JPS6134521B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a blunt end structure in which the divided rail sections of the basic track and the rail sections of the branch track are movable relative to each other in the horizontal direction, and are locked at each connecting position. Concerning points.

Continuously welded track (long rail)
The closed force transmission path generated in the
It is interrupted at a blunt end point in the area of the transition point from the transversely movable rail section to the rail end of the basic track and branch track. This results in a relative movement in the rail longitudinal direction between the two rail ends at this separation point. That is, depending on the temperature, a more or less large gap is created between the ends of the rails. In order to avoid wheel impacts in the seam clearance, it is necessary to make this seam clearance as small as possible and to keep it constant.
It has already been proposed to solve this problem by means of expansion joints or by means of hinge structures. However, these solutions have the disadvantage of being extremely expensive in terms of manufacturing costs and subject to wear and tear in terms of maintenance.

It is therefore an object of the invention to provide a simple structure between the transversely movable rail section and the immovable rails of the basic track and the branch track, which requires minimal construction and requires as little maintenance as possible, and which The object of the present invention is to provide a vertical connection type having no gaps.

In order to solve this problem, in the configuration of the present invention,
Two connecting rails are arranged on the inside and outside of the track, respectively, at a distance from the transversely movable rail section of the basic track and the immovably arranged rail ends of the basic track and the branch track. and these connecting rails have only one rail end which is immovable via a spacer in the area between the seam clearances and a rail section which is also laterally movable via the spacer in the area of the beginning of the blunt point switch. and are connected to each other so as to transmit force.

Hereinafter, in this specification, this type of coupling that transmits force will be simply referred to as a "power transmission connection."

A connecting rail arranged in this way transmits longitudinal forces caused by temperature parallel to the seam gap between the rail ends of the basic track and the rail ends of the branch track, so that this As a result, no relative movement occurs anymore in the area between the seam gaps.

The shape and length of the connecting rail, the type of fixation by power-transmitting connection between one end of the connecting rail and the laterally movable rail, and the power-transmitting connection between the other end of the connecting rail and the immovable ends of the basic track and the branch track. The type of fastening is determined, on the one hand, depending on the local conditions and the forces likely to occur, and on the other hand, depending on the type and shape of the rail to be unloaded.

It is also advantageous to use a tongue profile as the connecting rail. This tongue profile rail has a lower height than a conventionally shaped rail, so that the rail foot of the running rail can move unimpeded. Also in this case, the tongue profile rail can be manufactured from a given rolled steel already used for the production of tongue rails in point assembly, and therefore a special special shape of the section steel can be produced. There is no need to manufacture it.

An important point in the present invention is that the connecting rail is not fixed over a defined length between its fixing points by means of its power-transmitting connections, so that it can be spring-elastic in the horizontal direction without being obstructed. This means that you can exercise. This embodiment allows the connecting rail to follow the lateral movement of the running rail in the branching area.

The length of the connecting rail must be such that it can elastically withstand the curvature of the connecting rail caused by the lateral movement of the running rail in the branching region. This means that the connecting rail should not be fixed by means of a power-transmitting connection in places where the connecting rail cannot withstand the forces caused by the bending and there is a risk of it breaking or being plastically deformed.
Further, the length of the connecting rail is determined by the shape and material of the section steel.

The power transmission connection between the connecting rail and the laterally movable rail section and the rail end comprises a spacer arranged between the connecting rail and the laterally movable rail section and the rail end and aligned with the rail web. Advantageously, this is done by means of a strong screw guided through the hole. In this case, the force transmission path leads from the loaded running rail to the connecting rail via the spacer.

Due to the inventive design, the area of seam clearance is freed from tension and push forces that occur due to changes in the length of the track due to temperature. The connecting rails are easy to install, require no additional care and do not wear out.

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows the branching range of the blunt point switch at point A-B. This branch area corresponds to the rails 1 and 2 which are supported for lateral movement on the basic track.
, stationary rail ends 3, 5 of the basic track and stationary rail ends 4, 6 of the branch track. Seam gaps 7, 8, 9, 10 are located at location C. The rails 1, 2, which are supported so as to be movable laterally, coaxially face the stationary rail ends 3, 5 in the seam gaps 7, 8. When the blunt point switch is switched, the transversely movable rails 1, 2 are brought into a coaxial corresponding position with respect to the stationary rail ends 4, 6 of the branch track in the joint gaps 9, 10. The switching of the blunt point switch is effected by a pneumatically, hydraulically or electrically driven device (not shown for clarity of drawing).

