JPH0133190Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an air shower, in particular, the opening shape of the nozzle is formed into a slit-like elongated vertically, and the nozzle is oscillated to generate a high-speed air flow blown out from the slit. Apply it evenly to clothing and items to evenly remove dust adhering to clothing and items.

Conventional air shower nozzles have a circular or square opening with a small difference between the vertical diameter and the horizontal diameter, and the opening area is also small. Therefore, with such conventional air showers, the blowing area of the high-speed airflow is small, so there is a problem that it is difficult for the high-speed airflow to uniformly hit people and goods. There was a problem in which the posture and orientation of the human body and items had to be changed. Therefore, if the conventional air shower is used when people or goods enter a clean room where the interior is maintained in a highly clean atmosphere, the cleanliness of the clean room may deteriorate due to residual dust on clothing or goods, or This results in a problem in that the time for people and goods to enter the clean room is delayed, and the working time in the clean room is restricted.

This invention was made to solve the above-mentioned conventional problems, and the purpose of this invention is to uniformly remove dust adhering to clothes and articles; The purpose is to remove dust within a short time.

That is, this invention, as shown in the illustrated embodiment, is an air shower equipped with a nozzle 1 that blows out a high-speed air stream toward a human body or an article in order to remove dust attached to clothing or articles. The opening 2 is formed into a long and narrow slit shape.
A nozzle 1 arranged so that its length direction faces in the vertical direction is mounted so as to be swingable about a shaft extending in the vertical direction, and a swinging mechanism 14 for swinging the nozzle 1 is connected to the nozzle 1. The present invention relates to an air shower characterized by:

This invention will be explained below with reference to illustrated embodiments. 1 to 4 are diagrams showing the first embodiment of this invention, FIG. 1 is a plan cross-sectional explanatory diagram showing its outline, and FIG. 2 is a vertical cross-sectional explanatory diagram taken along the line - in FIG. 1. It is.

First, to explain the configuration, 3 is an air shower room, which has a planar quadrilateral partitioned by walls 3a, and is provided with a diagonally opposing blowout chamber 4, and another diagonally opposing suction chamber. 5 is provided. A filter 7 and a fan 8 are installed above the ceiling 6, and the air in the suction chamber 5 is sucked into the fan 8 through the filter 7, and the fan 8 blows it out toward the blowout chamber 4. It is configured. A nozzle 1 for blowing out clean air is provided on the front side of the blowout chamber 4, and a suction port 9 is opened at the lower front side of the suction chamber 5. Reference numerals 10 and 11 are entrances and exits of the air shower room 3, one of which faces the outside, such as a hallway;
The other side faces the entrance of the clean room, 10a, 1
1a indicates the doors of the entrances and exits 10 and 11.

The nozzle 1 has an opening 2 shaped like an elongated slit, and in this embodiment, the opening 2 is vertically elongated and extends from near the ceiling 6 to near the floor 12. Regarding this nozzle 1, the third,
This is shown in detail in Figure 4. That is, the pipe 13 is installed vertically between the ceiling 6 and the floor 12. A machine room 15 is provided above the ceiling 6, in which the filter 7, the fan 8, and a swing mechanism 14 (to be described later) are installed. Swing shaft 1 fixed at the top end
The upper end of 7 is rotatably supported. Also, floor 12
The lower end of a shaft 19 fixed to the lower end of the tube 13 is rotatably supported by a bearing 18 fixed to the bearing 18 . 20 is a partition wall for partitioning the blowout chamber 4 in the air shower room 3, and a synthetic resin sealing material 21 is fixed to this partition wall 20.
The pipe 13 is in sliding contact with the sealing material 21, and the pipe 1
Air in the blow-off chamber 4 is prevented from leaking between the blow-off chamber 3 and the partition wall 20.

The nozzle 1 is fixed to the tube 13. Nozzle 1
The opening 2 has a vertically elongated shape as described above, and the opening 2 faces toward the center of the air shower room 3, and the opposite side faces into the blowout chamber 4. The outlet chamber 4 side of the nozzle 1 is widened as shown in FIG. 4 to receive the air blown out by the fan 8. 1a is its widened portion, and the plane cross section of the entire nozzle 1 is funnel-shaped.
The nozzle 1 swings about the axis of the tube 13, and the center of the swing is parallel to the longitudinal direction of the opening 2 of the nozzle 1.

A swing arm 22 is fixed to the swing shaft 17 fixed to the tube 13, and a rod 24 whose length is adjustable is attached to the free end of the swing arm 22 via a pin 23.
One end of the rod 24 is pivotally connected, and the other end of the rod 24 is connected to the pin 2.
The motor 26 is pivotally connected to the disc 27 of the motor 26 via the motor 5.
The pin 25 is located at an eccentric position of the disc 27 and
7 is fixed to the output shaft 26a of the motor 26.
The motor 26 is a variable motor, and its rotation speed can be controlled steplessly. The motor 26 is fixed to the wall 3a of the air shower room 3, and its rotation causes the swinging arm 22 to swing, thereby rotating the swinging shaft 1.
7. Swing the nozzle 1 together with the tube 13. Thus, the motor 26, disc 27, rod 24, pin 2
3, 25 and the swing arm 22 constitute the swing mechanism 14. Note that W indicates the direction of the wind blown out from the nozzle 1.

