JP2000045654A - Semi-air-tight door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic semi-air-tight door in a simple structure and at a low cost without requiring a large-scale device. SOLUTION: A semi-air-tight door includes elastic members 8 mounted at the upper and lower sides of a door 1 so as to separated each other in the direction of opening/closing the door 1 and a roller 9 for guiding the elastic members 8 to the closing direction together with the door 1 while thrusting the elastic members 8 during closing the door 1, whereby the door 1 thrust by the roller 8 is pressed against an air-tight 2a provided on a door frame 2 during closing the door 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to, for example, a class 10
The present invention relates to a semi-airtight automatic door of a pre-loading room leading into a clean room requiring a cleanness of 0000.

[0002]

2. Description of the Related Art As a conventional semi-airtight type automatic door of this type, for example, a groove is provided in a door rail, and when the door is closed, air pressure is applied to the groove so that the entire door is pressed against an airtight provided in a door frame. There has been known a device in which airtightness is maintained.

[0003]

However, in such a conventional semi-airtight automatic door, there is a disadvantage that the device for applying the air pressure is large and the cost is high.

[0004] Further, there is a disadvantage that dust or the like accumulates in a groove provided in the door rail or a step is formed on a shoe slide, so that a forklift or the like does not enter or exit smoothly when the door is opened.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a simple, low-cost semi-airtight door that does not require a large-scale device.

[0006]

In order to achieve the above object, a semi-airtight door according to claim 1 is provided with an elastic member which is attached to the upper and lower sides of the door so as to be spaced apart from each other in the opening and closing direction of the door. A roller for guiding the elastic member together with the door in the closing direction while pressing the elastic member when moving the door in the closing direction, wherein the door pressed by the roller when the door is closed is a door frame. Characterized in that it is pressure-bonded to the airtight provided in the above.

The semi-airtight door according to claim 2 is
In the first aspect, the elastic member has a wedge shape that gradually becomes thinner in the closing direction of the door.

According to a third aspect of the present invention, there is provided a semi-airtight door.
3. The door frame according to claim 1, wherein the shoe slide of the door frame has a flat surface, and a rubber member attached to a lower end of the door is slid on the flat surface in the opening and closing direction of the door. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a closed state of a semi-airtight automatic door as an example of an embodiment of the present invention as viewed from a clean room side, and FIG. 2 is a II-I of FIG.
FIG. 3 is a sectional view taken along line I of FIG. In this embodiment, a semi-airtight automatic door in a pre-loading room leading into a clean room requiring a class 100000 cleanness is taken as an example.

In FIGS. 1 and 2, reference numeral 1 denotes a door,
The upper end and the left and right ends of the door 1 are wider than the square opening of the door frame 2. The shoe frame of the door frame 2 has a flat surface 3, and the flat surface 3 is attached to a lower end of the door 1 by a D.
The mold rubber (rubber member) 4 slides in the opening and closing direction. A spring member 5 for urging the door 1 toward the corridor is attached to the upper end of the door 1, and a guide roller 6 is attached to the spring member 5. The guide roller 6 rolls in the opening and closing direction along a guide rail 7 fixed to the inner surface of the upper wall of the door frame 2, thereby enabling the door 1 to move in the opening and closing direction.

A contact plate 1a made of stainless steel is continuously attached to the upper end of the surface of the door 1 facing the clean room and both ends (left and right ends) of the door 1 in the opening and closing direction. Reference numeral 1a denotes a rubber airtight 2a that is continuously attached to the upper end of the door frame 2 facing the corridor and both ends (left and right ends) of the door 1 in the opening and closing direction. Further, a D-shaped rubber 13 is attached to an open / close end (left end) of the door 1.

Further, above and below the surface of the door 1 facing the corridor side,
Two wedge-shaped rubbers (elastic members) 8 are attached to each other in the opening and closing direction of the door 1 so as to be spaced apart from each other (a total of four). As shown in FIG. 3, the wedge-shaped rubber 8 is formed so as to become gradually thinner in the closing direction of the door 1.

