JPH08226290A - Airtight door - Google Patents

Abstract

PURPOSE: To obtain an airtight door, in which a door panel is moved easily and there is no trouble on strength and which has a simple structure, by a method wherein the door panel is borne obliquely to a truck, the truck is brought near to a wall, and the door panel is revolved and pushed against a wall opening section. CONSTITUTION: A door panel 8 is borne obliquely to a truck 1, the truck 1 is moved and brought near to the opening section W1 of a wall W, and a fulcrum shaft 6, on which the door panel 8 is fixed, is placed in parallel with the wall W. An opening-closing handle is rotated, the door panel 8 is tuned in the counterclockwise direction while the truck 1 is shifted to the wall W side, and the lower edge section of the door panel 8 is dropped to a floor F. The door panel 8 is further revolved, the truck 1 is further moved, and the door panel 8 is erected and pushed against the opening section W1 . Packings 9, 9 are fitted to adhesive sections to the opening section W1 of the door panel 8 and the floor F at that time, and airtightness is kept. A truck stopper 3 is applied, and the truck 1 is fixed onto the floor F by a floor fixing frame 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airtight door that hermetically closes a wall opening or a door frame of a building.

[0002]

2. Description of the Related Art To secure airtightness with a building door,
There are the following: (1) Close the door panels that are open to the left and right and press them. (2) Drop the door panel pulled from the side vertically and then press it. (3) Press the door panel that has stood up from the front.

The conventional door is closed and pressed in order to press it.
It is a type that can be closed with the door panel standing upright.

Therefore, hinges and hinges in the case of an open door are used only vertically. In this kind of thing,
When the lower frame of the door frame was not provided, it tended to be mechanically complicated.

That is, in order to drop the door panel, there are methods such as dropping the door panel while rotating it, dropping it by its own weight, dropping it electrically, and dropping only the sheathed portion under the door panel.

In order to press the door panel, there are methods such as Gremon, roller tightening, and cam shaft.

[0007]

When the door is made airtight and there is no lower frame of the door, only the following methods have been conventionally considered.

(1) Sound-insulating doors, etc. that utilize gravidies that are pressed down while dropping the door panel. (2) Dropping it while closing it and pressing it ... Heat-proof doors such as refrigerators. (3) Close it, press it, and then drop it ... Doors that use zero hardware. This method requires a pressing function and a dropping function, which is structurally complicated.

In the case of a large door, the door panel is heavy,
There is a problem with the movement and strength of the hinge. SUMMARY OF THE INVENTION It is an object of the present invention to provide an airtight door whose door panel can be easily moved, has no problem in the strength of hinges and the like, and has a simple structure.

[0010]

According to the present invention, a fulcrum shaft parallel and horizontal to a wall opening or a door frame, a door panel fixed to the fulcrum shaft, and the wall opening portion of the door panel or Packing provided in a sealed portion with the door frame, moving pressing means for moving and pressing the door panel, swiveling means for swiveling, and fixing means for fixing at one position are provided.

The moving and pressing means is preferably constituted by a carriage, a traverse carriage and a slide mechanism provided on the traverse carriage, or a flip-up mechanism composed of two arms and springs for accommodating the door panel in the recess of the floor.

Further, it is preferable that the turning means comprises an opening / closing handle of a fulcrum shaft or a flip-up mechanism.

The fixing means preferably comprises a floor fixing hook provided on the truck.

[0014]

In the airtight door configured as described above, for example, in the transverse carriage, the door panel is moved to the wall opening,
After turning to drop the door panel and fixing the truck to the floor, the door panel is pressed against the wall opening by the slide mechanism.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, two pairs of wheels 2 of the truck 1 are provided with truck stoppers 3 and floor fixing hooks 4 for fixing the truck 1 to the floor F. This dolly 1
A fulcrum shaft support frame 5 is erected on the upper surface of the frame, and a horizontal fulcrum shaft 6 is rotatably provided on the top of the frame 5 so that it can be rotated by an opening / closing handle (not shown). A door panel 8 is attached to the fulcrum shaft 6 via an arm 7. Building wall W of this door panel 8
A packing 9 is provided at the contact portion between the opening W1 and the floor F.

Next, a mode in which the opening W1 is closed airtightly by the door panel 8 will be described with reference to FIGS.

The trolley 1 which obliquely supports the door panel 8 approaches the opening W1 and the fulcrum shaft 6 is positioned parallel to the wall W (FIG. 2).

Then, the opening / closing handle is turned to open the door panel 8
While turning in a counterclockwise direction, the carriage 1 is moved to the wall W side as shown by the arrow, and the lower edge portion of the door panel 8 is dropped onto the floor F (FIG. 3).

Next, the door panel 8 is turned, the carriage 1 is moved in the direction of the arrow, and the door panel 8 is erected and pressed against the opening W1 (FIG. 4).

Finally, the carriage stopper 3 is applied, and the carriage 1 is fixed to the floor F by the floor fixing hook 4 (FIG. 5).

FIGS. 6 and 7 show another embodiment of the present invention in which the carriage 1 is traversed on a pair of rails 10 parallel to the wall W, and the fulcrum shaft support frame 5A is directed toward the carriage 1A in the wall A direction. This is an example in which the door panel 8 is slidably attached to the opening W1. The slide mechanism is
A gear 12 pivotally supported by the frame 5A and rotated by a slide handle 11, and a frame 5A meshed with the gear 12
A pair of gears 13 supported on the
3 and a rack 14 fixed to the meshing carriage 1A. In the figure, reference numeral 15 is a panel fixing hook when the door panel 8 is moved, 16 is a door panel support arm, and 17 is a door panel support arm.
Is a balancer weight of the door panel 8.

