JPH058312B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door structure for a clean room in a hospital, factory, etc., and is characterized by a hinge that attaches the door.

The hinges conventionally used for the door portion of clean rooms are all known ones that are also used for other rooms. However, many clean room doors tend to be heavy, so flag hinges that can withstand the weight are often used, and the door frame of the door stop is lined with airtight material to block outside air. It is set up. Here, the present invention does not apply to a hemline hinge that is symmetrical across the axis when the butterfly's wings are spread. The above-mentioned airtight material is often made of an elastic material such as resin and has a contact surface having a curved shape such as an oval shape in a cross section.

A gap smaller than the cross-sectional height of the airtight material is formed between the door and the door frame to which the airtight material is attached. When the door is closed by rotating the door, the door fits into the door frame while pushing the top of the airtight material. The curved surface such as an oval shape is used to reduce the friction generated between the door and the door as it rotates, and the elasticity is used to make the airtight surface uniform by recovering the thickness. As the amount increases, the function decreases. Particularly on the hinge side, significant wear and deformation of the airtight material and deterioration can be seen.

The present invention softens the frictional contact with the airtight material by reducing the angle of entry of the door into the door frame.
This is a design of the flag holder hinge that can apply uniform force.

This will be explained below based on examples and drawings. The flag holder hinge 1 made of a hard material such as metal is:
As shown in FIG. 1 and FIGS. 2 and 3, it consists of rotary plates 2, 2 arranged one above the other in the same direction, and a shaft 3. The rotary plate 2 has a hollow cylindrical ring part 4 formed at one side end of a flat plate of material, and screw holes 5,
5... to form the door attachment part 6, leave a support part 7 with some width on the ring part 4 side, and bend the door attachment part 6 within the range of 15 degrees to 90 degrees to form the door attachment part 6. was formed.

The shaft 3 is fitted inside the ring part 4 of the rotary plate 2, and has approximately the same length as the two ring parts 4, 4 of the two upper and lower rotary plates 2, 2 arranged. A shaft 3 is fitted and fixed into the ring part 4 of the first rotary plate 2 in a downwardly extending manner, and the lower part of the shaft 3 that penetrates downward with the same length as the upper part of the shaft 3 is used as the insertion shaft 9. , flag holder 8.

On the same side as the other rotating plate 2, its ring portion 4
The flag holding hinge 1 of the present invention has an insertion shaft 9 of a flag holding plate 8 rotatably fitted therein.

By the way, to describe the door structure attached using the flag holder hinge 1, first, as shown in FIG. 4, a conventional hinge 10 (this example is also a flag holder hinge)
In this example, the flag holding plate 8 of the rotating plate 12 is attached to the door 11, and the other rotating plate 12 is attached to the door frame 13 with screws passing through the screw holes 5, . As partially shown in FIG. 6, the door stop portion of the door frame 13 is covered with an airtight material 15 except for the door stop 14. In addition, the door 1 is attached to the shoe part 14 as shown in Fig. 6.
An airtight material 15 is built into the lower end of the door 1, and the airtight material descends when the door 11 is closed. The airtight material 15 is made of a resin material such as neon prene rubber, has elasticity, and has an apex 16 at the tip of the curved cross section. Further, as described above, the gap provided for fitting the door 11 into the door frame 13 is set to have a length smaller than the height of the cross section of the airtight material 15.

Now, in FIG. 4, the approach curve of the contact part 19 on the knob 18 side of the door 11 into the door frame 13 is a circle that circumscribes the door frame 13 centering on the axis 3, and The approach curve of the tangent part 19 is axis 3
It is a circle centered on , and the tip of the corresponding contact part 19 is drawn,
The approach angle is 45 degrees. For this reason, the abutment part 19 of the door 11 presses diagonally into the airtight material 15 on the side of the conventional hinge 10, as if using a lever with the apex 16 of this airtight material 15 as the fulcrum. , the fulcrum has elasticity and deforms. Therefore, the airtight material 15
9, it wears out and is damaged, resulting in loss of airtightness.

Therefore, referring to FIG. 5, when looking at the flag holder hinge 1 of the present invention, the installation of the hinge, the airtight material 15,
The condition of the door frame 13 is exactly the same as that shown in FIG. The angle is shallower than the conventional one, and the approach curve drawn by the abutting portion 19 on the side of the flag holder hinge 1 of the door 11 only slightly rubs the apex of the airtight material 15. The approach angle in the figure is only 10 degrees.

That is, in the present invention, by attaching the angle A to the flag hinge, the door 11 can be rotated from an approach angle of 45 degrees to, for example, an approach angle of 10 degrees, as if it were a fitted door. Airtight material 1
It brought an effect to the clean room that would not be affected by excessive force. Moreover, the flag holding hinge 1 is characterized in that it does not require any other parts or devices just by attaching the angle A.

Now, FIG. 6 shows the situation around the door 11 in the clean room. The front side partitioned by the door frame 13 forming a mullion 20, the entrance doorway 14, and the partition wall 21 is a clean room, and the present invention provides screw holes 5, 5, etc. It's stopped. Although this figure shows the door 11 in an open state, a person enters the room from the opposite side to the front side and closes the door 11. As mentioned above, the airtight material 15 is provided also in the part of the doorstop 14 and throughout the doorstop, and by using the flag holder hinge 1 of the present invention, the airtight material 15 is not deformed and can be placed on the opposite side. outside air is completely shut off in the clean room.

The present invention can also be used for ceiling inspection ports in clean rooms, movable rotating walls, ship hatches, etc.

[Brief explanation of the drawing]

FIG. 1 is an elevational view of a flag holder hinge 1 used for attaching a door according to the present invention. Figure 2 is a plan view. Figure 3 is a sectional view.
FIG. 4 shows a door structure using a conventional hinge 10. Fifth
The figure shows a door structure using the flag holder hinge of the present invention. 6th
The figure is an external view showing the state of the entrance to the clean room. 1... Flag holder hinge, 2... Rotating plate, 3... Axis,
4...Ring part, 5...Screw hole, 6...Mounting part,
7... Support part, 8... Flag holding plate, 9... Insertion shaft,
DESCRIPTION OF SYMBOLS 11...Door, 13...Door frame, 15...Airtight material, 16...Vertex, 19...Abutment part.

Claims (1)

[Claims] 1 A circular ring part 4 is formed at one side end of a flat plate, a plurality of screw holes 5, 5... are opened in the flat plate to form a mounting part 6, and the mounting part 6 is connected to the ring part 4.
A rotary plate 2 is formed by bending it at an angle A within a range of 15 degrees to 90 degrees, leaving a support part 7 of some width on the side, and a small cylindrical shaft is attached to the ring part 4 of the first rotary plate 2. The upper part of the shaft 3 is fitted inside and fixed, and the lower part of the shaft 3 is made into a penetrating insertion shaft 9 of almost the same length as the upper part, and is used as a flag holding board 8, and attached to the ring part 4 of the other rotating board 2. The insertion shaft 9 of the flag holding plate 8 is rotatably fitted inside to form an angled flag holding hinge, the rotating plate 2 of the flag holding plate 8 is fixed to the door, and the other rotating plate is attached to the door frame. The door 11 is fixed to the door frame 13, and the airtight material 15 is installed along the door frame 13, and the door contact portion 19 and the airtight material 1 are attached.
A door structure using an angled flag holder hinge, which is characterized by the fact that 5 and 5 can come into contact with each other without friction.