Opening/closing device of door for rolling stock

Abstract

A door opening and closing device for a railway vehicle is provided to obtain slide stroke of a door body and to make the device small by passing a connecting member adjacent to a driving pulley through an axial front side of a motor in opening and closing a door.A door opening and closing device for a railway vehicle has an extension guide member(70) for guiding each door body(10A,10B) in the opening and closing direction of doors. The extension guide member is composed of a guide member for the vehicle(71) extended in the correspondent opening and closing direction and fixed to the vehicle; a guide member for the door extended in the same opening and closing direction and fixed to each door body; and a slide mechanism for connecting the guide members for both the vehicle and the door to slide in the longitudinal direction. The guide member for the vehicle is disposed right on an entrance(80) opened and closed by both door bodies.

Description

technical field [0001] The present invention relates to an opening and closing device for opening and closing doors provided on left and right door bodies of a railway vehicle by electric motors. Background technique [0002] In the past, as a device for opening and closing the doors of railway vehicles, fluid pressure devices such as air pressure were generally used as the driving source. The development of drive units is flourishing day by day. [0003] As an example, an apparatus for driving a sliding door that is opened and closed by sliding the left and right door bodies in opposite directions relative to each other is shown in FIG. 13 . The drive device 102 in the figure is provided above the left and right door bodies 100A, 100B, and forms a device using a flexible belt transmission mechanism. [0004] Specifically, there is a driving pulley 104 and a driven pulley 106 separated from each other in the door opening and closing direction, and a belt 108 spanning betwe...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned belt reducer motor 120 has a very large reducer 124, and the motor main body 122 together with the driving pulley 104 is a structure that protrudes from the reducer 124 to the front side greatly, thereby having the following inconveniences. 120 needs to increase the space; in order to avoid the mutual interference between the motor with decelerator 120 and the connecting parts (especially the connecting part 110A connected to the right side door body 100A close to the motor with decelerator 120), the design is obviously restricted, resulting in Overall upsizing of the entire device

[0009] For example, on the one hand, the distance between the driving pulley 104 and the driven pulley 106 should be reduced as much as possible for the overall miniaturization of the device; Each connection member 110A, 110B is extended in the door opening and closing direction, and each door side connection part 114, 118 moves to the outer position of the motor 120 with a speed reducer and the driven pulley 106 respectively, but when it moves, the above-mentioned connection is not made. The door side connecting portion 114 and the intermediate connecting portion 113 of the component 110A interfere with the large motor 120 with a speed reducer. The positions of the connecting part 114 and the motor with reducer 120 are staggered up and down, and the existence of the staggered part causes the inappropriate increase of the overall height of the device

[0010] Also, as a device that does not increase the height of the device and avoids the above-mentioned interference, it is also conceivable to make the above-mentioned connecting member 110A, such as the middle connecting part 113 and the door-side connecting part 114, protrude to the front side (toward the reader's side in the figure), and the two The connecting parts 113 and 114 are provided with the connecting member 110A through the front side of the motor with a reducer 120, but since the motor with a reducer 120 has a shape in which the motor main body 122 protrudes farther to the front from the reducer 124, it is To prevent the motor main body 122 from interfering with the connecting part 110A, the connecting parts 113, 114 must protrude considerably to the front side, which causes the inconvenience of increasing the depth of this part of the device (the size in the front-rear direction)

Especially in the case of door opening and closing devices for railway vehicles, because there are many covers and inspection covers on the front and rear (inside and outside of the axle), once the depth dimension is increased, the inside of the above-mentioned cover inspection covers cannot accommodate the entire device.

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