JPH0749878B2 - Partition device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partitioning device installed at a doorway of a factory for the purpose of preventing dust and insects.

[0002]

2. Description of the Related Art Conventionally, when partitioning the inside and outside of a doorway of a factory so that objects such as goods and vehicles can pass through, conventionally, for example, a plurality of synthetic resin sheets are drooped with their ears overlapped. Curtains and air curtains were installed.

[0003]

With a curtain of synthetic resin sheet, it is necessary to peel off the overlapping portion of the curtain each time when passing through the entrance and exit, and roll up the curtain, which makes the passage at the entrance and exit inconvenient and complicated. In the air curtain, the spread of the air flow gradually increases from the upper side to the lower side, and the air flow rate decreases near the floor surface, so the partition effect becomes insufficient and foreign matter etc. from the outside to the inside of the entrance and exit. There is a problem that it is easy to be blown in. An object of the present invention is to provide a partitioning device which solves the above-mentioned problems and is easy to pass through at the entrance and exit and has excellent partitioning effect.

[0004]

The partitioning device of the present invention comprises:
Below the air outlet of the air duct in which the air blower that causes the air to flow downward is placed, there are a plurality of flexible inner curtains that hang down with their lower edges in contact with the floor surface. A row of inner strips formed by arranging them in a row with a gap between each, and a plurality of flexible outer strips hanging down with their lower edges separated from the floor surface, respectively. It has a configuration in which an outer band curtain row formed by arranging in a horizontal row is arranged in parallel with an air flow path through which air flows interposed.

[0005]

[Function] A plurality of flexible inner strips are respectively hung down by the air flow blown from the air outlet of the blower duct in which the blower fan is inserted, with their lower edges contacting the floor surface. A row of inner strips arranged in a row across the gap, and a plurality of flexible outer strips hanging down with their lower edges separated from the floor surface, respectively. An air curtain flows downward in the air flow passage between the outer curtain row formed by arranging in a horizontal row and flows out from the lower end of the air flow passage to the outside, and an air curtain is formed between the two curtain rows. It is formed.

[0006]

Since the present invention is configured as described above, the decrease in the flow velocity of the air flow passing through the air flow passage is suppressed, and the spread thickness of the air flow extends from the upper end to the lower end in the air flow passage. It is possible to form an air curtain that is constant and stably flows from the upper end to the lower end in the air flow path at a substantially constant flow velocity in the air flow path. Therefore, the inside and outside of the entrance / exit can be double-divided by the inner and outer strip curtain rows, and the air curtain flowing in the air passage can prevent foreign matters from entering the air passage to separate the inner and outer strip curtain rows. Since the effect can be assisted, it is possible to synergistically enhance the overall partitioning effect and strengthen the partitioning state, and it is possible to accurately prevent foreign matter from entering the inside of the entrance / exit. Also, since there is no overlap between the inner and outer curtains, it is possible to reduce the resistance when passing through the inner and outer curtains, and it is possible for goods and vehicles to easily pass through the doorway. it can.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. In the partitioning device installed at the entrance / exit E of the factory, a horizontally long ventilation duct 1 is installed at the upper end of the entrance / exit E, and the outer wall plate 1a of the ventilation duct 1 is vertically arranged to have slit-like air intakes. 2 is opened, and a horizontally long air outlet 3 is provided at the rear of the bottom plate 1b of the air duct 1.
Is opened over the entire length of the blower duct 1.

A plurality of motors 4 are loaded in the air duct 1, and the air blown into the air duct 1 is connected to the output shaft of the motor 4 and arranged in the longitudinal direction of the air duct 1. A plurality of blower fans 5 that are fed toward the lower side of the mouth 3 are installed concentrically.

Lower end edges 6 are provided below the air duct 1.
In the state where a is in contact with the floor surface F, a plurality of strip-shaped inner strip curtains 6 are hung from the rear side edge of the air outlet 3 and arranged in a horizontal row with a first gap 7 therebetween. It is installed in a shape.

