JP2019093927A - Piping structure for side-sliding door of rolling stock - Google Patents

Abstract

To provide a piping structure for a side-sliding door of a rolling stock which enables piping construction by a simple installation without bypassing cap beams and is capable of shortening the piping distance.SOLUTION: In a rolling stock 20 where a floor plate 1 of double skin structure is coupled with a bogie 3 via a cap beam 2 to comprise a side-sliding door opening 41 in a vicinity of the cap beam, a pneumatic door closing machine 43 that opens and closes a side-sliding door 42 is installed above the side-sliding opening, and a pipe 5 that feeds compressed air to the pneumatic door closing machine is connected with the pneumatic closing machine from an air tank 51 installed underfloor via a switching valve 52 installed in the bottom 44 of a side body structure in a vicinity of the side-sliding door opening. The piping comprises a nearly S-shaped pipe 53 insertable through a gap 14 between the top plate 11 and the bottom plate 12 of the floor plate, projects the top end connection part 531 of the nealy S-shaped pipe upward from the top plate to be connected with the pipe 54 from the switching valve, and projects the bottom end connection part 532 of the nealy S-shaped pipe downward from the bottom plate to be connected with the pipe 55 from the air tank at a position separated from the cap beam.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a piping structure for a side sliding door of a rail car, and more particularly to a piping structure for a side sliding door connecting a pneumatic door closing machine for opening and closing a side sliding door of a rail car and an air tank installed under the floor.

  For example, Patent Document 1 discloses a side sliding door (door portion) structure of a railway vehicle. That is, as shown in FIG. 6, in the rail vehicle 100, the side sliding door opening 102 is formed in the side structure 101, and the side sliding doors 103 and 104 are connected to the pneumatic door closing machine 105 connected to the side sliding door. The structure which is opened and closed by sending compressed air is adopted. The pneumatic door closing machine 105 is installed above the side sliding door opening 102 of the side structure 101, and the rod 105a of the pneumatic door closing machine 105 connected to the side sliding doors 103 and 104 horizontally extends (rails) It is configured to

  Also, in general, the compressed air to be sent to the pneumatic door closing machine 105 is supplied by piping from an air tank (not shown) installed under the floor, and the side sliding door 103 by compressed air supplied to the pneumatic door closing machine 105, It has a structure in which the closed or open state of 104 is maintained. The piping connecting the air tank to the pneumatic door closing machine 105 is connected to a switching valve (not shown) installed at the lower part of the side structure near the sliding door opening 102. In an emergency or the like, when the switching valve is operated to discharge the compressed air in the pneumatic door closing machine 105 to the outside, the closed state or open state of the side sliding doors 103, 104 is not maintained and can be manually opened and closed. It will be.

JP 2012-51434 A

  However, the side sliding door structure of the above-mentioned railway vehicle has the following problems. That is, in recent years, in a vehicle provided with a floor plate having a double skin structure, a frame structure connected to a carriage via a pillow beam as a strength member is adopted (see, for example, FIG. 2 of JP-A-2017-105239). reference). Further, in a vehicle provided with a pillow beam, the pillow beam is often arranged in the vicinity of the side sliding door opening of the vehicle body. Therefore, the piping connecting the air tank under the floor to the pneumatic door closing machine had to be disposed around the pillow beam.

  However, in order to shut off and exhaust the compressed air from under the floor, the switching valve operated in an emergency or the like needs to be installed in the lower part of the side structure near the side sliding door opening. Therefore, the piping connecting from the air tank under the floor to the pneumatic door closing machine must pass through the switching valve installed in the lower part of the side structure in the vicinity of the side sliding door opening and bypass the pillow beam. Therefore, there is a problem that the piping distance becomes long, and the number of operation steps involved in the installation of the piping increases.

  The present invention has been made to solve such a problem, and it is possible to install piping with simple installation, without bypassing a pillow beam, and a piping structure for a side sliding door of a railway vehicle that can reduce the piping distance. Intended to be provided.

