JPH05516Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention utilizes a retractable tent house to prevent the intrusion of dust that occurs when the entrance for carrying goods is opened when carrying goods in and out of a factory building, etc. Relating to a device for preventing.

<Prior art and its problems> Warehouses, hangars, and factories that handle product finishing processes are particularly required to have a clean working atmosphere.

However, currently no special measures have been taken to prevent this, and when the entrance for carrying goods is opened, outdoor dust enters the working atmosphere inside the factory. The present invention was developed with the aim of providing a device that completely prevents the intrusion of dust.

<Means for Solving the Problems> The inventors of the present invention have conducted various studies, and have developed an entrance for carrying goods into factory buildings, etc., which can be easily and inexpensively installed using a bellows-type retractable tent house. We have developed a dust intrusion prevention device. The device of the present invention is
The opening at one end of the bellows-type tent 3 is airtightly connected to the goods loading/unloading entrance 2 of the factory building 1, etc. inside the factory building, etc., and the opening at the other end is large enough to close this opening. The curtain 4 is installed, and the bellows type tent 3 and the curtain 4 are airtight between the internal atmosphere of the factory building 1 etc. and the external atmosphere of the factory building 1 etc. when the bellows type tent 3 is extended and the curtain 4 is closed. It is characterized by having been installed.
As a specific means for making the bellows-type tent 3 and the curtain 4 airtight, the bellows-type tent 3 has a sealing device 5a on the ground side that seals the gap between the bellows-type tent 3 and the ground. curtain 4
The bellows-type tent 3 side includes a sealing device 5a for sealing the gap with the ground when the curtain 4 is closed, and a sealing device 5b for sealing the gap between the bellows-type tent 3. .

The article loading/unloading entrance 2 is equipped with an opening/closing door 6 such as a shutter.

<Function> As mentioned above, since the bellows-type tent 3 is installed at the article loading/unloading entrance 2, the internal atmosphere of the factory building 1 etc. and the external atmosphere are kept airtight even if the article loading/unloading entrance 2 is opened. This prevents dust in the external atmosphere from entering the internal atmosphere. That is, to explain using the explanatory diagrams shown in FIGS. 1 to 3 showing the procedure for using the device of the present invention, when goods are brought into the factory building 1 from the outside,
As shown in FIG. 1, the bellows-type tent 3 is extended, the opening is hermetically closed with a curtain 4 attached to the opening at one end, and then the article loading/unloading entrance 2 of the factory building 1 is opened. After carrying the articles into the bellows-type tent 3 as shown in FIG. 2, the article carrying-in/out entrance 2 is closed. After closing the article entrance/exit 2, as shown in FIG. 3, the curtain 4 is opened, the bellows-type tent 3 is retracted, and the articles are moved to a predetermined location within the factory building. When exiting workers, vehicles, etc., or transporting goods to the outside of the factory building, follow the reverse procedure. In this way, the internal atmosphere is always airtightly separated from the external atmosphere by the goods carrying-in/out entrance 2 or the bellows-type tent 3 and the curtain 4, and dust in the external atmosphere enters the internal atmosphere of the factory building 1, etc. It is possible to prevent this from happening.

<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 4 is a perspective view showing the bellows-type tent and curtain shown in FIGS. 1 to 3. FIG. Figures 5 and 6
The figure is an explanatory diagram showing the sealing device attached to the fourth illustrated example, FIG. 7 is a perspective view showing the bellows-type tent in a retracted state, and FIG. 8 is a perspective view showing the same in an extended state.

As shown in Fig. 1 or 2, the dust intrusion prevention device of the present invention at the entrance/exit of articles in a factory building, etc.
A curtain of a size sufficient to airtightly connect the opening at one end of the bellows-type tent 3 to the goods loading/unloading entrance 2 of the factory building 1, etc. inside the factory building, etc., and to close the opening at the other end. 4, and when the bellows-type tent 3 and curtain 4 are extended and the curtain 4 is closed, the bellows-type tent 3 and the curtain 4 are
The internal atmosphere of the factory building 1, etc. and the external atmosphere of the factory building 1, etc. are airtightly installed. Figure 1~
In FIG. 3, the wall portion of the bellows-type tent 3 is omitted for convenience of illustration, but the ceiling portion and wall portion are integrally formed as shown in FIG. 4.

As shown in FIGS. 4 and 8, a curtain 4 is attached to one end opening of the bellows-type tent 3 so as to be open on both sides. Hereinafter, the curtain side will be referred to as the gable side, and the wall side of the bellows-type tent 3 will be referred to as the girder side. As shown in Figure 7, the bellows-type tent 3 that is contracting in the direction of the girders is
Stretch it as shown in the figure, and then spread the curtains 4 on both sides toward the center as shown by the arrows to close the opening. At this time, gaps are likely to occur at the dotted line in FIG. Dust from outside will enter. Therefore, in this embodiment, the bellows-type tent 3 is provided with a sealing device 5a (see FIG. 5) on the ground side for sealing the gap between the bellows-type tent 3 and the ground, and the curtain 4 is provided with a sealing device 5a (see FIG. 5) for sealing the gap between the bellows-type tent 3 and the ground. Sealing device 5a that seals the gap with the ground during blockage
A sealing device 5b for sealing the gap between the bellows-type tent 3 and the bellows-type tent 3 is provided on the side of the bellows-type tent 3 to completely prevent dust from entering through the gap.

