JP2000108896A - Rail fastening device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail fastening device capable of laying a number of long rails even for an existing railway. SOLUTION: First and second rotary members 8 and 12 are supported so as to slide on a support 6 erected between a plurality of long rails 1, and first and second balance beams 22 and 26 bulged in both sides of the support 6 are supported to be swung on the first and second rotary members 8 and 12. Pressing beams 28, 30, 58 and 60 over the plurality of long rails are supported to be swung in both sides of the first and second balance beams 22 and 26. A conical spring 90 is provided for pressing the first and second balance beams 22 and 26 to press the pressing beams 28, 30, 58 and 60 to the long rails, and a cylinder 101 is provided to release the pressing by the conical spring 90.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail fastening device for fixing a plurality of long rails.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 7-304449, when a long rail is replaced, a new long rail is transported to a rail replacement location by a long rail transport vehicle, and a new long rail is placed beside the track. Down a long rail. In such a long rail transport vehicle, a rail fastening device is provided at the center to fix the long rail during transportation. The rail fastening device is configured such that a plurality of long rails are provided with uprights on both sides thereof, beams are provided between the pillars, and the long rails are fixed by the biasing force of a coil spring.

[0003]

However, in such a conventional apparatus, the width of the apparatus is increased because the columns are erected on both sides of the long rail and the beams are passed between them. When the track is wide and the curve is gentle like the Shinkansen, the width of the freight car can be widened and many long rails can be arranged side by side, but when the track is narrow and the curve is many and large like a conventional line, Not only does the number of long rails that can be mounted side by side decrease, but also there are concerns about safety.

[0004] It is an object of the present invention to provide a rail fastening device capable of safely mounting a large number of long rails even on a conventional line.

[0005]

In order to achieve the above object, the present invention takes the following means to solve the problem. That is, in a rail fastening device provided on a wagon equipped with long rails and fixing the long rails arranged in a plurality, the rotating member can be slid on a support standing between the plurality of long rails. Along with the support, the balance beam that protrudes on both sides of the column is swingably supported by the rotating member, and the holding beam spanning the plurality of long rails is swingable on both sides of the balance beam. The rail fastening device is characterized in that a spring for supporting and biasing the balancing beam to hold the long rail by the holding beam is provided, and a cylinder for releasing the bias by the spring is provided.

[0006] Further, the apparatus may be provided with an adjusting mechanism capable of adjusting a pressing position of the long rail by the pressing beam in a state where the urging by the spring is released. Furthermore, a configuration may be provided that includes a switching mechanism that switches the height of the swing center of the holding beam and the position in the left-right direction according to the type of the long rail.

[0007] Alternatively, the balancing beams may be provided in multiple stages, and the long rail may be mounted on the lower balancing beams. Further, a configuration may be adopted in which a regulating column for regulating the rotation of the balancing beam is provided in parallel with the support column.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes a long rail, and there are two types of long rails 1 of a conventional line: a 50 kg N rail, and a 60 kg rail having a larger cross-sectional area.

In the present embodiment, the wagon 2 is
Two rail fastening devices 4 are provided and are mounted in two stages, but may be one stage. In the case shown in FIG. 2, a long rail 1 of 60 kg rail is mounted on the left side and a long rail 1 of 50 kg N rail is mounted on the right side.
Is mounted.

As shown in FIG. 4, the rail fastening device 4 includes columns 6 erected on floor beams 2a provided on the wagons 2 so that the number of long rails 1 on both sides of the columns 6 is equal. It is erected in the center. The first rotating member 8, the collar 10, and the second rotating member 12 are slidably and rotatably mounted on the support 6 in this order from the bottom.

A first coil spring 14 is interposed between the step portion of the column 6 and the first rotating member 8, and the first rotating member 8
Is urged upward. In addition, a second coil spring 18 is interposed between the split ring 16 fitted to the column 6 and the second rotating member 12, and urges the second rotating member 12 upward.

A pair of first fulcrum pins 20 orthogonal to the support column 6 are inserted into the first rotating member 8, and the first balancing beam 22 is supported so as to be swingable around the first fulcrum pin 20. Have been. The first balancing beam 22 is formed so as to protrude on both sides of the column 6. On the other hand, the second rotating member 12 similarly supports a second balancing beam 26 swingably around the second fulcrum pin 24.

On both sides of the first balancing beam 22, a holding beam 2 formed to extend over a plurality of long rails 1 is provided.
8, 30 are swingably supported. As shown in FIGS. 7 and 8, a swing shaft 34 orthogonal to the column 6 is rotatably inserted into the boss member 32 of the holding beam 28. Swing axis 3
Eccentric disks 36 and 38 are fixed to both ends of 4, and the center a of the swing shaft 34 and the center b of the eccentric disks 36 and 38 are formed eccentric.

