JPH0320687Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an automatic opening/closing door with an air curtain installed at the entrance/exit of a building.

[Prior art] Conventionally, when a person approaches an entrance to a store, building, or room, a drive mechanism installed in a storage box installed above the entrance is activated, and a storage box located below the entrance is activated. It is equipped with an automatic opening/closing door that opens and closes the door body.

In addition, for entrances and exits equipped with such automatic opening/closing doors, there is a door located above the entrance near the entrance in order to reduce the heating and cooling efficiency of the room when the door is opened, or to prevent dust and germs from entering the room. An air curtain device is provided that blows out air in a curtain shape toward the floor from an air blowing mechanism disposed in a storage box separate from the above-mentioned storage box, thereby allowing indoor air to escape and blocking outside air from entering. ing.

[Problems to be solved by the invention] However, when an automatic opening/closing door and an air curtain device are installed at the entrance/exit, a storage box housing the drive mechanism for the automatic opening/closing door and an air blowing mechanism for the air curtain must be housed. The storage box must be placed almost parallel to the upper part of the entrance, making the installation work troublesome and not economical. Moreover,
Generally, both storage boxes are constructed so that they can be opened and closed to facilitate inspection and repair of the drive mechanism and air blowing mechanism housed inside, and when one storage box is opened, it may interfere with the other storage box. At least place both storage boxes so that
They must be placed at least 50 cm apart, which not only reduces the effective area within the room, but also leaves a large gap between the door body and the air ejected from the air ejection mechanism, preventing the air curtain from fully demonstrating its shielding effect. The problem was that I couldn't do it.

This project was developed to solve these problems, and is an air curtain that is easy and economical to install, does not reduce the effective area of the room, and has a good shielding effect. The purpose is to provide automatic opening/closing doors.

[Means for solving the problem] In order to solve this problem, the automatic opening/closing door with an air curtain of the present invention has an air blowing mechanism installed inside the storage box in which the door drive mechanism is installed. It is characterized by

[Example] Next, an example of the present invention will be described.

Figure 1 shows an example of the present invention.
An elongated storage box 4 extending in the front-rear direction perpendicular to the plane of the drawing is suspended via a support bracket 2 and a suspension bracket 3. This storage box 4 is divided into two storage parts 6 and 7 by a partition plate 5, and a drive motor 8 is arranged in one of the storage parts 6, and this drive motor 8 is arranged in the front and rear. The V-belt 1 is connected to one of the pair of pulleys 9, 9.
0 is wrapped. In addition, the storage box 4
From the groove 6a formed in the bottom wall 4a of the storage section 6
A V-belt 1 is attached to a rack 12 with an L-shaped end surface that is fixed to the upper end 11a of the door body 11 that protrudes inward.
0 is fixed, and the door body 10 is suspended by a suspension wheel 14 attached to this rack 12 riding on a guide rail 13 extending along the storage box 4, and a drive motor 8, a pulley 9, 9.V
The belt 10 and the rack 12 constitute a drive mechanism A for the automatic opening/closing door.

Further, a drive motor 15 and a blower fan 16 rotated by the drive motor 15 are disposed in the other storage section 7, and the drive motor 15 and the blower fan 16 constitute an air blowing mechanism B. . Further, the storage box 4 has an opening/closing member 20 which forms part of the side wall 4b and the bottom wall 4a on the side of the air blowing mechanism B and has an L-shaped end face on which the partition plate 5 is provided. It is attached to the side edge of the wall 4c by a hinge 20a, and the entire storage section 7 is configured to pivot around the hinge 20a to open the storage section 6. The side wall 4b is provided with an air intake port 18, and the bottom wall 4a on the opening/closing member 20 side is provided with a slit-shaped air outlet 19 that approaches and extends parallel to the door body 11. The opening/closing member 20 is fixed at both front and rear ends by connecting the mounting bracket 25 of the storage box 4 and the bottom wall 4a with screws 21. The door body 11 is driven to open and close in a vertical state by fitting a guide 22 protruding from its lower surface 11b into a groove 24 formed on a floor surface 23. In this embodiment, the second blower fan 16 is used as the second blower fan 16.
As shown in the figure, a cylindrical shape is used in which the overall shape is cylindrical, and blades 17 extending in the longitudinal direction are formed on the outer surface of the cylinder.

In this embodiment configured as described above, the drive mechanism A and the air blowing mechanism B can be installed at the top of the doorway in one step by simply arranging the air blowing mechanism B on the indoor side and attaching the storage box 4 to the top of the doorway. The installation work is extremely simple, and there is no reduction in the effective indoor area. When a person approaches the entrance/exit, various sensors (not shown) installed at the entrance/exit sense this, and the signals are used to activate the drive mechanism A and the air blowing mechanism B.
is activated, the blowing fan 16 of the air blowing mechanism B rotates to take in room air from the air intake port 18 into the storage section 7, and then blows it out from the air blowing port 19 in a curtain shape toward the floor surface 23. At the same time, door body 11
is opened by drive mechanism A. At this time, according to this embodiment, since the storage box 4 is divided into two storage sections 6 and 7 by the partition plate 5, the ejected air in the storage section 7 of the air blowing mechanism B is transferred to the storage section on the drive mechanism A side. The dust will not flow into the section 6 and reduce efficiency, or cause dust to adhere to the drive mechanism A and adversely affect the opening/closing operation. Further, since the drive mechanism A and the air blowing mechanism B are housed in the same storage box 4, the sensor and its control mechanism can be easily arranged and connected, and can be installed in a narrow space. Furthermore, since the drive mechanism A and the air blowing mechanism B are housed in close proximity in the same storage box 4, the air jetted from the air blowing mechanism B is blown out along the door body 11, thereby exerting a sufficient shielding effect. . Then, when a predetermined period of time has elapsed after a person passes through the doorway, the drive mechanism A is activated again by a signal from the control mechanism to close the door body 11, and then the air blowing mechanism B is stopped.

Further, in this embodiment, the storage box 4 is constructed so that the entire storage section 7 can be opened and closed by pivoting around the hinge 20a, and by removing the screw 21 from the mounting bracket 25, the opening/closing member 20 can be opened and closed around the hinge 20a. By turning and opening (the state shown by the chain line in FIG. 1), the storage section 6 is opened without being interfered with by the storage section 7, and the drive mechanism A can be inspected or repaired. Also, for example, the air outlet 19
is detachable, and the air blowing mechanism B can be inspected and repaired through the opening that appears when removed, making maintenance easy and economical.

[Effects of the invention] The automatic opening/closing door with an air curtain of the present invention has an air blowing mechanism attached to the storage box where the door drive mechanism is installed, making the installation work simple and economical. In addition, there is no reduction in the effective area of the room, and the air curtain has a large shielding effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a side view of the blower fan. A... Drive mechanism, B... Air blowing mechanism, 4...
Storage box, 11...door body.

Claims (1)

[Claims for Utility Model Registration] (1) An automatic opening/closing door with an air curtain characterized in that an air blowing mechanism B is provided in a storage box 4 in which a drive mechanism A for a door body 11 is disposed. (2) The automatic opening/closing door with an air curtain according to claim 1, wherein the storage box 4 is divided into a storage section 6 for the drive mechanism A and a storage section 7 for the air blowing mechanism B. (3) The storage box 4 is divided into a storage section 6 for the drive mechanism A and a storage section 7 for the air ejection mechanism B, and when the storage section 7 for the air ejection mechanism B rotates, the storage section 6 for the drive mechanism A is opened. An automatic opening/closing door with an air curtain according to claim 1 of the utility model registration claim, which is formed to be openable.