JPH0510932U - Air shower device - Google Patents

Abstract

(57) [Summary] [Objective] The main body of the air shower device 45 is divided into a plurality of main constituent members that can be assembled in the field, and restrictions on the carry-in space are avoided. A pair of wall units 31 and 33 in which a jet airflow blowing means 13 is provided upright to face the floor of an installation place, and a suction port 34 of the jet airflow blowing means 13 is provided in a recessed manner. Paired wall unit 3
The top plate unit 35, which is attached to the upper parts of the first and the third parts 33, and whose connecting portion with the inner wall surface is the curved corner part 40 for preventing the retention of the airflow, and the both end faces of the wall units 31 and 33. Attached to this pair of wall units 31, 3
3, a door unit 36 for entering a room, which forms a box-shaped space with the top plate unit 35, and a door unit 37 for a clean room, which are assembled and divided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air shower device provided at the entrance of a clean room.

[0002]

[Prior Art]

 The clean room entrance is equipped with an air shower device that removes dust from the people entering the room and carried-in items to prevent dust from entering the clean room. This air shower device can be shielded from the outside of the clean room as much as possible and the inside of the clean room, and becomes an independent space.

A conventional air shower device will be described with reference to FIGS. 5 and 6. FIG. 5 is a front view showing a part of the air shower device seen from the entrance side, and FIG. 6 is a front view showing a wall surface inside the air shower device.

As shown in FIG. 5, an aluminum sash door 3 for entering a room into the air shower device is attached to the wall of the box-shaped body 1 which is integrated. An aluminum sash door 5 for entering the clean room is attached to the other wall of the main body 1 facing the aluminum sash door 3 (see FIG. 6). Therefore, by closing the aluminum sash door 3 and the aluminum sash door 5 completely, the inside of the main body 1 becomes an independent space. Since the top plate of the main body 1 is in contact with the upper end surface of the wall, the connecting portion between the inner wall and the top plate is the corner 7 sandwiched between the two surfaces that directly intersect each other. The aluminum sash doors 3 and 5 are attached to the wall of the main body 1 via an aluminum door frame 9, and the main body 1 and the aluminum sash doors 3 and 5 are integrated (not removable). Commercially available aluminum sash doors 3 and 5 are used, and the colors, cylinder locks, hinges, door closers, etc. are specified. Further, a floor plate 11 is laid on the bottom of the main body 1, and a mat switch 12 and the like are provided on the floor plate 11. Therefore, a step is formed between the floor surface of the main body 1 and the external floor surface.

As shown in FIG. 6, a plurality of air jet nozzles 13, which are jet air flow blowing means, are provided on the inner wall surfaces of the left and right walls adjacent to the walls on which the aluminum sash doors 3 and 5 are attached. .. The air sent from the turbo fan 15 is discharged from the air jet nozzle 13 through the main filter 17 (see FIG. 5). A pre-filter 19 that is flush with the inner wall surface is provided below the inner wall surface where the air jet nozzle 13 is provided, and intake air of the turbo fan 15 is sucked from the pre-filter 19. That is, the air discharged from the air jet nozzle 13 is sucked from the pre-filter 19 and circulates in the main body 1, and at that time, dust mixed in the circulating air is removed by the pre-filter 19 and the main filter 17. It has become.

[0006] Therefore, for the person entering the air shower device and the carried-in object, dust is blown off by the jet air (jet air flow), and after the cleanliness is improved, only the aluminum sash door 5 on the clean room side is opened. By entering the clean room, it is possible to prevent dust from being brought into the clean room.

[0007]

[Problems to be solved by the device]

 However, in the conventional air shower device, since the main body 1 has an integrated structure, the space required for the carry-in route may be large, the place where it can be installed may be restricted, and the product weight also becomes large, so carry-in The installation work required manpower. Further, since the floor plate 11 is laid on the bottom of the main body 1, discomfort may occur when entering the room in the air shower device, and in some cases, there may be a hindrance to the passage of the hand truck or the automatic carrier truck due to FA. there were. Further, the fact that the floorboard 11 is provided is also a reason why cleaning becomes difficult. In addition, since the aluminum sash doors 3 and 5 are commercially available products, they may not be in harmony with other architectural doors in terms of design, resulting in a sense of discomfort, poor sound insulation, and the operating noise of the turbo fan 15 to the outside. There was a risk of noise, and it was not possible to ensure sufficient air tightness. Further, since the connecting portion between the inner wall and the top plate in the main body 1 is the corner portion 7, a dead angle of jet air is generated and the pre-filter 19 is provided in the same plane as the inner wall surface. There was a problem that the air during suction was disturbed.