At the front of each inner strip curtain 6, lower end edges 9a are hung from the front edge of the air outlet 3 in a state of being separated from the floor surface F, and are arranged in a horizontal row with a second gap 10 therebetween. A plurality of strip-shaped outer curtains 9 are installed in an upright state with an air flow path 11 through which air flows.
Third gaps 13 are formed between the bottom edge 9a of each outer strip 9 and the floor surface F, respectively.

Below the air outlet 3, inner strip curtains 6 are formed by arranging the inner strip curtains 6 in a horizontal row, and each outer strip curtain 9 is formed.
Are arranged side by side in a row and are arranged side by side with the air flow passage 11 sandwiched therebetween.

The second gaps 10 between the outer strips 9 are larger than the size of the first gaps 7, and the first gaps 7 are formed in front of the central portion of the inner strips 6 and diagonally forward of the first gaps 7. They are arranged in a cross.

Each inner belt curtain 6 and each outer belt curtain 9 are formed by cutting a flexible soft synthetic resin sheet.

The air flow blown downward from the air outlet 3 flows downward in the air flow path 11, and from the lower end in the air flow path 11 to the lower edge 9a of each outer curtain 9 and the floor surface F. An air curtain is formed by the air flow in the air flow path 11 after passing through the space and flowing out.

It should be noted that each of the first gaps 7 is provided on the rear side of each of the first gaps 7.
Alternatively, strip-shaped strips that respectively close over the entire length may be installed vertically.

Next, the operation and effect of the embodiment having the above configuration will be described. In this example, a plurality of lower end edges 6a are hung so as to be in contact with the floor surface F below the air outlet 3 of the blower duct 1 in which a blower fan 5 for flowing air downward is inserted. An inner band curtain row 8 formed by arranging flexible inner band curtains 6 in a horizontal row with a first gap 7 respectively, and a plurality of hanging lower end edges 9a in a state of being separated from the floor surface F, respectively. A state in which each flexible outer strip curtain 9 is formed by being arranged in a row in a row with a second gap 10 therebetween, and an air flow passage 11 through which air flows is sandwiched therebetween. It is parallel in.

Therefore, the flow velocity loss of the air flow passing through the air flow passage 11 is suppressed, and the spread thickness of the air flow becomes constant from the upper end to the lower end in the air flow passage 11, and from the upper end in the air flow passage 11. An air curtain that stably flows at a substantially constant flow rate over the lower end can be formed in the air flow path 11.

Accordingly, the inside and outside of the entrance / exit E are set to the inner and outer band rows 8, 1.
It can be double-partitioned by 2, and the air curtain flowing in the air flow path 11 prevents foreign matters and the like from entering the inside of the first and second gaps 10 and 7 to prevent the strips 8 and 8 Since the partition effect by 12 can be assisted, the overall partition effect can be synergistically enhanced to strengthen the partition state, and it is possible to appropriately prevent foreign matter or the like from entering the entrance E.

Further, since there is no overlapping portion between each inner belt curtain 6 and each outer belt curtain 9, it is possible to reduce the resistance when the inner and outer belt curtains 6 and 9 are repelled to pass through, and to carry goods or vehicles. Etc. can easily pass through the entrance / exit E.

[Brief description of drawings]

FIG. 1 is a front view of a partitioning device showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line X1-X1 of FIG.

FIG. 3 is a sectional view taken along line X2-X2 of FIG.

FIG. 4 is a cutaway perspective view of a main part.

[Explanation of symbols]

 1 Blower Duct 3 Air Outlet 5 Blower Fan 6 Inner Belt 7 Inner Gap 8 Inner Band Curtain 9 Outer Band Curtain 10 Second Gap 11 Air Channel 12 Outer Band Curtain

Claims (1)

[Claims] 1. A plurality of flexible members, each of which has a lower end edge in contact with a floor surface, below a blower duct of a blower duct in which a blower fan for flowing air downward is inserted. The inner strip curtain rows are formed by arranging the inner strip curtains in a horizontal row with a gap between each of them, and a plurality of flexible outer strip curtains hanging down with their lower edges separated from the floor surface. A partitioning device comprising: an outer band curtain row, which is formed by arranging in a horizontal row with a gap therebetween, and is arranged in parallel with an air flow path through which air flows sandwiched therebetween.