JPH044007Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a level adjustment support device for a rail fastening device that is used when the railway trackbed ground is frozen and the rails curve vertically in a waveform. be.

[Conventional technology]

On railway tracks in cold regions, the trackbed ground freezes and expands upward, and the amount of expansion varies depending on the moisture content of the trackbed ground, so the rails may curve vertically in a waveform. When the rail curves into a waveform like this, it is necessary to adjust the level of the rail by moving the rail at the low level part of the waveform upward.

Conventionally, as a rail level adjustment support device,
As shown in FIG. 7, a level adjusting wooden plate 13 is interposed between the tie pad 2 and the rail flange 5, and a level adjusting wooden plate 14 is interposed between the sleeper 1 and the clip holder 4. are known.

[The problem that the idea aims to solve]

In the case of the conventional rail level adjustment support device, the three level adjustment wooden boards 13 and 14 must be inserted at one rail fastening part, so the level adjustment support work is complicated.
Furthermore, there is a possibility that the level adjusting wooden boards 13 and 14 may shift relative to each other.

This invention allows the level of the rail fastening device to be easily adjusted by a simple operation, and also prevents the clip holder level adjustment plates on both sides of the rail from shifting relative to the tie pad level adjustment plates. It is an object of the present invention to provide a level adjustment support device for a rail fastening device that can prevent this.

[Means to solve the problem]

In order to achieve the above object, in the level adjustment support device of the rail fastening device of this invention, a rail 3 is placed on the sleeper 1 via tie pads 2, and the rail 3 is placed on the sleeper 1 on both sides of the rail 3. In a rail fastening device in which a rail clip 6 is placed across the clip holder 4 and the rail flange 5, and the rail clip 6 is tightened with bolts 7, the tie pad level adjustment plate 8 is adjusted in the rail width direction. A clip holder level adjustment plate 10 is connected to both sides via a connection plate 9 to form a level adjustment plate 11.
A bolt accommodating slit 12 extending from one end in the longitudinal direction of the rail to the middle part is provided in each connecting plate 9 in the rail.
A level adjustment plate 11 is inserted between the sleeper 1, the tie pad 2 and each clip holder 4 from the longitudinal direction of the rail, and the bolt 7
The middle portion of the slit 12 is accommodated in the slit 12.

[Effect]

With the bolts 7 loosened and the rails 3 and rail clips 6 moved upward, there is a
The level adjustment plate 11 is inserted from the longitudinal direction of the rail, and the tie pad level adjustment plate 8 of the level adjustment plate 11 is interposed between the sleeper 1 and the tie pad 2.
The clip holder level adjustment plate 10 of the level adjustment plate 11 is interposed between the level adjustment plate 11 and the intermediate portions of the bolts 7 on both sides of the rail 3 are accommodated in the slits 12 of the level adjustment plate 11. Tighten the rail clip 6 with.

〔Example〕

Next, this invention will be explained in detail using illustrated examples.

3 to 5 show the level adjustment plate 11 used in the embodiment of this invention, in which the tie pad level adjustment plate 8 on which the tie pad 2 is placed has a level adjustment plate 11 arranged upwardly at both ends in the longitudinal direction of the rail. A slip prevention protrusion 15 that protrudes and extends in the rail width direction is integrally provided, and a protrusion insertion groove 16 that opens downward is provided at the bottom of the slip prevention protrusion 15, and the tie pad level. Clip pedestal level adjustment plates 10 are connected to both sides of the adjustment plate 8 in the rail width direction via inclined connection plates 9, and each connection plate 9 is provided with a bolt extending from one end in the longitudinal direction of the rail to the middle part. An insertion slit 12 is provided.

1 and 2 show a level adjustment support device for a rail fastening device using the level adjustment plate 11, which is screwed into an embedded plug 17 embedded and fixed in the sleeper 1. With the bolts 7 loosened and the rails 3 and rail clips 6 moved upward, a level adjustment plate 11 is placed between the sleeper 1, the tie pad 2, and the clip holders 4 on both sides of which also serve as rail gauge adjustment wedges. The intermediate portions of the bolts 7 and the upper ends of the embedded plugs 17 inserted from the longitudinal direction of the rail 3 on both sides of the rail 3 are accommodated in the bolt accommodating slits 12 in the level adjustment plate 11, and the tie pad level adjustment plate A trapezoidal portion consisting of a connecting plate 8 and connecting plates 9 connected on both sides thereof is fitted into a trapezoidal portion of the sleeper 1.

