JP4694464B2 - Support structure for side door presser of railway vehicle - Google Patents

Description

  The present invention relates to a columnar support structure that is equipped with a side door pressing device that airtightly presses a side door that closes the entrance / exit of a railway vehicle, and in particular, for a side door pressing device for a railway vehicle that suppresses the influence on the vehicle structure. It relates to the support structure.

A high-speed railway vehicle such as the Shinkansen (registered trademark) employs a side door that is closed in an airtight state at the entrance to prevent the air pressure inside the vehicle from fluctuating rapidly when entering the tunnel. Side door, the door portion is pressed against the airtight seal portion provided on the periphery of the door opening when the door portion is closed by a plurality of side door holding device. The side door pressing device includes a door pressing cylinder, and the rod extends to press the side door with the pressing force so as to resist the shocking external pressure applied to the high-speed railway vehicle when entering the tunnel.

  Support frames are installed on the left and right inside the vehicle body at the entrance / exit, and a side door pressing device is attached thereto. FIG. 5 is a view showing the support frame from the inside of the entrance / exit, and FIG. 6 is a view showing the support frame from the longitudinal direction of the vehicle body (the direction of arrow A in FIG. 5). In the conventional railway vehicle, the support frame 100 is thus fixed to the railway vehicle structure 1 to form a side door pressing device support structure. The support frame 100 is a hollow pipe having a rectangular cross section, for example, and is formed by being refracted from the roof side as shown in FIG. The lower end is fixed to the upper surface of the underframe 3 and the upper end is fixedly installed on the inner surface (hereinafter referred to as “the roof structure side”) of the railway vehicle structure 1 that continues from the side structure to the roof structure 2.

In this support structure for the side door pressing device, the fixed base 105 is fixed to the base frame 3, the lower end of the support frame 100 is abutted and joined thereto, and the reinforcing plate 106 is fixed to the roof structure 2 side. The upper end of the support frame 100 is abutted against and joined. The attachment member 105, the reinforcing plate 106, and the support frame 100 attached thereto are joined together by welding. The left and right support frames 100 are provided with three mounting plates 17 at the top and bottom, and the side door pressing device 16 is attached thereto. And the support frame 100 etc. are accommodated in the door pocket and the vehicle inner wall in which the side door 5 is accommodated.
JP 2005-132353 A

In the high-speed railway vehicle, the roof structure 2 and the side structure of the vehicle structure 1 are constituted by a double skin panel 80 of an extruded hollow shape material for the purpose of ensuring rigidity and reducing the weight of the vehicle body. The double skin panel 80 is, for example, an aluminum alloy extrusion molding material, and has a cross-section of a truss structure in which two face plates 81 and 82 on the inner side and the outer side of the vehicle body are connected by a plurality of ribs 83. And the thickness of the face plates 81 and 82 and the rib 83 is 3 mm or less. However, when the conventional side door presser support structure as shown in FIG. 6 is adopted for the vehicle structure 1 constituted by such a double skin panel 80, there is a problem that the fatigue life is shortened.

Since the side door pressing device 16 mounted on the mounting plate 17 presses the side door 5 with a cylinder or the like so as to be hermetically closed, a force acts on the side door pressing device 16 in the direction of the arrow when external pressure is applied. Then, a shearing force and a moment act on the joint portion of the support frame 100. At that time, a problem is a joint portion on the roof structure 2 side constituted by the double skin panel 80. In the support frame 100, stress concentrates on the joint portion at the end of the support frame 100 due to a shearing force or a moment. The vehicle structure of the double skin panel 80 is strong against the force applied to the entire structure, but is merely connected by welding the reinforcing plate 106 to the thin face plate 82 at the joint. It is weak against the force applied to the joint as seen in

Therefore, it is conceivable to reduce the stress concentration by increasing the area of the reinforcing member. However, the reinforcing member is welded in a wide range, and heat is entered into the vehicle structure during welding, resulting in distortion. It will reduce the strength of the material.
In addition, an airtight load is applied to the vehicle structure during traveling. In this case, the entire vehicle structure 1 is deformed. However, if the support frame 100 is bonded to the roof structure 2 side, deformation of the vehicle structure is constrained at the bonded portion, and a load is applied to the bonded portion. Therefore, there is a problem that the fatigue life of the vehicle structure 1 to which the support frame 100 is welded is shortened.

