JP2017206955A - Rail temporary placing base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve its easiness-to-use in a rail temporary placing base using cylindrical rollers.SOLUTION: A first roller part 5 and a second roller part 7 are provided on a common base part 3. Normally, in rail replacement work, replacement of left-right rails R is simultaneously performed. Therefore, normally, new rails R as one set of two rails are temporarily placed in the vicinity of existing rails R. Further, in the present invention, since the two rails R can be temporarily placed by one rail R temporary placing base 1, its easiness-to-use can be improved in the rail R temporary placing base using cylindrical rollers.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a temporary placement table for temporarily placing rails (tracks) for tracks.

  For example, in the rail temporary placement table described in Patent Document 1, by providing a cylindrical roller, the temporarily placed rail can be easily thermally expanded and contracted in the longitudinal direction.

JP 2003-55902 A

  SUMMARY OF THE INVENTION An object of the present invention is to improve the usability of a temporary rail stand using a cylindrical roller.

  In order to achieve the above object, the present invention is a rail temporary placing table for temporarily placing a rail, and is provided on a base portion (3) and a base portion (3), and is formed in a cylindrical shape. A rotatable first roller portion (5), and a rotatable second roller portion (7) provided on the same side of the base portion (3) as the first roller portion (5) and formed in a cylindrical shape. It is characterized by providing.

  By the way, in the rail exchange work, the left and right rails are usually exchanged at the same time. For this reason, new rails are usually temporarily placed in the vicinity of existing rails as a set of two. And conventionally, two rail temporary placing stands were installed in the vicinity of the existing rail, and two rails were temporarily placed.

  On the other hand, in this invention, the 1st roller part (5) and the 2nd roller part (7) are provided in the common base part (3). That is, in the present invention, two rails can be temporarily placed on one rail temporary stand, so that the usability can be improved in the rail temporary stand using a cylindrical roller.

  Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

It is a front view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. It is a top view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. It is a front view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. It is a bottom view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. It is a rear view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. (A) It is a front view of the support part 21 for the roadbed which concerns on 1st Embodiment of this invention. (B) is a top view of the roadbed support portion 21 according to the first embodiment of the present invention. It is an upper surface side perspective view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. It is a top view of rail temporary placing stand 1 concerning a 1st embodiment of the present invention. (A) And (b) is a figure which shows the usage example of the rail temporary placing stand 1 which concerns on 1st Embodiment of this invention. It is a bottom view of rail temporary placing stand 1 concerning a 2nd embodiment of the present invention.

  The “embodiment of the invention” described below shows an example of the embodiment. In other words, the invention specific items described in the claims are not limited to the specific means and structures shown in the following embodiments.

  In the present embodiment, the present invention is applied to a rail temporary placing table for temporarily placing a rail for a conventional line. In addition, the arrow etc. which show the direction attached | subjected to each figure were described in order to make it easy to understand the relationship between each figure, and this invention is not limited to the direction attached | subjected to each figure. Absent.

  At least one member or part described with at least a reference numeral is provided, except where “plurality”, “two or more”, and the like are omitted. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1. Configuration of Temporary Rail Mounting Table FIG. 1 shows a state where a rail R is placed on a temporary rail mounting table 1 according to this embodiment. As shown in FIG. 2, the temporary rail mounting table 1 includes at least a base portion 3, a first roller portion 5, and a second roller portion 7.

  The base portion 3 is a plate-like member made of a metal such as a structural rolled steel material. The 1st roller part 5 and the 2nd roller part 7 are cylindrical members comprised with metals, such as structural carbon steel, Comprising: It can rotate centering on the axis line extended in the longitudinal direction.

  As shown in FIG. 3, the first roller portion 5 and the second roller portion 7 are both disposed on the upper surface side of the base portion 3. The first axial direction L1 of the first roller unit 5 and the second axial direction L2 of the second roller unit 7 coincide with the horizontal direction. In the present embodiment, the first axis direction L1 and the second axis direction L2 are located on the same axis as shown in FIG.