In order to achieve the above-mentioned object, the piping structure for side sliding doors of the railcar concerning the present invention is provided with the following composition.
(1) A double-skin floor plate is connected to a carriage via a pillow beam, and an air for opening and closing the side sliding door in a railway vehicle provided with a side sliding door opening formed in the side structure near the pillow beam. Type door closing machine is installed above the side sliding door opening, and a pipe for supplying compressed air to the pneumatic type door closing machine from the air tank installed under the floor in the vicinity of the side sliding door opening A piping structure for a side sliding door of a railway vehicle formed to be connected to the pneumatic door closing machine via a switching valve installed at the lower part of the structure,
The pipe is provided with a substantially S-shaped pipe which can be inserted into the gap between the upper plate and the lower plate of the floor plate, and the first through hole formed in the upper plate with the upper end connection portion of the substantially S-shaped pipe The lower end connection portion of the substantially S-shaped pipe projects downward from the second through hole formed larger than the first through hole at a position separated from the pillow beam at the lower plate, and projects the upper end connection. It is characterized in that a part is connected to a pipe from the switching valve, and the lower end connection part is connected to a pipe from the air tank.

  In the present invention, the pipe for supplying compressed air to the pneumatic door closing machine includes a substantially S-shaped pipe which can be inserted into the gap between the upper and lower plates of the floor plate, and the upper end of the substantially S-shaped pipe A second through hole in which the connecting portion protrudes upward from the first through hole formed in the upper plate, and the lower end connecting portion of the substantially S-shaped pipe is formed larger than the first through hole at a position separated from the pillow beam in the lower plate. The lower end connection part is connected to the pipe from the air tank, so that the upper end connection part is connected to the pipe from the air tank, so the second through hole is inserted into the gap between the upper and lower plates of the floor plate. The switching valve and the air tank can be connected without bypassing the pillow beam via the substantially S-shaped piping, and the piping distance can be shortened.

  Further, a substantially S-shaped pipe is inserted into a gap between the upper plate and the lower plate of the floor plate, and the upper end connection portion of the substantially S-shaped pipe is protruded upward from the first through hole formed in the upper plate of the floor plate The lower end connection portion of the substantially S-shaped pipe projects downward from the second through hole formed larger than the first through hole at a position separated from the pillow beam in the lower plate of the floor plate, and then the upper end connection portion from the switching valve Since it connects with piping and connects a lower end connection part with piping from an air tank, attachment and connection of substantially S-shaped piping can also be simplified.

  Therefore, according to the present invention, it is possible to provide a piping structure for a side sliding door of a railway vehicle, which can be simply installed and the piping can be installed without bypassing the pillow beam and the piping distance can be shortened.

(2) In the piping structure for a side sliding door of a railway vehicle described in (1),
The second through hole is a long hole formed along a gap between inner ribs connecting the upper plate and the lower plate.

  In the present invention, since the second through hole is a long hole formed along the gap between the inner ribs connecting the upper plate and the lower plate, the substantially S-shaped pipe is formed into a long hole. (2) It can be easily inserted along the internal rib of the floor board from the through hole, and the installation work of the pipe can be simplified.

(3) In the side sliding door piping structure of a railway vehicle described in (1) or (2),
The lower plate is provided with a closing plate having a third through hole for causing the lower end connection portion to project downward and capable of closing the second through hole.

  In the present invention, since the lower plate of the floor plate has the third through hole for causing the lower end connection portion of the substantially S-shaped pipe to project downward, the closing plate capable of closing the second through hole is mounted. The sealing property between the lower plate of the floor plate and the substantially S-shaped pipe can be easily secured via the closing plate.

(4) In the piping structure for side sliding doors of a railway vehicle according to any one of (1) to (3),
The substantially S-shaped pipe is bent downward from the other end of the main pipe section, the upper end connection section bent upward from one end of the main pipe section, and the other end of the main pipe section. The lower end connection portion is formed, and the bent portion to the lower end connection portion is disposed at a lower position in the vertical direction than the bent portion to the upper end connection portion.

