JPH0534745Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an air filter mounting device.

(Prior Art) Conventionally, as shown in Figure 3, an air filter mounting device has been used to attach an air filter a to a clean room b.
an air filter mounting device used for mounting and fixing the air filter on a mounting frame c suspended from a structural member of the air filter, and a concave groove frame e disposed on the lower surface of a support frame d airtightly fixed to the outer peripheral surface of the air filter a; The support frame d of the air filter a is airtightly attached to the mounting frame c using an air filter mounting device consisting of a viscoelastic sealing material g that is raised beyond the opening f of the groove frame e and filled inside the groove frame e. things are known.

In the drawings, h indicates an adhesive for fixing the concave groove frame e to the support frame d, and i indicates a sealing material for sealing between the support frame d and the concave groove frame e on the open side of the mounting frame b.

(Problems to be Solved by the Invention) The conventional air filter mounting device has a support frame d of an air filter a, a mounting frame c, a recessed groove frame e, and a viscoelastic sealing material g that is filled and raised in the recessed groove frame e. When the viscoelastic sealing material g is mounted and fixed through the mounting device consisting of
is crimped between the support frame d and the mounting frame c, is pushed out from the end j of the mounting frame c, and spreads out to the opening side of the mounting frame c, so the protruding part k is visible from inside the clean room b. There is a problem in that it gives a strange appearance.

In addition, the viscoelastic sealing material g that is crimped between the support frame d and the mounting frame c is firmly attached to the mounting frame c over the entire opening f of the grooved frame e, so the air filter a must be replaced. When the air filter a is removed from the mounting frame c in order to do so, a large amount of the viscoelastic sealing material g remains on the mounting frame c. This remaining viscoelastic sealing material g cannot maintain good contact between the support frame d and mounting frame c of the newly replaced new air filter a, and the sealing performance between them is impaired. After removing the residual viscoelastic sealant g on the mounting frame 9c, it is necessary to remove the remaining viscoelastic sealant g, which causes problems such as the removal work is complicated, takes a lot of time, and is inefficient. .

The present invention solves this problem by minimizing the amount of viscoelastic sealant remaining on the mounting frame when replacing the air filter, simplifying the removal work of the viscoelastic sealant and replacing the air filter. An object of the present invention is to provide an air filter mounting device that can efficiently perform the above operations and prevent a viscoelastic sealing material from protruding toward the open side of a mounting frame.

(Means for Solving the Problem) In order to achieve the above object, the present invention is an air filter mounting device used for mounting and fixing an air filter on a mounting frame suspended from structural members of a clean room. An air filter mounting device consisting of a concave groove frame disposed on the lower surface of a support frame that is airtightly fixed to a surface, and a viscoelastic sealing material raised beyond the opening of the concave groove frame and filled in the concave groove frame. At the lower end of the side wall on the open side of the mounting frame of the recessed groove frame, the recess protrudes in close contact with the mounting frame toward the other side wall of the recessed groove frame and closes a part of the opening. The present invention is characterized in that a projecting piece is provided so that the lower end of the other side wall of the groove frame does not come into contact with the mounting frame.

(Function) A projecting piece provided at the lower end of the side wall on the open side of the mounting frame of the groove frame protrudes tightly onto the mounting frame toward the other side wall of the groove frame to close the opening of the groove frame. At the same time, the lower end of the other side wall of the groove frame is formed so as not to touch the mounting frame, so that when the support frame of the air filter is placed and fixed on the receiving member of the mounting frame, the opening of the groove frame is closed. The protruding piece can prevent the viscoelastic sealing material protruding from the part from being pushed out to the open side of the mounting frame, and the opening of the grooved frame is provided at the lower end of the side wall of the mounting frame of the grooved frame. Since the width is formed narrowly by the protruding piece and the lower end of the other side wall of the concave groove frame, the mounting frame and the elastic sealing material contact only at the narrow opening, so that the mounting frame for the viscoelastic sealing material The amount of adhesion to the air filter is small, and the protrusions on the groove frame grip the viscoelastic sealing material inside the groove frame, so when the air filter is removed via the support frame, the resistance to pulling it apart is small. It can be easily removed.

(Example) The present invention will be explained with reference to the drawings.

1 and 2 show one embodiment of the present invention.

In the drawing, 1 is an air filter, 2 is a support frame hermetically fixed to the outer circumferential surface of the air filter 1, 3 is a mounting frame for mounting and fixing the air filter 1, and 4 is an airtight seal to the lower end of the support frame 2 of the air filter 1. The fixed concave groove frame with a concave cross section, 5 is a viscoelastic sealing material filled in the concave groove frame, and 6 is the mounting frame 3 in a clean room 7.
The hanging bolts 8 are used to hang the hanging bolts from the structural members, and reference numeral 8 indicates a groove frame for the hanging bolts to which the hanging bolts 6 are fixed.

