JPH039494Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an interlocking device for double doors for getting on and off a vehicle such as a railway vehicle.

[Conventional technology]

As a conventional technology of this type,
There is an interlocking device disclosed in Publication No. 47798. As shown in FIG. 2, this conventional interlocking device consists of two supporting metal fittings 20 that are removably fixed to the vehicle body at a predetermined distance in the lintel above the entrance of the vehicle.
a, 20b and the two support fittings 20a, 20b
two pulleys 6a and 6b rotatably supported by the two pulleys 6a and 6b, an endless belt 7 wound around the two pulleys 6a and 6b, and one end of each of the belts 7 at positions in different moving directions. Connect and fix with belt clamps 9a and 9b, and connect the other ends of each with 2
It consists of two connecting rods 8a, 8b connected to arms 11a, 11b which are separately fixed to the upper ends of two doors 10a, 10b. These two connecting rods 8a,
8b and the two arms 11a,
11b is tightened and fixed by nuts 12a, 12b, and the intermediate portion between one end and the other end is connected by passing through bearings 21a, 21b protruding from the support fittings 20a, 20b. The connecting rods 8a and 8b are stably supported by the lever.

In such a conventional interlocking device, when one door 10a is moved in the opposite direction to the other door 10b manually or by a drive device not shown, the door 10a is moved in the opposite direction to the other door 10b.
The belt 7 also moves in the opposite direction to the other door 10b, as shown by the arrow, via the arm 11a fixed to the upper end of the door 10a and the connecting rod 8a. On the other hand, since the other connecting rod 8b connected and fixed to this belt 7 moves in the direction of the other door 10b, the arm 11b tightened and fixed to this connecting rod 8b also moves in the same direction and connects to the other door. 10b is moved in the opposite direction to one door 10a to open the entrance/exit.

[Problem that the invention attempts to solve]

Generally, the lintel of a vehicle that houses the door interlocking device is located above the vehicle body, and the space within the lintel is very narrow. For this reason, since it is difficult to attach and remove this interlocking device, it is required that the interlocking device be made as small as possible. In particular, since there is a limit to the height of a vehicle, it is desirable that the length in the height direction be as short as possible. or,
When performing maintenance and inspection of the interlocking device, it is required from the viewpoint of improving work efficiency that each component such as the connecting rod can be easily removed individually.

However, in the above-mentioned conventional interlocking device,
Since the two pulleys are installed on the car body so that they rotate vertically, the length in the height direction increases by the diameter, and the belt that is wound around these two pulleys is parallel to the vertical position. Since two connecting rods are arranged in each case, there is a problem that the length in the height direction becomes even larger. Furthermore, since the connecting rod passes through the bearing, when removing the connecting rod for maintenance and inspection, the connecting rod must be pulled out inside the lintel or the entire interlocking device must be removed from the vehicle body. In either case, there is a problem that the workability deteriorates.

[Means for solving problems]

This idea was made in view of the above circumstances, and its specific technical means is to attach a pair of upper and lower pulleys that can rotate horizontally to the lintel of a vehicle with a predetermined gap between them. two pairs of pulleys, a first belt wound around a pulley above each other among the pulleys of each pair, and a second belt wound around a pulley below each other, and the first belt and the second belt. a first connecting rod having one end fixed to the inner circumferential surface of the door, an intermediate portion interposed between two upper and lower pulleys, and the other end connected to one door via an arm; One end of the connecting rod is fixed to the inner circumferential surface side of the first belt and the second belt facing the first belt and the second belt, and the intermediate part is connected to the other two upper and lower pulleys. A second connecting rod is interposed between the two doors and has its other end connected to the other door via an arm.

[Effect]

According to the above technical means, when one door is moved in the opposite direction to the other door manually or by a drive device (not shown), the first connecting rod connected to the one door via the arm and the The first belt and the second belt, which are connected and fixed to the first connecting rod, also move in the same direction. On the other hand, since the second connecting rod connected to the first belt and the second belt moves in the opposite direction to the first connecting rod, the other door fixed to the second connecting rod via the arm The door will move in the opposite direction, and eventually the two doors will move away from each other to open the entrance. When closing the entrance/exit, it is sufficient to simply move one door toward the other door, contrary to the above. During such opening and closing operations, the first connecting rod and the second connecting rod are guided between two upper and lower pulleys that are horizontally rotatably fixed to two supporting members at a predetermined distance. Since the pulley is provided horizontally, the length in the height direction can be suppressed, and one end of both connecting rods is fixed to the inner peripheral surface side of the two first and second belts, and the middle Since the structure is such that one end is interposed between the two upper and lower pulleys and the other end is connected to the door, it is possible to reduce the burden of tensile force on each belt and suppress the width and thickness of the belt. Since the rod does not protrude in the depth direction, the length in the depth direction can be reduced accordingly.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1a and 1b.

