JP2018140648A - Railway vehicle comprising side opening door with air-tight seal mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a railway vehicle comprising a side opening door having an air-tight seal mechanism which is produced by means of reduced man-hours.SOLUTION: Provided is a railway vehicle comprising a side opening door having an air-tight seal mechanism which includes an expansive sealing rubber arranged along an opening edge of an opening of a body structure and a whole peripheral rubber arranged along an outer peripheral edge of the side opening door for closing the opening. The whole peripheral rubber comprises a base part fixed to the outer peripheral edge and a thick part arranged to face the expansive sealing rubber and supported by the base part. The expansive sealing rubber contacts with the thick part of the whole peripheral rubber by means of expansion of the expansive sealing rubber.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a railway vehicle that travels at a high speed, and more particularly to a railway vehicle that includes a hinged door having an airtight seal mechanism that is used by a crew member to get on and off.

  In general, when a railway vehicle running at a high speed passes by an oncoming train in a tunnel, the pressure outside the vehicle (inside the tunnel) changes rapidly. For this reason, railroad cars that run at high speeds are airtight on the side doors of railway vehicles so that the pressure inside the vehicle changes suddenly and the passengers and passengers do not feel uncomfortable hearing. Measures are taken such as providing a sealing mechanism and providing a shut-off valve at the air supply and exhaust ports of the air conditioner.

  Patent Document 1 discloses an airtight structure comprising an inwardly open door supported by a hinge (hinge) on a side structure forming a side surface of a vehicle body, and an inflatable seal rubber provided at an edge of an opening of the side structure in contact with an outer edge of the door. A railway vehicle including a side hinged door having a sealing mechanism is disclosed.

JP 2006-240481 A

  A side having an airtight seal mechanism comprising an inwardly open door supported by a hinge (hinge) on a side structure forming a side surface of the vehicle body, and an inflatable seal rubber provided at an opening edge of the side structure in contact with an outer edge of the door When the hinged door is provided in the railway vehicle, it is desirable that the inflatable seal rubber abuts the outer periphery of the side hinged door without any gap.

  When manufacturing side structures, side structures that are provided with expansive seal rubber due to dimensional tolerances of the hollow extruded profiles that make up the side structures, deformation and strain associated with heat input when joining the hollow extruded profiles, etc. Since the flatness of the opening edge cannot be ensured, the hermetic sealability may not be maintained without the inflatable seal rubber contacting the outer periphery of the side hinged door.

  For this reason, it is necessary to insert a liner between the expandable seal rubber and the opening edge of the side structure as necessary in order to ensure that the expandable seal rubber abuts on the outer peripheral edge to ensure airtight sealability.

  Since the operation of inserting the liner depends on the flatness of the opening edge of the side structure, an operation of confirming the contact state between the inflatable seal rubber and the outer periphery of the side door and a liner having a predetermined thickness are prepared. Since work is required, the production man-hours tend to increase.

  An object of the present invention is to provide a railway vehicle including a hinged door having an airtight seal mechanism that can reduce the number of manufacturing steps.

  In order to solve the above problems, the present invention provides an inflatable seal rubber provided along an opening edge of an opening of a structure, and an all-around rubber provided along an outer peripheral edge of a hinged door that closes the opening. The all-around rubber has a base portion fixed to the outer peripheral edge, and a thick-walled portion disposed opposite to the inflatable seal rubber and supported by the base portion. The expandable seal rubber abuts on the thick part of the all-around rubber due to the expansion of the expandable seal rubber.

  ADVANTAGE OF THE INVENTION According to this invention, a rail vehicle provided with the hinged door which has an airtight seal mechanism which can reduce a manufacturing man-hour can be provided.

FIG. 1 is a side view of a railway vehicle in the present embodiment. FIG. 2 is a cross-sectional view (A-A cross-sectional view in FIG. 1) that intersects the height direction of the side hinges provided in the railway vehicle. FIG. 3 is an enlarged view (an enlarged view of a portion B in FIG. 2) of an airtight seal mechanism provided between the outer edge of the side hinged door and the outer periphery of the opening of the side structure of the railway vehicle. FIG. 4 is a cross-sectional view of the all-around rubber constituting the hermetic seal mechanism. FIG. 5 is a cross-sectional view of another circumferential rubber constituting the hermetic seal mechanism.

