JP2003048464A - Movable bracket for electric traction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable bracket capable of connecting a curved pull fitting from any direction by using the same comparatively small check pipe. SOLUTION: A main pipe 2, a supporting pipe 3 and the check pipe 4 are coupled in a truss shape. A connecting part 5a for attachment/detachment to/ from a lower part of the check pipe 4 is provided on a base end side of an arm supporting fitting 5. An arm part 5b extending along the check pipe 4 on a lower side of the check pipe 4 is provided at the intermediate part. A supporting part 5c extending obliquely downward by bending from the arm part 5b is provided on the tip side. A connecting direction for the check pipe 4 is changed by 180 deg. to cope with anchoring of the curved pull fittings A1 and A2 in either one of left and right directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supports a curb fitting when a train wire such as a trolley wire, an auxiliary suspension wire, or a suspension suspension wire is laterally retained by a curving fitting at a curved portion of a railroad track. The present invention relates to a movable bracket provided for the purpose of

[0002]

2. Description of the Related Art Conventionally, as a movable bracket, for example, one described in Japanese Utility Model Laid-Open No. 5-82644 has been known. This is a main pipe that has a base end supported by a vertical support and extends horizontally, and a support that extends obliquely so that the base end is supported by the support and the tip is connected to the tip of the main pipe below this main pipe. A pipe, an anti-vibration pipe that is bent so that one end is connected to the tip of the main pipe and the other end is connected to the middle part of the support pipe, and is connected to the horizontal part of the anti-vibration pipe at the base end to hold the trolley wire. And an arm support fitting to which a curved pull fitting for connection is connected.

[0003]

In the above-mentioned conventional movable bracket, it is necessary to select and use an anti-vibration pipe having a different shape depending on whether the trolley wire is pulled toward the column or in the direction opposite to the column. . That is, when the trolley wire is pulled in the direction opposite to the strut, it is necessary to attach the curved metal fitting to the side opposite to the strut with respect to the trolley wire, and if the vibration isolation pipe does not extend relatively long beyond the trolley wire. It will not happen. Therefore, it is an object of the present invention to provide a movable bracket that enables connection of curved drawing metal fittings from any direction using the same relatively small vibration isolation pipe.

[0004]

In the present invention, in order to solve the above-mentioned problems, a connection portion 5a for attaching / detaching to / from the lower portion of the vibration-proof pipe 4 is provided on the base end side of the arm support fitting 5,
In the middle, an arm portion 5b extending below the anti-vibration pipe 4 is provided, and a support portion 5c that bends from the arm portion 5b and extends obliquely downward is provided on the distal end side. Is changed by 180 ° so that the curved brackets A1 and A2 can be retained in any of the left and right directions, and the movable bracket 1 for a train line is configured.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. 1 is a front view of a movable bracket, FIG. 2 is a front view of an arm support fitting, FIG. 3 is a side view of an arm support fitting, and FIG. 4 is a front view of a movable bracket of another embodiment.

In the figure, a movable bracket 1 comprises a main pipe 2, a support pipe 3, a vibration-proof pipe 4, and an arm support fitting 5.

The main pipe 2 has an insulator 2a at the base end side.
Is supported by a vertical column (not shown) and extends horizontally.

The support pipe 3 is arranged below the main pipe 2, and is supported by a vertical column (not shown) on the base end side via an insulator 3a. The support pipe 3 is inclined forward and its tip is connected near the tip of the main pipe 2.

A connection pipe 6 is connected between the main pipe 2 and the support pipe 3 so as to form a truss.

The anti-vibration pipe 4 is bent into a substantially V-shape so that one end is connected to the tip of the main pipe 2 and the other end is connected to the middle part of the support pipe 3, and the tip of the main pipe 2 is bent. It has a descending part 4a extending obliquely downward from the front part, a horizontal part 4b extending horizontally from an intermediate part of the support pipe 3, and a bent part 4c connecting the two.

