JP2006328649A - Rail fixing structure for street car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rail fixing structure for a street car capable of securely fixing and supporting rails, excellent in vibration and noise properties, and enabling the easy repair operation. <P>SOLUTION: The rail fixing structure comprises rail fasteners 7 fixedly supporting, at predetermined intervals, the rail bottom face 1a of a rail 1 laid down on a rail foundation bed 3 and a resin material 5 filled between the rail foundation bed 3 and the bottom face 1a of the rail and pressing the bottom face 1a of the rail continuously along the longitudinal direction. The bottom face is fixedly supported by the rail fixing fasteners and the resin material. Both sides of the rail body part 1b of the rail 1 are fixedly supported with a highly sealable asphalt material 9. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a rail fixing structure for a tram suitable for areas such as intersections and crosswalks.

In general, an outline of a rail fixing structure for a tramway is, for example, that a rail is placed in a trough of a fixed track made of concrete, and both sides of the rail are pressed by a space filler positioned by a wedge, while the rest The space is filled with injection mortar and fixedly supported.
Special table 2004-538401 gazette

  Looking at the rail fixing structure seen in the known example, in addition to the fact that it is a means to place the rail in the trough of a fixed track made of special concrete different from general roadbed conditions, there is also a wedge outside it It cannot be used for a type in which the rail is laid on a normal rail base having a flat upper surface, such as using a space filler that is positioned by using the.

  In addition, the use of a wedge for positioning the space filler is cumbersome and is not desirable in terms of workability. Further, since the rail is fixedly supported while being embedded in the trough, it is very troublesome to expose the rail in repair work.

  Accordingly, an object of the present invention is to provide a rail fixing structure for a tram that is excellent in terms of reliable fixing support, vibration, and noise, and can easily expose the rail during repair work. It is said.

  In order to achieve the above object, in the present invention, a resin material filled between the rail base and the rail bottom surface of the rail and continuously pressing the rail bottom surface along the longitudinal direction, and the rail bottom surface are provided. The rail bottom surface is fixedly supported on the rail base by rail fasteners that are attached at predetermined intervals along the longitudinal direction, and the both sides of the rail abdomen of the rail are fixed and supported with a highly water-tight asphalt material. And

  According to the rail fixing structure of the present invention, the rail bottom surface of the rail is securely fixed on the rail base by the rail fastener that attaches the rail bottom surface at a predetermined interval and the resin-based material that continuously presses the rail bottom surface along the longitudinal direction. Can be supported. Further, the resin material functions as a vibration absorbing means that absorbs vibrations from above, and vibration and noise during traveling can be suppressed to a low level.

  In addition, since both sides of the rail abdomen can be fixed and supported by an asphalt material having high water tightness, the entire rail can be fixed and supported firmly. And since the waterproof effect which prevents permeation | transmission of rain water etc. is acquired, a rail, a rail fastener, etc. can be protected from corrosion etc., and durability can be aimed at now.

  On the other hand, in order to perform the repair work, the entire rail is exposed by removing the asphalt material, so that the work can be performed quickly.

  In the present invention, a predetermined fluidity is ensured so as to improve the pouring at the time of filling with a combination of a synthetic resin material and at least an aggregate of a resin material, while an asphalt material is a combination of at least asphalt, aggregate and stone powder. To ensure reliable water tightness and cure.

  Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS. 1 to 3.

  FIG. 1 is a schematic cross-sectional view of a portion of the rail fixing structure according to the present invention that is out of the rail fastener region, and FIG. 2 is a schematic cross-sectional view of the rail fastener portion.

  The rail 1 includes a rail bottom surface 1a, a rail abdomen 1b, and a rail head portion 1c, and a resin material 5 is provided between the rail bottom surface 1a of the rail 1 and the rail base 3 at a straight portion of an intersection or a pedestrian crossing region. Filled. The rail bottom surface 1a is fixed and supported at a predetermined interval along the longitudinal direction by a rail fastener 7, while both sides of the rail abdomen 1b are hardened with an asphalt material 9.

