JPH045110B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is applicable to precision machinery factories, semiconductor manufacturing factories,
This relates to a ceiling mounting structure at the joint between the ceiling and wall of a clean room, which is a room where dust and the like are averse in steel-framed buildings such as biotechnology-related factories and pharmaceutical-related factories.

[Prior art]

Conventionally, this type of ceiling-mounted structure is configured to be sealed with a highly airtight material such as silicone, polysulfide, or acrylic to prevent air from leaking from inside the clean room to the inside of the ceiling. And the cleanliness inside the clean room is maintained.

[Problems to be solved by this invention] However, in areas where there is a lot of snow, the weight of the snow can cause the roof to deform (sink), and at this time the ceiling, which is supported by hanging bolts from the roof's steel beams, may also deform (sink). Causes subsidence. This is because many steel-framed roofs have a structure in which the space between the pillars in the room is large for functional reasons, allowing the roof to deform (sink) to some extent.

For this reason, the above-mentioned conventional ceiling mounting structure cannot follow the amount of subsidence and the seal breaks, causing the problem that the air in the clean room leaks and a predetermined level of cleanliness cannot be maintained.

This problem can be solved by creating a structure where the clean room is completely independent from the main structure of the building, but due to economic difficulties such as construction costs, it is common that the clean room is also used as the main structure of the building. There has been a desire for an inexpensive general clean room that can address the problems mentioned above.

This invention was devised in view of the above-mentioned circumstances, and its purpose is to create a structure that can follow the sinking of the ceiling, reliably seal between the walls and ceiling of the main structure of the building, and provide a well-maintained structure. The present invention relates to a ceiling-mounted structure in a steel-framed clean room that can be installed in a steel frame clean room.

[Means for solving problems]

According to this invention, airtight rubber is installed between the wall and the ceiling so that it can follow the sinking of the ceiling and make it airtight.

This Air Tight Rubber is installed in close contact with one end on the side of the surrounding wall, which is the main structure of the building, and the other end on the lower surface of the peripheral edge of the ceiling. The interval is made longer than at least the maximum movement interval when the ceiling sinks, and a ceiling edge is provided to cover the airtight rubber.

〔Example〕

The present invention will be explained below with reference to illustrative embodiments.

The ceiling 2 of the clean room 1 is suspended by hanging bolts 6 and hanging fixtures 7 to a ceiling support channel 5 provided on a steel girder 4 supporting a roof folding slab 3. Airtight rubber 9 is attached between the ceiling 2 and the surrounding wall 8 to provide airtightness. (See Figures 1 and 2) The airtight rubber 9 is attached with one end to the side surface of the surrounding wall 8, which is the structure of the main body of the building, and the other end to the lower surface of the peripheral edge of the ceiling 2, using mounting screws 10. Fixed. At this time, in order to increase the degree of sealing to the wall 8 and the ceiling 2, a double-sided adhesive tape 11 such as butyl rubber and a fixed angle 12 are used in combination.

The airtight rubber 9 has a gap between its mounting positions on the surrounding wall 8 and the peripheral edge of the ceiling 2.
L ₁ is formed to be longer than at least the maximum movement interval when the ceiling 2 is submerged, and its long portion enters into the interior of the ceiling 2a.

Since the airtight rubber 9, the fixed angle 12, and the mounting screws 10 are directly exposed to the interior 13, they are covered with a ceiling parting edge 14 in consideration of the problem of appearance in terms of design.
(See Figures 2 and 3) Figures 4 and 5 show the joint part 15 and corner part 16 in the longitudinal direction of the airtight rubber 9.
This shows airtight rubber for backing 1.
7 is used to close the seam.

According to the ceiling-mounted structure having such a configuration, when it snows, the roof folding slab 3 and the steel girder 4 sink due to the weight of the snow, as described in the problem to be solved by the present invention, and as a result, Although the ceiling 2 of the clean room 1 sinks, since the airtight rubber 9 having a length longer than the amount of sinking of the ceiling 2 is used in advance, it will not break or be damaged when it sinks. (See FIG. 6) Furthermore, the shape, material, and attachment method of the airtight rubber 9 are not limited to those of this embodiment, but the one of this embodiment is considered to be the most rational.

〔Effect of the invention〕

The present invention has the above configuration and has the following effects.

Airtight rubber, which is longer than the maximum movement distance when the ceiling sinks, is tightly installed between the ceiling and surrounding walls in the clean room.
Even if the ceiling sinks due to snow accumulation, etc., the airtight rubber will not break or be damaged. Moreover, the long rubber of the Air Tight rubber fits inside the ceiling and is covered by the cut edge attached to the ceiling, so it fits well.

This means that any deformation of the ceiling can be followed, and air leakage within the clean room can be prevented. Therefore, the cleanliness inside the clean room can be maintained at a constant level not only during snowfall but also throughout the year.

Furthermore, construction is more economical than a structure in which the clean room is provided completely independently of the building itself, and maintenance after completion is easier.

[Brief explanation of drawings]

Fig. 1 is a schematic vertical sectional view showing the ceiling mounting structure of a steel frame clean room in a snowy area according to the present invention, Fig. 2 is an enlarged sectional view of section A in Fig. 1, and Fig. 3 is an enlarged section of B in Fig. 2. 4 and 5 are perspective views showing the joint and corner portions of the airtight rubber, and FIG. 6 is a sectional view showing a state in which the ceiling has sunk due to snow accumulation. 1...Clean room, 2...Ceiling, 2a...Inside ceiling, 3...Roof folding slab, 4...Steel frame girder, 5...Ceiling support channel, 6...Hanging bolt, 7...Hanging fixture, 8...Surrounding wall, 9...Airtight Rubber, 10...Mounting screw,
11...Double-sided adhesive tape, 12...Fixed angle, 1
3...Indoor, 14...Ceiling edge, 15...Joint part, 16...Corner part, 17...Airtight rubber for backing.

Claims (1)

[Claims] 1. Airtite rubber is installed on the side surface of the surrounding wall whose one end is the main structure of the building, and whose other end is attached in close contact with the lower surface of the peripheral edge of the submerged ceiling, and the airtight rubber is attached to the surrounding wall and the other end. The distance between the two mounting positions on the peripheral edge of the ceiling is formed to be longer than at least the maximum movement distance when the ceiling sinks, and the long part extends into the ceiling. A ceiling mounting structure for a steel frame clean room in a snowy area, characterized by having a covering ceiling edge.