  In the present invention, the substantially S-shaped pipe is bent downward from the other end of the main pipe section, the upper end connection section bent upward from one end of the main pipe section, and the other end of the main pipe section. Since the lower end connection portion is formed and the bent portion to the lower end connection portion is disposed at a position lower in the vertical direction than the bent portion to the upper end connection portion, the gap between the upper and lower plates of the double skin structure Even if the upper and lower dimensions of the upper end dimension of the upper end connecting portion to the main body piping portion are smaller and the overall length dimension of the substantially S shaped pipe is considerably long, the substantially S shaped pipe is formed in the gap between the upper and lower plates Can be inserted.

  That is, since the bent portion from the main body piping portion to the lower end connection portion is disposed at a position lower in the vertical direction than the bent portion to the upper end connection portion, both upper end connection portions are inclined in the vertical direction. The bent portion does not interfere with the upper plate and the lower plate, and the upper end connection portion can be moved to the first through hole along the gap between the upper plate and the lower plate and can be inserted.

  According to the present invention, it is possible to provide a piping structure for a side sliding door of a railway vehicle that can be installed with simple installation, without bypassing the pillow beam and shortening the piping distance.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side sectional view showing the piping structure (1st Example) for side sliding doors of the rail vehicle which concerns on embodiment of this invention. It is A arrow line view of piping for side sliding doors shown in FIG. FIG. 2 is a detailed cross-sectional view of a portion B shown in FIG. It is sectional drawing for description explaining the attachment procedure of the piping structure for side sliding doors of the rail vehicle shown in FIG. (A) is a cross-sectional view when a substantially S-shaped pipe is inserted from the second through hole of the lower plate, and (B) is a top through hole of the upper plate with the upper end connection portion of the substantially S-shaped pipe It is sectional drawing when making the lower end connection part of a substantially S shape piping project from the 2nd through-hole of a lower board, making it project from the bottom, and (C) shows the upper end connection part of a substantially S shape piping from a switching valve When the lower end connection part of the substantially S-shaped pipe is made to project from the third through hole of the closing plate to connect with the piping from the air tank, and the closing plate is fixed to the flange of the lower plate FIG. It is a sectional side view showing 2nd Example of the piping structure for side sliding doors shown in FIG. It is a side sectional view showing the side sliding door (door part) structure of the rail vehicle described in patent document 1. FIG.

  Next, a piping structure for a side sliding door of a railcar according to an embodiment of the present invention will be described in detail with reference to the drawings. Specifically, in the piping structure for a side sliding door of a railcar according to the present embodiment, the mounting procedure will be briefly described after the configuration of the first embodiment is described in detail. Next, the configuration of the second embodiment will be mainly described focusing on differences from the first embodiment.

<Configuration of First Embodiment>
First, in the piping structure for a side sliding door of a railcar according to the present embodiment, the configuration of the first example will be described using FIGS. 1 to 3. FIG. 1 is a side sectional view showing a side sliding door piping structure of a railcar according to an embodiment of the present invention. In FIG. 2, A arrow directional view of piping for side sliding doors shown in FIG. 1 is shown. FIG. 3 shows a detailed sectional view of a portion B shown in FIG.

  As shown in FIGS. 1 to 3, in the piping structure 10 for a side sliding door of a railcar according to the first embodiment, a floor plate 1 of a double skin structure is connected to a truck 3 via a pillow beam 2. In the rail car 20 provided with the side sliding door opening 41 formed in the side structure 4 in the vicinity, a pneumatic door closing machine (for example, an air cylinder) 43 for opening and closing the side sliding door 42 is a side sliding door opening 41 The switching valve 52 installed at the upper side and supplying the compressed air to the pneumatic door closing machine 43 is installed at the side assembly lower portion 44 in the vicinity of the side sliding door opening 41 from the air tank 51 installed under the floor. It is the piping structure for side sliding doors of the rail vehicle formed so as to be connected to the pneumatic door closing machine 43 via.