  The first roller portion 5 and the second roller portion 7 are supported by a common support shaft 9. The support shaft 9 extends in the horizontal direction through the first roller portion 5 and the second roller portion 7 in the axial direction. At both shaft ends of the first roller portion 5, a first bearing 9 </ b> C that allows the first roller portion 5 to rotate with respect to the support shaft 9 is provided.

  Similarly, a second bearing 9 </ b> D that allows the second roller portion 7 to rotate with respect to the support shaft 9 is provided at both shaft ends of the second roller portion 7. The first bearing 9C and the second bearing 9D are rolling bearings having rolling elements.

  As shown in FIG. 3, the support shaft 9 is held by the base portion 3 at both ends in the longitudinal direction and at a portion between the first roller portion 5 and the second roller portion 7. That is, the first holding portion 11 is provided at a portion of the base portion 3 corresponding to both longitudinal ends of the support shaft 9. A second holding portion 13 is provided in a portion of the base portion 3 that corresponds between the first roller portion 5 and the second roller portion 7.

  As shown in FIG. 2, each first holding portion 11 is a member obtained by bending a metal plate such as a structural rolled steel material into a U shape or a substantially C shape. Each first holding part 11 is provided with a through hole 11A through which the support shaft 9 passes.

  Male screw portions 9A are provided on both ends of the support shaft 9 in the longitudinal direction. A nut 9B is fastened to each male screw portion 9A in a state where each male screw portion 9A passes through each through hole 11A. As a result, both end sides in the longitudinal direction of the support shaft 9 are fixed while being held by the first holding portions 11.

  The second holding part 13 is provided with a through hole (not shown) through which the support shaft 9 passes. And a pair of 1st holding | maintenance part 11 and the 2nd holding | maintenance part 13 are being fixed to the base part 3 by welding. As shown in FIG. 4, the pair of first holding portion 11 and second holding portion 13 is provided with a protruding portion 3 </ b> A that protrudes toward the base portion 3 side.

  The base portion 3 is provided with a fitting hole 3B into which the protruding portion 19A is fitted. Each protrusion 3 </ b> A is fitted in each fitting hole 3 </ b> B, whereby the pair of first holding parts 11 and second holding parts 13 are positioned with respect to the base part 3.

  And in the rail temporary placing stand 1 which concerns on this embodiment, a pair of 1st holding | maintenance part 11 and 2nd holding | maintenance part 13 are base parts in the state which each projection part 3A was fitted and positioned in each fitting hole 3B. 3 is welded.

  In FIG. 4, the protrusion 3 </ b> A and the fitting hole 3 </ b> B are drawn so that there is a gap, but in actuality, the fitting between the protrusion 3 </ b> A and the fitting hole 3 </ b> B is performed with respect to the fitting hole 3 </ b> B. Thus, the tolerance is set such that the protrusion 3A is not largely rattled.

  As shown in FIG. 3, the first upper end position 5A that comes into contact with the temporarily placed rail R in the first roller portion 5 and the first upper end position 5A that comes into contact with the temporarily placed rail R out of the outer peripheral surface of the second roller portion 7. The 2 upper end position 7A has the same height.

  That is, in this embodiment, the outer diameter dimension D1 of the first roller part 5 and the outer diameter dimension D2 of the second roller part 7 are the same dimension, and the height dimension from the base part 3 to the first axial direction L1. The height dimension H2 and the height dimension H2 from the base portion 3 to the second axial direction L2 are the same dimension.

  There is no portion projecting above the first upper end position 5A and the second upper end position 7A between the first roller unit 5 and the second roller unit 7 in the rail temporary placement table 1. Therefore, the dimension H3 from the upper end of the second holding part 13 to the base part 3 is the same as or less than the dimension from the base part 3 to the first upper end position 5A.

  And the site | part which protruded from the outer peripheral surface of 1st roller parts 5, such as a flange part, is not provided in the 2nd roller part 7 side among the axial ends of the 1st roller part 5. As shown in FIG. Similarly, a portion of the shaft end of the second roller portion 7 that protrudes from the outer peripheral surface of the second roller portion 7 such as a flange portion is not provided on the first roller portion 5 side. That is, the 1st roller part 5 and the 2nd roller part 7 which concern on this embodiment are simple cylindrical shapes.