  Accordingly, an object of the present invention is to provide a support structure for a side door pressing device for a railway vehicle in which a load on the vehicle structure is suppressed in order to solve such a problem.

The railcar side door presser support structure according to the present invention is mounted on a railcar structure, and is equipped with a door presser for pressing the side door from the inside and sealing the entrance and exit. The left and right side structures and the roof structure of the railway vehicle structure have a U-shaped support frame formed so as to be in contact with the side structure and the roof structure. is fixed against, characterized in that the pillar portion that is erected along the side structure the one in which the door holding device is mounted.

The support structure for a side door pressing device for a railway vehicle according to the present invention includes: a pillar portion in which the support frame stands along the side structure; a beam portion that is connected to the pillar portions on both sides along the roof structure; and a post member which upper end is joined to the middle parts, it is preferred the lower end of said post member and the pillar portion in which is fixed with respect to each of the underframe.
Further, in the support structure for a side door press device for a railway vehicle according to the present invention, the support frame is formed by dividing the left and right symmetrically, and a column portion that stands up along the side structure, and a middle column portion on the vehicle body center side. And a beam part connecting the pillar part and the middle pillar part along the roof structure, and lower ends of the pillar part and the middle pillar part are respectively fixed to the underframe. It is preferable.

Further, the railcar side door presser support structure according to the present invention is provided with a door presser that is fixed to the railcar structure and that presses the side door from the inside to airtightly close the entrance. The roof structure and the left and right side structures of the railway vehicle structure are not in contact with each other, and a column member formed along the side structure and a support member that supports the column member from the center side in the vehicle are connected to each other. A support frame, wherein the pillar member and the support member are fixed to the frame, and the door pressing device is attached to the pillar member standing along the side structure. To do.

  According to the present invention, since the support frame is separated from the roof structure side, the load acting through the door pressing device does not cause a moment or the like in the joint portion with the double skin panel as in the prior art. A load repeatedly generated every time external pressure is applied is not applied to the vehicle structure. Further, even if the entire vehicle structure is deformed due to an airtight load acting during traveling, the support frame is not joined to the roof structure side, so that the deformation is not constrained. There is no load on the structure.

Next, embodiments of the support structure for a side door pressing device of a railway vehicle according to the present invention will be described below with reference to the drawings. First, FIG. 1 is a view showing a first embodiment of a support structure for a side door pressing device from the longitudinal direction of the vehicle body. The support structure for the side door holding device, there is provided a high-speed railway vehicle is constituted by a support frame 10 for mounting the side door holding device 16 which holds down the side door 5 of the entrance. In the railway vehicle structure 1, the side structure in which the side door 5 is formed and the roof structure 2 are continuously formed by the double skin panel 80, and a wife structure (not shown) is formed in the front-rear direction and connected to the frame 3. Has been.

  As illustrated, the support frame 10 of the present embodiment has a gate shape formed along the roof structure 2 and the left and right side structures (side doors 5 provided on the side structures). The support frame 10 is a hollow pipe having a rectangular cross section, and has a shape in which an upper beam portion 13 is continuous from left and right column portions 11 via a refracting portion 12. The lower ends of the column portions 11 are both welded to the frame 3 via the fixed table 15. As with the conventional support frame 100 shown in FIG. 5, the support frame 10 is installed at two locations on the left and right sides of the entrance doors 5.

