JP2000168406A - Hanger ear device for narrow space - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contract the hanging height by suspending an insulating material- made hanger bar from a connecting rod for connecting a pair of separators, and supporting a trolley wire by a lower hanger ear. SOLUTION: A single trolley wire T is laid below two horizontally parallel hanging wires M. A pair of separators 1 for connecting the two hanging wires are arranged with a proper space in the extending direction, and both the ends thereof hold the parallel hanging wires M by upper and lower holding pieces. Each holding piece has a bolt through-hole in the center part, so that the hanging wire is held by the fastening of a bolt 5. A connecting rod 2 is fixed by inserting both the ends to the head ear holes of the bolts 5, and horizontally fixed to the upper parts of the hanging wires M so as to connect the centers of the separators 1. The upper end of a hanger bar 3 is slidably supported on the connecting rod 2, and the lower end holds the trolley wire T by an ear 4. Since the hanger bar 3 is adjustable in height, the hanging height L can be contracted as occasion demands.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger for a small space, which can be used in a tunnel or the like having a limited ceiling space in an overhead wire structure connecting a suspension wire and a trolley wire.

[0002]

2. Description of the Related Art In order to increase the amount of train traffic and rationalize the entire train line, the "feeder line" has been abolished, and a suspension line has been replaced with a parallel two-wire system.
A book-making system is adopted, and a hanger apparatus in that case is also previously filed in Japanese Patent Application No. 9-297729. This is one in which the branch fitting K is positioned at the center as shown in FIG. This branch fitting has a pair of branch pipes k1 protruding from both upper ends and a leg pipe k2 protruding from the lower center.

[0003]

The suspension wire M and the trolley wire T
Is called an overhead height. When the ceiling space of the tunnel is narrow, the overhead height L must be reduced correspondingly. However, in the configuration of the above-described known example, the hanger bar is provided at the upper portion with the branch metal fitting K as the boundary, and the insulator S and the ear Y are provided at the lower portion, so that the minimum size is limited.
Further, the thickness of the protective cover is also added to the L dimension. Height L
There has been a demand for a structure that can be reduced to a necessary limit.

[0004]

Means for Solving the Problems Each of two parallel parallel suspension lines is provided with a pair of separators which are appropriately spaced in the direction of extension and connected with a connecting rod at the center thereof, and a hanger bar is attached to the connecting rod. I decided to. Conventionally, a trolley wire was supported via a single hanger bar on two parallel suspension wires,
In the present invention, the support point is moved to the middle of the pair of separators, and the hanger bar can be adjusted up and down without colliding with the separator. Further, the protective cover P is not required. Therefore, the height can be reduced.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS.
A single trolley wire T is stretched below the suspension wire M of the strip. A pair of separators 1 connecting the two suspension lines are provided with an appropriate interval in the extending direction, and both ends of the separators 1 hold parallel suspension lines M, M by upper and lower gripping pieces 1a, 1b.
Each of the gripping pieces 1a and 1b has a bolt through hole at the center thereof.
The suspension lines M, M are gripped by tightening the bolts 5. The connecting rod 2 is fixed by inserting both ends into the head ear holes of the bolts 5, connecting the centers of the separators 1, 1, and horizontally fixed to the upper part of the suspension line M. The hanger bar 3 is slidably supported by the connecting rod 2 at the upper end, and the trolley wire T is gripped by the ear 4 at the lower end. As described above, in this method, the insulator S and the protective cover P are eliminated, so that the hanger bar is made of an insulating plastic material. With the above configuration,
Since the hanger bar can be individually raised and lowered, the height L can be reduced as needed. Since the upper end of the hanger bar is slidably supported by the connecting rod, it can cope with axial movement of the trolley wire due to temperature change or the like.

[0006]

According to the present invention, a hanger bar 3 made of an insulating material is hung on a connecting rod 2 connecting a pair of separators 1 and a lower hanger 4 is provided.
In this case, the trolley wire T is supported, and the conventional insulator and protective cover are not required. Therefore, even if the upper space is small, the height can be reduced without difficulty as necessary.

[Brief description of the drawings]

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

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a front view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Separator 2 Connecting rod 3 Hanger bar 4 Ear 5 Bolt M Suspension wire P Protective cover S Insulator T Trolley wire Y Ear H Hunger bar

Claims (1)

[Claims] 1. An overhead wire structure for supporting a single trolley wire with two parallel suspension wires, comprising: a pair of separators, each of which holds parallel suspension wires at both ends and has a predetermined interval in the extending direction. A connecting rod for connecting the separators at each central portion,
A hanger ear device for a narrow space, comprising: a hanger bar made of an insulating material which is slidably supported on the connecting rod at an upper portion and grips a trolley wire at a lower end ear.