  Of the shaft end of the first roller unit 5, on the side opposite to the second roller unit 7, that is, on the first holding unit 11 side of the shaft end of the first roller unit 5, outside the outer peripheral surface of the first roller unit 5. A protruding first flange portion 15A is provided.

  Of the shaft end of the second roller portion 7, the side opposite to the first roller portion 5, that is, on the first holding portion 11 side of the shaft end of the second roller portion 7, outside the outer peripheral surface of the second roller portion 7. A protruding second flange portion 15B is provided.

  The first flange portion 15A and the second flange portion 15B are disk-shaped members. The first flange portion 15 </ b> A is integrated with the shaft end of the first roller portion 5 and rotates integrally with the first roller portion 5. The second flange portion 15 </ b> B is integrated with the shaft end of the second roller portion 7 and rotates integrally with the second roller portion 7. The first flange portion 15A and the second flange portion 15B are integrated with each roller portion by welding.

  A first inclined surface 15 </ b> C that is inclined with respect to the radial direction of the first roller portion 5 is provided on the first roller portion 5 side of the first flange portion 15 </ b> A. A second inclined surface 15D inclined with respect to the radial direction of the second roller portion 7 is provided on the second roller portion 7 side of the second flange portion 15B.

  The distance W between the first inclined surface 15C and the second inclined surface 15D increases as it goes outward in the radial direction. That is, the first inclined surface 15 </ b> C and the second inclined surface 15 </ b> D are inclined with respect to the radial direction so as to approach the first holding portion 11 that goes radially outward.

  As shown in FIG. 1, a first restriction member 17 and a pair of second restriction members 19 can be detachably attached to the temporary rail mounting table 1. That is, the crank pipe 20 is welded to the base portion 3. The first restricting member 17 and the second restricting member 19 are detachable from the crank pipe 20.

  The structure for making the first restricting member 17 and the second restricting member 19 detachable and the structure of the crank pipe 20 corresponding thereto are described in, for example, the restricting member and the crank pipe described in JP2010-101132A. It is the same as the structure. The dimension H4 from the base part 3 to the upper end of the crank pipe 20 is smaller than the dimension from the base part 3 to the first upper end position 5A.

  As shown in FIG. 2, the crank pipe 20 </ b> A attached to the first restricting member 17 is provided at a portion that is shifted in the horizontal direction from the portion between the first roller portion 5 and the second roller portion 7. As shown in FIG. 5, the first restricting member 17 includes a stopper portion 17A and a pair of overturn suppressing portions 17B.

  The stopper portion 17A is a metal member formed in a cylindrical shape or a columnar shape, and when the rail temporarily placed on the first roller portion 5 or the second roller portion 7 comes into contact, the rail is horizontal. Restrict movement in the direction.

  The axial direction of the stopper portion 17A attached to the crank pipe 20A coincides with the vertical direction. The stopper portion 17A extends from the base portion 3 in the vertical direction. And the outer peripheral surface 17C which is a site | part which a rail contacts among 17 A of stopper parts is a cylindrical curved surface which protruded and curved to the said rail side.

  A pair of fall suppression part 17B is a site | part which suppresses that the temporarily placed rail falls down. These overturn suppressing portions 17B are portions extending on the side surface side of the rail R so as to be along the rail bottom portion. Each fall prevention part 17B is provided with a through hole for reducing the weight of the fall prevention part 17B.

  The pair of overturn suppressing portions 17B is integrated with one end side in the axial direction of the stopper portion 17A. In the present embodiment, the stopper portion 17A and the pair of fall suppressing portions 17B are made of metal such as structural carbon steel. A pair of fall suppression part 17B is integrally formed from one steel plate. And the stopper part 17A and a pair of fall suppression part 17B are integrated by welding.

