JPH05288380A - Air shower apparatus - Google Patents

Abstract

PURPOSE:To reduce an operator's load and to uniformly clean by evenly diffus ing the air from an air injection port to an entire operator while a working base for placing the operator is slowly rotated once or twice. CONSTITUTION:A stair tread 19 is rotated at a slow speed of the degree in which an operator placing on it does not feel giddy, and stopped when it is rotated once. If cleanness is required, it can be rotated with more time in the degree to be stopped when it is rotated twice. A blower is operated while the tread 19 is rotated, and clean air is diffused from an air injection port 15 to the operator on the tread 19. Since the operator is slowly rotated in a state that he is stopped on the tread 19, it is not necessary to alter a direction so that the air is diffused to the entire operator as prior art. Accordingly, clean injection air is uniformly brought into contact with the entire operator automatically in a state that he is stood on the tread 19 in a room, and dust adhered to operator's clothing, etc., can be removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air shower device which is provided at a doorway of a clean room and removes dust adhering to clothes of the worker by blowing clean air when the worker enters the clean room. is there.

[0002]

2. Description of the Related Art In the conventional air shower apparatus, when an operator enters the air shower room, a photoelectric switch or the like senses the operator's entry into the room, and a large number of air jets on both sides of the room clean the air shower apparatus simultaneously. Pressurized air is ejected and blown to the worker in the room, and dust and the like adhering to the worker is removed by the ejected air. Then, the worker who entered the room changes the direction in various directions while the air is ejected so that the ejected air hits the air uniformly.

[0003]

In the above-described conventional air shower device, unless the operator turns in various directions in the air shower chamber, the blown air does not hit the entire circumference of the worker evenly. Therefore, there is a problem whether cleaning is always performed even after passing through the air shower room, and the cleanliness of the worker varies depending on individual differences among workers and the situation when the same worker enters the room. The present invention solves the above-mentioned problems, and even if the worker who has entered the air shower chamber is stopped, the air jet is evenly distributed around the entire circumference of the worker, thus causing unevenness of cleanliness due to individual differences. The lost air shower device is provided.

[0004]

DISCLOSURE OF THE INVENTION The gist of the present invention is to have air ejection ports on both sides of a room, and when a worker enters the room, clean pressurized air is ejected from the air ejection port. In an air shower device for removing dust adhering to clothes of a worker, when the worker enters a room, air is ejected from an air ejection port, and a footrest for mounting the worker on the floor is slowly rotated, The air shower device is characterized in that the rotation of the step is stopped when it is rotated 1 / or 2 times, and the jet of air from the air jet is uniformly sprayed on the entire surface of the operator. When the rotation stops and the ejection of air from the air ejection port also stops, the door on the exit side is automatically opened.

[0005]

Since the present invention has the above-mentioned structure, the worker who has entered the air shower chamber is automatically rotated once or twice while the air is ejected by the rotation of the step. For this reason, the blown air is evenly distributed around the entire circumference of the worker, and the clean air is blown out uniformly. Therefore, it is not necessary for the worker to change the direction in various directions in the room, and uniform cleaning can be performed only by standing on the step. Also, when the rotation of the platform stops and the ejection of air also stops, the door on the exit side automatically opens, so it is sufficient to proceed from the position where the platform was stopped to the front, and the mental state of the worker entering the room The work load is reduced. Further, since the cleaning work time in the air shower room is constant, uniform cleaning can be performed.

[0006]

1 and 2 show an embodiment of the present invention.
Shows a plan view and FIG. 2 an elevation view. The air shower chamber 10 has a box shape, has an entrance side door 11 on the front side and an exit side door 12 on the rear side, and blows clean pressurized air to the inside of the room 14 by the blowers 22 on both sides. A large number of spouts 15 are provided vertically. As shown in FIG. 2, the ejection ports 15 are arranged so that the axes are different on both sides. Therefore, the air flow smoothly flows without collision, and is uniformly hit by the worker, so that the cleaning effect is excellent. Also in terms of the blast power, it is possible to obtain a sufficient cleaning effect with a small amount of air blown out, so a small amount of air blown out is sufficient, and it is possible to make the blower and the filter small and to make a compact device.

