JPH1162408A - Door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve door opening/closing operability and ensure airtightness of a room in the closed state of a door opened/closed being rotated around a shaft part by journalling an upper end part of an opening/closing plate opened by air pressure at the time of opening/closing action of the door while closing a vent hole during nonaction of the door, rotatably to the upper end part of the vent hole provided in the door. SOLUTION: A door 2 opened/closed being rotated around a shaft part is provided with a vent hole 3. An upper end part of an opening/closing plate 4 opened by air pressure at the time of opening or closing action of the door 2 while closing the vent hole 3 during nonaction of the door 2 is rotatably journalled to the upper end part of the vent hole 3. The opening/closing plate 4 is therefore opened being rotated around a shaft 7 at the upper end part by air pressure at the time of opening or closing action of the door 2, and the vent hole 3 is opened to equalize air pressure in both rooms partitioned by the door 2. The opening/closing operating force of the door 2 can therefore be reduced. In the closed state of the door 2, the opening/closing plate 4 is rotated around the shaft 7 at the upper end with its own weight, so that the vent hole 3 is closed to ensure the airtightness of the rooms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure for improving the openability of a door in a highly airtight room.

[0002]

2. Description of the Related Art When a door of a highly airtight room such as a bathroom or a toilet is a door that opens and closes around a shaft, the opening and closing operation force of the door is reduced by air pressure generated at the time of opening and closing the door. As a result, there is a problem that operability of opening and closing the door is deteriorated. In order to prevent this, conventionally,
Although ventilation is provided to allow ventilation, when ventilation is provided, there is a problem in that the airtightness is reduced and, for example, in a bathroom or the like, moisture or water flows out of the ventilation.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has good door opening / closing operability, and furthermore, it is necessary to improve the airtightness of a room with the door closed. It is an object to provide a door structure that can be secured.

[0004]

In order to solve the above-mentioned problems, a door structure according to the present invention is provided with a vent 3 provided on a door 2 which is opened and closed by rotating about a shaft. The upper end of an opening / closing plate 4 which is opened by air pressure when the door 2 is opened or closed and which closes the vent 3 when the door 2 is not operated is rotatably supported at the upper end of the door 2. Things. With this configuration, the opening / closing plate 4 is rotated around the shaft 7 at the upper end and opened by the air pressure at the time of the opening operation or the closing operation of the door 2, thereby opening the ventilation port 3 and opening the door 2. The pressure in both rooms separated by the
The opening / closing operation force is not reduced, and when the door 2 is closed, the opening / closing plate 4 rotates around its upper end shaft 7 by its own weight to close the ventilation opening 3.

[0005] Further, a vent 3 is provided on a door 2 which is opened and closed by rotating about a shaft, and a handle portion for opening and closing the door 2 is provided on an opening and closing plate 4 for opening and closing the vent 3. 5 is provided, and a spring member 6 is provided on the opposite side of the pulling direction of the handle portion 5 to bias the opening / closing plate 4 with a spring to return the opening / closing plate 4 to a state in which the vent 3 is closed. It may be something. That is, the door 2 is opened or closed while pulling the handle portion 5 against the spring force of the spring material 6 at the time of opening or closing the door 2, thereby opening the vent 3 and opening the door 2. The opening and closing operation force of the door 2 is not reduced by equalizing the air pressure of both the rooms partitioned by the door 2. Further, when the door 2 is closed, the handle portion 5 is released, so that the spring is opened. The ventilation port 3 is closed by the opening / closing plate 4 by the spring force of the material 6.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. First, an embodiment of the present invention will be described with reference to FIGS. The door 2 is attached to an opening frame 8 provided with an opening of a highly airtight room A so as to be openable and closable about a shaft. The door 2 is provided with a vent 3. In the embodiment shown in the accompanying drawings, the door 2 is configured by attaching a face plate 21 to a frame 20.
The ventilation hole 3 is formed between the horizontal frame 20a for attaching the face plate and the lower horizontal frame 20b. An opening / closing plate 4 that allows the vent 3 to be opened and closed is provided on the horizontal frame 20a for attaching the face plate at the upper end of the vent 3.
Is pivotally supported by a shaft 7. 25 in the figure is the frame 2
0 vertical frame. In the embodiment shown in the attached drawings, the door 2 is 2
It is a folding door, which protrudes and opens toward a highly airtight room A such as a bathroom, and an opening / closing plate 4 is attached to face a highly airtight room A such as a bathroom and is attached to the room A side. To open.