  As shown in FIG. 1, the pair of second restricting members 19 is attached to each of the pair of crank pipes 20 </ b> B provided in the vicinity of the first holding portion 11. The second restricting member 19 is not provided with a portion corresponding to the stopper portion 17A, and is provided with only the fall suppressing portion 19B having the same function as the fall suppressing portion 17B.

2. Roadbed Support Section 2.1 Structure of Roadbed Support Section, etc. The roadbed support section 21 shown in FIG. 6A is an accessory for installing the temporary rail stand 1 on the roadbed laid with gravel or crushed stone. Therefore, it is detachable with respect to the base portion 3. The roadbed support portion 21 includes a plate portion 21A and a plurality of pile portions 21B.

  The plate portion 21A is in contact with the base portion 3 at the time of mounting, and as shown in FIG. 6B, the outer edge shape is a polygonal shape having a plurality of corner portions (four in this embodiment). The outer edge shape of the base portion 3 is substantially similar to the plate portion 21A.

  In this embodiment, when the roadbed support portion 21 is mounted on the temporary rail mounting base 1 so that the base portion 3 and the plate portion 21A are in contact with each other, as shown in FIG. When the table 1 is viewed, the outer edge of the base portion 3 and the outer edge of the plate portion 21A substantially coincide.

  As shown in FIG. 6A, the plurality of pile portions 21B protrude downward from the plate portion 21A. Of the plurality of pile portions 21B, the pile portions 21B provided at the four corners of the plate portion 21A have protruding portions 21C protruding upward from the plate portion 21A.

  In addition, the protrusion part 21C which concerns on this embodiment is integral with the corresponding pile part 21B. That is, the protruding part 21C and the pile part 21B are one continuous bar-like member. The rod-like member is welded to the plate portion 21A while penetrating the plate portion 21A.

  And the part which protruded upwards from the plate part 21A among the said rod-shaped members becomes the protrusion part 21C. Of the rod-shaped member, a portion protruding downward from the plate portion 21A is a pile portion 21B.

  As shown in FIG. 2, a fitting portion 3 </ b> C into which the protruding portion 21 </ b> C can be fitted is provided in a portion of the base portion 3 corresponding to the protruding portion 21 </ b> C. 3 C of these fitting parts have at least 2 surface 3D and 3E which mutually cross | intersect. In addition, 3 C of fitting parts which concern on this embodiment form the two surfaces 3D and 3E which mutually cross | intersect by notching the four corners of the base part 3. FIG.

2.2 Mounting of Roadbed Support Section As shown in FIGS. 7 and 8, the base section 3 is arranged on the plate section 21 </ b> A so that each projection section 21 </ b> C is fitted into each fitting section 3 </ b> C. Thereby, while the base part 3 and the plate part 21A contact, the two surfaces 3D and 3E which the fitting part 3C mutually cross | intersect, and the protrusion part 21C are hooked and engaged. For this reason, the base part 3 is restricted from largely moving in the horizontal direction with respect to the plate part 21A.

3. Features of Temporary Rail Mounting Table According to the Present Embodiment Rail replacement work normally involves the left and right rails being replaced simultaneously. For this reason, the new rail R is usually temporarily placed in the vicinity of the existing rail as a set of two. And as this embodiment, since the two rails R can be temporarily placed by one rail temporary placement stand 1, the usability can be improved in the rail temporary placement stand using cylindrical rollers.

  In the present embodiment, the axial direction L1 of the first roller unit 5 and the axial direction L2 of the second roller unit 7 coincide with the horizontal direction, and the first upper end position 5A and the second upper end position 7A have the same height. Further, the first roller portion 5 and the second roller portion 7 are characterized in that there is no portion protruding above the first upper end position 5A and the second upper end position 7A.

  Thereby, in this embodiment, when moving the rail R in the direction (henceforth a horizontal direction) orthogonal to the longitudinal direction using a bar etc., the structure which does not interfere with the movement of the rail R exists. Become.

  Therefore, in this embodiment, as shown in FIGS. 9A and 9B, the rail R can be easily moved in the lateral direction, so that the workability of the rail replacement work can be improved. .