  The entrance / exit of the railway vehicle is provided at the same position with respect to the left and right side surfaces of the vehicle body. Therefore, the support frame 10 formed along the vehicle structure is provided with side door pressing devices 16 for both side doors 5 and 5 located on the left and right sides of the vehicle body. In other words, since the support frame 10 is provided with the column portions 11 and 11 on the left and right along the side structure, the three side door pressing devices 16 are respectively attached thereto. The side door pressing device 16 is constituted by an air cylinder, and is extended so that the rod presses the side door 5. A mounting plate 17 is fixed to the pillar portion 11 of the support frame 10 at three positions on the upper and lower sides, and side door pressing devices 16 are mounted on the mounting plate 17 one by one.

  In the support structure for the side door pressing device of the present embodiment, the gate-shaped support frame 10 is fixed only to the base frame 3 and is separated from the roof structure 2 side. The support frame 10 and the side door pressing device 16 mounted on the support frame 10 are fixed to the interior of the door pocket and the interior panel in which the side door 5 is accommodated, and the side door pressing device support structure has a wall surface or It is stored in the ceiling surface so that it cannot be seen from inside the car.

When the high-speed railway vehicle is running, the side door pressing device 16 fixed to the support frame 10 is driven, and the side door 5 is pressed outward against the airtight seal portion of the entrance / exit. Whereby vehicle is kept airtight, rise, such as during a tunnel rush, even when a shocking external pressure on the car dual structure, the side door holding device 16 is a side door 5 supported from the vehicle interior side abruptly car air pressure I try not to. And the external pressure concerning the side door 5 acts on the direction shown by the arrow with respect to the pillar part 11 on either side from the side door pressing device 16. FIG.

The support frame 10 receives a load of about 10 kN at the maximum on the left and right column parts 11 as a whole. However, in the present embodiment, since the support frame 10 is separated from the roof structure 2 side, a moment or the like is not generated at the joint portion with the double skin panel 80 as in the prior art. Therefore, it is possible to extend the fatigue life of the vehicle structure that is no longer subjected to the load that has been repeatedly generated every time external pressure is applied. Further, in the support frame 10 having a gate shape, the left and right column portions 11 are counteracted by almost the same load acting in opposite directions. Therefore, the influence on the joint portion with the underframe 3 is also reduced. Furthermore, even if the entire vehicle structure 1 is deformed due to an airtight load acting during traveling, the support frame 10 is not joined to the roof structure 2 side, so that the deformation is not constrained. As a result, no load is applied to the vehicle structure, which is effective in extending the fatigue life.

Next, a second embodiment of the support structure for the side door pressing device will be described. FIG. 2 is a view showing a second embodiment of the support structure for the side door pressing device from the longitudinal direction of the vehicle body. The same components as those in the first embodiment will be described with the same reference numerals. As for the support frame 20 of this embodiment, a pair of separated ones are symmetrically configured with respect to the left and right side doors 5 and 5 as in the prior art. The support frame 20 is a hollow pipe having a rectangular cross section, and the upper beam portion 23 is continuous from the left and right column portions 21 via the refracting portion 22, and the middle column portion 24 is formed at the center of the vehicle body. The lower ends of the column portions 21 and 24 are welded to the frame 3 via the fixed base 25. Therefore, also in this embodiment, the gate-shaped support frame 20 is fixed only to the underframe 3 and has a structure separated from the roof structure 2 side without being joined. Further, such support frames 20 are installed at two places on the left and right sides of the side door 5 at the entrance / exit, in the same manner as the support frame 100 shown in FIG.

In the support frames 20 and 20 divided into left and right, the interval between the middle pillar portions 24 and 24 is the deck-side passage width or the cabin-side entrance width. Therefore, the support frame 20 is fixed in the door pocket of the side door 5 and the interior panel, and is housed in the wall surface or ceiling surface, so that it cannot be seen from inside the vehicle. Therefore, in such a support structure for the side door pressing device, the side door 5 is pressed by the side door pressing device 16 during traveling of the vehicle, and the airtightness in the vehicle is maintained. When a shocking external pressure is applied to the vehicle structure when entering the tunnel, the external pressure applied to the side door 5 acts in the direction indicated by the arrow from the side door pressing device 16 to the left and right column portions 21.