  The double skin structure of the floor plate 1 is a structure in which the upper plate 11 and the lower plate 12 are connected by the internal rib 13. The internal rib 13 is formed in a substantially truss-like cross section aligned in a line in the vehicle width direction, and the gap 14 between the internal ribs 13 is formed along the vehicle longitudinal direction. Further, the upper surface 21 of the pillow beam 2 is connected to the lower plate 12 of the floor plate 1, and both ends 23 in the vehicle width direction are connected to side beams 15 formed at both ends in the vehicle width direction of the floor plate 1. The pillow beam 2 is formed in a double skin structure, and the center shaft 31 of the truck 3 is connected to the lower surface 22 at the center in the vehicle width direction, and air springs (not shown) are connected to both ends in the vehicle width direction. ing.

  Further, in the side structure 4, the side sliding door opening 41 and the side window 45 are respectively provided at symmetrical positions. Further, a side sliding door 42 for opening and closing the side sliding door opening 41 is mounted on the side structure 4 so as to be movable back and forth in the longitudinal direction of the vehicle. The side sliding door 42 is accommodated in the storage chamber 46 of the side structure 4 when the rod 431 of the pneumatic door closing machine 43 installed above the side sliding door opening 41 in the side structure 4 is extended. When the rod 431 of the machine 43 is shortened, the side sliding door opening 41 is closed.

  Further, compressed air for extending or shortening the rod 431 of the pneumatic door closing machine 43 is supplied from an air tank 51 installed under the floor. The compressed air supplied from the air tank 51 is switched between the cylinder chamber side and the rod chamber side by the solenoid valve 432 attached to the pneumatic door closing machine 43, and is supplied to the pneumatic door closing machine 43. The closed state or the open state of the side sliding door 42 is held by the compressed air supplied to the closing machine 43.

  The pipe 5 for supplying compressed air to the pneumatic door closing machine 43 is provided with a substantially S-shaped pipe 53 which can be inserted into the gap 14 between the upper plate 11 and the lower plate 12 of the floor plate 1. The substantially S-shaped pipe 53 is bent downward from the other end of the main body piping portion 533, the upper end connection portion 531 bent upward from one end of the main body piping portion 533, and the main body piping portion 533 extended in the vehicle longitudinal direction. And the lower end connection portion 532. At the tips of the upper end connection portion 531 and the lower end connection portion 532, connection screw portions are formed.

  The pipe 5 causes the upper end connection portion 531 of the substantially S-shaped pipe 53 to project upward from the first through hole 111 formed in the upper plate 11, and the lower end connection portion 532 of the substantially S-shaped pipe 53 is the lower plate 12. The upper end connection portion 531 is connected to the pipe 54 from the switching valve 52, and the lower end connection portion is air. It has a structure connected to the pipe 55 from the tank 51.

  In addition, after the piping 56 from the solenoid valve 432 of the pneumatic door closing machine 43 to the switching valve 52 is disposed substantially horizontally along the upper end portion of the side structure 4, it bypasses the retracted end of the rod 431. It is disposed downward along the side sliding door opening 41 and is disposed up to the switching valve 52. The switching valve 52 is provided with a manual operation handle 521, and when the operation handle 521 is turned, the supply of compressed air from the air tank 51 is shut off, and the compressed air supplied to the pneumatic door closing machine 43 is discharged. Can be discharged from

  Here, in the substantially S-shaped piping 53 in the first embodiment, the main body piping portion 533 is formed substantially horizontally from the bent portion 533a to the upper end connection portion 531 to the middle portion 533b, and the middle portion 533b to the lower end connection portion 532 It is formed to be slightly inclined downward to the bending portion 533c. The main body piping portion 533 has a structure in which the middle portion 533 b is bent in the “vertical shape” at the middle portion 533 b as described above. By adopting this “figure-like” structure, the upper and lower dimension t1 of the gap 14 between the upper plate 11 and the lower plate 12 of the floor plate 1 is smaller than the upper and lower dimension t2 of the upper end connecting portion 531 with respect to the main piping portion 533. Even when the total length dimension t3 of the V-shaped pipe 53 is considerably long, the substantially S-shaped pipe 53 can be inserted into the gap 14 between the upper plate 11 and the lower plate 12.