A tie pad level adjusting plate 8 of the level adjusting plate 11 is interposed between the sleeper 1 and the tie pad 2, and a level adjusting plate 11 is interposed between the sleeper 1 and the clip holders 4 on both sides of the rail 3.
A clip holder level adjustment plate 10 is interposed between the rail clips 6 and a spring clip placed between the clip holder 4 and the rail flange 5. The middle part of the rail clip 6 is tightened by the bolt 7, and the rail clip A lateral pressure receiving fitting 18 is interposed between the rising end of the lower outer side of the rail flange 6 and the side of the rail flange 5.

FIG. 6 shows a state in which two level adjustment plates 11 and 11A are stacked and interposed between the sleeper 1, the tie pad 2, and the clip holders 4 on both sides thereof. Note that the thickness of the two level adjustment plates 11 and 11A that are used stacked may be the same,
Alternatively, they may have different thicknesses.

In the embodiment described above, the bolt 7 is made up of a threaded rod 19 and a nut 20 screwed into the bolt, but a bolt having a polygonal head integrally provided at the end of the threaded rod may also be used. Furthermore, three or more level adjusting plates having the same or different thicknesses may be interposed between the sleeper 1, the tie pad 2, and the clip holders 4 on both sides thereof.

As in the above embodiment, if the anti-slip protrusion 15 and the protrusion insertion groove 16 are provided at both ends of the tie pad level adjustment plate 8 in the longitudinal direction of the rail, the slippage movement of the tie pad 2 in the longitudinal direction of the rail can be prevented. It is also possible to prevent relative displacement of the level adjustment plates 11 when a plurality of level adjustment plates 11 are used in a stacked manner.

If the upper end of the embedded plug 17 is not to protrude from the surface of the sleeper 1, the width of the bolt accommodating slit 12 may be made smaller than the diameter of the upper end of the embedded plug 17.

[Effect of idea]

This idea is structured as described above, so
This produces the effects described below.

With the bolts 7 loosened and the rails 3 and rail clips 6 moved upward, there is a
The level adjustment plate 11 is inserted from the longitudinal direction of the rail, and the tie pad level adjustment plate 8 of the level adjustment plate 11 is interposed between the sleeper 1 and the tie pad 2.
The clip holder level adjustment plate 10 of the level adjustment plate 11 is interposed between the level adjustment plate 11 and the intermediate portions of the bolts 7 on both sides of the rail 3 are accommodated in the slits 12 of the level adjustment plate 11. Since the level of the rail fastening device can be adjusted by tightening the rail clip 6 with Furthermore, since the tie pad level adjusting plate 8 and the clip cradle level adjusting plates 10 arranged on both sides are connected via the connecting plate 9, each clip cradle level adjusting plate 1
0 can be prevented from shifting relative to the tie pad level adjustment plate 8.

[Brief explanation of the drawing]

1 and 2 show a level adjustment support device for a rail fastening device according to an embodiment of this invention, FIG. 1 is a partially longitudinal front view, and FIG. 2 shows some parts. It is a top view which shows it removed. 3 to 5 show the level adjustment plate used in the embodiment of this invention, in which FIG. 3 is a plan view, FIG. 4 is a front view, and FIG.
FIG. 3 is an enlarged cross-sectional view taken along line A. FIG. 6 is a partially vertical front view showing a level adjustment support device for a rail fastening device according to an embodiment of the invention using two level adjustment plates stacked on top of each other. FIG. 7 is a partially vertical front view showing a level adjustment support device of a conventional rail fastening device. In the figure, 1 is a sleeper, 2 is a tie pad,
3 is a rail, 4 is a clip holder, 5 is a rail flange, 6 is a rail clip, 7 is a bolt, 8 is a tie pad level adjustment plate, 9 is a connection plate, 10 is a clip holder level adjustment plate, 11 is a level adjustment board, 1
2 is a slit for accommodating a bolt, 15 is a protrusion for preventing slippage, and 16 is a groove for inserting the protrusion.

Claims (1)

[Scope of utility model registration request] A rail 3 is placed on the sleeper 1 via tie pads 2, and a rail clip 6 is placed on both sides of the rail 3 across the clip holder 4 placed on the sleeper 1 and the rail flange 5, In the rail fastening device in which the rail clip 6 is tightened with bolts 7, clip pedestal level adjustment plates 10 are connected to both sides of the tie pad level adjustment plate 8 in the rail width direction via connection plates 9 to level the rail. An adjustment plate 11 is constructed, and each connection plate 9 of the level adjustment plate 11 is provided with a bolt accommodating slit 12 extending from one end in the longitudinal direction of the rail to the middle part, and the sleeper 1, tie pad 2, and each clip receiver are A level adjustment support device for a rail fastening device, in which a level adjustment plate 11 is inserted between the base 4 and the rail from the longitudinal direction, and the intermediate portion of the bolt 7 is housed in the slit 12.