  However, even in the present embodiment, since there is no portion where the support frame 20 is joined to the roof structure 2 side, the load on the vehicle structure constituted by the double skin panel 80 as in the prior art is not applied, and the fatigue life is extended. Became possible. Further, even if the entire vehicle structure 1 is deformed due to an airtight load acting during traveling, since the support frame 20 is not joined to the roof structure 2 side, the deformation is not constrained. As a result, no load is applied to the vehicle structure, which is effective in extending the fatigue life.

  Next, a third embodiment of the support structure for the side door pressing device will be described. FIG. 3 is a view showing a third embodiment of the support structure for the side door pressing device from the longitudinal direction of the vehicle body. The same components as those in the first embodiment will be described with the same reference numerals. As in the first embodiment, the support frame 30 of the present embodiment is formed in a portal shape with respect to the left and right side doors 5 and 5. The support frame 30 is a hollow pipe having a rectangular cross section, and is formed along the roof structure 2 and the left and right side structures (side doors 5 provided on the side structure). The upper beam portion 33 is continuous through the lower end of the column portions 31 and 31, and the lower ends of the column portions 31 and 31 are welded to the base frame 3 via the fixed base 35.

  Furthermore, in the present embodiment, the column members 34 are connected to the beam portion 33 on the vehicle body center side, and the lower ends thereof are welded to the frame 3 via the fixed base 35. Therefore, the support frame 30 is fixed only to the underframe 3 and is separated from the roof structure 2 side. Since the interval between the pillar members 34 and 34 is also the deck-side passage width or the cabin-side entrance width in the present embodiment, the support frame 30 is fixed to the inside of the door pocket of the side door 5 or the interior panel, and to the wall surface or ceiling. It is stored in the plane so that it cannot be seen from inside the car. Further, such support frames 30 are installed at two places on the left and right sides of the side door 5 at the entrance as in the support frame 100 shown in FIG.

  Therefore, in such a support structure for the side door pressing device, the side door 5 is pressed by the side door pressing device 16 during traveling of the vehicle, and the airtightness in the vehicle is maintained. When a shocking external pressure is applied to the vehicle structure when entering the tunnel, the external pressure applied to the side door 5 acts in the direction indicated by the arrow from the side door pressing device 16 to the left and right column portions 31.

  However, since there is no portion to be joined to the roof structure 2 side even in the support frame 30, it is not necessary to apply a load to the vehicle structure composed of the double skin panel 80 as in the prior art, and the fatigue life can be extended. It was. In the present embodiment, the rigidity of the support frame 30 can be increased by providing the column member 34. And even if a deformation occurs in the entire vehicle structure 1 due to an airtight load acting during traveling, the support frame 30 is not joined to the roof structure 2 side, so that the deformation is not constrained. As a result, no load is applied to the vehicle structure, which is effective in extending the fatigue life.

  Next, a fourth embodiment of the support structure for the side door pressing device will be described. FIG. 4 is a view showing a fourth embodiment of the support structure for the side door pressing device from the longitudinal direction of the vehicle body. The same components as those in the first embodiment will be described with the same reference numerals. As in the first embodiment, the support frame 40 according to the present embodiment is configured in a portal shape with respect to the left and right side doors 5. The support frame 40 is a hollow pipe having a rectangular cross section, and a column member 41 formed along a side structure (side door 5 provided on the side structure) and a support member 42 that supports the column member 41 are connected to each other. Is welded to the frame 3 via a fixed table 45.