  In the present embodiment, the first roller portion 5 and the second roller portion 7 are arranged on the same axis line and are arranged side by side, and the second of the shaft ends of the first roller portion 5 and the second roller portion 7. It is characterized in that a portion protruding from the outer peripheral surface of each roller portion is not provided on the holding portion 13 side.

  As a result, when the rail R is moved in the lateral direction, there is no configuration that obstructs the movement, so that the rail R can be moved more easily in the lateral direction and the workability of the rail replacement work can be improved. Can be improved.

  In the present embodiment, the first flange portion 15 </ b> A is provided on the opposite side of the shaft end of the first roller portion 5 from the second roller portion 7, and the first roller portion 5 is opposite to the first roller portion 5 of the shaft end of the second roller portion 7. The second flange portion 15B is provided on the side.

In the present embodiment, the first roller portion 5 and the first flange portion 15A rotate integrally. Similarly, the 2nd roller part 7 and the 2nd flange part 15B rotate integrally.
For this reason, even if the rail R moves laterally and the rail R comes into contact with the first flange portion 15A or the second flange portion 15B, the flange portion rotates together with the roller portion. Rubbing with the flange portion can be suppressed. Therefore, since the rail R can be easily moved, the workability of the rail replacement work can be improved.

  In the present embodiment, a first inclined surface 15C is provided on the first roller portion 5 side in the first flange portion 15A, and a second inclined surface 15D is provided on the second roller portion 7 side in the second flange portion 15B. In addition, the distance W between the first inclined surface 15C and the second inclined surface 15D increases as it goes outward in the radial direction.

  Thereby, in this embodiment, when the rail R is moved upward with respect to any of the roller portions, the rail R is moved even when the rail R and any of the flange portions are in contact with each other. The rail R can be moved smoothly without significant hindrance.

  In the present embodiment, a stopper portion 17A is provided in a portion that is horizontally displaced from a portion between the first roller portion 5 and the second roller portion 7, and a portion of the stopper portion 17A that the rail R contacts is It is characterized by a curved surface that protrudes toward the rail R and is curved.

  Thereby, in this embodiment, even if it is a case where the stopper part 17A and the rail R contact, it can suppress that the contact area becomes large too much, the stopper part 17A bites into the rail R, etc.

  Therefore, it can suppress that the resistance force which generate | occur | produces in the contact part of the stopper part 17A and the rail R becomes large too much. As a result, since the rail R can be easily moved, the workability of the rail replacement work can be improved.

  In this embodiment, the stopper portion 17A is detachable from the base portion 3. Thereby, when the rail R is temporarily placed on the rail R temporary stand 1, it can be suppressed that the stopper portion 17 </ b> A becomes an obstacle. Therefore, the workability of the rail replacement work can be improved.

  In the present embodiment, the base part 3 has a positioning fitting hole into which the protruding part 3A provided on the member welded to the base part 3 (for example, the first holding part 11 and the second holding part 13) is fitted. 3B is provided.

  Thereby, in this embodiment, when welding the 1st holding | maintenance part 11 grade | etc., To the base part 3, the jig | tool etc. which prevent that the 1st holding | maintenance part 11 grade | etc., Move with respect to the base part 3 are not used. It becomes possible to perform welding work. Therefore, the man-hour at the time of welding work can be reduced, and the joining position accuracy of the first holding part 11 and the like can be improved.

  The present embodiment is characterized in that a fitting portion 3C having two surfaces 3D and 3E intersecting each other is provided in a portion of the base portion 3 corresponding to the protruding portion 21C of the roadbed support portion 21. .

  Thereby, in this embodiment, the base part 3 will move with respect to the support part 21 for roadbeds when the two surfaces 3D and 3E which the fitting part 3C mutually cross | intersect, and the protrusion part 21C contact. This can be suppressed.

  In the present embodiment, since the protruding portion 21C is in a bar shape integral with the corresponding pile portion 21B, the pile portion 21B can be driven into the road bed effectively by striking the head of the protruding portion 21C with a hammer or the like. .

