JPS6233234A - Automatic door with air curtain device - Google Patents

Abstract

PURPOSE:To enable efficient utilization of an air curtain, by a method wherein an air curtain device capable of regulating an amount of the supplied according to the opening of a door is mounted to an opening and closing end part. CONSTITUTION:An air curtain supply openings 2 are mounted to the opening and closing end part (a forward end) of an automatic opening and closing door 1, and the supply openings are constructed to move together with the door. The feed of the air to the supply openings 2 is effected from a blower through a flexible duct 3 expandably attached to the interior of the box type rail on the upper part of the door. The blower and the automatic opening and closing door are operated in electrical linkage with each other, and when the door is fully closed, the feed of air is stopped, and when the door is slightly opened, the feed of air is started. The air supply opening is so formed that a slight amount of the air is blown out toward the interior of a room. Thus, when, during opening and closing of the door, the door is opened, the air curtain is actuated, and during actuation of the air curtain, the interior of the room is thermally isolated from the exterior of the room. Regulation of an amount of the air fed according to the opening of the door enables efficient utilization of the air curtain.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic door with an air curtain device.

[Conventional technology and its problems]

One way to prevent indoor air from leaking outside (or from outdoor air blowing indoors) at the entrances and exits of stadiums, etc. is to install automatic doors at the entrances and exits. The amount of foot traffic is extremely high during these times, and even if automatic doors are installed, it is difficult to expect a blocking effect as they are not fully open.

In order to solve such problems, it is possible to use an air curtain and an automatic door in combination, but this is not preferable in terms of equipment costs and operating costs, especially operating costs.

[Purpose of the invention]

The present invention aims to solve the problems in the prior art by attaching an air curtain device that operates only when the door is opened to the opening/closing end of the door (the tip of the door). do.

[Structure of the invention]

The present invention is an automatic door equipped with an air curtain device at the opening/closing end, and particularly an automatic door equipped with an air curtain device that can adjust the amount of air blown out according to the degree of opening of the door. .

Hereinafter, the present invention will be explained in detail based on the drawings.

Fig. 1 is a perspective view showing an example of an automatic opening/closing door in which an air curtain device is attached to the opening/closing end of the present invention. The supply flexible duct is shown.

In the present invention, the opening/closing end (tip part) of the automatic opening/closing door 1
An air curtain outlet 2 is attached to the door, and the outlet is configured to move together with the door. Air is blown to the outlet 2 from a blower (not shown) through a flexible duct 3 that is extendably provided in a box-shaped rail at the top of the door.

The blower and automatic door are electrically linked, and are configured to stop blowing air when the door is fully closed, and start blowing air when the door is fully opened. It is configured so that the air is blown into the room. Therefore, during opening and closing of the door, when the door is opened, the air curtain is activated, and during this time, the indoor and outdoor areas can be thermally shielded at the entrance/exit.

In addition, when changing the stop position of the door in the opening direction depending on the amount of people passing through the entrance, for example, if there is a large amount of traffic, the door will be fully opened, and if the amount of traffic is relatively small, the VC will leave the door partially open. When the air curtain is left open, the air curtain can be used efficiently by adjusting the amount of air blown according to its opening degree.

〔Effect of the invention〕

By attaching an air curtain device to the opening/closing end of the automatic door, when the door is open, the air curtain can thermally shield the inside and outside of the room. When the air curtain is left fully open or partially opened, the air curtain can be used efficiently by adjusting the air flow rate.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of an automatic door for explaining the present invention in detail.

Claims (1)

[Claims] 1. An automatic door with an air curtain device attached to the opening/closing end. 2. The automatic door according to claim 1, wherein an air curtain device is attached to the opening/closing end portion of the door to adjust the amount of air blown out according to the degree of opening of the door.