JP2652490B2 - Telescopic rail device for railway work vehicles - Google Patents

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, a manual type is known. This is a type in which a worker manually pulls out a movable rail placed on a fixed rail fixed to a storage place of a work vehicle when necessary, and extends the rail to a predetermined position.

[0003]

The telescopic rail device for a working vehicle extends on a railway line so as to intersect with it, so that the telescopic operation can be performed quickly according to the passing time of a train. There is a need. However, the moving operation is not easy because the movable rail is heavy. On the other hand, there is a device for moving a movable rail in and out by a hydraulic cylinder.
No. 3-219701) is to connect two rail devices in series to expand and contract, and because a hydraulic cylinder is provided to move the entire device up and down, the installation of the device becomes large and fixed. Since the widths of the upper surface of the rail and the movable rail are different, there is a problem that the traveling of the work vehicle on the movable rail becomes unstable. Accordingly, an object of the present invention is to provide a telescopic rail device for a railway work vehicle that can move the movable rail easily and quickly with a simple structure and that allows the work vehicle to run smoothly and stably. And

In the present invention, a movable rail 2 having a substantially U-shaped cross section on the upper surface having the same width as the upper surface of the fixed rail 1 is mounted on the fixed rail 1 fixed to the storage place of the work vehicle C. In a rail device in which the movable rail 2 is moved on the fixed rail 1 so as to intersect the railway line in a direction orthogonal to the fixed rail 1 by a driving device provided between the fixed rail 1 and the movable rail, Protruding support piece 15
And a roller 20 for rolling the upper surface of the support piece 15 is provided on the movable rail 2, and a slope 16 for relatively lowering the movable rail 2 is provided at both ends of the support piece 15 to provide a rail work vehicle. The telescopic rail device 31 was configured.

[0005]

The telescopic rail device 31 for a railway work vehicle according to the present invention.
Is in a reduced 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. In this state, the work vehicle C has the traversing wheels W
1 is stored on a movable rail 2. At the time of use, first lift the vehicle C with the attached lift device,
With the movable rail 2 free, the movable rail 2 on the fixed rail 1 is moved in the length direction by the driving device, and is extended so as to intersect on the railway line R. At this time, since the roller 20 rolls in contact with the support piece 15, the movable rail 2 moves smoothly. Further, since the upper surface of the movable rail 2 has the same width as the upper surface of the fixed rail 1, the traversing wheel of the work vehicle corresponding to this width stably rolls without lateral displacement. In the fully reduced position and the maximum extended position of the movable rail 2, the roller 20 descends along the slope of the support piece 15, so that the movable rail 2 relatively descends. Therefore, when the movable rail 2 is maximally extended, a flat surface continuous with the upper surface of the fixed rail 1 can be formed, and when the movable rail 2 is completely reduced, it can be placed on the fixed rail. In addition, at both positions, the slope 16 of the support piece 15 becomes a resistance to the rolling of the roller 20 to be in a fixed state, and the position can be confirmed as a response in operation. Conversely, when the movable rail 2 moves, the movable rail 2 rises relatively to the fixed rail 1, so that the vehicle travels over the railway line R with a margin. Then, the vehicle body of the work vehicle C is lowered, and the traversing wheel W1 is lowered on the fixed rail 1, and the rolling wheel W1 is rolled on the fixed rail 1 and the movable rail 2 to move to the railroad track R. Here, the vehicle body is lifted again, and the movable rail 2 is returned by the driving device in the opposite direction. Thereafter, the vehicle body is lowered and the wheels W
2 is dropped on the railroad track R. Then, the work vehicle C moves on the railway track R to a predetermined work place. When returning the work vehicle C to the storage location, work is performed in the reverse procedure.

[0006]

An embodiment of the present invention will be described with reference to the drawings. 1 is a schematic plan view of the telescopic rail device according to the present invention, FIG. 2 is a schematic front 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, 4 is a front view of the distal end side of the telescopic rail device according to the present invention, FIG. 5 is a side view of the proximal end side of the telescopic rail device according to the present invention, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7, FIG. 9 is a front view of a connecting portion of the telescopic rail device according to the present invention in an extended state, and FIG. FIG. 7 is a front view of a part of another embodiment of the present invention.