That is, even when trying to insert the upper end connection portion 531 into the gap 14 between the upper plate 11 and the lower plate 12 when the total length dimension t3 of the substantially S-shaped piping 53 is considerably long, the main piping The both bent portions 533a and 533c of the portion 533 interfere with the upper plate 11 and the lower plate 12 and can not be inserted. However, in the first embodiment, the bent portion 533c to the lower end connection portion 532 is moved to the upper end connection portion 531 by adopting a structure in which the main body piping portion 533 is bent in the vertical direction in the middle portion 533b. It can be arranged at a lower position in the vertical direction than the bent portion 533a. Therefore, in a state where the upper end connecting portion 531 is inclined in the vertical direction, the both bent portions 533a and 533c of the main body piping portion 533 do not interfere with the upper plate 11 and the lower plate 12, and the upper end connecting portion 531 It can be moved to the first through hole 111 along the gap 14 with the plate 12 and inserted. When the total length dimension t3 of the substantially S-shaped pipe 53 is considerably long, the case where t3 ≧ t1 / √ (1− (t1 / t2) ² ) holds true.

  The second through hole 121 is a long hole formed along the gap 14 between the internal ribs 13 connecting the upper plate 11 and the lower plate 12 of the floor plate 1. The dimension t4 in the longitudinal direction of the vehicle in the long hole of the second through hole 121 is substantially the same as the total length dimension t3 of the substantially S-shaped pipe 53. Moreover, the planar shape of the long hole of the second through hole 121 is not particularly limited, but, for example, an oval or a rectangle through which the substantially S-shaped pipe 53 can be inserted is preferable.

  Further, the lower plate 12 of the floor plate 1 is provided with a closing plate 16 having a third through hole 161 for causing the lower end connection portion 532 of the substantially S-shaped pipe 53 to project downward and which can close the second through hole 121. ing. The closing plate 16 is fastened to the flanged flange portion 122 formed around the second through hole 121 of the lower plate 12. The clearance between the upper end connection portion 531 and the first through hole 111 and the clearance between the lower end connection portion 532 and the third through hole 161 are respectively sealed by seal members.

<Installation procedure of the first embodiment>
Next, the mounting procedure of the first embodiment will be described with reference to FIG. FIG. 4 is an explanatory cross-sectional view for explaining the installation procedure of the side sliding door piping structure of the railcar shown in FIG. FIG. 4 (A) shows a state diagram when the substantially S-shaped pipe is inserted from the second through hole of the lower plate, and FIG. 4 (B) shows the upper end connection portion of the substantially S-shaped pipe as the upper plate. A state diagram when the lower end connection portion of the substantially S-shaped pipe is made to project from the second through hole of the lower plate is shown in FIG. 4C, and the upper end of the substantially S-shaped pipe is shown. The connection is connected with the pipe from the switching valve, and the lower end connection of the substantially S-shaped pipe is made to project from the third through hole of the closing plate to connect with the piping from the air tank, and the closing plate is attached to the lower plate The state figure when it fixes to a flange part is shown.

  First, as shown in FIG. 4A, the upper end connecting portion 531 is vertically oriented so that both bent portions of the main piping portion 533 of the substantially S-shaped piping 53 do not interfere with the upper plate 11 and the lower plate 12. The substantially S-shaped pipe 53 is inserted into the gap 14 between the upper plate 11 and the lower plate 12 through the second through hole 121 formed in the long hole by inclining. Specifically, as described above, the dimension in the longitudinal direction of the vehicle in the long hole of the second through hole 121 is approximately the same as the total length dimension of the substantially S-shaped pipe 53 (see FIG. 3). The upper end connection portion 531 is brought into contact with the upper plate 11 by holding the letter-shaped piping 53 substantially horizontally and passing through the second through hole 121, and then the lower end connection portion 532 is further raised. The upper end connection portion 531 is inclined in the vertical direction by bringing the middle portion 533 b of the upper portion 11 close to the upper plate 11, and the substantially S-shaped pipe 53 is inserted into the gap 14 between the upper plate 11 and the lower plate 12.

  Next, as shown in FIG. 4B, with the upper end connection portion 531 inclined in the vertical direction, the both bent portions 533a and 533c of the main body piping portion 533 are slid on the upper plate 11 and the lower plate 12 The upper end connection portion 531 is moved along the gap 14 between the upper plate 11 and the lower plate 12 to the first through hole 111 so that the upper end connection portion 531 is inserted into the first through hole 111. Protruding into. At this time, the lower end connection portion 532 is in a state of being inserted into the second through hole and protruding downward from the lower plate 12.

