JPH04289360A - Application of ceiling frame in clean room and ceiling frame structure - Google Patents

Abstract

PURPOSE:To simplify the construction work, by forming a ceiling frame by connection of divided filter units in which a filter unit or the like is formed detachably in frames and further, suspending the connected corners with a hanger CONSTITUTION:Divided filter units 5 in which a filter unit 9 and a blower unit 8 with a filter are formed detachably to become a frame are connected to each other to define a ceiling frame 7. Next, the connected corner of the divided filter unit 5 is suspended by a hanger 6. In this way, the ceiling of a clean room can be simply assembled.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling frame construction method and ceiling frame structure for supporting an upper filter, etc. in a clean room.

0002

[Prior Art] Generally, a clean room is formed by having an air supply chamber in the upper part that blows out clean air through a filter, and a return air chamber in the lower part that sucks in clean air through a grating, etc. Clean air is blown from the chamber into the clean room via a filter, descends through the clean room, is sucked into the return air chamber, and is circulated back into the clean room.

By the way, when constructing a clean room, especially when installing a blower with a filter or a filter on the ceiling, ceiling frames are installed vertically and horizontally on the ceiling, and the air blower units with filters and filters are installed in the space divided by the frame. I try to fit the filter in and install it.

0004

[Problem to be Solved by the Invention] By the way, although this filter-equipped blower unit and filter are manufactured to standard dimensions at the factory, the ceiling frame must be assembled while adjusting the dimensions on-site in order to attach them. , there is a problem of extremely poor workability.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a ceiling frame construction method and a ceiling frame structure for a clean room, which allow the ceiling frame to be assembled accurately and easily.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a method for constructing a ceiling frame for supporting a filter on the ceiling of a clean room. A large number of divided frame units are formed in the clean room, and these divided frame units are sequentially aligned on the ceiling of the clean room, and the divided frames of adjacent divided frame units are integrally connected to form a ceiling frame, and the adjacent divided frame units are In the ceiling frame construction method for a clean room where the seam is suspended from the ceiling using hangers, and in the ceiling frame structure for supporting the filter on the ceiling of the clean room, it is formed in a frame shape to surround the filter unit to be installed. A split frame unit having a joint surface on the outer periphery, a connecting groove formed in the split frame of the split frame unit, and a connecting groove of an adjacent split frame when the split frame units are aligned. This is a ceiling frame structure that includes a joint piece that connects both split frames together, and a hanger that suspends the joints of each split frame unit from the ceiling when they are aligned.

[0007]

[Operation] According to the above configuration, when assembling the ceiling frame on the ceiling of a clean room, it is formed in advance into a split frame unit at a factory etc. with dimensions that allow the filter unit to be attached, and these are sequentially aligned on site and integrated. By connecting it to the ceiling and hanging it from the ceiling with a hanger, the ceiling frame can be assembled easily and accurately.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

First, the overall outline will be explained with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 1 denotes a clean room whose surroundings are divided by partition boards 2, and a raceway 3 is attached to the ceiling of the clean room.
A plurality of split frame units 5 formed into frame bodies are aligned through turnbuckles 4, and their joints are suspended through hangers 6 to form a ceiling frame 7.

After construction of the ceiling frame 7, as shown in FIG. 2, a blower unit 8 is attached to each split frame unit 5 from above the ceiling frame 7, and a filter unit 9 is fitted into the blower unit 8 from below. It is attached. Note that only a filter unit may be attached to this ceiling frame 7.

Next, the construction method and structure of this ceiling frame will be explained in more detail with reference to FIGS. 3 to 12.

First, the split frame unit 5 is formed into a frame shape so as to surround the filter unit 9 shown in FIG. This split frame unit 5 consists of four split frames 1 having the same cross-sectional shape as shown in FIGS. 3 and 4.
0, and an abutting part 11 notched at 45 degrees is formed at both ends of the split frame 10, and these split frames 10 are abutted at 90 degrees at the abutting part 11, and an L-shaped part is formed between them. The clip 12 is inserted to form a rectangular frame shape.

The divided frame 10 is, as shown in FIG.
A support plate portion 13 whose outer periphery is an overlapping surface 13a, and the support plate portion 1
The bottom plate part 14 extends inward from the bottom plate part 3, and the inner plate part 15 stands up from the bottom plate part 14, forming a substantially L-shaped cross section. A seal groove 16 is formed on the outer edge of the upper end of the support plate portion 13 for sealing between the joint surfaces 13a when the split frame 10 is joined to the split frame 10 shown by the dashed double-dashed line in the figure, and a joint piece to be described later is formed in the lower part. A connecting groove 17 is formed through which the split frame 30 is inserted to connect the two split frames 10, 10 together. Further, claw pieces 18 are provided on the support plate part 13 and the inner plate part 15 facing each other on the bottom plate part 14 so as to face each other, and an engagement groove 19 that engages with the clip 12 is formed in the lower part of the claw pieces 18. A support groove 20 for supporting the blower unit 8 or the filter unit 9 and for sealing between it and the split frame 10 is formed in the upper part.