In FIG. 1 and FIG. 2, a fixed rail 1 is laid on a base B of a storage location of a work vehicle C in a direction substantially orthogonal to a railway line R. As shown in FIG. 8, a space S through which the chain 14 passes is formed between the fixed rail 1 and the foundation B. 1 and 2, the movable rail 2
Extends in a direction intersecting with the railroad track R continuously to the front end side of the fixed rail 1, but extends on the fixed rail 1 in the axial direction so that it can be placed on the fixed rail 1 when not in use. Can be moved.

As shown in FIGS. 3 and 5, a motor 3 is fixed to an upper portion of the fixed rail 1 on the base end side, and a sprocket 5 is fixed to an output shaft of the motor 3 via a torque limiter 4. A shaft 6 is provided below the fixed rail 1 and below the motor 3, and a drive chain 8 is looped between a sprocket 7 fixed to one end of the shaft 6 and the sprocket 5. ing. A pair of sprockets 9, 9 are fixed to an intermediate portion of the shaft 6 at a distance from each other. The sprocket 9 includes a pair of sprockets 10 and 10 provided at a lower portion on the distal end side of the fixed rail 1.
(FIG. 4), and these sprockets 9, 1
Between the zeros, a chain 14 is wound via intermediate sprockets 11, 12, and 13.

As shown in FIG. 3, on both side surfaces of the fixed rail 1, support pieces 15 for rolling the rollers 20 of the movable rail 2 protrude horizontally and extend in the longitudinal direction. The support piece 15 is lowered via the slope 16 at both ends. Therefore, in the extended state and the contracted state, the roller 20 is below the slope 16. For this reason, the upper surface of the movable rail 2 coincides with the upper surface of the fixed rail 1 in the extended state, and the lower surface of the movable rail 2 overlaps the upper surface of the fixed rail 1 in the contracted state. The sprockets 11 and 13 are mounted on the lower surface of the fixed rail 1, and the sprocket 12 is mounted on a bracket 17 fixed to the lower surface of the fixed rail 1, and both are disposed inside the cover 18. As shown in FIG. 6, rollers 26 are provided on both lower side surfaces on the distal end side of the fixed rail 1 for placing the lower edge of the movable rail 2 and smoothing its movement.

As shown in FIG. 6, the movable rail 2 has a substantially U-shaped cross section, and is fitted on the fixed rail 1. As shown in FIG. 8, roller mounting plates 19 are fixed to both side surfaces on the base end side of the movable rail 2, and a pair of rollers 20, which roll on the support pieces 15 of the fixed rail 1, are provided inside the plate. 20 is supported. A vertically long guide recess 21 is formed inside the roller mounting plate 19, and the roller recess 23 is supported by the connecting plate 22 of the chain 14.
Is fitted. Therefore, the movable rail 2 is connected to the chain 14 via the roller 23. Roller 2
3 can move up and down in the guide recess 21. A recess 27 is formed at the lower edge of the movable rail 2 at the position corresponding to the roller 26 in the reduced state. Therefore, in the contracted state, the roller 20 moves on the slope 1
6 and the recess 27 of the movable rail 2 is on the roller 26, so that the lower surface of the movable rail 2 is flatly overlapped with the upper surface of the fixed rail 1.