Seam gaps 7, 8, 9, 10 (here, location c)
In order to avoid a relative movement in the longitudinal direction of the rails 1, 2 at , 14.

The connecting rails 11, 12, 13, 14 are screwed with strong screws at the points behind the joint gaps 7, 8, 9, 10, that is, between c and d and at the beginning of the blunt end point between points a and b. 18 and 24. The connecting rails 11, 12, 13, 14 are connected to the rail 1 by the spacers 16, 17, 25, 26.
2 is kept at a distance. The connecting rails 11, 12, 13, 14 are not fixed in a predetermined range (between points b and c in the drawing). In this case, the force transmission path starts from the starting end of the point, and the rail 1 is supported so that it can move laterally.
a connecting rail 1 which is separated from and connected between points a and b via a strong threaded connection with a force-transmitting connection in a fixed area between the points a and b;
1, 12 and furthermore, via a fixed part of a similar power-transmitting connection between points c and d, to the permanently arranged rail ends 3, 4 of the basic track and branch track. As a result, the seam gaps 7, 8, 9, 10 at location c are freed from tension and pushing forces due to temperature-induced length changes. The connecting rails 11, 12, 13, 14 are made from rail sections with the same cross-sectional shape as the rail ends 3, 4, 5, 6 of the basic track and the branch track. In other words, the connection rails 11, 12, 13, 14
has the shape of a tongue profile rail. Unfixed range (here points b and c
connection rails 11, 12, 13,
14 is elastically movable in the horizontal direction;
This makes it possible to follow the lateral movement of the rails 1, 2 which are switched when the blunt end point switch is switched.

FIG. 2 shows a strong screw connection between the transversely movable rail 1 and the connecting rails 11, 12 at the start of the point. As the connecting rails 11, 12, tongue profile rails having a lower height than the rail 1 are used. Therefore, the connecting rails 11, 12 are not in contact with the sleeper 15 of the rail 1. Spacers 16, 17 are arranged between the rail 1 and the connecting rails 11, 12, which fit the webs of the rail 1 as well as the webs of the connecting rails 11, 12. Since the connecting rail 11 is kept at an appropriate distance from the rail 1 by the spacer 16, the wheel flange will not accidentally ride on it. Also, spacer 17
The connecting rail 12 is thus spaced apart from the rail 1, so that the wheel flange can rotate unhindered. connection rail 11,
12 and the rail 1 have holes 19 provided in the webs of the connecting rails 11 and 12 and the web of the rail 1.
Strong screw 1 guided through 20, 21
8, a washer 22, and a strong nut 23 for force transmission.

FIG. 3 shows a common type of connection between the connecting rails 11, 12 and the rails 3 and 4 by means of strong screws 24.

The connecting rails 11, 12 are kept at a distance from the rails 3, 4 by spacers 25, 26.
The distance required between the rail ends 3, 4 at this point due to the geometry of the point is created by a further spacer 27. The rail ends 3, 4 and the connecting rails 11, 1 are connected by fixed screws 24, washers 32 and strong nuts 33 extending through the holes 28, 29, 30, 31.
2 and 2 are connected together so that force can be transmitted between them.

[Brief explanation of the drawing]

Figure 1 is a top plan view of the blunt end point, Figure 2 is a cross-sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view taken along the - line in Figure 1.
The figure is a cross-sectional view taken along the - line in FIG. 1. 1, 2...Rail as a traveling rail, 3-6
...Rail end, 7-10... Seam play, 11-
14... Connection rail, 15... Sleeper, 16,
17, 25-27... Spacer, 18, 24...
Screw, 19-21, 28-31... Hole, 22, 3
2...Washer, 23, 33...Natsuto.

Claims (1)

[Scope of Claims] 1. A blunt-end point switch in which the rail section of the divided basic track and the rail section of the branch track can move relative to each other in the horizontal direction, and are locked at each connection position. at a distance from the transversely movable rail sections 1, 2 of the basic track and the immovably arranged rail ends 3, 5; 4, 6 of the basic track and branch track, respectively. 2 connection rails 1 inside and 2 outside
1, 12, 13, 14 are arranged, and these connecting rails 11, 12, 13, 14 are only connected to spacers 25, 26, 27 in the range between the seam gaps.
via spacers 16, 17, respectively, with immovable rail ends 3, 5; 4, 6 and transversely movable rail sections 1, 2 in the starting end region of the blunt point switch, respectively. A blunt end point device characterized in that the blunt end point is coupled to transmit force. 2. The blunt end switch according to claim 1, wherein the connecting rails 11, 12, 13, 14 are configured in a tongue profile shape.