  As shown in FIG. 2, the rail fastener 7 includes a fastening bolt 11 screwed to the rail base 3 and a rail pressing plate 13 that presses and fixes the rail bottom surface 1 a from above when the fastening bolt 11 is screwed. Has been.

  On the other hand, the resin material 5 is a combination of methacrylic resin and an aggregate, and has a construction width that is extended by a predetermined length from both sides of the rail bottom surface 1a. The aggregate to be combined with the resin-based material 5 is adapted to ensure the optimum fluidity at the time of filling by adjusting the blending ratio of the aggregate. Moreover, after hardening, it has flexibility and the property to hold down the surroundings, and it is desirable to adjust the hardening time with a hardening accelerator according to the construction conditions since it changes corresponding to the outside air temperature.

  The asphalt material 9 is composed of a combination of at least asphalt, aggregate, and stone powder, and has a high watertight property that prevents rainwater and the like from permeating downward.

  The construction width of the asphalt material 9 is substantially the same as the construction width of the resin material 5. As shown in FIG. 1, the height of the construction is such that the head side surface of one rail head portion 1c is exposed and the other is the position where the head side surface of the rail head portion 1c is hidden. In this case, since the surface constructed with the asphalt material 9 is slippery, it is desirable to construct the surface so as to cover the surface with a non-slip material.

  In the above embodiment, the straight portion of the intersection and the pedestrian crossing area has been described. However, in the intersection of the curved portion and the pedestrian crossing area as shown in FIG. The rails 1-1 are arranged in parallel, and the main rail 1 and the sub rail 1-1 are integrally fastened by the bolts 17 via the connection bracket 15. In this case, the asphalt material 9 and the resin material 5 which are other components are the same as those in FIG.

  According to the rail fixing structure configured as described above, the rail bottom surface 1a of the rail 1 is securely placed on the rail base 3 by the rail fastener 7 and the resin material 5 that can be continuously pressed along the longitudinal direction. Can be fixedly supported. Further, the resin material 5 functions as a vibration absorbing means that absorbs vibrations from above, and suppresses vibration and noise during traveling.

  In addition, since both sides of the rail abdomen 1b are fixedly supported by the asphalt material 9 having high watertightness, the fixed support of the entire rail becomes strong. Moreover, the waterproof effect that prevents the permeation of rainwater and the like protects the rail 1 and the rail fastener 7 from corrosion, which is very preferable in terms of durability.

  On the other hand, when repair work is performed, the entire rail 1 is exposed by removing the asphalt material 9 so that the work can be performed quickly.

  The present invention can be used not only as a new construction but also as an existing rail fixing structure for repair.

  For example, when unevenness or rattling occurs on an existing pedestrian crossing with rails laid, the asphalt covering the rails in that area is removed to expose the entire rails, and the rail fasteners are loosened After lifting the rail and leveling it, the resin material 5 may be filled between the rail bottom and the rail base. In this case, the resin-based material 5 can obtain a function as a filler and a function of continuously pressing the rail bottom along the longitudinal direction. Further, both sides of the rail abdomen may be hardened with asphalt material 9, so that repair work can be quickly performed without removing the rail, and a reliable rail fixing state can be obtained.

The outline sectional view of the portion which deviated from the rail fastener field of the rail fixing structure concerning the present invention. The outline sectional view of a rail fastening part. FIG. 2 is a schematic cross-sectional view similar to FIG. 1 showing a state implemented in a curved region.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rail 1a Rail bottom 1b Rail abdomen 1c Rail head 3 Rail base 5 Resin material 7 Rail fastener 9 Asphalt material

Claims (2)

  A resin material filled between the rail base and the rail bottom surface of the rail and continuously pressing the rail bottom surface along the longitudinal direction; and a rail fastener for attaching the rail bottom surface at a predetermined interval along the longitudinal direction. A rail fixing structure for a tram, wherein the rail bottom surface is fixedly supported on the rail base, and both sides of the rail abdomen are fixed and supported with asphalt material having high water tightness.   The tram for a tramway according to claim 1, wherein the resin material is composed of a combination of a synthetic resin material and at least an aggregate, while the asphalt material is composed of a combination of at least asphalt, aggregate and stone powder. Rail fixing structure.

Images