FIG. 8 also shows another embodiment of the present invention, which is an example in which a door panel 8A that does not require airtightness is housed in a recess F1 formed in the floor F. The door panel 8A is flipped up from the position shown in the figure to the dashed line position by a flipping mechanism including a first arm 18, a second arm 19, a spring 20 and a wire 21. At that time, the roller 22 provided at the lower end is guided by the guide plate 23. Further, an opening / closing position 24 attached to the wall W is provided, and when the handle 25 is rotated, the door panel 8A is pulled by the wire 26 and folded from the chain line position into the recess F1 and stored as shown in the drawing.

FIG. 9 also shows another embodiment of the present invention, which is an airtight type door panel 8B in which the packing 9 is provided only on the lower edge portion.
Is stored in the recess F1, and the first arm 27 and the second arm 2
8, a spring 29 and a wire 30 are used to bounce the mechanism from the position shown in the figure to the position indicated by the chain line. And
The other packing 9A is provided on the wall W side.

FIG. 10 shows a tide plate which is another embodiment of the present invention. Arms 31a and 31b are provided on the upper and lower portions of the door panel 8C, respectively, and these arms 31a and 31b are pivotally attached to one ends of links 32a and 32b, respectively. The racks 33a and 33b formed on the other ends of the arms 32a and 32b are mounted on the rail 1
Pinions 35a, 3 driven by a motor (not shown) guided by the frame 34 of the carriage 1B traversing 0, 10
It is meshed with 5b. Further, one end of a wire 36 is fixed to the arm 31b, and the wire 36 is connected to the frame 34 at the other end via a sheave 37 provided on the arm 31a and a pair of sheaves 38 provided on the carriage 1B. It is wound around a drum 39 provided and driven by a motor (not shown). In the figure, reference numeral 40 is a detent for the pinion 35b, 41 is a panel receiving frame, B is a base, and G is a gate.

The operation will be described with reference to FIGS. At the time of storage, the drum 39 is normally rotated to pull up the door panel 8C by the wire 36, and the pinion 35a is normally rotated to move the link 32a rightward to tilt the door panel 8C (FIG. 11).

When the gate G is closed by the door panel 8C, the carriage 1B is traversed and the door panel 8C is positioned with respect to the gate G. Then, the pinion 35a is reversed and the link 32a is moved leftward to raise the door panel 8C ( (Fig. 12).

Next, the drum 39 is reversed and the wire 36
Loosen and set the door panel 8C upright by its own weight (Fig. 13).

Next, the truck 1B is fixed to the base B by the floor fixing hook 4 (FIG. 14).

Finally, both pinions 35a and 35b are reversed, and both links 32a and 32b are moved to the left to make the door panel 8C.
To the gate B to finish.

[0031]

Since the present invention is constructed as described above, the door panel can be easily moved. Further, the fulcrum shaft can be provided horizontally to solve the strength problem of the conventional hinge and the like. Further, the opening / closing mechanism can be simplified and provided at low cost.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is a side view showing a moving state of a door panel.

FIG. 3 is a side view showing the positioning and dropping state of the door panel.

FIG. 4 is a side view showing a pressed state of the door panel.

FIG. 5 is a side view showing a fixed state of the door panel.

FIG. 6 is a side view showing a second embodiment of the present invention.

FIG. 7 is a detailed view of FIG.

FIG. 8 is a side view showing a third embodiment of the present invention.

FIG. 9 is a side view showing a fourth embodiment of the present invention.

FIG. 10 is a side view showing a fifth embodiment of the present invention.

FIG. 11 is a side view showing a stored state of the door panel.

FIG. 12 is a side view showing a positioning state of a door panel.

FIG. 13 is a side view showing a setting state of a door panel.

FIG. 14 is a side view showing a fixed state of the door panel.

FIG. 15 is a side view showing a pressed state of the door panel.

[Explanation of symbols]

 B ... Base F ... Floor F1 ... Recess G ... Gate W ... Building wall W1 ... Opening 1, 1A, 1B ... Bogie 2 ... Wheel 3 ... Cart stopper 4 ... Floor fixing hook 5, 5A ... Support shaft support frame 6 ... Support shaft 7 ... Arm 8, 8A-8C ... Door panel 9, 9A ... Packing 10 ...・ Rail 11 ・ ・ ・ Slide handle 12, 13 ・ ・ ・ Gear 14, 33a, 33b ・ ・ ・ Rack 15 ・ ・ ・ Panel fixing hook 16 ・ ・ ・ Door panel support arm 17 ・ ・ ・ Balancer weight 18, 27 ・・ First arm 19, 28 ... Second arm 20, 29 ... Spring 21, 26, 30, 36 ... Wire 22 ... Roller 23 ... Guide plate 24 ... Opening / closing device 25. ..Handles 31a, 31b Arms 32a, 32b ··· link 34 ... frame 35a, 35b ··· pinion 37, 38 ... sheave 39 ... drum 40 ... detent

Claims (1)

[Claims] 1. A fulcrum shaft that is parallel and horizontal to a wall opening or a door frame, a door panel fixed to the fulcrum shaft, and a hermetically sealed part of the door panel at the wall opening or the door frame. An airtight door provided with packing, a moving pressing means for moving and pressing the door panel, a swiveling means for swiveling, and a fixing means for fixing at one position.