(Second Embodiment)
In the present embodiment, as shown in FIG. 10, a through hole 3 </ b> F penetrating the base portion 3 is provided in a portion of the base portion 3 corresponding to the first flange portion 15 </ b> A and the second flange portion 15 </ b> B. .

  Thereby, in this embodiment, the some rail temporary placing stand 1 can be arranged in the state piled up and down. Therefore, it is possible to easily store the plurality of rail temporary placement stands 1 and to accommodate a large number of rail temporary placement stands 1 in a relatively small space.

  As is apparent from the above effect, the first flange portion 15A and the second flange portion 15B are recessed from the opposite side to the first flange portion 15A and the second flange portion 15B, instead of the through hole 3F. It is good also as a recessed part.

  Incidentally, when the through hole 3F or the concave portion is not provided, the first flange portion 15A and the second flange portion 15B of the rail temporary placement table 1 arranged on the lower side, and the rail temporary placement arranged on the upper side. The base part 3 of the base 1 interferes. For this reason, the plurality of rail temporary placement tables 1 cannot be arranged in a stacked state.

  By the way, in order to stack the plurality of temporary rail mounting tables 1 vertically, (a) a configuration in which the diameters of the first flange portion 15A and the second flange portion 15B are reduced, or (b) the height of the first holding portion 11. A configuration with a large size is conceivable.

  However, in the configuration of (a), there is a possibility that the rail R may not be sufficiently suppressed from laterally moving toward the first holding unit 11 at the first flange portion 15A or the second flange portion 15B. In the configuration of (b), the rail temporary table 1 is increased in size and weight. On the other hand, in this embodiment, a plurality of rail temporary placing stands 1 can be arranged in a stacked state while suppressing the occurrence of the above-described problems.

(Other embodiments)
In the above-described embodiment, the first flange portion 15A and the second flange portion 15B are integrated with each roller portion by welding, but the present invention is not limited to this.

  That is, for example, (a) the first flange portion 15A and the second flange portion 15B are abolished, (b) the first roller portion 5 and the first flange portion 15A are integrally formed, and the second roller portion 7 and the second flange portion 15B The two flange portions 15B may be integrally formed, or (c) the first flange portion 15A and the second flange portion 15B may be independent members with respect to the first roller portion 5 or the second roller portion 7.

  In the above (c), the first flange portion 15A and the second flange portion 15B can be rotated independently of the first roller portion 5 or the second roller portion 7, or the first flange portion 15A and It is good also as a structure etc. which provided the 2nd flange part 15B in the 1st holding | maintenance part 11. FIG.

  In the above-described embodiment, the axial direction L1 of the first roller unit 5 and the axial direction L2 of the second roller unit 7 coincide with the horizontal direction, and the axial direction L1 and the axial direction L2 are arranged on the same axis. However, the present invention is not limited to this.

  In the above-described embodiment, the stopper portion 17A and the overturn suppressing portion 17B are provided. However, the present invention is not limited to this, and for example, even if at least one of the stopper portion 17A and the overturn suppressing portion 17B is eliminated. Good.

Although the curved surface 17C of the stopper portion 17A according to the above-described embodiment is a circumferential surface, the present invention is not limited to this and may have other curved shapes.
In the above-described embodiment, the first inclined surface 15C and the second inclined surface 15D are provided. However, the present invention is not limited to this, and at least one of the first inclined surface 15C and the second inclined surface 15D is provided. It may be abolished.

  In the above-described embodiment, the roadbed support portion 21 is detachable from the base portion 3, but the present invention is not limited to this, and the roadbed support portion 21 and the base portion 3 are integrated. May be. At this time, the plate portion 21A may be abolished and the base portion 3 may serve as the plate portion 21A.

