JP2001146701A - Expansion rail device for railway working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion rail device for a railway working vehicle capable of simply and quickly making the movement of a movable rail by manual operation when the operation of a motor is impossible. SOLUTION: A movable rail 2 ia mounted on a fixed rail fixed to a storage for a working vehicle A so as to make it possible to move in the direction of tha axis, a chain 12 is wrapped around sprockets 6, 8, 9, 10 and 11 provided both ends and a middle part of the fixed rail 1, the middle part of the chain 12 is locked with the movable rail 2, the chain 12 is pulled around by a motor 3, and the movable rail 2 is moved on the fixed rail 1. The sprocket 11 is fixed on a shaft 14 borne by a bracket in a rotatable manner, one end side of the shaft is projected from the bracket, and a manual rotating tool such as a wrench can be loaded with the projection as a square shaft 14a. When the rotation of the motor is stopped by power failure or the like during the expansion operation of the movable rail 2, and the manual rotating tool such as wrench is loaded to the square shaft 14a of the intermediate sprocket 11 to continue the expansion operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of moving a work vehicle from a storage place of a work vehicle provided on a side of a railway line to a railway line so that the vehicle can extend and contract so as to intersect the railway line in a direction substantially orthogonal to the railway line. The present invention relates to a rail device provided in a vehicle.

[0002]

2. Description of the Related Art Conventionally, as a telescopic rail device for a railway work vehicle, for example, a telescopic rail device described in Japanese Patent Application Laid-Open No. 6-193004 is known. This is a type in which a movable rail placed on a fixed rail fixed to a storage place of a work vehicle is pulled out by a motor drive as needed, and the rail is extended to a predetermined position. The sprockets provided at both ends of the fixed rail are attached, the way of the chain hung around this sprocket is locked by the movable rail, and the movable rail is moved on the fixed rail by pulling this chain by motor drive. It is made to let.

[0003]

In the conventional telescopic rail device for a work vehicle described above, if a power failure occurs during the telescopic operation by driving a motor, the telescopic rail device cannot be manually and rapidly operated to expand and contract. Accordingly, an object of the present invention is to provide a telescopic rail device for a railway work vehicle that can easily and quickly move a movable rail by manual operation when operation of a drive motor is impossible.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a movable rail 2 is mounted on a fixed rail 1 fixed to a storage location B of a working vehicle A so as to be movable in an axial direction. The chain 12 is wrapped around sprockets 6, 8, 9, 10, and 11 provided at both ends and an intermediate portion of the fixed rail 1, and is locked on the movable rail 2 along the way. The intermediate sprocket 11 is fixed on a shaft 14 rotatably supported by a bracket 15, and at least one end of the shaft 14 is separated from the bracket 15 by moving the movable rail 2 on the fixed rail 1. The protrusion was used as a square shaft 14a, on which a manual rotating tool such as a wrench could be mounted. In the telescopic rail device for a railway work vehicle according to the present invention, the motor 12 pulls the chain 12, thereby moving the movable rail 2 on the fixed rail 1 to the axis line, and extending it so as to intersect the railway line R. Let it. If the rotation of the motor stops due to a power failure or the like during the expansion / contraction operation, a manual rotation tool such as a wrench is attached to the shaft 14 of the intermediate sprocket 11, and the expansion / contraction operation is continued.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. 1 is a schematic front view of the telescopic rail device according to the present invention, FIG. 2 is a cross-sectional view of the telescopic rail device according to the present invention, FIG. 3 is a front view of the base end side of the telescopic rail device according to the present invention, FIG. FIG. 5 is a front view of the distal end side of the telescopic rail device according to the present invention, FIG. 5 is a front view of the telescopic rail device according to the present invention in the course of a telescopic operation, and FIG. 6 is a sectional view taken along the line VI-VI in FIG.

In FIG. 1 and FIG. 2, a fixed rail 1 is laid in a storage location B of a work vehicle A in a direction substantially orthogonal to a railway line R. In FIG. 1, the movable rail 2 extends continuously from the front end of the fixed rail 1 so as to intersect with the railway line R. However, as shown in FIGS. Can be moved on the fixed rail 1 in the axial direction so as to be able to be placed on the fixed rail 1.

As shown in FIGS. 1 and 3, a motor 3 is mounted on an upper portion of the fixed rail 1 on the base end side, and a sprocket 4 is fixed to an output shaft thereof. A shaft 5 is provided under the fixed rail 1 at a lower portion on the base end side, and a drive chain 7 is connected to a sprocket 6 fixed to the shaft 5. The sprocket 6 is opposed to a sprocket 8 (FIGS. 1 and 4) provided at a lower portion on the distal end side of the fixed rail 1, and intermediate sprockets 9, 10 and 11 are provided between the sprockets 6 and 8. The chain 12 is hung around.