On the corridor side of the door 1, rollers 9 are arranged in a total of two places vertically (four places) corresponding to the number of the wedge-shaped rubbers 8, and the upper two rollers 9 are suspended frames. The lower two rollers 9 are rotatably supported by a bracket 11 attached to the bracket 10 and a bracket 12 attached to the floor.
It is supported rotatably. Each roller 9 guides the wedge-side rubber 8 together with the door 1 in the closing direction while pressing the wedge-shaped rubber 8 when moving the door 1 in the closing direction. Is designed to press the thickest part of the wedge-shaped rubber 8 against the clean room side against the urging force of the spring member 5.

Then, the wedge-shaped rubber 8 is
By pressing the thickest part of the door 1 toward the clean room, the contact portions 1a attached to the three sides of the door 1
And the D-type rubber 4 attached to the lower end of the door 1 is pressed against the flat surface 3 of the shoe slid of the door frame 2, thereby ensuring the quality of the semi-air tight level. can do.

As described above, in this embodiment, in a state where the door 1 is closed, the quality of about semi-air tight can be ensured only by pressing the wedge-shaped rubber 8 toward the clean room with the roller 9. As described above, a large-scale device is not required, and as a result, a semi-airtight automatic door with a simple structure and low cost can be provided.

Further, since the D-type rubber 13 is also attached to the open / close end (left end) of the door 1, the open / close end is double tightly coupled with the contact portion 1a being pressed against the air tight 2a. Can be

Further, since the wedge-shaped rubber 8 which becomes gradually thinner toward the closing direction of the door 1 is used as the elastic member,
The opening and closing operation of the door 1 and the operation of pressing the door 1 toward the clean room in the closed state can be performed smoothly.

Further, the shoe slide of the door frame 2 is made flat and the D-type rubber 4 attached to the lower end of the door 1 is slid on the flat surface 3 in the opening and closing direction. Dust and the like can be prevented from accumulating, and a forklift or the like can be smoothly moved in and out when the door is opened.

[0019]

As is apparent from the above description, according to the first aspect of the present invention, when the door is in the closed state, only by pressing the elastic member with the roller, the door is crimped to secure the quality of about semi-air tight. Therefore, unlike the related art, there is no need for a large-scale device, and as a result, it is possible to provide a semi-airtight automatic door having a simple structure and a low cost.

According to the second aspect of the present invention, in addition to the first aspect,
Since the elastic member is formed in a wedge shape that gradually becomes thinner in the closing direction of the door, an effect is obtained that the opening and closing operation of the door and the pressing operation of the door by the roller in the door closed state can be performed smoothly.

According to the third aspect of the present invention, the shoe slide of the door frame is made flat, and the rubber member attached to the lower end of the door is slid on the flat surface in the opening and closing direction. And the like can be prevented from accumulating, and the effect that a forklift or the like can enter and exit smoothly when the door is opened can be obtained.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a closed state of a semi-airtight automatic door as an example of an embodiment of the present invention as viewed from a clean room side.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a diagram viewed from the direction of arrow A in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door 2 ... Door frame 2a ... Air tight 3 ... Flat surface 4 ... D-type rubber (rubber member) 8 ... Wedge-shaped rubber (elastic member) 9 ... Roller

Claims (3)

[Claims] 1. An elastic member which is mounted above and below a door so as to be separated from each other in the opening and closing direction of the door, and the elastic member is moved together with the door in a closing direction while pressing the elastic member when closing the door. A semi-airtight door comprising: a guide roller; and when the door is closed, the door pressed by the roller is pressed against an airtight provided on a door frame. 2. The semi-airtight door according to claim 1, wherein the elastic member has a wedge shape that gradually becomes thinner in a closing direction of the door. 3. The door frame according to claim 1, wherein the shoe slide of the door frame has a flat surface, and a rubber member attached to a lower end of the door is slid on the flat surface in the opening and closing direction of the door. 1
Or a semi-airtight door according to 2.