JP2005299355A - Safety device for revolving door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide protection for the safety of a person which prevents fatal damage to a human body by making a movable wall surface lessen the impact on the human body when the person is caught within a revolving door, and by forcefully stopping a rotating body by starting up a shutdown device while a stopper is activated by a sensor's reliable detection of collision. <P>SOLUTION: A movable inner wall 4 is mounted on the rotating body 2, and a movable wall surface 7 is mounted on an arc-shaped side wall 6 of the rotating body 2. Then the impact is lessened when the human body H is caught at a doorway 1. The movable inner wall 4 and the movable wall surface 7 are pushed by the pressure. When the movable inner wall 4 and the movable wall surface 7 come off each of the predetermined positions, the sensors 5, 9 reliably detect its motion, and the stopper in synchronization with a drive of the automatic revolving door is activated. Then at the same time, the shutdown device 10 mounted on the circumference of the rotating body 2 is started up, thus the rotating body 2 of the revolving door is forcefully stopped in a fixed position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

JP-A-6-288157 (page 2-3)

Improved safety of revolving doors

Revolving doors installed at the entrances and exits of buildings are rotated by human power, electric power, or hydraulic drive devices to allow people to pass through, but there is an accident in which human bodies are accidentally pinched when people pass through the entrances and exits. Sometimes.

Sensors are installed in so-called automatic revolving doors, which are driven by electric power or hydraulic drive, so that when a human body is about to be caught at the doorway, a stopper is activated after detecting this. However, the sensor detects the movement of a person by a non-contact method such as infrared rays or ultrasonic waves from a place away from the entrance / exit of the revolving door, such as the ceiling, and the certainty of grasping whether the human body is caught. Therefore, depending on how people enter the entrance / exit, human movement may not be detected and the human body may be pinched.

Even if the stopper of the rotating body is activated by detecting the movement of a person, it is inevitable that the rotation will continue for a certain distance due to the power inertia of the rotating revolving door, and the sensor can properly detect the movement of the person. Without it, the possibility of human beings being caught between the revolving doors and damaging the human body cannot be excluded.

The present invention has been devised to solve these problems. When a movable inner wall is installed on the rotating body and a movable wall surface is installed on the upper wall of the arc, a human body collides with the rotating body at the entrance / exit. The movable inner wall and movable wall act as cushions to mitigate impact, and as the movable inner wall and movable wall move from a fixed position, the sensor detects this movement and acts as a stopper built in the drive unit. In response to this, a command is issued to brake the rotation of the rotating body, and the stop device is operated to forcibly stop the rotating body that continues to rotate due to power inertia at the specified point, which is fatal to the human body. The purpose is to improve safety related to the use of revolving doors by preventing excessive damage.

Means for solving the problem

In order to solve the above-mentioned problems, the revolving door according to the present invention is provided with a movable inner wall 4 supported by a spring hinge 3 at the front portion in the rotation direction R of the door wall surface which is a part of the rotating body 2 as shown in FIG. In the normal use, this functions like a rotating body 2 and a single door, but as the rotating body 2 rotates, the human body H comes into contact with the movable body wall at the entrance 1 as shown in FIG. 3, the rotating body 2 rotates in the R direction to the position shown in FIG. 3 and the human body H is further sandwiched, but the movable inner wall 4 is in the Mi direction with the spring hinge 3 as a fulcrum. It is characterized by relieving the pressure on the sandwiched human body H.

Further, the revolving door according to the present invention is provided with a movable wall surface 7 supported by a spring hinge 8 at the entrance / exit portion of the arc-shaped side wall 6 in contact with the rotating body 2 as shown in the cross-sectional view of FIG. At the time of use, the movable wall surface 7 is integrated with the arc-shaped side wall 6 to form an entrance / exit part, but as the rotary body 2 rotates in the R direction, the human body H at the entrance / exit 1 as shown in the cross-sectional view of FIG. , The rotating body 2 rotates in the R direction to the position shown in the cross-sectional view of FIG. 3 as it is, and the human body is further sandwiched, but the spring hinge 8 As a fulcrum, the movable wall surface 7 is swung in the Mw direction, and the pressure on the sandwiched human body H is reduced.