  Next, as shown in FIG. 4C, the upper end connection portion 531 protruding upward from the upper plate 11 and the pipe 54 from the switching valve are connected using the connection socket 541. Further, the lower end connection portion 532 which is made to project downward from the lower plate 12 is inserted into the third through hole 161 formed in the closing plate 16, and the lower end connection portion 532 and the pipe 55 from the air tank are connected using the connection socket 551. Connecting. Further, the closing plate 16 is fastened to the flanged flange portion 122 formed on the lower plate 12. Further, seal members 112 and 162 are respectively applied and sealed in the gap between the upper end connecting portion 531 and the first through hole 111 and in the gap between the lower end connecting portion 532 and the third through hole 161. In addition, a sealing member is inserted between the closing plate 16 and the flanged flange portion 122 to secure sealing performance.

<Configuration of Second Embodiment>
Next, the configuration of a second example according to the present embodiment will be described using FIG. FIG. 5 is a side sectional view showing a second embodiment of the side sliding door pipe structure shown in FIG. Here, mainly the differences from the first embodiment will be mainly described, and the same reference numerals are given to the configurations common to the first embodiment, and the description will be omitted in principle.

  As shown in FIG. 5, in the piping structure 10B for a side sliding door of a railcar according to the second embodiment, the floor plate 1 having a double skin structure is connected to a truck via the pillow beam 2, and in the vicinity of the pillow beam 2. In the rail vehicle 20B provided with the side sliding door opening 41 formed in the side structure 4, a pneumatic door closing machine for opening and closing the side sliding door is installed above the side sliding door opening 41, and the pneumatic door closing machine is compressed. The piping 5B for supplying air is formed so as to be connected to the pneumatic door closing machine via the switching valve 52 installed in the side structure lower part 44 in the vicinity of the side sliding door opening 41 from the air tank installed under the floor. It is a piping structure for the side sliding door of the rail vehicle which was carried out.

  Further, the pipe 5B for supplying the compressed air to the pneumatic door closing machine is provided with a substantially S-shaped pipe 53B which can be inserted into the gap 14 between the upper plate 11 and the lower plate 12 of the floor plate 1. The substantially S-shaped pipe 53B is bent downward from the other end of the main pipe 533B, the upper end connection 531 bent upward from one end of the main pipe 533B, and the other end of the main pipe 533B. And the lower end connection portion 532B.

  Here, in the substantially S-shaped piping 53B in the second embodiment, the main body piping portion 533B is formed in a substantially horizontal linear manner from the bending portion 533Ba to the upper end connection portion 531 to the bending portion 533Bc to the lower end connection portion 532B. As in the first embodiment, it does not have a structure in which the middle portion is bent in the form of a "letter" in the vertical direction. In the second embodiment, the vertical dimension t1 of the gap 14 between the upper plate 11 and the lower plate 12 of the double skin structure is smaller than the vertical dimension t2 of the upper end connecting portion 531 with respect to the main piping 533B as in the first embodiment. However, when the total length dimension t3 of the substantially S-shaped pipe 53B is shorter than in the first embodiment, and the upper end connecting portion 531 is vertically inclined and inserted into the gap 14 between the upper plate 11 and the lower plate 12, the main body Since both bent portions 533Ba and 533Bc of the piping portion 533B do not interfere with the upper plate 11 and the lower plate 12, the substantially S-shaped piping 53B can be inserted into the gap 14 between the upper plate 11 and the lower plate 12.

  The lower plate 12 of the double skin structure has a third through hole 161 for causing the lower end connection portion 532B of the substantially S-shaped pipe 53B to protrude downward, and a closing plate 16 capable of closing the second through hole 121 is attached. It is done.

