JPH0728380Y2 - Door opener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a door opening / closing device suitable for doors of factories, warehouses, houses, entrances of offices, garages, etc., where many vehicles come and go.

<Prior Art> Conventionally, sliding doors and double doors are widely used depending on the type of opening and closing.

The former requires a storage facility for door pockets, and the latter requires a large space with the width of the door as the radius when opening and closing in front of the door.

<Purpose> In view of the above-mentioned conventional drawbacks, the present invention has an object to provide a door opening and closing device that does not require a space in front of the door when opening and closing and can use the door as an eaves if necessary.

<Means for Solving Problems> The means for solving problems according to the present invention is a door 1 as shown in FIGS.
Of the guided element 2 provided in the lower part of the standing posture 1A of the above, a fixed frame 4 having a guide track 3 for guiding the guided element 2 in the vertical direction, and a rotary actuator installed above the fixed frame 4. 7
And an operating cord 8 which is hooked on the rotary actuating body 7 and whose one end 8a is fixed to the lower end of the door 1 and the other end 8b is fixed to the upper end of the door 1.

<Operation> In the above problem solving means, when the door opening / closing device is of an electric type, the operation switch is turned on to rotate the electric motor M. When the door opening / closing device is a manual type, remove the rotation stopper and then turn the rotation handle (not shown). Then, the guided element 2 of the door 1 in the closed posture A moves upward along the guide track 3,
The actuation rope 8 fixed to the upper end of the door 1 moves forward by the rotary actuating body 7 while supporting the outward leaning of the door 1 due to its own weight.

At this time, the locus of movement of the door 1 is A, B, C ...
... When moving with P, the position of the upper end of the door 1 is
It is determined corresponding to a, b, c ... p.

<Embodiment> Hereinafter, an embodiment of the present invention will be described with reference to the drawings. This device includes a roller or a shoe provided in the lower part of the plate (or the lattice-shaped door 1 in the standing posture 1A (closed posture)). Of the guided element 2 and a fixed frame 4 having a straight (or slightly curved) grooved steel guide track 3 for guiding the guided element 2 in the vertical direction (this is a pillar of the main building 5 or It may be a wall surface or a frame standing on the base 6), a rotary actuator 7 (sprocket or sheave) installed on the upper portion of the fixed frame 4, and the rotary actuator 7 Hung on one end
8a is provided at the lower end of the door 1 and the other end 8b is provided at the upper end of the door 1 with an actuation rope 8 of a certain length (rope wrapped around a chain or sheave).

Further, a stopper 9 for stopping and raising the door, which is attached to the upper end of the guide track 3 (this also serves as a stop switch when the rotary actuator 7 is operated by the electric motor M instead of manually), is provided. . In addition, as shown in FIG.
Instead of the stopper 9, a holding member 10 such as a rope of a certain length is provided between a part of the door 1 and the fixed frame 4 so as to hold the eaves posture 1B (open posture) of the door 1. May be.

In the figure, 11 is a transmission shaft that simultaneously rotates the left and right rotary actuators 7,
CG shows the center of gravity of door 1.

Next, the operation will be described. When the door opening / closing device is of an electric type, the operation switch is turned on to rotate the electric motor M. When the door opening / closing device is a manual type, remove the rotation stopper and then turn the rotation handle (not shown). Then, the guided element 2 of the door 1 in the closed posture A moves upward along the guide track 3, and the operation rope 8 fixed to the upper end of the door 1 supports the outward leaning of the door 1 due to its own weight. Meanwhile, the rotary actuator 7 moves forward.

At this time, the locus of movement of the door 1 is A, B, C ...
... When moving with P, the position of the upper end of the door 1 is
It is determined corresponding to a, b, c ... p. When the inclination of opening of the door 1 reaches an appropriate angle, the stopper 1 provided on the upper part of the guide track 3 and free of fixing or position adjustment is used.
The opening end posture B of is determined. At this time, the inner surface when the door 1 is closed becomes an eave having a roof surface.

Further, as shown in FIG. 3, the door 1 is at the P-p position (open end).
If a fixed rope-shaped holding material 10 that connects the main building 5 and the appropriate position (adjustable) of the door 1 is provided, the stop 9
Is unnecessary.

The closing action of the door 1 is the opposite of the above.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

<Effects of the Invention> As is apparent from the above description, the present invention has a guided element provided in the lower portion of the standing posture of the door, and a fixed frame having a guide track for guiding the guided element in the vertical direction. The rotating frame is provided on the upper part of the fixed frame, and the operating rope is attached to the rotating frame and has one end fixed to the lower end of the door and the other end fixed to the upper end of the door.

Therefore, the present invention has the excellent effects listed below.

(1) As can be seen in the locus of movement of the door in FIG. 1, the door opens and closes substantially vertically, and the door does not pass through the space in front of it, but rather passes through the upper front of the door. Goods do not interfere.

(2) Depending on the size of the door and the number of doors that can be opened and closed at the same time, manual or power opening and closing can be selected, and opening and closing of a large number of doors is also partially modified (such as extension of connection of the transmission shaft 11 in the embodiment) Can be done by

(3) When the rotation speed of the rotary operation body is constant, the door movement speed is small with the speed difference between the upper end and the lower end being small, so that the door can be opened and closed smoothly.

(4) When the door is plate-shaped, it can be used as an eaves during the daytime and as a door when the office is closed at night.

[Brief description of drawings]

FIG. 1 is a side view of the door opening / closing device of the present invention, FIG. 2 is a perspective view from the front side, and FIG. 3 is a perspective view from the front side in another embodiment. 1: Door, 1A: Standing posture, 1B: Erect posture, 2: Guided element, 3: Guide track, 4: Fixed frame, 7: Rotating actuating body, 8: Actuating rope, 8a: One end, 8b:
The other end.

Claims (1)

[Scope of utility model registration request] 1. A guided member provided in a lower portion of a standing posture of a door, a fixed frame having a guide track for guiding the guided member in a vertical direction, and a rotary actuating member installed on an upper portion of the fixed frame. A door opening and closing device comprising: a rotary actuating member, one end of which is attached to the rotary actuating member and the other end of which is attached to the lower end of the door and the other end of which is attached to the upper end of the door.