  Hereinafter, with reference to the drawings, a railway vehicle including a side hinge door having an airtight seal mechanism in the present embodiment will be described. First, let the longitudinal direction (rail direction) of the railway vehicle 1 that defines each direction provided for explanation be the X direction, the width direction (sleeper direction) is the Y direction, and the height direction is the Z direction. Hereinafter, they are simply referred to as an X direction, a Y direction, and a Z direction.

  FIG. 1 is a side view of a railway vehicle in the present embodiment. The structure of the railway vehicle 1 includes a frame 10 that forms a floor, side structures 20 that are erected on both ends of the frame 10 in the Y direction, and a wife that is erected on the edge of the frame 10 in the X direction. It is a hexahedron composed of a structure (not shown) and a roof structure 40 that is placed on the upper end of the side structure 20 and to which the upper end of the wife structure is connected.

  The side structure 20 includes a window opening 22, a side sliding door 24 that is used for getting on and off passengers, a side door 26 that is used for getting on and off passengers, and the like. The wife structure is provided with a through-passage 31 through which passengers and the like travel between adjacent vehicles. The roof structure 40 is equipped with an air conditioner (not shown) that adjusts the temperature and humidity environment in the vehicle.

  FIG. 2 is a cross-sectional view (A-A cross-sectional view in FIG. 1) that intersects the height direction of the side hinges provided in the railway vehicle. The side structure 20 is arranged with the center line 5 in the middle of the Y direction, and the side hinge 26 provided in the side structure 20 is a laminated body attached to the frame body 27 provided in the periphery thereof and the opening 27a of the frame body 27. A glass 28 and a hinge 29 that is partly fixed to the side structure 20 and supports the side door 26 so as to be pivotable inwardly. The frame body 27 is connected to a hinge 29 via a support body 31 fixed to a part of the frame body 27. At this time, the side door 26 is configured as a door for closing the opening 20a of the side structure 20, which serves as an entrance for a crew member, and one end of the side door 26 is supported by the hinge 29 via the support 31 so as to be opened and closed. Has been. Further, an airtight seal mechanism 35 is disposed between the outer edge of the side hinge door 26 and the outer periphery of the opening 20 a of the side structure 20 of the railway vehicle 1.

  FIG. 3 is an enlarged view (an enlarged view of a portion B (seal portion) in FIG. 2) of an airtight seal mechanism provided between the outer edge of the side hinge door and the outer periphery of the opening of the side structure of the railway vehicle. FIG. 4 is a cross-sectional view of the all-around rubber constituting the hermetic seal mechanism, and FIG. 5 is a cross-sectional view of another all-around rubber constituting the hermetic seal mechanism.

  Out of the outer peripheral edge 27a of the frame body 27 constituting the side door 26, on the side facing the opening edge 25 formed along the edge of the opening 20a of the side structure 20, the entire periphery of the outer peripheral edge 27a is formed. Thus, the annular all-around rubber 50 is fixed. Of the opening edge 25 of the side structure 20, it is disposed over the entire periphery of the opening edge 25 on the side facing the entire circumference rubber 50 (the region closed by the outer peripheral edge 27 a of the frame body 27) and expands. An annular cage (retainer) 62 for holding the expandable seal rubber 60 and an annular inflatable seal rubber 60 formed in a tube shape are disposed. The cage 62 has a U-shaped cross section, and is discretely fixed to the opening edge 25 of the side structure 20 with a plurality of screws 64. At this time, since the tubular expandable seal rubber 60 is mounted in the U-shaped recess of the retainer 62, the expandable seal rubber 60 is securely attached to the opening edge 25 of the side structure 20 via the retainer 62. Fixed. A recess 60 a is formed at the top of the inflatable seal rubber 60 (on the side facing the entire circumference rubber 50).

  Here, between the outer peripheral edge 27 a of the side hinge door 26 and the opening 20 a of the side structure 20, an airtight seal mechanism 35 including an all-around rubber 50, a retainer 62, and an inflatable seal rubber 60 is disposed. When the side hinge 26 is closed and a predetermined condition is satisfied (for example, when the speed of the railway vehicle 1 exceeds a predetermined speed), air is injected into the inflatable seal rubber 60. The expandable seal rubber 60 expands.

