JPH0743415Y2 - Fan door opener - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan-type door opening / closing device used for entrance gates, platform fall prevention doors, and the like.

[0002]

2. Description of the Related Art As shown in FIG. 5, some automatic doors are mounted on a building, and as shown in FIGS. 6 and 7, some automatic doors are installed outdoors such as a front door. Among them, the one that is attached to the building as shown in FIG. 5 has a slide door 16 hung on an upper rail 11 inside the seamless frame 10 via a suspension vehicle 14 and a suspension frame 15 so that both ends inside the seamless frame 10 can be suspended. The belt 20 hung between the pulleys 19 and 19 of the
And is opened and closed along the deadlock doors 17, 17. In addition, in order to prevent the slide door 16 from swinging due to wind or the like, a lower end portion of the slide door 16 is loosely fitted to a lower rail 13 provided on the floor surface 12.

The structure shown in FIG. 6 has gate posts 21 and 2 on both sides.
1 is provided with a drive device 18 and a drive shaft 23, and a swing door 24 is attached to the drive shaft 23 so as to open and close by swinging. In the one shown in FIG. 7, a slide door 16 is provided in a door pocket 25 so as to be movable back and forth, and the slide door 16 is driven by a drive device 18 inside the door pocket 25
The door roller 27 is moved to the other gate post 21 along the lower rail 13 provided on the concrete surface 28 to open and close it.

[0004]

The one shown in FIG. 5 is often seen as an automatic door inside a building, but it cannot be used outdoors. In addition, even if it is indoors, it cannot be used even when the ceiling is too high, such as the platform of a station. Although the one shown in FIG. 6 is often used for outdoor gates, etc., it requires an extra space for the swing door 24 to swing 90 degrees or 180 degrees, so that it can be used in a narrow place such as a station platform. Cannot be adopted. The one shown in FIG. 7 is adopted in some Shinkansen platforms, but there is a problem that it is extremely dangerous to trip over because the lower rail 13 for moving the door roller 27 is required.

It is an object of the present invention to provide an automatic door which can be easily installed even in a narrow place and does not require mounting of rails or the like on the floor surface 12 or the concrete surface 28.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a drive shaft is provided at an essential part of a fan-shaped door, and the drive shaft is connected to a drive device so that the fan-shaped door can be moved back and forth in a door pocket. It is a characteristic fan-shaped door opening / closing device.

[0007]

When the drive device is normally or reversely rotated, the fan-shaped door attached to the drive shaft is moved back and forth from the door pocket to be opened and closed. At this time, the fan-shaped door can be opened and closed smoothly without a rail, and there is no fear of tripping.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 2, 28 is a concrete surface on which an automatic door is to be installed, and is, for example, a platform or entrance of a station. This concrete surface 28
The door pockets 25, 2 on both sides with a space of about 2M.
Install 5. Drive devices 18 and 18 are mounted inside the door pockets 25 and 25, respectively. The drive device 18 includes a motor 32, a speed reducer 31, and a drive shaft 23.
The drive shaft 23 is rotatably attached to the fan-shaped door 3
0 is attached. That is, since the essential part of the fan-shaped door 30 is located above the door pocket 25, the fan-shaped door 30 projects outward from the door bag 25 as shown by a solid line by the forward rotation of the motor 32, and reversely rotates by the motor 32. By being housed inside 25, it opens and closes like a pendulum.

The speed reducer 31 may be composed of, for example, only gears or a rack and a pinion. Also,
It may be a combination of a sprocket and a chain, a combination of a V belt and a pulley, or the like.

In the example shown in FIG. 3, the essential part of the fan-shaped door 30 is located under the door pocket 25, so that the motor 3
The fan-shaped door 30 projects outward from the door pocket 25 as indicated by the solid line by the forward rotation of 2 and is housed inside the door pocket 25 by the reverse rotation of the motor 32 to open and close like a metronome.

In the example of FIGS. 1 and 3, the pair of left and right fan-shaped doors 30 and the fan-shaped doors 30 are rotated in opposite directions so as to be opened and closed. However, as shown in FIG. The essential part may be located at the upper part of the door pocket 25, and the essential part of the other fan-shaped door 30 may be located at the lower part of the door pocket 25, and may be opened and closed by rotating in opposite directions.

[0012]

According to the present invention, a drive shaft is provided at a main part of a fan-shaped door, and the drive shaft is connected to a drive device so that the fan-shaped door can be moved back and forth in a door pocket, so that it can be installed in a narrow space. It is easy to install, and there are no rails in the passage that opens and closes the fan door, so there is no risk of tripping.

[Brief description of drawings]

FIG. 1 is a front view of a first embodiment of a fan-shaped door opening / closing device according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of a second embodiment of a fan-shaped door opening / closing device according to the present invention.

FIG. 4 is a front view of a fan door opening / closing device according to a third embodiment of the present invention.

FIG. 5 is a front view of a conventional indoor automatic door.

FIG. 6 is a front view of a conventional outdoor automatic door.

FIG. 7 is a front view of a conventional automatic door for a Shinkansen platform.

[Explanation of symbols]

10 ... No eye, 11 ... Upper rail, 12 ... Floor surface, 13 ... Lower rail, 14 ... Suspension car, 15 ... Suspension frame, 16 ... Sliding door, 17 ... Fitting kill door, 18 ... Drive device, 19 ...
Pulley, 20 ... Belt, 21 ... Gate post, 23 ... Drive shaft, 2
4 ... Swing door, 25 ... Door pocket, 27 ... Door car, 28 ... Concrete surface, 30 ... Fan-shaped door, 31 ... Reducer, 32 ...
motor.

Claims (4)

[Scope of utility model registration request] 1. An opening and closing of a fan-shaped door, characterized in that a drive shaft is provided at an essential part of the fan-shaped door, and the drive shaft is connected to a drive device so that the fan-shaped door can be moved back and forth in a door pocket. apparatus. 2. A pair of left and right fan-shaped doors are set as one set, and the drive shafts of the respective fan-shaped doors are rotatably supported by the upper portions of the respective door pockets so as to rotate in different directions to open and close. 1. A fan-shaped door opening / closing device according to 1. 3. A pair of left and right fan-shaped doors is set as one set, and the drive shafts of the respective fan-shaped doors are rotatably supported by the lower portions of the respective door pockets so that they rotate in different directions to open and close. 1. A fan-shaped door opening / closing device according to 1. 4. A pair of left and right fan-shaped doors is set as one set, and a drive shaft of one fan-shaped door is pivotally supported at an upper portion of the door pocket,
2. The fan-shaped door opening / closing device according to claim 1, wherein a drive shaft of the other fan-shaped door is pivotally supported at a lower portion of the door pocket and is rotated in the same direction to open and close.