JP2006002412A - Rotary door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary door preventing reception of strong pressure by sliding and releasing a mullion 4 by a braking distance or more even if a human body is nipped between a rotary door blade door end 5 and the mullion 4. <P>SOLUTION: When the human body is nipped, the occurrence of the nipping situation is prevented by sliding the mullion of an outer peripheral part on the rotary door blade proceeding side in the moving direction of the rotary door by the braking distance or more of a rotary door blade. Dislocation from a normal position of the mullion is used as a detecting sensor of a nipping accident by moving in nipping without moving by mere human touch and wind pressure by performing the setting of the mullion in response to a specific reference. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

This field relates to the safety structure of a revolving door device.

A cushioning material with a contact sensor is attached in the vicinity of the vertical 4 in the doorway, and the pressure of contact with a human body or the like is detected to thereby stop the rotary door blade 3.

A non-contact sensor is installed in a dangerous area near the vertical 4 in the entrance and exit, so that the human body is detected, and the revolving door body 3 is stopped when there is a danger that a person is caught.
These methods may cause the following problems.

Since the entrance is always through, it is difficult to judge whether the sensor is normal or abnormal, and the sensor malfunctions.

Even after the sensor detects an abnormality, the rotating door body 3 moves by inertia until complete stop even if the brake is applied immediately. This is called a braking distance, but the clearance for the braking distance is not sufficiently secured.
Japanese Patent Application No. 11-206256 Ministry of Economy, Trade and Industry / Ministry of Land, Infrastructure, Transport and Tourism “3rd Study Meeting on Accident Prevention Measures for Automatic Revolving Doors”

Insufficient clearance for the braking distance of the revolving door blade 3.

There is no sensor to detect only when there is a high probability of an accident being pinched without operating when normal traffic is taking place.

When a human body or the like is sandwiched, a situation in which it is sandwiched by sliding the stand 4 in the moving direction of the rotary door blade door tip 5 beyond the braking distance of the rotary door blade 3 is prevented.

By fixing and holding the vertical 4 in a fixed position using air pressure, hydraulic pressure, electromagnetic force, etc. according to a certain standard, it does not move due to light human contact or wind pressure, but moves only when pinched. It becomes possible. Therefore, a deviation from the normal position of the vertical 4 is sandwiched and used as an accident detection sensor to increase the reliability of the detector.

Even if a human body or the like is sandwiched between the revolving door blade door tip 5 and the stand 4, the stand 4 is slid and is not subjected to strong pressure by allowing it to escape beyond the braking distance.

By setting the vertical 4 so that it begins to slide with a force slightly less than the pressure that causes injury to the human body, if the positional deviation of the vertical 4 is sandwiched and used to detect an accident, a sensor with few malfunctions can be obtained.

In order to prevent an accident from being caught, it is necessary to make the structure move smoothly regardless of where the vertical 4 is pushed in the height direction.

FIG. 2 shows a plan view when the stand 4 is in the normal position.

FIG. 3 is a plan view of a state after a human body or the like is sandwiched between the vertical 4 and the rotary door blade tip 5 and the outer peripheral slide portion 6 is moved, whereby the rotary door blade 3 is braked and stopped.

FIG. 4 shows a case where the outer peripheral portion is not slid and the necessary amount of movement of the vertical 4 is reduced by the bellows method or the like.

It can be applied to prevent accidents.

It is a top view of a standard revolving door. (Example 1) which is a top view of the revolving door which comprised the slide part which can make a slidable slide, and the outer peripheral part moved integrally with the stand and the fixed part. (Example 2) which is a top view which shows the state after the slide part which a human body etc. pinches and moves integrally with a vertical slide slides and a rotary door blade | wing is braked and stopped simultaneously with the start of a slide. It is a top view at the time of making it shrink | contract by the bellows system etc. only by the movement required amount of the vertical 4 when not sliding an outer peripheral part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance / exit 2 Outer part 3 Rotating door blade 4 Vertical 5 Rotating door blade door tip 6 Outer peripheral part Slide part 7 Outer peripheral part fixed part 8 Packing 9 Person 10 Braking distance margin 11 Peripheral part shrunk by bellows system etc. Rotation direction of outer periphery a before shrinking before receiving 12 pressure

Claims (4)

In a rotary door device comprising an outer peripheral portion 2 having two doorways 1 and a rotary door blade 3 rotating along the inner periphery thereof, the stand 4 at the end of the outer peripheral portion can be slid in the rotational direction of the rotary door blade 3. By doing so, the damage when a person or an object is sandwiched between the revolving door blade tip 5 and the vertical 4 is prevented or reduced. When a person or object is sandwiched between the revolving door blade door tip 5 and the stand 4, the stand 4 starts moving in the moving direction of the revolving door blade door tip 5. At the same time as detecting the displacement due to the movement of the vertical wall 4, the rotation of the rotary door blade 3 is braked. By allowing the vertical 4 to move a distance equal to or greater than the braking distance of the rotary door blade tip 5, it is possible to prevent the pinch and damage. In order to secure a smooth slide of the vertical 4, the outer peripheral portion 2 integrated with the vertical 4 is divided into a slide portion 6 and a fixed portion 7 that slide together with the vertical 4 and slide on the circumferential path. In this case, the track radius from the rotation center of the rotary door of the slide portion 6 is made smaller than the radius of the installation position of the fixed portion 7 in order to prevent the entanglement at normal times. When the outer peripheral portion is not slid, the necessary amount of movement of the vertical 4 is reduced by the bellows method or the like.

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