  When the inflatable seal rubber 60 provided at the opening edge 25 of the side structure 20 expands, the top of the inflatable seal rubber 60 abuts on the entire peripheral rubber 50 provided at the outer peripheral edge 27a of the side door 26. Sealability is ensured. For this reason, even when the railway vehicle 1 is traveling at a high speed and passes the oncoming train in the tunnel, the inflow and outflow of air from the periphery of the side door 26 can be suppressed.

  As shown in FIG. 4, the all-around rubber 50 is disposed opposite to the annular base 52 bonded to the outer peripheral edge 27 a and the inflatable seal rubber 60, and is formed integrally with the base 52 and supported by the base 52. The thick part 56 is formed with a larger thickness than the base part 52. By providing the thick rubber portion 56 on the circumferential rubber 50, when the expansible seal rubber 60 expands, the top of the expansible seal rubber 60 abuts on the thick wall portion 56 of the circumferential rubber 50. Sex is secured.

  In particular, even if the flatness of the opening edge 25 of the side structure 20 is not good due to the dimensional tolerance of the members constituting the side structure 20 or the distortion when manufacturing the side structure 20, the thick portion 56 is formed. Since the inflatable seal rubber 60 is surely brought into contact with the entire circumference rubber 50 in the case of the entire circumference rubber 50 provided, the airtight sealability of the side door 26 can be ensured.

  Further, by providing the thick rubber portion 56 on the entire circumference rubber 50, conventionally, when the flatness of the opening edge 25 of the side structure 20 is not good, a liner (between the retainer 62 and the opening edge 25) provided in the actual alignment is provided. Therefore, the railway vehicle 1 including the side hinge door 26 having the airtight seal mechanism 35 that can reduce the number of manufacturing steps can be provided.

  Further, as shown in FIG. 5, by providing an annular cavity portion 54 in the thick wall portion 56 of the all-around rubber 50, the material cost of the all-around rubber 50 can be reduced and the airtight seal mechanism can reduce the number of manufacturing steps. The railway vehicle 1 including the side hinge door 26 having 35 can be provided.

  According to this Embodiment, the rail vehicle 1 provided with the side hinge door 26 which has the airtight seal mechanism 35 which can reduce a manufacturing man-hour can be provided.

  In addition, this invention is not limited to above-described embodiment, Various modifications are included. In addition, it is possible to add, delete, and replace other configurations for a part of the configuration of the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Railway vehicle, 5 ... Center line, 10 ... Underframe, 20 ... Side structure, 22 ... Window, 24 ... Side sliding door, 25 ... Opening edge, 26 ... Side hinged door, 27 ... Frame, 27a ... Outer periphery, 28 ... Laminated glass (window), 29 ... Hinges (hinge), 35 ... Airtight seal mechanism, 40 ... Roof structure, B ... Seal part, 50 ... Round rubber, 52 ... Base part, 54 ... Cavity part, 56 ... Thick part 60 ... expandable seal rubber, 62 ... retainer, 64 ... screw, 70 ... arrow

Claims (5)

An inflatable seal rubber provided along the opening edge of the opening of the structure;
An airtight seal mechanism including an all-around rubber provided along an outer peripheral edge of the hinged door that closes the opening,
The all-around rubber is
A base fixed to the outer periphery;
A thick portion disposed opposite to the expandable seal rubber and supported by the base, and
A railway vehicle comprising a hinged door having an airtight seal mechanism in which the expandable seal rubber abuts on the thick portion of the all-around rubber due to expansion of the expandable seal rubber. The railway vehicle according to claim 1,
The thick part is
A railway vehicle comprising a hinged door having an airtight seal mechanism characterized in that the thickness is larger than that of the base. In the railway vehicle according to claim 1 or 2,
Having an annular retainer fixed along the opening edge of the opening of the structure and having a U-shaped cross section;
A railway vehicle comprising a hinged door having an airtight seal mechanism, wherein the expandable seal rubber is mounted in a U-shaped recess of the cage. The railway vehicle according to any one of claims 1 to 3,
The structure is a side structure forming a side surface of the railway vehicle,
A railcar provided with a hinged door having an airtight seal mechanism, wherein the hinged door is a side hinged door for crew members to get on and off. In the rail vehicle according to any one of claims 1 to 4,
A railway vehicle comprising a hinged door having an airtight seal mechanism, wherein an annular cavity is formed in the thick part.

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