The interlocking device for a double door for a vehicle of this embodiment is used by being attached to a lintel above the entrance/exit of a vehicle, and the vehicle body 1 constituting the lintel includes:
Two support members 2a, 2 that support this interlocking device
b are fixed with screws 3 at predetermined intervals.
These supporting members 2a, 2b have U-shaped side surfaces, and both ends of a rotating shaft 5 are rotatably supported by the upper and lower supporting pieces 4, and this rotating shaft 5
Two pulleys 6a and 6b that rotate horizontally with a predetermined distance apart are fixed above and below. An endless first belt 7a is provided which is wound around the upper pulley 6a of each of the two support members 2a and 2b, and an endless second belt 7b is wound around the lower pulley 6b of each of the two supporting members 2a and 2b. ing. These first belt 7a and second belt 7b are
The two upper and lower pulleys 6a and 6b provided on the two support members 2a and 2b, respectively, have the same rotating shaft 5, and a first connecting rod 8a, which will be described later, is connected and fixed to both belts 7a and 7b, so that they are always rotated in the same direction. move at constant speed. Further, at the position where these two first belts 7a and second belts 7b are moved in one direction, one end of a first connecting rod 8a is connected and fixed with a belt clamp 9a, and the first connecting rod 8a is connected and fixed with a belt clamp 9a. The other end is one door 1
It is connected to the upper end of arm 11a fixed to the upper end of Oa by a nut 12a. The intermediate portion between one end and the other end of the first connecting rod 8a is interposed between the two upper and lower pulleys 6a and 6b of one of the two supporting members 2a. Similarly, the first belt 7a and the second belt 7
In the moving position in the other direction b, the second connecting rod 8b
One end side is fixed by a belt clamp 9b, and the other end side of the first connecting rod 8a is connected by a nut 12b to the upper end of an arm 11b fixed to the upper end of the other door 10b. The intermediate portion between one end and the other end of the second connecting rod 8b is interposed between the two upper and lower pulleys 6a and 6b of the other support member 2b of the two support members.

To explain the operation of this embodiment having such a configuration, first, when one door 10a is moved in the opposite direction to the other door 10b manually or by a drive device not shown, the door 10a and The first connecting rod 8a connected via the arm 11a and the first belt 7a and second belt 7b connected and fixed to the first connecting rod 8a with belt clamps 9a also move in the same direction. On the other hand, a second belt is connected and fixed to the first belt 7a and the second belt 7b with a belt clamp 9b.
Since the connecting rod 8b moves in the opposite direction to the first connecting rod 8a, the arm 1 is attached to the second connecting rod 8b.
The other door 10b, which is fixed via the door 1b, moves in the opposite direction to the one door 10a, and eventually the two doors 10a and 10b move away from each other to open the entrance/exit. do.

When closing the entrance/exit, it is sufficient to simply move one door 10a toward the other door 10b, contrary to the case of opening. The operation in this case is simply that the direction of movement is opposite to that in the case of opening, so a description of the operation will be omitted.

During the operation of opening and closing the entrance/exit, the movement of the first connecting rod 8a and the second connecting rod 8b is guided by the two upper and lower pulleys 6a, 6b and the rotating shaft 5. Since the moving direction of the connecting rod 8a and the second connecting rod 8b and the tangential direction of rotation of the two upper and lower pulleys 6a, 6b and the rotating shaft 5 that guide them are always the same, the frictional resistance is extremely small. two upper and lower pulleys 6
This does not affect the durability of a, 6b or the first and second connecting rods 8a, 8b at all.

[Effect of idea]

As is clear from the above explanation, this invention not only provides the same opening/closing operation as the conventional technology, but also allows the upper and lower pulleys provided on the support member to be horizontally rotatable. Because of this structure, the length in the height direction is shorter compared to the conventional technology which is configured to be freely rotatable in the vertical direction, so the interlocking device can be made smaller in the height direction by that much. becomes possible. Furthermore, the first
One end of the second connecting rod is fixed to the inner peripheral surface side of the first and second belts, and the middle part is interposed between the two upper and lower pulleys, and the other end is connected to the door. The burden of tensile force on each belt can be reduced to reduce the width and thickness of the belt, and the connecting rod does not protrude outward from the first and second belts.
a, 21b (FIG. 2) are no longer necessary, and the size in the depth direction can be reduced accordingly. Furthermore, even if it is necessary to remove the first or second connecting rod during maintenance and inspection, the bearings 21a,
Since there is no 21b, it can be easily removed and work efficiency is significantly improved.

[Brief explanation of the drawing]

1a and 1b show an embodiment of this invention, FIG. 1a is a partially omitted plan view, FIG. 1b is a partially omitted front view, and FIG. 2 is a partially omitted front view of the prior art. . 1...Vehicle body, 2...Supporting member, 6a, 6b...
Pulley, 7a...first belt, 7b...second belt, 8a...first connecting rod, 8b...second connecting rod, 10a, 10b...door, 11a, 11b...
arm.

Claims (1)

[Scope of utility model registration request] A pair of upper and lower pulleys that are horizontally rotatable and are attached to the lintel of the vehicle with a predetermined gap between them; A belt and a second belt wound around a pulley below each other, one end of which is fixed to the inner peripheral surface side of the first belt and the second belt, and the middle part is fixed to one of the upper and lower two belts.
A first connecting rod that is interposed between two pulleys and has its other end connected to one door via an arm, and faces the first belt and second belt to which one end of the first connecting rod is fixed. the first belt and the second belt in the position
Consisting of a second connecting rod, one end of which is fixed to the inner peripheral surface of the belt, the middle part of which is interposed between two upper and lower pulleys, and the other end of which is connected to the other door via an arm. An interlocking device for vehicle double doors, which is characterized by: