JPS61191421A - French doors opening and closing device for car - Google Patents

Abstract

PURPOSE:To improve work efficiency at checking by comprising the titled device with a mounting stand mounted on the lintel of a car, door interlocking mechanical part, and an air cylinder portion and removing the door interlocking mechanical part independently of the air cylinder portion. CONSTITUTION:A mounting stand 2 is fixed to a car body 1 in the lintel portion of a car with a screw 5 so as to freely be removed and a door interlocking mechanical part 3 and an air cylinder portion 4 are mounted on this mounting stand 2 so as to freely be removed. The interlocking mechanical part 3 consists of right and left pulleys 7b and 7a whose upper and lower parts are paired by support members 6a and 6b, first and second belts 8a and 8b wound around the upper and lower pulleys 7a and 7b, respectively, and first and second connecting rods 9a and 9b whose one end is connected and fixed to each of the belts 8a and 8b. In addition, while a piston rod 20 in the air cylinder portion 4 is connected to a connecting metal fitting 15 that is fixed to the upper end of one door 14a of French doors, the other end of the second connecting rod 9b is connected to a connecting rod 15b that is fixed to the upper end of the other door 14b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an opening/closing device for a double door for a vehicle such as a railway vehicle.

[Conventional technology]

As a prior art of this type, there is a switching device disclosed in Japanese Utility Model Publication No. 52-36328. As shown in FIGS. 2a, 2b, and 2c, this conventional opening/closing device includes a door interlocking mechanism section 3 attached to the vehicle body 1, and a door interlocking mechanism section 3 attached to the vehicle body l, in a lintel above the entrance/exit of the vehicle. The main structure is an air cylinder section 4 attached to the air cylinder section 3.

The interlocking mechanism 3 includes an endless belt 32 wound around two Boo'J-31a and 31b fixed at a predetermined distance to a mounting base 2 mounted on the vehicle body 1 through mounting holes 30a and 30b; Connecting fittings 15a, 15b whose respective one ends are connected and fixed by fittings 13a, 13b at positions in different moving directions of the V-belt 32, and whose respective other ends are separately fixed to the upper ends of the two 15iL4a, 14b. It consists of two connecting rods 33a and 33b connected to. The connections between the other ends of the two connecting rods 33a, 33b, the two connecting fittings and the two connecting fittings 15a, 15b are tightened and fixed with nuts 16a, 16b, and one end and the two connecting fittings 15a, 15b are tightened and fixed. The middle part of the other end is a bearing 3 protruding from the mounting base 2.
4a, 34b by penetrating the connecting rod 33a,
33b is stably supported.

The air cylinder section 4 includes a cylinder 18. Piston rod 2
0 and the brackets 35a attached to both ends of the cylinder 18
, 35b. Brackets 35a, 35
b, as shown in FIG. 2c, brackets 35a, 35
It is attached to the mounting base 2 by tightening the mounting poles 36a and 36b that penetrate through the mounting base 2, and is further supported by pedestals 2a and 2b that project from the mounting base 2 in an L-shape. Further, the tip of the piston rod 20 is connected and fixed to one of the connecting fittings 15a and a nut 19.

In such a conventional switchgear, the air cylinder section 4
By supplying pressurized air to the cylinder 18 of and pushing out the piston rod 20, one door 14a is closed to the other door 14b.
When moved in the opposite direction, the connecting fitting 15a fixed to the upper end of the door 14a.

The belt 32 also moves in the opposite direction to the other door 14b via the connecting rod 33a. On the other hand, since the other connecting rod 33b fixed to this belt 32 moves in the direction of the other door 14b, the connecting fitting 15b tightened and fixed to this connecting rod 33b also moves in the same direction, and the other connecting rod 33b moves in the direction of the other door 14b. is moved in the opposite direction to one door 14a to open the entrance/exit.

At the time of maintenance and inspection, only the air cylinder section 4 is removed from the mount 2, the cylinder 18 is disassembled and the inside is cleaned, and then reassembled and then attached to the mount 2 as before. The door interlocking mechanism 3 can be inspected from the outside while attached to the vehicle body 1, and is normally not removed from the vehicle body.

[Problem that the invention seeks to solve]

However, the connecting rods, belts, etc. that make up the interlocking mechanism of the door cannot be used forever, and may need to be replaced due to wear or damage, especially when trying to find small scratches during inspection. It is important to remove it from the vehicle body and check it. In order to inspect the interlocking mechanism of such a door, you must first remove the air cylinder section, and in addition, since the connecting rod penetrates into the bearing of the mounting base, There is a problem in that the work efficiency is extremely low, such as having to pull out the connecting rod within the small space of the lintel.

[Means for solving problems]

This invention has been made in view of the above circumstances, and its specific technical means include a mounting base attached to the lintel of a vehicle, an interlocking mechanism for the door attached to the mounting base, and an air cylinder unit. An opening/closing device for a double door for a vehicle, wherein the interlocking mechanism section of the door includes a pair of upper and lower pulleys that are rotatable in the horizontal direction and are spaced apart at a predetermined interval from a support member that is removably fixed to the mounting base. two pairs of pulleys installed in an open manner, a first belt wound around the pulleys above each other among the pulleys of each pair, a second belt wound around the pulleys below each other, and these first and second belts. A first connecting rod having one end fixed to the door, the other end connected to one door via a connecting fitting, and the intermediate portion interposed between the two upper and lower pulleys, and one end of this connecting rod is fixed. One end portion is fixed to the position of the first belt and the second belt that move in a direction different from the moving direction of the first belt and the second belt, and the other end portion is connected to the other door via a connecting fitting. The second part is interposed between the upper and lower pulleys
The air cylinder section is composed of a connecting rod, and the air cylinder section includes a cylinder that is removably installed in parallel with the interlocking mechanism section of the door on the mounting base, and a piston whose tip is fixed to one of the connecting fittings of the interlocking mechanism section of the door. It consists of a stick.

[For production]

According to such technical means, when opening the entrance/exit of a vehicle, pressurized air is supplied to the cylinder of the air cylinder section to extend the cylinder rod and move one door in the opposite direction to the other door. , a first connecting rod that is connected to the one door via a connecting fitting, and a first belt and a second belt that 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 position where the first belt and the second belt move in different directions moves in the opposite direction to the first connecting rod, it is connected to the second connecting rod via a connecting fitting. The other door that is open will move in the opposite direction to the one door, and as a result, the two doors will move away from each other, and the entrance/exit will be opened. When closing the entrance/exit, pressurized air is supplied to the cylinder in the air cylinder section from the opposite direction to contract the cylinder rod, and the two doors move toward each other in the opposite direction to the above, closing the entrance/exit. will be closed.

During such opening and closing operations, the first connecting rod and the second connecting rod are guided between two upper and lower pulleys.

Furthermore, since the interlocking mechanism section and the cylinder section of the door are separately and removably attached to the mounting base, they can be removed independently.

〔Example〕

A specific embodiment of the present invention will be described below with reference to FIGS. 1a and 1b.

The opening/closing device for a double door for a vehicle of this embodiment consists of a mounting base 2 attached to a vehicle body 1 in a lintel of a vehicle, a door interlocking mechanism part 3 and an air cylinder part 4 removably attached to the mounting base 2. configured.

The mounting base 2 is removably fixed to the vehicle body 1 with screws 5.

The interlocking mechanism section 3 of the door includes two support members 6a.

6b, upper and lower two pulleys 7a and 7b provided on these two support members 5a and 13b, and a first bell 8a wound around these upper two pulleys 7a and 7b, respectively.
second belt) 8b and these first and second belts 8a+
It consists of a first connecting rod 9a and a second connecting rod 9b, one end of which is connected and fixed to sb. The two supporting members 5a and 5b are fixed to the mounting base 2 with screws 10 at a predetermined interval. The side surface is U-shaped, and both ends of a rotating shaft 12 are rotatably supported by the two upper and lower supporting pieces 11a and llb, and the rotating shaft 12 is supported horizontally at a predetermined distance. Two pulleys 7a and 7b that rotate are fixed above and below. Then, the two supporting members 5a, 5
An endless first belt 8a wound around the pulleys 7a above each of the pulleys 7a above each
An endless second belt 8b is provided. These first bell) 8a and second bell 1-8b have two upper and lower pulleys 7a and 7b provided on the two support members 5a and 5b, respectively, which share the same rotating shaft 12, and a first connecting rod 9a that connects both bells) 8a. , 8b, so they always move in the same direction at a constant speed. Moreover, in the movement position of these two first belts) [1 and second belt 8b in one direction,
One end side of the first connecting rod 9a is connected and fixed by a joint fitting 13a, and the other end side of the first connecting rod 9a is connected by a naso) 16a to the upper end of a connecting fitting 15a fixed to the upper end of one door 14a. . The intermediate portion between one end and the other end of the first connecting keychain 9a is interposed between the two upper and lower pulleys 7a and 7b of one of the two supporting members 6a. Similarly, at the position where the first belt 8a and the second belt 8b are moved in the other direction, one end of the second connecting rod 9b is connected and fixed by a joint fitting 13b, and the other end of the first connecting rod 9a is fixed. The side is connected by a nut 16b to the upper end of a connecting fitting 15b fixed to the upper end of the other door 14b.

The intermediate portion between one end and the other end of the second connecting rod 9b is connected to the upper and lower pulleys 7a, 7 of the two support members.
It is interposed between b.