Next, the action will be explained.

When the fan 8 is operated, a suction force and a blowing force are generated in the fan 8. Air is blown out by the blowing force of the fan 8 and supplied into the blowing chamber 4, and the air pressure inside the blowing chamber 4 increases. Therefore, the air in the blowout chamber 4 is introduced into the nozzle 1 from the widened portion 1a of the nozzle 1, and is blown out from the opening 2 of the nozzle 1 toward the center of the air shower room 3. Since the opening 2 of the nozzle 1 is in the shape of a vertically long slit, the wind immediately blown out from the opening 2 becomes an airflow having a long vertical cross section in the vertical direction like the opening 2. Also, due to the suction force of the fan 8, the air in the center of the air shower room 3 is sucked into the suction chamber 5 from the suction port 9,
It passes through the filter 7 and is sucked into the fan 8. Thus, the air throughout the air shower room 3 is repeatedly circulated as described above.

Further, when the disc 27 rotates due to the rotation of the motor 26 and the pin 25 swings on a circular orbit, the rod 2
4 moves back and forth to the left and right in FIG. 3 while swinging. As a result, the swing arm 22 swings, and the swing shaft 17, the tube 13, the shaft 19, and the nozzle 1 swing together with it. The swing angle θ of the nozzle 1 is, for example, 60
Set it once. This swing angle θ is set by changing the mounting position of the pin 25 relative to the disk 27 by making it variable in the radial direction. In addition, the swing arm 22 of the rod 24
It is preferable that the plane angle is approximately 90 degrees or around 90 degrees. This is because this angle allows the forward and backward force of the rod 24 to be sufficiently transmitted as the swinging force of the swinging arm 22. Due to the swinging of the nozzle 1, the direction in which the air is blown also changes by an angle θ. For this reason, since the nozzle 1 opening 2 has a vertically long slit shape, the wind hits the human body from the head to the feet, for example, and also hits the human body in the width direction due to the swinging of the nozzle 1. As shown in Figure 2, since the nozzles 1 are located at two diagonal corners of the air shower room 3, air is blown out all around the human body that has entered the center of the air shower room 3, and this air blows out the clothes. Adhering dust can be removed uniformly.

FIG. 5 illustrates the planar cross-sectional shape of the nozzle 1, and in addition to the first embodiment, FIGS.
They may also have the planar cross-sectional shapes shown in FIG. That is, A is a partition wall 20, a swinging parallel vertical plate 30,
31 are pivotally connected, and the nozzle 1 is formed by these vertical plates 30 and 31. B is a vertically long rocking body 32 having a semicircular planar cross section, and a vertically long slit-shaped rocker 32.
3 to form the nozzle 1. Although not shown, these nozzles 1 are also connected to a mechanism similar to the swing mechanism 14 of the first embodiment.

Note that the nozzle 1 shown in FIGS. 1 to 5 has an opening 2
is facing horizontally, and therefore the wind direction W is also facing horizontally, but the air shower room 3, where the nozzle 1 is installed, is shaped like a tunnel, through which people and goods pass. Occasionally, airflow may be blown from the left and right sides of the person or item, and if necessary, from above. In this case, nozzle 1
In this case, the person or item moves without rocking as in the above embodiment, so the airflow hits the entire person or item.

As explained above, according to this invention, the opening shape of the nozzle is elongated in the form of a slit, and is long in the vertical direction, so that it can be used to cover people or items from the top to the bottom, such as from the head to the feet. High-speed airflow hits the entire area. Therefore, dust adhering to clothing and items can be removed uniformly, and since the high-speed airflow hits the entire person and item, dust can be removed in a short time. In particular, according to this invention, since the vertically long nozzle swings in the horizontal direction, there is no need to move left and right in front of the nozzle in order to apply high-speed airflow to people or items across the width. The effect is that when a person stands or places an item on the floor, high-speed airflow is applied in the vertical and width directions to efficiently remove dust.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of a plane cross section showing an embodiment of this invention, Fig. 2 is a schematic diagram of a vertical cross section taken along the - line in Fig. 1, and Fig. 3 shows the main parts of Fig. 1. A vertical sectional view, FIG. 4 is a sectional view taken along the line - in FIG. 3, and FIG. 5A is a schematic plane sectional view showing another example of the nozzle.
FIG. 5B is a schematic plan cross-sectional view showing still another example of the nozzle. In the figure, 1 indicates a nozzle and 2 indicates an opening.

Claims (1)

[Scope of utility model registration request] In an air shower equipped with a nozzle that blows out a high-speed air stream toward a human body or an item in order to remove dust attached to clothing or items, the opening is formed into an elongated slit shape, and the length direction of the opening is in the vertical direction. An air shower characterized by having a nozzle arranged so as to face , which is attached to be swingable about a shaft extending in the vertical direction as a swing center, and further connected to the nozzle with a swinging mechanism that causes the nozzle to sing.