The eccentric disks 36 and 38 are rotatably inserted into through holes 40 and 42 formed in the first balancing beam 22, respectively.
45 are attached. As shown in FIG.
When the hands 4 and 45 are in the horizontal state, the side wall 46 (only one of which is shown) with which the side surfaces of the hands 44 and 45 are in contact is the first balancing beam 2.
2 and at the time of rail fastening described later, the eccentric disc 36,
It is configured to prevent the rotation of 38 via the hands 44 and 45.

When the pointers 44 and 45 are in contact with the side wall 46 and are in a state shown by a solid line that faces horizontally inward, the swing shaft 3
The center a of the eccentric disk 3 is located above the center b of the eccentric disks 36 and 38 and closer to the inside.
In the state shown by the two-dot chain line rotated by 180 degrees, the center a of the swing shaft 34 is configured to be lower than the center b of the eccentric disks 36 and 38 and closer to the outside. I have.

The center “a” of the swing shaft 34 changes in the vertical and horizontal directions, and the amount of change is the same as the height difference between the long rail 1 of the 50 kgN rail and the long rail 1 of the 60 kg rail. It is configured such that the amount of change in the left-right direction is the same as the difference between the positions where both long rails 1 are pressed evenly.

An insertion hole 48 is formed orthogonal to the through hole 40, and a nylon brake member 50 is inserted into the insertion hole 48 so as to contact the outer periphery of the eccentric disk 36. Then, it is pressed against the outer periphery by the screw 52 screwed into the insertion hole 48, and due to its own weight of the holding beam 28,
The eccentric disks 36 and 38 are braked so as not to rotate. In the present embodiment, the eccentric disks 36 and 38, the through holes 40 and 42, the hands 44 and 45, the brake member 50, and the screw 52 constitute a switching mechanism 54.

The other holding beam 30 is also supported by the first balancing beam 22 via the switching mechanism 56. The switching mechanism 56 is formed symmetrically to the switching mechanism 54 described above, and FIG. 2 shows a state in which the holding beam 30 holds down the long rail 1 of 50 kgN rail. Similarly, on both sides of the second balancing beam 26, holding beams 58, 60 are swingably supported, and both holding beams 58, 60 are also supported via switching mechanisms 62, 64, respectively.

On the other hand, as shown in FIG. 4, a through hole 66 is formed in the column 6 in the axial direction, and rods 68 having both ends protruding from the through hole 66 are slidably inserted. . A piston 70 is fixed to the lower end of the rod 68, and a cross-shaped flange 72 is fixed to the upper end.

As shown in FIG. 6, the cross-shaped flange 72 projects radially through a slit 74 formed in the support column 6 in the axial direction.
It is configured to be able to contact the end face of. A cap member 76 is screwed into the tip of the support 6, and a ring member 78 is rotatably mounted on the outer periphery of the cap member 76. The end member 80 is fixed to the cap member 78,
The ring member 78 is prevented from coming off. As shown in FIG. 1, the ring members 78 of the two rail fastening devices 4 are connected to the floor beam 2a via connecting members 82, 84 and 86.

The piston 70 is urged downward through a washer 92 by a disc spring 90 inserted into a bottomed hole 88 formed in the column 6. A piston 70 is slidably inserted into a slide hole 96 formed in a cylinder member 94 inserted into the bottomed hole 88, and hydraulic oil is supplied to a hydraulic chamber 98 formed by the piston 70 and the cylinder member 94. The supply hole 100 is formed in the cylinder member 94 so as to supply the air. Note that the cylinder 101 is constituted by the rod 68, the piston 70, and the cylinder member 94.

On the other hand, as shown in FIG. 2, on both outer sides of the long rail 1
A pair of regulating columns 102 and 104 are provided upright, and each regulating column 102 and 104 has a slit 10 along the axial direction.
6,108 are formed. Then, when the first and second balancing beams 22 and 26 are turned around the column 6 in the direction of the arrow shown in FIG. 3, the tips of the first and second balancing beams 22 and 26 come into contact with each other. Stopper members 110 to 11 for restricting rotation
3 are formed on both regulating columns 102 and 104. Also,
A stopper member 110 is attached to the first and second balancing beams 22 and 26.
To the slits 106, 10
Lever members 114 to 117 that can be inserted into the inside 8 are swingably provided at the distal ends of the first and second balancing beams 22 and 24.

Next, the operation of the rail fastening device of the present embodiment will be described. First, the first and second balancing beams 2
2, the lever members 114 to 117 at both ends are swung to an upright state as shown by a two-dot chain line in FIG.
The first and second balancing beams 22, 24 are turned in the directions opposite to the arrows in FIG. Thereby, the first and second balancing beams 22, 24 are provided.
Is made parallel to the long rail 1 to be mounted.

The long rails 1 are mounted on the wagon 2 and a plurality of long rails 1 are arranged on both sides of the column 6. In the case of the present embodiment, as shown in FIG. 2, five rails can be arranged on one side for a 50 kg N rail, and four rails can be arranged on one side for a 60 kg rail. The switching mechanisms 54, 56, 62, 64 are operated in accordance with the type of the long rail 1 to be mounted.

In the case of a 50 kg N rail, the switching mechanism 54
Then, the eccentric disks 36 and 38 are rotated so that the pointer 44 is on the left side, as indicated by the two-dot chain line in FIG. As a result, the center a of the swing shaft 34 is located below and outside the centers b of the eccentric disks 36 and 38, the height of the holding beam 28 is reduced, and the position moves outward.

In the case of a 60 kg rail, the switching mechanism 54 rotates the eccentric disks 36 and 38 so that the pointer 44 is on the right side as shown by the solid line in FIG. Accordingly, the center a of the swing shaft 34 is located above and inside the center b of the eccentric disks 36 and 38, the height of the holding beam 28 is increased, and the position is moved inward. The other switching mechanism 56,
The same operation is performed for 62 and 64 according to the type of the long rail 1.

Further, hydraulic oil is supplied to the hydraulic chamber 98 to push up the piston 70 against the urging force of the disc spring 90.
Therefore, the cruciform flange 72 is pushed up via the rod 68, so that the first and second balancing beams 22, 26 are pushed up by the coil springs 14, 18.

After arranging the long rails 1, the first balancing beam 2
2 is rotated until it hits the stopper members 110 and 112, and after hitting the stopper members 110 and 112, the lever members 114 and 116 are oscillated to rotate the lever members 114 and 112.
Insert 116 into slits 106 and 108. Thus, the turning of the first balancing beam 22 around the support column 6 is restricted.

Subsequently, a plurality of long rails 1 are placed on the first balancing beam 22. After arranging long rails 1,
The second balancing beam 26 is turned until it hits the stopper members 111 and 113, and after hitting the stopper members 111 and 112, the lever members 115 and 117 are swung so that the lever members 115 and 117 are inserted into the slits 106 and 108. insert. This restricts the turning of the second balancing beam 26 around the support column 6.

Next, when the supply of the hydraulic oil to the hydraulic chamber 98 is stopped, the piston 70 is pushed down by the urging force of the disc spring 90. Therefore, the rod 68 and the cross-shaped flange 72
, The second rotating member 12 is pushed down, and the second balancing beam 26 is also pushed down via the second fulcrum pin 24.

Accordingly, the holding beams 58 and 60 are pressed against the long rail 1, and the long rail 1 is fixed. The fastening force of the upper long rail 1 is further increased by the first balancing beam 2
2. It is transmitted to the lower long rail 1 via the holding beams 28 and 30, and fixes the long rail 1.

Even if the individual heights of the long rails 1 vary, the holding beams 28, 30, 58, 60
Swings around the swing shaft 34 and presses each long rail 1 evenly. In addition, rubber plates 120 to 123 are attached to the lower surfaces of the holding beams 28, 30, 58,
You may make it hold down the long rail 1 via 0-123.

Also, even if the long rails 1 on the left and right sides of the support column 6 vary in height, the first and second balancing beams 22, 26 can be used.
Swings around the first and second fulcrum pins 20, 24, and presses the left and right long rails 1 evenly. In the present embodiment, the first and second balancing beams 22, 26 are provided to form a two-stage structure. However, the present invention is not limited to this, and a one-stage structure or a three-stage structure may be employed.

In the embodiment described above, the case where a new long rail 1 having a constant height is fastened is described. The used long rail 1 used is lower in height than the new long rail 1. Therefore, the total reduction in the height of the upper and lower long rails 1 compared to the new long rail 1 Accordingly, the amount of extension of the disc spring 90 increases, and the fastening force of the long rail 1 decreases. Next, a second embodiment suitable for fastening a used long rail 1 will be described with reference to FIG.
It will be explained by. Note that the same members as those in the above-described embodiment are denoted by the same reference numerals, and detailed description is omitted.

In the second embodiment, the cross-shaped flange 72
Between the second rotating member 12 and the nut 124 with the handle.
The external thread portion 120 provided below the cross-shaped flange 72 is screwed into the nut with handle 124. By rotating the nut 124 with the handle, the distance between the cross-shaped flange 72 and the tip of the second rotating member 12 can be adjusted.

On both sides of each of the holding beams 28 and 58, child holding beams 126 to 129 straddling the two long rails 1 are swingably supported around fulcrum pins 130 and 132, respectively (only a part is shown). Do). In the second embodiment, the adjusting mechanism 134 is constituted by the nut 124 with the handle.