FIG. 5 shows a sealing device 5a on the girder side of the bellows-type tent 3, which is a sealing device 5a on the girder side sheet 10 of the bellows-type tent 3 that hangs down from the side of the upright base part B of the tent.
is rotated in the direction of the foundation part B using a shaft 11 provided on the ground side, and the girder side sheet 10 is moved to the side of the foundation part B.
This is a method of holding down the A girder hem sheet 12 having the same length as the girder length of the bellows-type tent 3 is attached to the outside of the sealing device 5a to further improve airtightness (see FIG. 4). In addition, the reference numeral 13 in the figure is a frame of the girder side seat 10, the reference numeral 14 is a wheel for moving the girder side seat 10, and the reference numeral 15 is a running rail for the wheel 14.

FIG. 6 shows the sealing devices 5a and 5b on the wife side,
The sealing device 5a seals the gap between the ground and the curtain 4. In this case, the sealing device 5a seals the gap between the ground and the curtain 4.
In order to move the traveling guide 16 on the rising base part B, a shaft 17 is attached to the side surface of the base part B and rotates toward the curtain 4. curtain 4
A shaft 18 of a device 7a that supports the curtain 4 together with the seal device 5a by sandwiching it from the front and back surfaces is provided on the upper surface of the base B inside the curtain. Seal device 5
A gable hem sheet 19 having the same length as the gable side is attached to the outside of the curtain a, and the sealing device 5a seals the curtain 4.
When rotated in the direction, the end hem sheet 19 closes the gap and seals it (see Fig. 6).

A gap between the bellows-type tent 3 and the curtain 4 is sealed by a sealing device 5b. The sealing device 5b is also rotatable, and the bellows-type tent 3 and curtain 4
A shaft 20 is provided to the bellows-type tent 3 at a slightly upper outer side of the connecting portion with the bellows-type tent 3. In this case as well, there is a device 7b that supports the curtain 4 together with the sealing device 5b, and this shaft 21 is attached inside the bellows-type tent 3 side. A gable upper sheet 22 is attached to the outside of the sealing device 5b,
When the sealing device 5b is rotated toward the curtain 4 side,
The gap between the bellows-type tent 3 and the curtain 4 is sealed (see FIG. 4). In addition, the reference numeral 23 in FIG. 6 is an upper running guide for moving the curtain 4, and the reference numeral 25 is a curtain frame. A drive source such as a motor or an air cylinder is used to rotate each sealing device.

In this embodiment, the above-mentioned measures are employed to make the building airtight by closing all the gaps, thereby preventing dust from entering the interior of the factory building when goods are being carried in and out.

<Effects of the invention> As detailed above, the dust intrusion prevention device of the article loading/unloading entrance of a factory building, etc. of the present invention can be easily achieved by using a bellows-type retractable tent house and a sealing device at its hem or joint. Moreover, it can be installed at low cost. In addition, the beneficial effect of being able to perform opening and closing operations easily and safely was also achieved.

[Brief explanation of drawings]

1 to 3 are explanatory diagrams showing the procedure for using the device of the present invention. FIG. 4 is a perspective view showing the bellows-type tent and curtain shown in FIGS. 1 to 3. FIG. 5 and 6 are explanatory diagrams showing the sealing device attached to the example shown in FIG. 4, FIG. 7 is a perspective view showing the bellows-type tent in a retracted state, and FIG. 8 is a perspective view when it is extended. It is a diagram. 1...Factory building, 2...Goods loading/unloading entrance, 3...
Bellows tent, 4...Curtain, 5a, 5b...
Sealing device, 6...opening/closing door.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Airtightly connecting the opening at one end of the bellows-type tent 3 inside the factory building, etc. to the article loading/unloading entrance 2 of the factory building 1, etc., and connecting the opening at the other end to the opening at the other end. Attach a curtain 4 of sufficient size to close the bellows-type tent 3 and curtain 4, and when the bellows-type tent 3 and the curtain 4 are extended and the curtain 4 is closed, the inside atmosphere of the factory building 1 etc. and the outside atmosphere of the factory building 1 etc. A dust intrusion prevention device for an article loading/unloading entrance of a factory building, etc., characterized in that the space is installed as airtight as possible. 2. The bellows-type tent 3 has a sealing device 5a on the ground side that seals the gap between the bellows-type tent 3 and the ground, and the curtain 4 has a sealing device 5a that seals the gap with the ground when the curtain 4 is closed, and the sealing device 5a that seals the gap between the bellows-type tent 3 and the ground. A device for preventing dust intrusion at an article loading/unloading entrance of a factory building, etc., as claimed in claim 1, which comprises a sealing device 5b on the side of the bellows-type tent 3 for sealing a gap with the bellows-type tent 3.