In addition, the structure of the main body 1 has to be greatly changed when the type of door is changed, the effective width of passage is increased, the number of people entering the room is increased, or the automatic door is attached. The increase in manufacturing cost was inevitable.

The present invention has been made in view of the above situation, and it requires a small space for carrying in, can ensure airtightness and sound insulation, does not cause a blind spot of jet air, and has little air turbulence. Moreover, the aim is to provide an air shower device that can be handled at low cost even when making a custom order.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, the structure of the air shower device according to the present invention comprises a jet air flow blowing means provided on each of the inner wall surfaces which are erected upright and face each other on the floor of the installation place. A pair of wall units, in which the suction port of the air flow blowing means is recessed in the lower part of the inner wall surface, and a connection part with the inner wall surface, which is mounted over the upper parts of the pair of wall units, has a curved corner portion. And a door unit for a clean room, which is attached across both end faces of the pair of wall units to form a box-shaped closed space with the pair of wall units and the top unit, and a clean room door It is characterized by consisting of a unit.

[0011]

[Action]

 The main unit is loaded with the wall unit, the top panel unit, the entrance door unit, and the clean room door unit divided, and the space required for the import path is reduced. The floor of the installation site is also used, and there is no step between the inside and outside of the body. The air flow in the main body flows along the curved surface of the corner, and the air flow does not stay in the corner. The intake air of the jet airflow blowing means flows in a rectified state just before the inner wall surface, so that the intake airflow in the main body is not disturbed.

[0012]

【Example】

 Hereinafter, a preferred embodiment of an air shower device according to the present invention will be described in detail with reference to the drawings. 1 is an exploded perspective view of the air shower device according to the present invention, FIG. 2 is a front view of the air shower device according to the present invention seen from the entrance side, and FIG. 3 is a cross-sectional view showing an airtight unit, FIG. 4 is a front view showing a wall surface inside the air shower device according to the present invention. The same members as those shown in FIGS. 5 and 6 are designated by the same reference numerals, and a duplicate description will be omitted.

As shown in FIG. 1, an air jet nozzle 13, which is a jet air flow blowing means, is provided on the inner wall surface of a wall unit 31 forming one side wall, and the air jet nozzle 13 extends from the wall unit 31 to the wall unit 31. Jet air (jet air flow) is discharged from the internal turbo fan 15 through the main filter 17 (see FIG. 2). The wall unit 31 is provided with a wall unit 33 that faces the other side wall and the wall unit 33 is also provided with an air jet nozzle 13, a turbo fan 15, and a main filter 17. The same effect is achieved. At the bottoms of the wall units 31 and 33, kicking portions 34, which are suction ports retracted from the inner wall surface, are provided, and the intake air of the turbo fan 15 is sucked from the kicking portions 34. The intake air sucked from the kick-in portion 34 retracted from the inner wall surface flows in a rectified state until just before the inner wall surface so that the air flow is not disturbed. The wall units 31 and 33 are made of steel fittings in order to enhance sound insulation. Further, since the lower portions of the wall units 31 and 33 are directly installed on the floor of the installation place, the floors of the wall units 31 and 33 are the same as the floor of the installation place. Therefore, the hand truck or the like can pass between the wall units 31 and 33 smoothly without passing through a step. The space between the lower portions of the wall units 31 and 33 and the floor at the installation location is naturally sealed with a sealing material or the like.

A top unit 35 is attached to the upper portions of the wall units 31 and 33 installed facing each other by site construction (see FIG. 2). A corner 40 sandwiched between the inner wall surface and the inner wall surface is formed into a curved surface. In other words, it has a shallow pocket, and the structure is such that jet air blind spots do not easily occur. The top panel unit 35 is configured by using a steel fitting in order to enhance sound insulation. By attaching the top plate unit 35, the wall units 31 and 33 have a gate-shaped integrated structure, and a space is formed inside.