<Function effect>
As described above, according to the side sliding door pipe structures 10 and 10B of the railcar 20 and 20B according to the present embodiment described in detail, in the pipes 5 and 5B for supplying the compressed air to the pneumatic door closing machine 43, the floor plate 1 The first through hole 31 is provided with substantially S-shaped piping 53, 53B which can be inserted into the gap between the upper plate 11 and the lower plate 12, and the upper end connection portion 531 of the substantially S-shaped piping 53, 53B is formed in the upper plate 11. A second through hole 121 which protrudes upward from the hole 111 and is formed larger than the first through hole 111 at a position where the lower end connection portions 532 and 532 B of the substantially S-shaped piping 53 and 53 B are separated from the pillow beam 2 in the lower plate 12. The lower end connection portion 531 is connected to the pipe 54 from the switching valve 52, and the lower end connection portions 532 and 532B are connected to the pipe 55 from the air tank 51. Clearance between upper plate 11 and lower plate 12 Through the S-shaped pipe 53,53B inserted through the 4, without bypassing the body bolster 2, can be connected to the switching valve 52 and the air tank 51, it is possible to shorten the piping length.

  Further, the substantially S-shaped piping 53, 53B is inserted into the gap 14 between the upper plate 11 and the lower plate 12 of the floor plate 1, and the upper end connection portion 531 of the substantially S-shaped piping 53, 53B is formed in the upper plate 11. A second protruding upper end from the first through hole 111, the lower end connecting portions 532 and 532B of the substantially S-shaped piping 53 and 53B are formed larger than the first through hole 111 at a position separated from the pillow beam 2 in the lower plate 12. After projecting downward from the through hole 121, the upper end connection portion 531 is connected to the pipe 54 from the switching valve 52, and the lower end connection portions 532 and 532B are connected to the pipe 55 from the air tank 51. Installation and connection of the piping 53, 53B can also be simplified.

  Therefore, according to this embodiment, the piping 5 and 5B can be installed without bypassing the pillow beam 2 by simple installation, and the piping distance 10 of the railcar 20 and 20B can be shortened. 10B can be provided.

  Further, according to the present embodiment, since the second through hole 121 is a long hole formed along the gap 14 between the internal ribs 13 connecting the upper plate 11 and the lower plate 12 of the floor plate 1, The S-shaped piping 53, 53B can be easily inserted along the internal rib 13 from the second through hole 121 formed in the long hole, and the mounting work of the piping 5, 5B can be simplified.

  Further, according to the present embodiment, the lower plate 12 has the third through holes 161 for causing the lower end connection portions 532 and 532B of the substantially S-shaped pipes 53 and 53B to project downward and close the second through holes 121. Since the possible closing plate 16 is mounted, the sealing property between the lower plate 12 and the substantially S-shaped piping 53, 53B can be easily secured via the closing plate 16.

Further, according to the present embodiment, the substantially S-shaped pipe 53 includes the main body piping portion 533 extended in the vehicle longitudinal direction, the upper end connection portion 531 bent upward from one end of the main body piping portion 533, and the main body piping. A lower end connecting portion 532 bent downward from the other end of the portion 533 is formed, and the bending portion 533c to the lower end connecting portion 532 is disposed at a lower position in the vertical direction than the bending portion 533a to the upper end connecting portion 531 Therefore, the upper and lower dimension t1 of the gap 14 between the upper plate 11 and the lower plate 12 of the floor plate 1 is smaller than the upper and lower dimension t2 of the upper end connecting portion 531 to the main piping 533, and the overall length t3 of the substantially S-shaped piping 53 is substantially Even when it is long (when it has a relationship of t3 ≧ t1 / 1 / (1- (t1 / t2) ² ), the substantially S-shaped piping 53 is inserted into the gap 14 between the upper plate 11 and the lower plate 12 be able to.

  That is, since the bending portion 533c from the main piping portion 533 to the lower end connection portion 532 is disposed at a lower position in the vertical direction than the bending portion 533a to the upper end connection portion 531, the upper end connection portion 531 is inclined in the vertical direction The two bent portions 533a and 533c of the main body piping portion 533 do not interfere with the upper plate 11 and the lower plate 12, and the upper end connection portion 531 along the gap 14 between the upper plate 11 and the lower plate 12 to the first through hole 111 It can be moved and inserted.