As shown in FIG. 2, on both side surfaces of the fixed rail 1, support pieces 1a for rolling the rollers 13 of the movable rail 2 protrude horizontally and extend in the longitudinal direction. In the extended state of FIG. 1, the roller 13 moves down the slope 1 of the support piece 1 a (not shown) so that the upper surface of the movable rail 2 coincides with the upper surface of the fixed rail 1. The shaft 14 of the sprocket 11 is supported by a bracket 15 fixed to the lower surface of the fixed rail 1. The shaft 14 is a square shaft 14 on which both ends protruding outward from the bracket 15 can be mounted with a rotary operation tool such as a ratchet wrench.
a.

The telescopic rail device for a railway work vehicle according to this embodiment is in a contracted state when not in use so as not to obstruct a train passing on the railway line R. In the contracted state, the movable rail 2 is placed on the fixed rail 1 as shown by a virtual line in FIG. In this state, the work vehicle A is stored in the storage place B with the traversing wheel W1 mounted on the movable rail 2. In use, first, the vehicle A is lifted by the attached lift device, and the chain 12 is pulled by the motor 3 with the movable rail 2 being free. As shown in FIG. 5, the chain 12 is connected to the base end of the movable rail 2 via the connecting plate 16 on the way, so that the movable rail 2 moves on the fixed rail 1 in the length direction. As shown in FIG. 1, the movable rail 2 and the fixed rail 1 extend so as to intersect on the railway line R. When the rail is extended, the vehicle body of the work vehicle A is lowered, and the traversing wheel W1 is lowered on the fixed rail 1, and this is rolled from the fixed rail 1 onto the movable rail 2 to form the railroad R. Move up (FIG. 1). Here, lift the car body again and use chain 1
The movable rail 2 is returned by pulling the movable rail 2 in the opposite direction.
When the movable rail 2 reaches the completely reduced position and overlaps the fixed rail 1, the work vehicle A is lowered, and the wheel W2 is lowered onto the railway line R. Then, the work vehicle A moves on the railway line R to a predetermined work place. When returning the work vehicle A to the storage location B, work is performed in the reverse procedure. When the rotation of the motor 3 is stopped due to a power failure or the like during the expansion / contraction operation, after performing necessary adjustments such as releasing a torque limiter provided with an output shaft of a speed reducer (not shown), the square shaft of the intermediate sprocket 11 is adjusted. By attaching a manual rotation tool such as a wrench to 14a and pulling the chain 12, the expansion and contraction operation is immediately continued.

[0010]

As described above, in the present invention, the chain 12 is drawn around by the motor 3, thereby moving the movable rail 2 on the fixed rail 1 in the axial direction, and crossing the rail 12 on the railway line R. To extend. If the rotation of the motor 3 stops due to a power failure or the like during the expansion / contraction operation, a manual rotation tool such as a wrench can be mounted on the square shaft 14a of the intermediate sprocket 11, and the work can be continued promptly. It has the effect of being able to.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a telescopic rail device according to the present invention.

FIG. 2 is a sectional view of a telescopic rail device according to the present invention.

FIG. 3 is a front view of a base end side of the telescopic rail device according to the present invention.

FIG. 4 is a front view of the distal end side of the telescopic rail device according to the present invention.

FIG. 5 is a front view of the telescopic rail device according to the present invention during a telescopic operation.

FIG. 6 is a sectional view taken along line VI-VI in FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 fixed rail 2 movable rail 3 motor 11 sprocket 12 chain 14 axis 14a square axis 15 bracket R railway track

Continued on the front page (72) Inventor Moriaki Hotta 2-4-2, Shibata, Kita-ku, Osaka-shi Inside West Japan Railway Company (72) Inventor Koji Ishimoto 2-4-2, Shibata, Kita-ku, Osaka West Japan passenger Inside the Railway Company (72) Inventor Morita Maruhei 2-4-2, Shibata, Kita-ku, Osaka-shi Inside the West Japan Railway Company (72) Inventor Yoshifumi Kobori 2703 Nakaokamoto, Kawachi-cho, Kawachi-gun, Tochigi Prefecture Miwa Tec Utsunomiya Factory Co., Ltd.

Claims (1)

[Claims] 1. A rail device provided to extend and contract so as to intersect with a railway line in a direction substantially orthogonal to the railway line in order to move the vehicle from a storage location of the vehicle on a side of the railway line to a railway line. A fixed rail fixed to the storage location, a movable rail placed on the fixed rail so as to be movable in the axial direction, and a main sprocket and an intermediate portion provided at both ends of the fixed rail. While being sequentially wound around a plurality of provided intermediate sprockets, the way is locked to the movable rail,
A stretchable rail device for moving the movable rail on the fixed rail by pulling the chain, wherein at least one of the intermediate sprockets is rotatably supported by a bracket. A telescopic rail device for a railway work vehicle, wherein a tool for manual rotation such as a wrench can be mounted on at least one end of the shaft protruding from the bracket.