In order to ensure safety, the revolving door according to the present invention has a rotating body circumference when the movable inner wall 4 and the movable wall surface 7 swing in the Mi and Mw directions, respectively, as shown in FIG. The sensor 5 and the sensor 9 installed on the upper side reliably sense the movement, and the stopper 13 connected to the driving device 12 that rotates the rotating body operates to brake the rotation of the rotating body 2 and to rotate the rotating body. Even if the safety device 10 installed inside the circumference is activated and the rotating body 2 further rotates due to power inertia, the rotating body 2 is forcibly stopped at the position shown in FIG. It is characterized by preventing damage. 4 is an overall view of the revolving door including the rotating body 2, the sensor 5, the arc upper side wall 6, the stopping device 10, the driving device 12, the stopper 13, the hydraulic machine 14, the stopping device starting device 15, and the sensor wiring 16. The configuration and the cross-sectional view of FIG. 5 show a state where the safety device 10 is activated and the rotating body 2 is stopped.

The invention's effect

Conventional automatic revolving doors have a structure in which infrared or ultrasonic sensors installed on the ceiling or the like detect the approach of people near the entrance and prevent people from getting caught, but people approach Depending on the state, the sensor may not detect it, or even if the sensor detects it and the stopper is activated, a person may be caught by the revolving door at the entrance / exit due to factors such as the rotation of a certain distance due to the power inertia of the rotating body. There is a risk of accidents that could damage the human body. In the revolving door according to the present invention, the movable inner wall and the movable wall surface, which are respectively supported by the movable spring hinge on the wall surface of the rotating body and the arc upper side wall thereof, serve as cushions to reduce the pressure at the time of collision. When this movement occurs, the sensors installed on the rotator and the arc upper side wall reliably detect the abnormality and brake the rotation of the rotator against the stopper built in the drive unit of the rotator. Revolving door by issuing a command to stop and start the stop device to forcibly stop the rotating body that continues to rotate due to power inertia at the specified point to prevent fatal damage to the human body Gives the effect of improving safety related to use. This device exhibits the most remarkable effect in so-called automatic revolving doors that are driven to rotate by electric power or hydraulic pressure, but the same safety can be secured even when applied to a manual revolving door that is rotated by human power.

It is a cross-sectional view which shows the structure of the revolving door concerning this invention. It is a cross-sectional view which shows the state where the person was pinched | interposed when the rotary body is rotating. It is a cross-sectional view which shows the state which stopped after the rotation body continued rotating while a person was pinched | interposed into a movable inner wall and a movable wall surface. It is an elevation view which shows the structure of the whole revolving door. It is a cross-sectional view which shows the state which the stop apparatus act | operates and has stopped the rotary body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance / exit 2 Rotating body 3 Spring hinge 4 Movable inner wall 5 Sensor 6 Arc upper side wall 7 Movable wall surface 8 Spring hinge 9 Sensor 10 Stop device 11 Ceiling 12 Drive device 13 Stopper 14 Hydraulic machine 15 Stop device starter 16 Sensor wiring R Rotating body Rotation direction H Human body Mi Movement direction of movable inner wall Mw Movement direction of movable wall surface

Claims (3)

The movable inner wall supported by the spring hinge installed on the front door of the rotating body that rotates around the center of the doorway functions as a door that is integrated with the rotating body during normal use. When a human body is sandwiched between the movable inner wall installed on the rotating body and the movable wall installed on the upper wall of the arc when passing through the doorway, the movable inner wall is supported by the spring hinge as a fulcrum. A revolving door characterized by softening the impact on the person caught by swinging backward in the direction of rotation. A movable wall surface supported by a spring hinge installed at the entrance / exit part of the arc-shaped side wall that contacts the rotating body in the outer peripheral direction forms an entrance / exit part integrally with the arc-shaped side wall during normal use. When a human body is sandwiched between the movable wall installed on the arcuate side wall and the movable inner wall installed on the rotating body when passing through the doorway, the movable wall uses the spring hinge as a fulcrum due to the pressure. A revolving door characterized by softening the impact on the person caught by swinging forward in the direction of rotation. When the sensor is installed on the inside of the revolving door circle and a human body is sandwiched between the movable inner wall and the movable wall surface at the entrance as the rotating body rotates, it is movable with the spring hinge as a fulcrum by the pressure As the inner wall or movable wall moves from a predetermined position, the sensor reliably detects the movement, the stopper is activated, and the stop device is activated to forcibly stop the rotating body at the specified point. Features a revolving door.

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