On the ceiling, lighting 16 and photoelectric switch 17
And a step 19 which is rotatable via a drive source 18 is provided on the floor. The clean air jetted from the jet outlets 15 on both sides is blown to the worker on the step, and the dust that has been removed passes through the filter 21 from the exhaust port 20 at the bottom of the floor or wall surface to remove the dust, and again. Only clean air is sent to the pressure chamber 13 by the blower 22. The air flow circulates in this way.

Next, the operation of each section will be described. The front and rear doors 11 and 12 are hinged doors that automatically open and close. When entering a room, for example, when an operator touches the outside of the front entrance door 11, the door 11 opens to the room 14 side. When an operator touches the outside of the rear door 12, the door 12
Opens to the room 14 side. In this way, by simply touching the outside of the door from both the entrance and exit, the door opens and you can enter the room. At this time, the open door and the opposite door are closed.

The operator opens the entrance side door 11 and opens the room 14
When the passenger enters the entrance platform 19 and closes the door 11, the photoelectric switch 17 operates and the blower 22 operates, so that clean pressurized air is simultaneously jetted from the large number of jet outlets 15 on both sides of the room. Then, the platform starts to rotate slowly. The switch for detecting that the operator has stepped on the step may be a pressure switch or the like provided under another step for detecting the weight of the operator.

The rotation speed of the platform is slow enough to prevent the operator from turning his / her eyes, and the rotation speed is 360 degrees (1 rotation).
Then it stops. If cleanliness is required, take time 7
You may make it 20 degrees (two rotations). The blower 22 is operated while the step 19 is rotating, and clean air is blown to the worker on the step. Since the worker slowly rotates while stopped on the platform 19, it is not necessary to change the direction so as to hit the whole as in the conventional case, and the mental burden is reduced. When the platform 19 rotates once or twice, the platform stops and the ejection of air from the ejection port 15 also stops. After that, the door 12 on the exit side is the air shower room 10
The worker goes out by opening it outside (clean room side). Then the door 12 is closed. That is, enter the clean room.

When leaving the clean room,
When the outside of the exit side door 12 is touched with the hand, the exit side door 12 opens to the side of the room 14 and the exit door 12 is closed by sensing that the worker enters the room. After the exit door 12 is closed, the entrance side door 11 is opened so that the worker can exit the air shower chamber 10. When the room is first entered through the exit side door 12, the step 19 is not rotated and the blower is not activated. Therefore, the outside air is blocked by the air shower room in the clean room, and no dirty air enters.

[0012]

As described above, in the air shower device of the present invention, even when the operator stands still on the step on the floor in the room, the entire surface of the worker is automatically and uniformly sprayed with clean jet air, so that uniform jet air is provided. It can be cleaned. After cleaning, it is sufficient to proceed as it is. Therefore, the burden on the operator is lightened and the cleaning time is constant, so uniform cleaning can be performed.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is an elevational view of an embodiment of the present invention.

[Explanation of symbols]

 10 Air Shower Room 11 Entrance Side Door 12 Exit Side Door 14 Room 15 Spout 16 Lighting 17 Photoelectric Switch 18 Drive Source 19 Step 20 20 Exhaust Port 21 Filter 22 Blower

Claims (2)

[Claims] 1. Dust adhering to clothes, etc. of an operator, which has air outlets on both sides of the room, senses an operator entering the room, and ejects clean pressurized air from the air outlet. In the air shower device for removing the air, when the worker enters the room, air is ejected from the air ejection port, and the footrest provided on the floor on which the operator is placed is slowly rotated, and when the footrest is rotated once or twice, the rotation of the footstep is rotated. Is stopped, and the jet of air from the air jet is sprayed evenly on the entire surface of the worker. 2. The air shower device according to claim 1, wherein the door on the outlet side is automatically opened when the rotation of the stepping plate is stopped and the ejection of air from the air ejection port is also stopped. ..