The support frame 40 is fixed only to the underframe 3 and is away from the side structure and the roof structure 2. Since the support members 42 and 42 are also located in the deck-side passage width and the cabin-side entrance width in this embodiment, the support frame 40 is housed in the wall surface or ceiling surface so that it cannot be seen from inside the vehicle. ing. Further, like the support frame 100 shown in FIG. 5, the support frames 40 are installed at two places on the left and right sides of the entrance doors 5. Thus, in such a support structure for the side door pressing device, the side door 5 is pressed by the side door pressing device 16 during traveling of the vehicle, and airtightness in the vehicle is maintained. When a shocking external pressure is applied to the vehicle structure when entering the tunnel, the external pressure applied to the side door 5 acts in the direction indicated by the arrows from the side door pressing device 16 to the left and right column members 41.

  However, since there is no portion to be joined to the roof structure 2 side even in the support frame 40, a load on the vehicle structure composed of the double skin panel 80 as in the conventional case is not applied, and the fatigue life can be extended. It was. Further, in the present embodiment, the rigidity of the support frame 40 can be increased by providing the support member 42. And even if a deformation occurs in the entire vehicle structure 1 due to an airtight load acting during traveling, the support frame 40 is not joined to the roof structure 2 side, so that the deformation is not constrained. As a result, no load is applied to the vehicle structure, which is effective in extending the fatigue life.

  As described above, the embodiment of the support structure for a side door pressing device for a railway vehicle according to the present invention has been described. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. It is.

It is the figure which showed 1st Embodiment of the support structure for side door pressing apparatuses from the vehicle body longitudinal direction. It is the figure which showed 2nd Embodiment of the support structure for side door pressing apparatuses from a vehicle body longitudinal direction. It is the figure which showed 3rd Embodiment of the support structure for side door pressing apparatuses from the vehicle body longitudinal direction. It is the figure which showed 4th Embodiment of the support structure for side door pressing apparatuses from a vehicle body longitudinal direction. It is the figure which showed the conventional support structure for side door pressing apparatuses provided in the entrance / exit from the vehicle inner side of the entrance / exit. It is the figure which showed the support structure for side door pressing apparatuses of FIG. 5 from the vehicle body longitudinal direction (arrow A direction of FIG. 5).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Railcar structure 2 Roof structure 3 Underframe 5 Side door 10 Support frame 11 Pillar part 12 Refraction part 13 Beam part 15 Fixing base 16 Side door pressing device 17 Mounting plate 80 Double skin panels 81 and 82 Face plate 83 Rib

Claims (4)

In the support structure for the side door press device of the railroad vehicle, which is fixed to the structure for the rail vehicle and is equipped with a door press device for pressing the side door from the inside and sealing the entrance and exit airtightly,
There is a U-shaped support frame formed so as to be along the side structure and the roof structure without contact with the left and right side structures and the roof structure of the railway vehicle structure. A support structure for a side door pressing device of a railway vehicle, wherein the door pressing device is attached to a pillar portion fixed along and extending along the side structure. In the support structure for the side door pressing device of the railway vehicle according to claim 1,
The support frame includes a column portion that stands up along the side structure, a beam portion that is connected to the column portions on both sides along the roof structure, and a column member that has an upper end joined in the middle of the beam portion, A support structure for a side door pressing device of a railway vehicle, wherein lower ends of a column part and the column member are respectively fixed to the frame. In the support structure for the side door pressing device of the railway vehicle according to claim 1,
The support frame is formed by dividing the left and right symmetrically, and connects the pillar portion standing along the side structure, the middle pillar portion on the vehicle body center side, and the pillar portion and the middle pillar portion along the roof structure. A support structure for a side door pressing device for a railway vehicle, characterized in that a lower end of each of the column portion and the middle column portion is fixed to the frame. In the support structure for the side door press device of the railroad vehicle, which is fixed to the structure for the rail vehicle and is equipped with a door press device for pressing the side door from the inside and sealing the entrance and exit airtightly,
A support in which a column member formed along the side structure and a support member that supports the column member from the center side in the vehicle are connected to each other without contact with the roof structure and the left and right side structures of the railway vehicle structure. A railway vehicle, wherein the pillar member and the support member are fixed to a frame, and the door pressing device is attached to a pillar member that stands up along the side structure. Support structure for the side door presser.

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