JP2531115Y2 - Rail fastening device for rail widening - Google Patents

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 widening a rail.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional rail fastening structure, in which a concave seat surface c for fixing a rail b provided on a concrete sleeper a.
Then, a spring receiving base d is mounted, and a rail fastening bolt f penetrating a leaf spring e mounted on the spring receiving base d is screwed and tightened to an embedding plug g embedded in the sleeper a. The rail b is configured to be fastened to the sleeper a.

[0003] In the figure, h is a washer, and i is a track pad.

[0004]

In the above-described conventional structure, fine adjustment in the left-right direction of the rail is possible by exchanging the slide leaf spring of the spring support.
In the gauge widening work such as changing a 67 mm narrow gauge to a standard gauge of 1435 mm gauge, conversion for each rail support was necessary, and the work became extensive.

The present invention has been proposed in view of the above-mentioned problems of the prior art. The purpose of the present invention is to simplify the gauge widening work that requires conversion for each rail support, thereby saving labor. It is another object of the present invention to provide a rail fastening device for widening a gauge, which has a reduced construction cost.

[0006]

In order to achieve the above-mentioned object, a rail fastening device for widening a rail according to the present invention has a wide rail capable of widening between rails having a predetermined inclination angle in a rail longitudinal direction at a rail stationary portion. A rail support with a concave seating surface,
A central embedding plug for rail fastening buried at the center in the width direction of the concave seating surface of the rail support, and a rail or temporary shoulder block fastening side embedding embedded on the left and right sides of the embedding plug, It is composed of a rail or a temporary shoulder block fastening member screwed onto each of the embedding plugs.

[0007]

As described above, the rail fastening device for widening the rail between the rails according to the present invention includes the center embedded plug on the wide recessed seating surface provided on the rail support, and the left and right embedded plugs of the same embedded plug. Before embedding, one outer plug is used for fastening a temporary shoulder block, and two inner plugs are inserted before the widening.
The embedding plug is used for rail fastening, and at the time of gauge widening, the temporary shoulder block on the outside before the gauge widening is moved inward, and screwed to the inner embedding plug via the fastening member,
Tightening, the central embedding plug is used as it is for rail fastening, and the temporary embedding plug for shoulder block fastening before gauge expansion is screwed together with the central embedding plug via the fastening member for rail fastening, By tightening, the center distance between the rails is moved by the distance between the rails.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Reference numeral 1 denotes a rail support made of a concrete sleeper or the like, which is provided with a wide and wide recessed seating surface 1a having a predetermined inclination angle in the longitudinal direction of the rail 2.

At the center in the width direction of the recessed seating surface 1a, an embedding plug 3 for fastening a rail is embedded. 3 'and 3 "are buried. Before widening, as shown in FIGS. 1 and 4, the center plug 3 and the rail fastening screwed to the right plug 3" are fastened. The rail 2 is fastened to the rail support 1 via a bolt 4 and a leaf spring 5. In the figure, 6 is a track pad, 7 is a spring cradle, and 8 is a washer.

Reference numeral 9 denotes a temporary shoulder block which is screwed and tightened to the left plug 3 'via the bolt 4, and is provided on a left side plate of the rail 2 by a spring receiving base 7 disposed at an inner end of the block. A spring 5 is supported. When the gauge is widened, the temporary shoulder block 9 is removed as shown in FIGS. 2 and 5, and is screwed to the left-side plug 3 'for fastening the block 9 and the central plug 3 at the center. The temporary shoulder block 9 is fastened by the rail fastening bolt 4 screwed to the right embedding plug 3 ″, and the rail 2 is fastened by the rail fastening bolt 4 provided. By supporting the leaf spring 5 by the receiving base 7, the rail is widened without changing the rail support 1.

Also, as shown in FIGS. 3 and 6, the rail 2 is arranged in place of the temporary shoulder block 9 in the widened portion, and the rail 2 is fastened by a usual rail fastening device, so that it is possible to cope with a four-wire structure. It is.

[0012]

According to the present invention, as described above, a central embedding plug for rail fastening is buried in the wide recessed seating surface provided in the rail support at the center in the width direction of the seating surface. By embedding rails or temporary shoulder block fastening side embedding plugs on the left and right of the spigot, and by fastening rails or temporary shoulder blocks to the center embedding plug and the left and right embedding plugs , Without converting each rail support
With the same rail support, it is possible to widen the distance between the gauges, and it is also possible to share the members such as embedding plugs, so that the construction can be simplified and the construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a state before widening of a rail fastening device for widening a rail according to the present invention.

FIG. 2 is a longitudinal sectional view showing a state of the device after widening.

FIG. 3 is a longitudinal sectional view showing an embodiment in which the device is applied to a four-wire track.

FIG. 4 is a plan view of FIG. 1;

FIG. 5 is a plan view of FIG. 2;

FIG. 6 is a plan view of FIG. 3;

FIG. 7 is a longitudinal sectional view of a conventional structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rail support 1 a concave seating surface 2 rail 3 embedding plug 3 ′ embedding plug 3 ″ embedding plug 4 rail fastening bolt 5 leaf spring 6 track pad 7 spring receiver 8 washer 9 temporary shoulder block

Claims (1)

(57) [Scope of request for utility model registration] 1. A rail support having a wide recessed seating surface capable of widening between rails having a predetermined inclination angle in a rail longitudinal direction in a rail stationary portion, and a width direction of the recessed seating surface of the rail support. A central embedded plug for rail fastening buried in the center and a rail embedded on the left and right of the embedded plug or a temporary side block for shoulder block fastening, and a rail screwed to each of the embedded plugs; A rail fastening device for widening a rail, comprising a temporary shoulder block fastening member.