JPH0640418Y2 - Sleeve cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a sleeve cover of an electric wire.

"Prior Art" Conventionally, the straight sleeve cover was subjected to taping treatment, but it was difficult to perform conventional taping work in indirect live work using the uninterruptible construction method, and it was necessary to make tapeless.

[Problems to be solved by the invention] The purpose of the present invention is to obtain a sleeve cover for covering a repaired bare wire portion without performing taping work during indirect live work in the uninterruptible construction method.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present proposal is to expand and fit one end of a shrinkable tube to the outer circumference of both ends of the insulating tube, and to move the other end of the tube from both ends of the insulating tube to the outside. The spiral tube is extended, the spiral tube is fitted to the inner circumference of the extension section, the extension section is enlarged by the spiral tube, and the inner end of the spiral line forming the spiral tube is extended to the outer end of the spiral tube. A sleeve cover connected to the tractor is specified as the specific device, and the insulating pipe is constituted by the sleeve cover described in the above device, which is a linear sleeve.

[Operation] Therefore, the electric wire 6 is inserted into the spiral tube 3 and the insulating tube 1, and the bare wire portion 6'repaired by the indirect live work is slid on the spiral tube 3 and the insulating tube 1 to be housed in the insulating tube 1. (The state is shown by a virtual line in FIG. 1). In that state, when the insulating tube 1 is gripped and the pulling tool 5 is pulled outward (in the direction of arrow a or b), the spiral strip 4 is unwound from the inner end 4 ', and finally the spiral tube 3 is dissolved, and the spiral tube 3 The extension 2'of the tube 2, which has been supported by the outer peripheral surface and has an enlarged diameter, loses support and contracts, and is crimped and adhered to the outer peripheral surface of the electric wire 6. Insulation tube 1
Both ends of the insulating tube 1 and the electric wire 6 can be connected to each other in an insulating state by the tubes 2 and 2 by carrying out at both the left and right ends of the insulating tube 1. It can be performed in a live state.

[Example] Polyethylene flame-retardant linear insulation tube 1 is expanded and fitted to the outer circumferences of both ends of the shrinkable tubes 2 made of elastic rubber or the like, and the fitting portion is bonded to the outer circumference of the insulation tube 1 with an adhesive. Adhere to the surface.
The other end reduced diameter portions of the tubes 2 and 2 extend outward from both ends of the insulating pipe 1, the spiral pipe 3 is fitted to the inner circumference of the extension portion 2 ′, and the extension is reduced by the spiral pipe 3. The portion 2'is enlarged in the radial direction. The spiral tube 3 is formed by a spiral ridge 4, and an inner end 4 ′ of the spiral ridge 4 is connected to a traction tool 5, and the traction tool 5 is exposed from the outer end of the spiral tube 3 to the outside by an arrow a in FIG. It is formed by pulling in the b direction (outside) to loosen the spiral strip 4 to eliminate the spiral tube 3. The spiral tube 3 is released from the inner end 4'of the spiral strip 4 and is supported by the tube 3. The tube 2 that has been used is contracted in the radial direction and pressure-bonded to the outer peripheral surface of the insertion wire 6 to seal it. Of course, the inner diameter of the spiral tube 3 is larger than the outer diameter of the electric wire 6, and the contracted inner diameter of the tube 2 is smaller than the outer diameter of the electric wire 6. As shown in FIG. 1, the tow tool 5 is preferably made of the same material as the spiral strip 4 and is integrally connected to the inner end 4 ', and a knob 5'can be bent and formed at the tip.

"Effect of the device" Since this proposal is configured as described above, it is possible
There is a benefit that the repaired bare wire portion 6 ′ can be easily covered without performing taping work, and that the outer diameter size of the wire 6 can be changed.

[Brief description of drawings]

FIG. 1 is a side view showing a sleeve cover of the present invention, FIG. 2 is a side view in a state in which a spiral tube is unwound, and FIG. 3 is a side view in use. 1 ... Insulation tube, 2 ... Shrinkable tube, 2 '... Extension part, 3 ... Spiral tube, 4 ... Helical strip, 4' ... Inner end, 5 ...
... a tow.

Front page continuation (72) Inventor Hayato Irikida 23-5 Mukaicho, Kanoya, Kagoshima Prefecture Kyushu Electric Power Co., Inc. Kanoya Sales Office (72) Inventor Munetaka Nogata 7-79 Sakuragaoka, Kasuga-shi, Fukuoka Otaraite Co., Ltd. (72) Inventor Hiroshi Susui 1-239 Asano, Kokurakita-ku, Kitakyushu, Fukuoka Prefecture Daitoyo Sangyo Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. An end portion of a shrinkable tube is expandedly fitted to the outer circumference of both ends of an insulating tube, the other end portion of the tube is extended outward from both ends of the insulating tube, and a spiral tube is provided on the inner circumference of the extension portion. A sleeve cover which is fitted to enlarge the extension by the spiral tube, and which connects an inner end of a spiral line forming the spiral tube to a pulling tool outwardly of an outer end of the spiral tube. 2. The insulating tube is a linear sleeve (1).
The described sleeve cover.