Although the protrusion part 21C which concerns on the above-mentioned embodiment was integral with the corresponding pile part 21B, this invention is not limited to this, The pile part 21B and the protrusion part 21C are good also as a different body.
The fitting portion 3C according to the above-described embodiment is formed by cutting out the corner portion of the base portion 3, but the present invention is not limited to this, and a through hole penetrating the base portion 3 is used. The fitting portion 3C may be configured by The shape of the fitting portion 3C may be other shapes such as a round shape and a triangular shape.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 ... Rail temporary stand 3 ... Base part 3A ... Projection part 3B ... Fitting hole 3C ... Fitting part 3F ... Through-hole 5 ... 1st roller part 5A ... 1st upper end position 7 ... 2nd roller part 7A ... 2nd Upper end position 9 ... Support shaft 9C ... First bearing 9D ... Second bearing 9A ... Male thread portion 9B ... Nut 11 ... First holding portion 11A ... Through hole 13 ... Second holding portion 15A ... First flange portion 15B ... Second flange Part 15C ... 1st inclined surface 15D ... 2nd inclined surface 17 ... 1st control member 17A ... Stopper part 17B ... Overturn suppression part 19 ... 2nd control member 19A ... Protrusion part 19B ... Overturn suppression part 20 ... Crank pipe 21 ... Roadbed Support part 21A ... Plate part 21B ... Pile part 21C ... Projection part

Claims (4)

A rail temporary table for temporarily placing a rail,
A base part;
A rotatable first roller portion provided in the base portion and formed in a cylindrical shape;
A rotatable second roller portion provided on the same side as the first roller portion with respect to the base portion and formed in a cylindrical shape;
A support shaft that supports the first roller portion and the second roller portion;
A pair of first holding portions that are provided in portions of the base portion corresponding to both ends in the longitudinal direction of the support shaft, and hold both ends in the longitudinal direction of the support shaft;
A second holding portion that is provided at a portion corresponding to the base portion between the first roller portion and the second roller portion, and holds the support shaft;
A first flange portion integrated on the opposite side of the shaft end of the first roller portion to the second roller portion, the first flange portion protruding outward from the outer peripheral surface of the first roller portion;
A second flange portion integrated on the opposite side to the first roller portion of the shaft end of the second roller portion, the second flange portion protruding outward from the outer peripheral surface of the second roller portion;
A restricting member that is detachably provided in a portion of the base portion that is horizontally displaced from a portion between the first roller portion and the second roller portion, and extends in a vertical direction from the base portion, And the provisionally provided rail comprises a stopper member that restricts horizontal movement of the rail, and a regulating member that has a tipping suppression portion that suppresses the tipping rail from falling over.
The axial direction of the first roller part and the axial direction of the second roller part coincide with the horizontal direction, and the first roller part and the second roller part are arranged side by side on the same axis line,
The first upper end position in contact with the temporarily placed rail in the first roller portion and the second upper end position in contact with the temporarily placed rail in the outer peripheral surface of the second roller portion have the same height. Yes,
Between the 1st roller part and the 2nd roller part, the part projected above the 1st upper end position and the 2nd upper end position is not provided,
Of the shaft end of the first roller part, the second roller part side is not provided with a portion protruding from the outer peripheral surface of the first roller part,
Of the shaft end of the second roller part, the first roller part side is not provided with a portion protruding from the outer peripheral surface of the second roller part,
Furthermore, the dimension from the upper end of the second holding part to the base part is the same as the dimension from the base part to the first upper end position, and the length of the first roller part in the second holding part. In the state where the dimension of the horizontal portion orthogonal to the direction is the same as the diameter dimension of the first roller part and the regulating member is removed, the dimension between the first roller part and the second roller part is A temporary rail stand that allows the rail to move. A first inclined surface inclined with respect to the radial direction is provided on the first roller portion side of the first flange portion,
A second inclined surface inclined with respect to the radial direction is provided on the second roller portion side of the second flange portion,
Furthermore, the distance between the first inclined surface and the second inclined surface is increased toward the outer side in the radial direction.   3. The temporary rail mounting table according to claim 1, wherein a curved surface that protrudes toward the rail is provided at a portion of the stopper portion where the rail contacts.   4. The positioning hole according to any one of claims 1 to 3, wherein the base portion is provided with a positioning fitting hole into which a protrusion provided on a member welded to the base portion is fitted. The rail temporary stand described.