The arm support fitting 5 is connected to the horizontal portion 4b of the vibration isolation pipe 4 at the base end. Curved metal fittings A1 and A2 for retaining the trolley wire T and the auxiliary suspension wire M are connected to the tip end side of the arm support metal fitting 5. The arm support metal fitting 5 has a connection portion 5a for attaching and detaching to the lower portion of the vibration isolation pipe 4 on the base end side, and an arm portion extending along the lower portion of the horizontal portion 4b of the vibration isolation pipe 4 in the middle thereof. 5b, and a support portion 5c that is bent from the arm portion 5b and extends obliquely downward from the arm portion 5b. The arm support fitting 5 can change the connection direction with respect to the anti-vibration pipe 4 by 180 °, so that the arm support fitting 5 can be adapted to hold the curved fittings A1, A2 in either the left or right direction. As shown in FIG. 3, the support portion 5c of the arm support fitting 5 includes curved drawing fittings A1 and A2.
Has a pair of parallel support plate portions 5d for receiving and pivotally supporting the base end portions of each other, and the support plate portion 5d has stoppers for preventing downward rotation of the curved metal fitting A2 at a predetermined position. 5e is provided.

When the trolley wire T and the auxiliary suspension wire M are retained by using the movable bracket 1, the mounting direction of the arm support fitting 5 is changed according to the retaining direction as shown by the solid line and the phantom line in FIG. When the trolley wire T and the auxiliary suspension overhead wire M are retained from the opposite direction (right side in the drawing) to the column (not shown), the arm support metal fitting 5 extends relatively long to the right side, so that the anti-vibration pipe 4 does not have to be long. However, this can be handled as it is.

Another embodiment shown in FIG. 4 is to be installed in a narrow space such as in a tunnel. Since the basic structure is the same as that of the previous embodiment, the same reference numerals are given to the same components and the description thereof will be omitted. In this embodiment, the anti-vibration pipe 4 is bent in a substantially U shape and is flat so that it can be adapted to a narrow space.

[0014]

As described above, in the present invention, the connecting portion 5a for attaching / detaching to / from the lower portion of the anti-vibration pipe 4 is provided on the base end side of the arm support fitting 5, and the anti-vibration pipe 4 is provided in the middle. An arm portion 5b extending along the lower portion is provided, and a support portion 5c that bends from the arm portion 5b and extends obliquely downward is provided on the tip side, and the connecting direction to the vibration isolation pipe 4 is changed by 180 °, Since the movable bracket 1 for electric power lines is configured to be capable of retaining the curved metal fittings A1 and A2 in any direction, the same comparatively small vibration isolation pipe 4 is used, and the curve from any direction is used. The metal fittings A1 and A2 can also be connected, which can contribute to cost reduction by reducing the number of parts.

[Brief description of drawings]

FIG. 1 is a front view of a movable bracket.

FIG. 2 is a front view of an arm support fitting.

FIG. 3 is a side view of an arm support fitting.

FIG. 4 is a front view of a movable bracket according to another embodiment.

[Explanation of symbols]

1 movable bracket 2 Main pipe 3 Support pipe 4 Anti-vibration pipe 4a descending part 4b Horizontal part 4c Bend 5 Arm support bracket 5a connection part 5b arm 5c support A1, A2 curve fitting M auxiliary suspension overhead line T trolley wire

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hideo Omori             6-5-19 Minami-Shinagawa, Shinagawa-ku, Tokyo Sanwa             Inside Techki Co., Ltd. (72) Inventor Noboru Nakamura             6-5-19 Minami-Shinagawa, Shinagawa-ku, Tokyo Sanwa             Inside Techki Co., Ltd.

Claims (2)

[Claims] 1. A main pipe having a base end supported by a vertical support and extending horizontally, and a base pipe supported by the support below the main pipe and inclined so that its tip is connected to the vicinity of the tip of the main pipe. And a supporting pipe that extends so that one end is connected to the tip of the main pipe and the other end is connected to an intermediate portion of the supporting pipe; And an arm support metal fitting to which a curved wire fitting for holding the trolley wire is connected.The arm support metal fitting has a connection portion on the base end side for attaching to and detaching from the lower portion of the vibration isolation pipe. Then, in the middle, there is an arm portion that extends along the lower side of the vibration isolation pipe, and at the tip side, there is a support portion that bends from the arm portion and extends diagonally downward, 180 ° change to either left or right A movable bracket for an electric train line, which is also capable of retaining the curved pull metal fittings. 2. The support portion of the arm support fitting has a pair of parallel support plate portions for receiving and pivotally supporting the base end portions of the curved pull fitting between them, and the support plate portion is provided with the support plate portion. The movable bracket for an electric railway line according to claim 1, further comprising a stopper for preventing the curving metal fitting from rotating downward at a predetermined position.