JPH0661643U - Airtight structure of side entrance doors of railway vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] The air-tightness of the side entrance / exit door is ensured, and the door is positioned so that the outer surface of the side entrance / exit door is flush with the outer surface of the vehicle body when the door is closed. [Structure] Packing 4 for holding side entrance door 1 airtight
A contact portion 5 for restricting the amount of movement of the door 1 when the door 1 is pressed by the pressing cylinder 3 is provided in the vicinity of.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an airtight structure of a side entrance / exit door of a railway vehicle, and particularly for a vehicle in which the side entrance / exit door is pressed by a pressing means to improve airtightness, and further, the door and the outer surface of the vehicle body are flush with each other. Regarding the airtight structure of the side entrance door.

[0002]

[Prior art]

 In recent years, along with the speeding up of railway vehicles, the car body has been made airtight, and in order to make the car body surface as smooth as possible in order to reduce running resistance and noise, side entrance doors and car body outer surface have been Efforts are being made to make them flush.

For this reason, for example, a side entrance / exit door is slidably suspended in the longitudinal direction of the vehicle body, and when the door is closed, the door is slid and guided to a door support portion provided in an opening portion of the side plate, so that the door and the vehicle body There is a type in which a pressing means such as a pressing cylinder presses the vehicle from the inside to the outside so that the outside surface is flush with the outside surface.

A rubber packing for airtightly maintaining a space between the door and the door support portion of the side plate is attached to the peripheral portion of the door or the door support portion of the side plate, and the packing is attached to the packing. Therefore, the airtightness between the door and the door support portion of the side plate is maintained, and the door is positioned.

[0005]

[Problems to be solved by the device]

 However, in the above-mentioned one, since the airtightness of the side entrance / exit door and the side plate is simultaneously held by the rubber packing and the door is positioned at the same time, it is complicated to set the elastic force of the rubber packing and the pressing force of the door supporting portion. It was. In addition, since the elasticity and thickness of the packing change with repeated use, it is difficult to keep the door airtight and to keep the door and the outer surface of the vehicle body flush with each other.

Further, since the door is positioned by the rubber packing, the position of the door cannot be reliably held, and the door is not opened due to a momentary pressure difference between the inside and the outside of the vehicle body that occurs when the tunnel goes in and out. It sometimes moved.

[0007] Therefore, the present invention has a simple structure and can reliably keep the side entrance / exit door airtight, and can keep the door and the outer side surface of the vehicle body flush with each other. It is intended to provide an airtight structure for the door.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a side entrance / exit of a railway vehicle, which is provided with a packing between the peripheral portion of the door and the door support portion of the side plate and is provided with a pressing means for pressing the door from the inside to the outside. The airtight structure of the door is characterized in that an abutting portion is provided near the packing to restrict the amount of movement of the door when the door is pressed by the door pressing means.

[0009]

[Action]

 As a result, the airtightness can be reliably maintained by the packing, and the door can be reliably positioned.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. The side entrance / exit door 1 is formed in a hat-shaped cross section in which a central portion 1a having substantially the same shape as the door opening portion 2a of the side plate 2 and a peripheral edge portion 1b thinner than the central portion 1a are integrally formed, and the guide rail ( It is movably suspended along the inner wall 2b of the side plate (not shown).

The door opening 2a of the side plate 2 is formed in a step shape in which the outside of the vehicle projects from the inside of the vehicle toward the inside of the door opening 2a, and when the door is closed, the peripheral portion 1b of the door 1 is closed. It becomes the door support part 2c which supports. Further, pressing cylinders 3 for pressing the peripheral edge portion 1b of the door 1 toward the door supporting portion 2c of the side plate 2 when the door is closed are provided at the upper portion, the central portion and the lower portion of the door opening portion 2a, two places on each side. There is.

The peripheral edge 1b of the door 1 is provided with an airtight packing 4 made of an elastic material such as rubber over the entire circumference, and in the vicinity of the packing 4 which is pressed by the pressing cylinder 3. A contact portion 5 made of a hard material for positioning the door 1 is provided so that the outer surface of the door 1 is flush with the outer surface 2d of the side plate 2 when the door is closed.

The door 1 formed as described above is guided from the open state shown by the imaginary line in FIG. 1 to the door opening 2 a by being guided by the guide rail, and is pressed by the six pressing cylinders 3. As a result, the packing 4 provided on the peripheral edge portion 1b of the door 1 and the door support portion 2c of the side plate 2 contact and press-fit. At this time, the door support portion 2c and the contact portion 5 provided on the peripheral portion 1b come into contact with each other, so that the door 1 is positioned so that the outer surface 1c thereof is flush with the outer surface 2d of the side plate 2. .

As described above, the airtightness and the positioning of the door 1 are performed by the packing 4 and the abutting portion 5, which are separate members, so that the elastic force of the packing 4 and the holding cylinder 3 can be set. The pressing force can be set easily. In addition, the packing 4 can be made of a conventionally softer material suitable for airtightness, and the airtightness can be improved.

Further, since the abutting portion 5 is made of a hard material, the door 1 can be pressed against the door supporting portion 2c of the side plate 2 more firmly than before, and the pressure inside and outside the vehicle body can be increased. The door 1 is prevented from rattling due to fluctuations, and the outer surface 1c of the door 1 and the outer surface 2d of the side plate 2 can always be kept flush with each other, and since the contact portion 5 is provided, the packing 4 is more than necessary. Since the packing 4 is not compressed, the durability of the packing 4 can be improved.

The packing and the abutting portion are not limited to those provided on the peripheral portion of the door, but may be provided on the door supporting portion of the side plate, and the position at which the abutting portion is provided is also limited to the above embodiment. Instead, it may be provided at a predetermined position depending on the size and structure of the door.

[0017]

[Effect of device]

 As described above, according to the present invention, the abutting portion that restricts the movement amount of the door that is moved by being pressed by the door pressing portion is provided in the vicinity of the packing that holds the side entrance door airtightly. It is easy to set the elastic force of and the pressing force of the presser cylinder, and it is possible to reliably hold and position the door.

In addition, the packing can be made of a material that is suitable for airtightness and is softer than conventional ones, so that the airtightness can be improved, and at the same time, the door is positioned by the abutting portion, so the packing is Is not compressed more than necessary, and durability can be improved.

Further, since the position of the door is held by the contact portion, the door and the outer surface of the vehicle body can be surely held flush with each other even if the atmospheric pressure changes inside and outside the vehicle body.

[Brief description of drawings]

FIG. 1 is a sectional view of an airtight structure of a side entrance / exit door showing an embodiment of the present invention.

[Fig. 2] Similarly, an enlarged view of the main part

[Fig. 3] Similarly, an explanatory view of the side entrance / exit door

[Explanation of symbols]

1 ... Side entrance / exit door, 1a ... central part, 1b ... peripheral part, 1c
... outer surface, 2 ... side plate, 2a ... door opening, 2b ... side plate inner wall,
2c ... door support, 2d ... outer side surface, 3 ... pressing cylinder, 4
... Packing, 5 ... Abutting part

Claims (1)

[Scope of utility model registration request] 1. An airtight structure for a side entrance / exit door of a railway vehicle, wherein packing is provided between a peripheral portion of the door and a door support portion of a side plate, and a pressing means for pressing the door from the inside to the outside is provided. An airtight structure for a side entrance / exit door of a railway vehicle, characterized in that an abutting portion for restricting a movement amount of the door moved by being pressed by the door pressing means is provided in the vicinity of the packing.