When the door 2 is closed, the opening / closing plate 4 is turned around the shaft 7 at the upper end as shown by the solid line in FIG. The room A is opened, whereby the airtight room A partitioned by the door 2 is opened.
And equalizing the air pressure between the adjacent room B via the door 2 and the adjacent room B, whereby the operation force of the door 2 is not reduced and the door 2 can be smoothly operated. It is. When the door 2 has been closed, the opening / closing plate 4 is rotated by its own weight about the shaft 7 at the upper end portion, whereby the opening / closing plate 4 is automatically turned by the opening / closing plate 4 as shown by the broken line in FIG.
Is closed to ensure the airtightness of the highly airtight room A. For example, when the highly airtight room A is a bathroom, water or steam flows out to the adjacent room B via the vent 3. Can be prevented. Here, a waterproof packing 9 is provided at the edge of the vent 3, and the opening / closing plate 4 is provided.
When the ventilation opening 3 is closed, the waterproof packing 9 is pressed to ensure more airtightness. When the door 2 is closed, the door 2 comes into contact with the waterproof packing 22 provided on the opening frame 8 to ensure airtightness.

In the embodiment shown in FIGS. 1 and 2 described above, the door 2 constituted by a two-folded door is opened so as to protrude toward the room A with high airtightness, and when the door 2 is closed, the opening / closing plate 4 is closed.
Is rotated to the room A side to open the ventilation port 3, but the door 2 is opened so as to protrude into the highly airtight room A side constituted by a two-folded door, and the door 2 is opened. When opening, the opening / closing plate 4 may rotate toward the room B to open the ventilation port 3. In this case, when opening the door 2 so as to protrude toward the room A, it is necessary to open the door 2 with a light operation. Can be. Of course, in the case where the door 2 protrudes toward the room A, both the door 2 in which the opening / closing plate 4 pivots toward the room A and opens, and the door 2 in which the opening / closing plate 4 pivots toward the room B and opens. Alternatively, the door 2 may be provided with an opening / closing plate 4 so that the door 2 can be turned to either the room A side or the room B side.
In these cases, the operation becomes lighter in both the opening operation and the closing operation of the door 2. Further, in each of the above-described embodiments, an example has been described in which the door 2 constituted by a two-folded door is opened so as to protrude toward the room A with high airtightness. In this case, the opening / closing plate 4 may be provided so as to rotate toward the room B to open the ventilation opening 3, or the opening / closing plate 4 may be rotated toward the room A to open the ventilation opening 3. , Or both the open / close plates 4 can be provided, or the open / close plate 4 can be provided so as to be rotatable on either the room A side or the room B side.

In each of the above embodiments, an example of a two-fold door is shown as the door 2. However, it is needless to say that the door 2 of each of the above embodiments may be a revolving door having one end pivotally supported. is there. Next, another embodiment of the present invention will be described with reference to FIG. In the present embodiment, a vent 2 is provided on a door 2 that opens and closes by rotating about a shaft portion, and a handle for opening and closing the door 2 is provided on an opening / closing plate 4 for opening and closing the vent 3. A portion 5 is provided, and a spring member 6 is provided on a side opposite to the pulling direction of the handle portion 5 to bias the opening / closing plate 4 with a spring to return the opening / closing plate 4 to a state in which the vent 3 is closed.
That is, a central frame 2 provided at a substantially central portion in the vertical direction of the door 2
3 is a central upper plate mounting frame 23a and a central lower plate mounting frame 2
3b, the central upper plate mounting frame 23
The ventilation hole 3 is formed between a and the center lower plate attaching frame 23b. A main body 24 having a horizontally long hole 24a is provided at an upper end of the opening / closing plate 4, and a handle portion 5 projects in a substantially inverted L shape forward from the upper end of the main body 24. A guide 26 is provided in the vertical frame 25 of the frame 20, and the guide 26 is inserted into the elongated hole 24, and the opening / closing plate 4 provided with the handle 5 is moved along the guide 26 to the door 2. It is movable in the front-back direction. A spring member 6 is interposed between the guide 26 and the handle portion 5. Normally, the opening / closing plate 4 closes the ventilation port 3 as shown in FIG. The plate 4 is pressed against the waterproof packing 27 provided on the central lower plate attaching frame 23b to ensure airtightness.

However, when the door 2 is opened from the state shown in FIG. 3A or when the door 2 is opened and then closed again, the handle portion 5 resists the spring force of the spring material 6 as shown in FIG. The opening or closing operation of the door 2 is performed while pulling the door 2, thereby opening the ventilation port 3 and equalizing the air pressure in both the rooms A and B partitioned by the door 2, whereby the door 2 is closed. The opening / closing operation force is not reduced. When the door 2 is closed, the handle portion 5 is released, so that the opening 3 is automatically closed by the opening and closing plate 4 by the spring force of the spring member 6 as shown in FIG. Is what you do.

Also in this embodiment, the door 2 may be either a two-folded door or a rotating door.

[0012]

According to the first aspect of the present invention, as described above, the door which opens and closes by rotating about the shaft is provided with a vent, and the upper end of the vent is provided. In addition, since the upper end of the opening / closing plate that opens by air pressure when the door is opened or closed and closes the vent when the door is not operated is rotatably supported, the air pressure when the door is opened or closed is By opening and closing the opening and closing plate about the axis at the upper end, the ventilation opening is opened and the air pressure of both rooms separated by the door is made equal pressure, whereby the opening and closing operation force of the door is reduced, The opening or closing operation of the door can be performed smoothly with a light force,
Further, when the door is closed, the opening / closing plate is rotated by its own weight about the axis at the upper end to close the ventilation port, and the ventilation port can be closed with a simple structure to secure airtightness.

According to the second aspect of the present invention, as described above, the door that opens and closes by pivoting about the shaft is provided with a vent, and the opening and closing for opening and closing the vent is provided. A handle is provided on the plate to open and close the door, and a spring member is provided on the side opposite to the pulling direction of the handle to bias the open / close plate to return the open / close plate to a state in which the vent is closed. Therefore, at the time of opening or closing the door, the opening or closing operation of the door is performed while pulling the handle portion against the spring force of the spring material,
As a result, the air vent is opened and the air pressure in both rooms separated by the door is made equal, whereby the opening / closing operation force of the door is not reduced. It can be done smoothly with a light force, and when the door is closed, the handle is released, and the ventilation port is closed by the opening and closing plate by the spring force of the spring material. It can be closed to ensure airtightness.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention.

FIG. 2 is a perspective view of the door.

FIG. 3 shows another embodiment of the present invention.
(B) is a sectional view of a main part showing a state in which the handle is pulled to move the opening / closing plate away from the vent.

[Explanation of symbols]

 2 Door 3 Vent 4 Opening / closing plate 5 Handle 6 Spring material 7 Shaft

Claims (2)

[Claims] A door which opens and closes by rotating about a shaft is provided with a vent, and the upper end of the vent is opened by air pressure when the door is opened or closed and when the door is not operated. A door structure wherein an upper end of an opening / closing plate that closes a vent is pivotally supported at an upper end thereof. 2. A door which opens and closes by rotating about a shaft portion is provided with a vent, and an opening / closing plate for opening / closing the vent is provided with a handle for opening / closing the door. A door structure comprising a spring member for urging the open / close plate with a spring on the side opposite to the pulling direction to return the open / close plate to a state in which the vent is closed.