More specifically, the mounting frames 3 are built into the ceiling of the clean room 7 in a grid pattern, and between the two adjacent mounting frames 3 there is provided a recessed groove frame 8 for hanging bolts in the center of the upper surface. 6 is suspended from the structural material of the clean room 7. Then, the lower surface of the support frame 2 and the upper surface of the concave groove frame 4 are bonded with adhesive, etc., and the support frame 2 of the air filter 1 is placed on the mounting frame 3 so as to block the air filter 1 from the clean air outlet in the ceiling. When fixing, the concave groove frame 4 is reliably arranged between the support frame 2 and the mounting frame 3. Further, after the support frame 2 and the groove frame 4 were bonded together, the inner peripheral surface of the bonded surface on the clean room 7 side was airtightly covered with a sealing material 9 made of, for example, a silicone-based resin that does not solidify or flow out.

In the present invention, as shown in the second figure, the lower end 10a of the open side wall 10 of the mounting frame 3 of the groove frame 4 is directed toward the other side wall 11 of the groove frame 4 and protrudes so as to be in close contact with the mounting frame 3. Opening 12 of concave groove frame 4
A projecting piece 13 is provided that partially closes off the mounting frame 3 and that the lower end 11a of the other side wall 11 does not come into contact with the mounting frame 3. The lower surface 13a of the protruding piece 13 of the groove frame 4 is formed smooth, and the opening 1 is formed between the tip 13b of the protruding piece 13 and the lower end 11a of the other side wall 11 of the groove frame 4.
2 was formed narrowly. Further, the viscoelastic sealing material 5 was filled into the groove frame 4, and a portion of the viscoelastic sealing material 5 was raised from the narrow opening 12 of the groove frame 4.

Then, the smooth lower surface 13 of the projecting piece 13 of the concave groove frame 4
a and the viscoelastic sealing material 5 protruding from the narrow opening 12 of the concave groove frame 4 are pressed to the mounting frame 3, and the viscoelastic sealing material 5 is attached to the side wall 14 of the hanging bolt groove frame 8. The support frame 2 of the air filter 1 was attached to the mounting frame 3 in an airtight manner by crimping the support frame 2 to the mounting frame 3.

The material of the concave groove frame 4 may be any material, such as rubber or metal, as long as it comes into close contact with the mounting frame 3. In addition, the shape of the tip 13b of the protruding piece 13 protruding from the lower end 11a of the open side wall 11 of the mounting frame 3 of the groove frame 4 depends on the size and shape of the groove frame 4, and the mounting and fixing of the groove frame 4. The appropriate selection shall be made depending on the surface of the mounting frame 3 to be used. In addition, the viscoelastic sealing material 5 to be filled in the groove frame 4 is preferably a highly viscous jelly-like material such as silicone gel material that does not contain oil components, so that it can be attached even after being strongly crimped to the mounting frame 3. A material that does not easily adhere to the frame 3 is preferable.

(Effect of the invention) According to the invention as described above, the projecting piece provided at the lower end of the open side wall of the mounting frame of the recessed groove frame is brought into close contact with the mounting frame as it faces toward the other side wall of the recessed groove frame. In addition, the lower end of the other side wall of the recessed groove frame is formed so as not to come into contact with the mounting frame. The protruding piece prevents the viscoelastic sealing material that swells up from the opening of the groove frame due to crimping from being pushed out to the open side of the mounting frame, so the air filter can be installed without damaging the appearance of the clean room. In addition, since the opening of the concave groove frame is narrowly formed by the protruding piece and the other side wall of the concave groove frame, the mounting frame and the viscoelastic sealing material contact each other in a narrow manner, resulting in a viscoelastic seal. The amount of material that adheres to the mounting frame is small, and the protruding pieces of the concave groove frame grip the viscoelastic sealing material inside the concave groove frame, so when replacing the air filter, when removing the air filter via the support frame, Since the resistance force against the separation is small, the amount of viscoelastic sealing material remaining on the mounting frame is extremely small, and subsequent removal of the remaining viscoelastic sealing material is easy, compared to conventional devices. This has the advantage of making it possible to efficiently replace the air filter.

[Brief explanation of the drawing]

Fig. 1 is a cutaway side view of one embodiment of the present invention;
The figure is an enlarged view of the main parts, and FIG. 3 is a cutaway side view of a conventional air filter mounting device. DESCRIPTION OF SYMBOLS 1... Air filter, 2... Support frame, 3... Mounting frame, 4... Concave groove frame, 5... Viscoelastic sealing material, 7
...Clean room, 10...Side wall, 10a...
Lower end, 11...other side wall, 11a... lower end of the other side wall, 12... opening, 13... projecting piece.

Claims (1)

[Scope of utility model registration request] An air filter mounting device used for mounting and fixing an air filter on a mounting frame suspended from structural members of a clean room, which includes a concave groove frame disposed on the lower surface of the support frame that is airtightly fixed to the outer peripheral surface of the air filter; In an air filter mounting device comprising a viscoelastic sealing material raised beyond the opening of the groove frame and filled inside the groove frame, the groove is provided at the lower end of the side wall on the open side of the mounting frame of the groove frame. A projecting piece that protrudes tightly onto the mounting frame toward the other side wall of the frame to close a part of the opening, and prevents the lower end of the other side wall of the groove frame from coming into contact with the mounting frame. An air filter mounting device characterized by being provided with.