The air cylinder section 4 includes a cylinder 18 attached to the mounting base 2 by a mounting bracket 17 in a direction parallel to the first belt 8a and the second belt 8b, and the interlocking mechanism section 3 of the door.
It consists of a cylinder rod 20 whose tip end is fixed to one of the connecting fittings 15a by a napht 19. Said mounting bracket 17
is removably attached to the mounting bracket 1 with bolts 21.

In this embodiment, the air cylinder section 4 is attached above the interlocking mechanism section 3 of the door, but it may also be attached below.

To explain the operation of this embodiment having such a configuration, first, when pressurized air is supplied to the cylinder 18 of the air cylinder section 4 and the cylinder rod 20 is extended, the cylinder rod 20 is connected to the tip of the cylinder rod 20. One connecting fitting 15
One door 14a moves in the opposite direction to the other door 14b via a.

At the same time, the first
Joint fittings for the connecting rod 9a and the first connecting rod 9a], 3
The first belt 8a and the second belt 8b are connected and fixed at a.
also move in the same direction. On the other hand, the second connecting rod 9b, which is connected and fixed to the first belt 8a and the second belt 8b by a joint fitting 13b, moves in the opposite direction to the first connecting rod 9a, so it is connected to the second connecting rod 9b. The other door 14b, which is fixed via the metal fitting 15b, moves in the opposite direction to the one door 14a, and in the end, the two doors 14a,
14b move in directions away from each other to open the entrance/exit.

When closing the entrance/exit, it is sufficient to simply move one door 14a toward the other door 14b using the cylinder rod 20, 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 9a and the second connecting rod 9b is guided by the two upper and lower pulleys 7a, 7b and the rotating shaft 12. The moving direction of the rod 9a and the second connecting rod 9b and the two upper and lower pulleys 7a, 7 that guide them.
b and the tangential direction of the rotating shaft 12 are always the same, so
Frictional resistance is extremely low, so the upper and lower pulleys 7a.

7b and the durability of the first and second connecting rods 9a and 9b are not affected at all.

Next, during maintenance and inspection, the first and second connecting rods 9a and 9b and the first and second belts 8 that constitute the interlocking mechanism section 3 of the door are
When it becomes necessary to remove and replace the two support members 6a and 8b, they can be removed completely independently of the air cylinder section 4 by loosening and removing the screws 5 that attach the two support members 6a and 6b to the mounting base 2. be able to.

〔Effect of the invention〕

As is clear from the above description, according to the vehicle double door opening/closing device of the present invention, the interlocking mechanism section of the door can be removed independently of the air cylinder section, so that work efficiency during inspection can be improved. be able to. Furthermore, since the intermediate portions of the first connecting rod and the second connecting rod are guided by being interposed between the two upper and lower pulleys provided on the two support members, the first connecting rod and the second connecting rod are can be easily removed, further improving work efficiency.

[Brief explanation of drawings]

FIGS. 1a to 1c show embodiments of the invention, and the first
Figure a is a partially omitted plan view, Figure 1b is a partially omitted front view, Figure 1c is a sectional view taken along the line C-C of Figure 1b, and Figures 2a to 2.
Fig. C shows the prior art, Fig. 2a is a partially omitted plan view, Fig. 2b is a partially omitted front view, and Fig. 2C is a diagram taken along D-D of Fig. 2b.
A line cross-sectional view is shown. 1--Vehicle body, 2-Mounting base, 3-Door interlocking mechanism, 4-
Air cylinder, 5a, 5b - support member 7a
7b--pulley, 8a-first belt, 8b,-second belt, 9a--first connecting rod, 9b--second connecting rod, 14a, 14tl-part, 15a, 15b-- 1 connection fitting, 18- cylinder, 19- piston rod.

Claims (1)

[Claims] (1) An opening/closing device for a double door for a vehicle consisting of a mounting base attached to a lintel of a vehicle, a door interlocking mechanism attached to the mounting base, and an air cylinder section, wherein the interlocking mechanism section of the door is Two pairs of horizontally rotatable pulleys, upper and lower pulleys, are mounted at a predetermined interval on a support member removably fixed to a mounting base; A wound first belt and a second belt wound around a pulley below each other, one end of which is fixed to the first belt and the second belt, and the other end is connected to one door via a connecting fitting. a first connecting rod whose intermediate portion is interposed between the two upper and lower pulleys; a first belt that moves in a direction different from the moving direction of the first and second belts to which one end of the connecting rod is fixed; The air cylinder comprises a second connecting rod having one end fixed to the position of the second belt, the other end connected to the other door via a connecting fitting, and the middle part interposed between the two upper and lower pulleys. The part is characterized by comprising a cylinder removably arranged in parallel to the interlocking mechanism part of the door on the mounting base, and a piston rod whose tip is fixed to one of the connecting fittings of the interlocking mechanism part of the door. Opening/closing device for vehicle double doors.