As shown in FIG.
1 into the engagement groove 19 of the other split frame 10.
The frame-shaped divided frame unit 5 shown in FIG. 3 is assembled by inserting the two parts and sequentially butting the four corners together. This clip 12 is provided with a plurality of cut and raised tongue pieces 21 to prevent it from coming off the engagement groove 19. When the tongue pieces 21 are pressed from the grooves between the claw pieces 18 with a screwdriver or the like, the clip 12 is engaged. It can be easily removed from the groove 19.

Next, construction of a ceiling frame 7 using this split frame unit 5 will be explained with reference to FIGS. 1, 2, and 6 to 12.

As shown in FIG. 1, the divided frame unit 5
are connected singly or in a plurality, for example, in two rows, vertically and horizontally, a total of four, and in this state, each joint is connected by a hanger 6 and suspended from the raceway 3 via a turnbuckle 4.

First, as shown in FIGS. 6 and 8, when the adjacent split frames 10 of each split frame unit 5 are joined to each other, the connecting grooves 17
, 17 are connected by fitting a joint piece 30 having an H-shaped cross section. This fitting of the joint piece 30 may be done by fitting the joint piece 30 into one of the split frames 10 in advance as shown in FIG. 7, and then fitting the joint piece 30 into the connecting groove 17 of the other split frame 10. Alternatively, a notch hole may be formed in the bottom plate portions 14, 14, and the joint piece 30 may be inserted and fitted into the connecting groove 17 through the notch hole. Further, the seal grooves 16, 16 at the upper ends of the support plate parts 13, 13 of the overlapping divided frames 10, 10 are filled with liquid seal 22.

As shown in FIGS. 6 and 9, the hanger 6 includes a hanger main body 32 in which fixed joint plates 31 having an L-shaped cross section are connected in a cross shape, and a hanger body 32 that is provided facing each of the fixed joint plates 31 and joined together. It consists of a movable joint plate 34 for sandwiching the supporting plates 13 and 13 and connecting them with rivets 33, etc., and a cylindrical nut 35 screwed into the lower end of the turnbuckle 4 is provided at the center of the upper part of the hanger body 32. In addition to the fixed joint plates 31 connected in a cross shape, the hanger 6 uses a T-shaped hanger body 32a on the wall of the clean room 1 as shown in FIG. As shown in 11, the split frame units 5 are connected using an L-shaped hanger main body 32b.

To attach the split frame unit 5 to the ceiling of the clean room 1, as shown in FIG. At intervals, the raceways 3 are attached in parallel with the supports 36, and then the hangers 6 are suspended from the raceways 3 via the turnbuckles 4, and the short sides of the split frame units 5 are sequentially aligned along the partition board 2. In this case, the dividing frame 10a for edge fixing is joined in advance to the divided frame 10 on the partition 2 side, and these are connected by T-shaped and L-shaped hangers 6. Further, since the support 36 becomes an obstacle for the turnbuckle 4 from which the hanger 6 is suspended, a hanging metal fitting 37 is attached to the partition 2, and the hanger 6 is suspended from the hanging metal fitting 37 by a height-adjustable rod 38.

After the split frame units 5 have been installed in a line along the partition 2 in this way, the split frame units 5 are then sequentially aligned on the long sides of the split frame units 5, and the joints are successively connected using hangers 6. and hang it on raceway 3.

In this case, a plurality of split frame units 5 are connected together on the floor as shown in FIG. 1, and temporary hanging hooks 39 are attached to the combined units 5 as appropriate. By hooking the unit 5 on the raceway 3 to temporarily suspend the unit 5, the turnbuckle 4 can be connected and the height of the unit 5 can be easily adjusted.

Once the ceiling frame 7 has been constructed in this manner, the blower unit 8 is positioned on the ceiling frame 7 through the opening of each split frame unit 5, as shown in FIG. Fit and install. At this time, as shown in FIG. 9, the support grooves 20 of each split frame 10 of the split frame unit 5
Insert the gasket 40 into the
As shown in FIG. Furthermore, an engaging pawl 45 is provided at the upper end of the inner plate portion 15 of the split frame 10.
is formed, and a spring stopper 43 inclined inward from the lower end of the inner circumference of the lower edge 42 of the casing 41 engages with the engaging claw 45 of the inner plate portion 15 when the blower unit 8 is installed. , the blower unit 8 is prevented from floating.

