JPH10226249A - Protection cover for solid power feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid power feeder protecting cover which is made of a single body with good workability and which can be inserted into a gap of a lower insulator supporting part, in relation to a cover for protecting a rigid body-electric car overhead cable in a tunnel from corrosion due to water leaks, and preventing users on underground station yard from being struck by electricity. SOLUTION: A thin wall cover 3, the center part of which can be fixed on the top face of a solid power feeder T and which is folded back along supporting fittings 2 on both sides, and the lower part of which is formed into a skirt part spreading right and left, is made of a resin material by extrusion molding, and has some flexibility. The cover is spread out to be put over the solid power feeder T from both sides. Perforated end edges 3a are provided on the skirt part, and connecting pins are straddled-inserted into adjacent holes for the end edges to be aligned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protection cover for protecting a rigid train line against water leakage in a subway tunnel and preventing an electric shock of a user in a station yard.

[0002]

SUMMARY OF THE INVENTION In a tunnel, it is difficult to avoid leaking water and dripping of dew. As a result, the rigid train line is locally corroded. A cover for protection is required, and Japanese Utility Model Laid-Open Publication No. Sho 56-62235 is known. There, a protective cover is constituted by three members, a roof-shaped cover 11 divided into two parts and a connecting cover 12 for connecting the two. Attaching the cover divided into three parts over the entire length of the rigid train line extending with the route has a problem in terms of workability.
In addition, the lower part of the suspension insulator is where there is much condensation and dripping.
Since there is no space for installing the member, it must be defenseless. Also, in a subway station of a narrow tunnel type, there is a risk that a user touches the platform with an umbrella or the like and receives an electric shock. If a gap is formed at the joint of the protective cover, the possibility is large. The appearance from the user is not good either. There has been a long-awaited need for a cover that can be easily assembled with a single member and that can be used without any problem even under the insulator.

[0003]

As shown in FIG. 1, the rigid electric wire T is inserted between the mounting plate at the lower end of the insulator and the supporting metal fittings mounted on the left and right sides thereof. The insertion gap has some clearance, and the train line T can move in the axial direction. Therefore, a cover having the following shape will be made. That is, the center part can be fixed to the top of the train line T, both ends are folded back along with the support bracket, and the lower part becomes a skirt part and spreads right and left. If a thin material of this shape is placed over the train line T, it can also be inserted into the gap as it is. This cover is made of extruded synthetic resin. If some flexibility is given, it can be spread and incorporated into the train line T from the side. This is successively incorporated into the entire length of the train line T. In this case, the lower ends of the skirts of many covers are not always aligned. The difference between the end faces causes oozing of moisture from the contact face and insufficient strength, and the appearance is extremely poor. In order to avoid this, a perforated edge is provided inside the lower end of the skirt portion so that separately prepared connecting pins can be inserted by sorting the front and rear cover holes. By forming a perforated edge over the entire length inside the lower end of the skirt portion, it can be easily manufactured by extrusion molding. In recent years, narrow tunnel type subways have been introduced due to construction costs. The height from the rail to the rigid train line is only about 3 m, and it is about 2.5 m from the platform inside the station yard, and the rigid train line is laid in front of the user as seen from the user. By completely connecting the ends of the protective covers, a protective cover having high rigidity and good appearance is formed. Attach a sticker or the like to call attention to electric shock.

[0004]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to the drawings. The insulator G suspended from the ceiling of the tunnel has a mounting plate 1 at the lower end. The pair of support fittings 2 are mounted opposite to the mounting plate, and can be supported with the upper side of the rigid train line T interposed therebetween. The protective cover 3 has a central portion fixed on the upper surface of the trolley line T, is folded along the support fitting 2 and has a lower portion forming a skirt portion extending left and right.
At the lower end of the skirt part, a perforated edge 3a is formed over the entire length.
Are provided, and the connecting pin 4 can be pushed and inserted.
The connecting pin 4 is provided with a thin protruding partition 4a at the center so as to be resiliently distributable and insertable into the perforated edge of the adjacent cover.
Slotted through holes are cut out at both ends. This cover is made by extruding a resin material. The thickness is about 1 mm, and it has appropriate flexibility.

[0005]

According to the present invention, this cover can be easily incorporated from the side of the rigid train line by utilizing elasticity. The assembled one can be inserted through the gap under the insulator as it is. The use of the connecting pin prevents irregularities at the lower end of the skirt, prevents water leakage at the contact surface, increases the strength of the entire connected cover, and does not impair the beauty.
User safety can also be ensured.

[Brief description of the drawings]

FIG. 1 is a cutaway front view of the present invention.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a perspective view of a connecting pin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting plate 2 Support bracket 3 Cover 3a Edge 4 Connecting pin G Insulator T Rigid electric wire

Claims (3)

[Claims] 1. A rigid train line supported by a support device comprising a mounting plate fixed to a lower end of an insulator suspended from a ceiling of a tunnel and support brackets mounted on left and right sides of the mounting plate, and a cross section of the rigid train line. The central portion is fixed on the top surface of the rigid train line, and is folded back along with the above-mentioned support brackets, and the lower portion is a resin-made rigid train line protective cover formed on a skirt portion extending left and right. 2. The protective cover according to claim 1, wherein a perforated edge is provided inside a lower end of the skirt portion, and a connecting pin can be distributed and inserted into both holes of the contact end surface. 3. A protective cover according to claim 2, wherein a projecting partition is provided at the center, and a connecting pin is formed by cutting through holes at both ends.