Then, after the used long rail 1 is placed in the same manner as in the above-described embodiment, the operating oil is supplied to the hydraulic chamber 98 to lift the first and second balancing beams 22 and 26. By rotating the nut with handle 124, the second rotating member 12 is pushed down. After each of the presser beams 126 to 129 is pressed down until it comes into contact with the long rail 1, the hydraulic oil is discharged from the hydraulic chamber 98.

Accordingly, the urging force of the disc spring 90 pushes down the second rotating member 12 via the cross-shaped flange 72 and the nut 124 with the handle, and the second fulcrum pin 24
The second balancing beam 26 is also pushed down via the. At this time, when the disc spring 90 starts to expand, the second rotating member 12 is pushed down, so that the urging force of the disc spring 90 can be used to the maximum. In the second embodiment, the case of the used long rail 1 has been described. However, the same effect can be obtained by using the new long rail 1 when fastening it.

Further, the presser holding beams 128 and 129 are pressed against the long rail 1 via the holding beam 58 and the fulcrum pin 132. Even if the heights of the long rails 1 vary, the presser holding beams 128 and 129 swing around the fulcrum pins 132 to press the long rails 1 on both sides substantially uniformly. The same applies to the lower long rail 1.
By providing the equalizing function, even if the long rails 1 vary in height, they can be fastened evenly.

The present invention is not limited to such an embodiment at all, and can be implemented in various modes without departing from the gist of the present invention.

[0041]

As described above in detail, in the rail fastening device of the present invention, a column is erected between a plurality of long rails and a balancing beam is supported by this column, so that the width of the device is reduced. This has the effect that it can be made smaller and can be equipped with many long rails even on conventional railway wagons.

By providing the switching mechanism, it is possible to easily fix different types of long rails. Further, by using a disc spring as the spring, the height can be reduced, the spring characteristics can be set freely, and the long rail can be fixed with a substantially constant urging force even when the height of the long rail is different.

[Brief description of the drawings]

FIG. 1 is a side view of a wagon provided with a rail fastening device as one embodiment of the present invention.

FIG. 2 is a front view of the rail fastening device of the embodiment.

FIG. 3 is a plan view of the rail fastening device of the present embodiment.

FIG. 4 is an enlarged sectional view of a main part of the rail fastening device of the embodiment.

FIG. 5 is an enlarged sectional view taken along the line AA of FIG. 2;

FIG. 6 is an enlarged sectional view taken along the line BB of FIG. 4;

FIG. 7 is an enlarged front view of the switching mechanism of the embodiment.

FIG. 8 is a sectional view taken along the line CC in FIG. 7;

FIG. 9 is an enlarged sectional view of a main part of a rail fastening device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Long rail 2 ... Freight car 4 ... Rail fastening device 6 ... Prop 8 ... 1st rotating member 12 ... 2nd rotating member 22 ... 1st balancing beam 26 ... 2nd balancing beam 28, 30, 58, 60 ... Holding Beams 36, 38 Eccentric disks 54, 56, 62, 64 Switching mechanism 68 Rod 70 Piston 72 Cross-shaped flange 98 Hydraulic chamber 101 Cylinder 102, 104 Regulatory column 124 Nut with handle

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Akiyuki Ito 1-1, Sanbonmatsucho, Atsuta-ku, Nagoya, Aichi Prefecture Inside Japan Vehicle Manufacturing Co., Ltd. No. 1 Inside Japan Vehicle Manufacturing Co., Ltd.

Claims (5)

[Claims] 1. A rail fastening device provided on a wagon equipped with long rails for fixing a plurality of long rails, wherein a rotating member is slid on a support standing upright between the plurality of long rails. In addition to movably supporting the balancing beam, the balancing beam projecting on both sides of the support is swingably supported by the rotating member, and a holding beam spanning the plurality of long rails is swinging on both sides of the balancing beam. A rail fastening device, comprising: a spring movably supported, and a spring for urging the balancing beam to press the long rail with the holding beam, and a cylinder for releasing the urging by the spring is provided. 2. In a state where the urging by the spring is released,
The rail fastening device according to claim 1, further comprising an adjustment mechanism capable of adjusting a position where the holding rail holds the long rail. 3. A switching mechanism for switching the height of the swing center of the holding beam and the position in the left-right direction according to the type of the long rail.
The rail fastening device as described. 4. The rail fastening device according to claim 1, wherein the balancing beam is provided in multiple stages, and the long rail is mounted on the lower balancing beam. 5. The rail fastening device according to claim 1, wherein a regulating column for regulating the rotation of the balancing beam is provided upright in parallel with the support column.