<Modification>
As mentioned above, although piping structure 10, 10B for side sliding doors of railcar 20, 20B of this embodiment was explained in detail, the present invention is not limited to this, A various change is possible in the range which does not deviate from the meaning. It is. For example, the side sliding door piping structure 10, 10B of the railcar 20, 20B of the present embodiment causes the lower plate 12 to project the lower end connection portions 532, 532B of the substantially S-shaped piping 53, 53B downward. A closing plate 16 having a through hole 161 and capable of closing the second through hole 121 is mounted. However, the means for closing the second through hole 121 is not limited to the above closing plate 16. For example, a structure for closing the gap between the lower end connection portions 532 and 532B and the second through hole 121 via a rubber plug. May be.

  Further, in the first example of the present embodiment, the bent portion 533c to the lower end connection portion 532 is formed at the upper end by adopting a structure in which the main body piping portion 533 is bent in the vertical direction at the middle portion 533b. The connection portion 531 is disposed at a lower position in the vertical direction than the bending portion 533a, but is not necessarily limited thereto. For example, the main piping portion 533 is linearly inclined in the vertical direction to bend the lower end connection portion 532 The portion 533 c may be disposed at a lower position in the vertical direction than the bending portion 533 a to the upper end connection portion 531.

  The present invention can be used as a piping structure for a side sliding door of a rail car, and more specifically, as a piping structure for a side sliding door connecting a pneumatic door closing machine for opening and closing a side sliding door of the rail vehicle and an air tank installed under the floor. .

Reference Signs List 1 floor plate 2 pillow beam 3 cart 4 side structure 5, 5B piping 10, 10B side sliding door piping structure 11 upper plate 12 lower plate 13 internal rib 14 gap 16 closing plate 20, 20B railway vehicle 41 side sliding door opening 42 side sliding door 43 Pneumatic door closing machine (air cylinder)
44 side structure lower part 51 air tank 52 switching valve 53, 53B substantially S-shaped piping 54, 55 piping 111 first through hole 121 second through hole 161 third through hole 531 upper end connecting portion 532, 532 B lower end connecting portion 533, 533 B Main part piping part 533a, 533c bending part

Claims (4)

In a railway vehicle provided with a double skin floor plate connected to a carriage via a pillow beam and having an opening for a side sliding door formed in a side structure in the vicinity of the above pillow beam, a pneumatic door closing which opens and closes a side sliding door A machine is installed above the side sliding door opening, and a pipe for supplying compressed air to the pneumatic door closing machine from an air tank installed under the floor to a side structure lower part near the side sliding door opening. It is the piping structure for side sliding doors of the rail vehicle formed so that it might connect to the said pneumatic door closing machine via the switching valve to install, Comprising:
The pipe is provided with a substantially S-shaped pipe which can be inserted into the gap between the upper plate and the lower plate of the floor plate, and the first through hole formed in the upper plate with the upper end connection portion of the substantially S-shaped pipe The lower end connection portion of the substantially S-shaped pipe projects downward from the second through hole formed larger than the first through hole at a position separated from the pillow beam at the lower plate, and projects the upper end connection. The side sliding door pipe structure of a railway vehicle, wherein the lower portion connection portion is connected to a pipe from the air tank. In the side sliding door piping structure of a railway vehicle according to claim 1,
The second sliding hole is a long hole formed along the gap between the inner ribs connecting the upper plate and the lower plate. The piping structure for a side sliding door of a railway vehicle according to claim 1 or 2
The lower sliding plate is provided with a third through hole for causing the lower end connection portion to project downward, and a closing plate capable of closing the second through hole is mounted on the side sliding door pipe of the railway vehicle Construction. The piping structure for a side sliding door of a railway vehicle according to any one of claims 1 to 3.
The substantially S-shaped pipe is bent downward from the other end of the main pipe section, the upper end connection section bent upward from one end of the main pipe section, and the other end of the main pipe section. And the lower end connection portion is formed, and the bent portion to the lower end connection portion is disposed at a position lower in the vertical direction than the bent portion to the upper end connection portion. Construction.

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