After the blower unit 8 is attached to the split frame unit 5, the filter unit 9 is attached inside the blower unit 8. To attach the filter unit 9 to the blower unit 8, as shown in FIG. A stepped portion 51 is formed on the outer periphery of the filter case 50 , and after the filter unit 9 is inserted into the casing 41 of the blower unit 8 , the stepped portion 51 is seated on the upper edge of the support spring 44 to be attached. Further, a seal tank 52 is formed in the upper part of the filter case 50 of the filter unit 9, and when the filter unit 9 is installed, the seal piece 45 of the casing 41 is immersed in the seal tank 52, and the air blower unit 8 and the filter unit 9 are separated. It will be sealed.

Although the figure shows an example in which the blower unit 8 is attached, it is also possible to attach only the filter unit. In this case, the lower end of the filter case 50 is sealed and fitted into the support groove 20.

Next, clean room 1 partition 2
Figures 11 and 12 show the seal between the side and split frame unit 5.
This is explained by:

Partition 2 as shown in FIGS. 11 and 12
An edge-fastening split frame 10a is joined to the outside of the split frame 10 of the split frame unit 5 that is in contact with the split frame unit 5. A backup member 60 is attached to the inner side plate part 15a of this split frame 10a for edge fixing, and a silicone seal 61 for sealing between it and the partition 2 is provided below it. Furthermore, silicone 62 is filled in the support groove 20a of the split frame 10a for edge fixing, a wall plate 63 is attached to the partition 2, and the lower end of the wall plate 63 is connected to the silicone 62 in the support groove 20a.
Furthermore, a silicone seal 64 is applied between the upper end of the wall plate 63 and the partition 2.

Furthermore, in order to cover the joints between the divided frames 10, a slit cover 70 is attached which is inserted and fixed into the gap between the bottom plate parts 14 and 14, as shown in FIGS. 2, 8, 9, and 12. . Further, as shown in FIG. 2, a wiring cover 71 is appropriately attached using the space between the divided frames 10, and a fluorescent lamp 72 is attached to the cover 71.

[0029] In the above, the split frame units 5 are manufactured in advance with high precision in a factory, and by arranging them in sequence in the clean room 1 to form the ceiling frame 7, the installation dimensional accuracy during construction is greatly improved. With,
There is no dimensional error when attaching the blower unit 8, etc., and it can be easily attached, and the sealing therebetween can be made good.

[0030]

[Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.

(1) When assembling a ceiling frame on the ceiling of a clean room, split frame units are formed in advance at a factory or the like in a size that allows the filter unit to be attached to them, and these are sequentially aligned on site and superimposed together. Moreover, by hanging it from the ceiling with a hanger, the ceiling frame can be assembled easily and accurately.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing how a blower unit and the like are attached to the ceiling frame in FIG. 1;

FIG. 3 is a plan view showing a divided frame unit in the present invention.

FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is an enlarged view of main parts showing the assembly of the split frame unit in FIG. 3;

FIG. 6 is an enlarged perspective view of a main part of a joint portion of the split frame unit in FIG. 1;

FIG. 7 is a bottom view showing how the divided frame units in FIG. 6 are connected.

FIG. 8 is a bottom view of FIG. 6;

9 is a sectional view taken along the line IX-IX in FIG. 6. FIG.

FIG. 10 is a sectional view of a main part of the present invention in which a blower unit is attached to a split frame unit.

FIG. 11 is an enlarged perspective view of a main part of a ceiling frame at a corner of a clean room in the present invention.

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11;

[Explanation of symbols]

1 Clean room 5 Split frame unit 6 Hanger 10 Split frame

Claims (2)

[Claims] Claim 1: In a method of constructing a ceiling frame for supporting a filter on the ceiling of a clean room, a number of divided frame units are formed in a frame shape to surround a filter unit to be installed, and these divided frame units are sequentially installed in the clean room. The split frames of adjacent split frame units are aligned with the ceiling and connected together to form a ceiling frame, and the joints of the adjacent split frame units are suspended from the ceiling using hangers. Clean room ceiling frame construction method. 2. A ceiling frame structure for supporting a filter on the ceiling of a clean room, comprising: a split frame unit formed in a frame shape to surround an attached filter unit and having a joint surface on the outer periphery; and the split frame unit. Align each split frame unit with the connecting groove formed in the split frame and the joint piece that engages with the connecting groove of the adjacent split frame to join both split frames together when the split frame units are aligned. A ceiling frame structure characterized by being equipped with a hanger that suspends the joints of each unit from the ceiling when the units are suspended.