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view of a corner connector used in the present invention.

FIG. 2 is a perspective view showing a state where a grip is connected to a lower end of an operation cord.

FIG. 3 is a perspective view showing a state where a grip is connected to a lower end of an operation cord.

FIG. 4 is a perspective view showing the whole of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 String connection tool 2 1st communication hole 3 2nd communication hole 4 3rd communication hole 5, 5 Operation string 10 Pole switch 11 Bar switch P Utility pole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01H 17/08 H01H 33/53

Claims (1)

(57) [Claims] An operation for hanging an operation string having an upper end connected to a pole-mounted switch installed on an upper part of a telephone pole along a pole and connecting and disconnecting a pole-mounted switch configured to connect a grip to a lower end thereof. In the string, a string connector having first to third communication holes provided at substantially equal intervals in the vertical direction of the block body is formed, and the tip of the operation string is inserted from above into the first communication hole of the string connector. Then, the operation string drawn downward is made to go around the grip, then inserted into the second communication hole from below, and the tip of the operation string drawn upward is inserted into the third communication hole from above. The connection structure between the operation string of the pole switch and the grip, characterized in that the grip is fixed to the end of the string.