The telescopic rail device 31 of 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 C is stored in a storage location on the base end side of the rail device 31 with the traversing wheel W1 placed on the movable rail 2. At the time of use, first, the vehicle C is lifted by the attached lift device, and the chain 14 looped between the sprockets 9 and 10 at both ends of the fixed rail 1 is pulled by the motor 3 with the movable rail 2 being free. Since the chain 14 is connected to the movable rail 2 via the coupling plate 22 and the rollers 23, the movable rail 2 moves on the fixed rail 1 in the length direction and extends so as to intersect on the railway line R. Put out. At this time, the roller 20 rolls on the support piece 15 of the fixed rail 1. When the movable rail 2 reaches the maximum extension position, as shown in FIG.
Move down the slope 16 of the support piece 15, the movable rail 2 descends, and the movable rail 2 and the fixed rail 1 are continued with the upper surface of the base end coinciding with the upper surface of the distal end of the fixed rail 1. When the rail device 31 is extended, the body of the work vehicle C is lowered, the traversing wheel W1 is lowered on the fixed rail 1, and the rolling wheel W1 is rolled on the fixed rail 1 and the movable rail 2 so that the railway track R (FIGS. 1 and 2). Here, the vehicle body is lifted again, and the movable rail 2 is returned by pulling the chain 14 in the opposite direction. When the movable rail 2 reaches the fully reduced position, as shown in FIG. 3, the roller 20 goes down the slope 16 of the support piece 15, the movable rail 2 descends, and the lower surface thereof overlaps the upper surface of the fixed rail 1. State. Thereafter, the vehicle body is lowered, and the wheel W2 is lowered on the railway line R. Then, the work vehicle C moves on the railway track R to a predetermined work place. When returning the work vehicle C to the storage location, work is performed in the reverse procedure.

A pair of rail devices 31 are provided so as to face each other on both sides of the railway track R, and the work vehicle C can be moved to a storage place on either the left or right side. Further, if necessary, the pair of left and right rails can be simultaneously extended and contracted, or can be individually extended and contracted.

As shown in FIG. 10, a manual winch 24 is fixed to the base end of the fixed rail 1 in addition to the motor 3, and the other end of the wire 25 having one end fixed to the winch 24 is connected to the winch 24. By connecting to the base end of the movable rail 2, the movable rail 2 can be easily returned manually. When an operation failure of the motor 3 occurs, the movable rail 2 can be quickly returned.

[0014]

As described above, according to the present invention, the upper surface of the fixed rail 1 having the same width as the upper surface of the fixed rail 1 is placed on the fixed rail 1 fixed to the storage place of the work vehicle C. A movable rail 2 is placed on the movable rail 2 and the movable rail 2 is moved on the fixed rail 1 by a driving device provided between the fixed rail 1 and the movable rail. A roller 2 that rolls on the movable rail 2 on the upper surface of the support piece 15
0, and the slope 16 for relatively lowering the movable rail 2 is provided at both ends of the support piece 15 to form the telescopic rail device 31 for a railway work vehicle. And the work vehicle can be smoothly and stably moved.

[Brief description of the drawings]

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

FIG. 2 is a schematic front 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 side view of the base end side of the telescopic rail device according to the present invention.

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

FIG. 7 is a front view of a part of the telescopic rail device according to the present invention.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a front view of a connecting portion of the telescopic rail device according to the present invention in an extended state.

FIG. 10 is a front view of a part of another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 fixed rail 2 movable rail 3 motor 9 sprocket 10 sprocket 14 chain R railway track

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshifumi Kobori 2703 Nakaokamoto, Kawachi-cho, Kawachi-gun, Tochigi Sanwa Tec Co., Ltd.Utsunomiya Plant (72) Inventor Masato Osawa 27033 Nakaokamoto, Kawachi-cho, Kawachi-gun, Tochigi Inside the Utsunomiya Factory

Claims (1)

(57) [Claims] 1. A fixed rail fixed to a storage location in a direction substantially orthogonal to the railway line, for moving the work vehicle from the storage location of the work vehicle provided on the side of the railway line to the railway line, A movable rail having a U-shape and fitted on the fixed rail, wherein the movable rail is moved on the fixed rail by a driving device provided on the fixed rail so as to be expandable and contractable. The fixed rail has a support piece that protrudes substantially horizontally on both side surfaces and extends in the extension direction of the rail, the support piece has slopes at both ends in the extension direction, and the movable rail includes the fixed rail. A rail having an upper surface having the same width as the upper surface of the support piece, and having rollers capable of rolling on the upper surface of the support piece, and being relatively descentable along the slope at both ends of the support piece. Work vehicle extension Rail equipment.