As shown in FIG. 1, an entrance door unit 36 and a clean room door unit 37 are installed at the site on the opening side of the gate-shaped wall units 31 and 33 that are integrated by a top plate unit 35. It is designed to be attached by construction. The entrance door unit 36 and the clean room door unit 37 use steel fittings in harmony with other architectural designs, and have a so-called semi-tight structure with high airtightness. A swing airtight unit 39 is provided below the clean room door unit 37 as shown in FIG. The swing airtight unit 39 is provided with a movable seal piece 41, and the movable seal piece 41 can always keep close contact with the floor surface according to the opening / closing operation of the clean room door unit 37. Further, as shown in FIG. 4, the entrance door unit 36 can be connected to the lightweight partition wall 43, and the clean room door unit 37 can be attached to the entrance of the clean room.

An air shower device 45 according to the present invention is configured with the wall units 31 and 33, the top plate unit 35, the entrance door unit 36, and the clean room door unit 37 as main members.

According to the air shower device 45 of the present embodiment, since steel fittings are used for the main body, the sound insulation is excellent, and the operation noise of the turbo fan 15 does not leak to the outside, and the noise of the noise is reduced. It can be prevented. Further, since the entrance door unit 36 and the clean room door unit 37 have a semitight structure, the airtightness can be kept high, and the inside of the air shower device 45 can be a so-called air lock room. Further, since the entrance door unit 36 uses a steel fitting, it can be harmonized with other building doors, and can be designed in accordance with the construction.

Further, when the air shower device 45 according to this embodiment is desired to be manufactured as a custom-made product, it has the following excellent points. That is, when changing the type of door or combining automatic doors, the main body does not need to be changed and only the door needs to be changed. When it is desired to change the effective passage width, only the top plate unit 35 and the door need be changed. If you want to increase the number of people entering the room, you can increase the number of basic units of the wall units 31 and 33 and the top plate unit 35 by the number of people, and you can easily increase the stable quality at low cost. If you want to use the floor type, only the floor part can be manufactured and installed. When it is desired to improve the airtightness and the sound insulation, it can be easily realized by providing the swing airtight unit 39 in the entrance door unit 36 as well.

[0019]

[Effect of the device]

 As described in detail above, the air shower device according to the present invention is assembled from the five constituent members of the divided wall unit, the top plate unit, the entrance door unit, and the clean room door unit. It occupies a small space and can eliminate installation restrictions due to restrictions on import routes. In addition, since there is no step between the floor inside the main body and the floor outside, it is possible to pass a hand truck, etc. very smoothly. Furthermore, since the blind spots of the airflow at the corners are eliminated, the airflow does not stay and the cleanliness can be improved. Further, since the intake air of the jet air flow blowing means flows in a straightened state up to immediately before the inner wall surface, and the intake air flow is not disturbed, the circulation efficiency of the jet air flow can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an air shower device according to the present invention.

FIG. 2 is a front view of a part of the air shower device according to the present invention seen from the entrance side.

FIG. 3 is a cross-sectional view showing an airtight unit.

FIG. 4 is a front view showing a wall surface inside the air shower device according to the present invention.

FIG. 5 is a front view of a part of the conventional air shower device seen from the entrance side.

FIG. 6 is a front view showing a wall surface in a conventional air shower device.

[Explanation of symbols]

13 Air Jet Nozzle (Jet Air Flow Blowing Means) 31 Wall Unit 33 Wall Unit 34 Kicking Part (Suction Port) 35 Top Plate Unit 36 Entry Door Unit 37 Clean Room Door Unit 40 Corner 45 Air Shower Device

Claims (1)

[Claims for utility model registration] [Claim 1] Jet airflow blowing means is provided on respective inner wall surfaces that are erected facing each other and opposed to the floor of the installation location, and the suction port of the jet airflow blowing means is the above-mentioned. A pair of wall units recessed in the lower part of the inner wall surface; a top plate unit mounted across the upper parts of the pair of wall units and having a connection portion with the inner wall surface that is a curved corner; An air inlet comprising a door unit for a clean room and a door unit for a clean room, which is attached across both end faces of the wall unit to form a box-shaped closed space by the pair of wall units and the top plate unit. Shower device.