JP2898922B2 - Revolving door device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a revolving door device provided at an entrance of a building, and particularly to a wheelchair, a large object loading / unloading, or a large object without a rotating shaft structure at a passing portion. The present invention relates to a revolving door device that allows a large number of people to pass through.

[0002]

2. Description of the Related Art Conventionally, a revolving door device has a function of effectively shutting off the inside and outside of a building even when the door is opened and closed. Therefore, the revolving door device has been used as an entrance door in many places. Generally, this type of revolving door device has a structure in which a plurality of doors are radially attached to a rotating shaft vertically installed between a ceiling and a floor and rotated between opposed arc-shaped entrance / exit wall surfaces. Although very effective, it is not suitable for the function of passing by many people at once and the function of carrying in and out large objects.

Therefore, in the conventional revolving door device, as shown in FIG. 10, a structure in which four doors are folded in one character (a) or a structure in which all four doors are folded outward is shown in FIG. However, since the rotation axis is located at the center, not only a wide object such as a wheelchair is prevented from passing, but also a large amount of traffic is hindered, and securing an emergency evacuation exit has been a problem.

For this reason, as shown in FIG. 9 (a) or 9 (b), a structure in which the rotating shaft is movable in the direction of the side wall with the door folded, or the above-mentioned rotating shaft is detachably mounted so as to pass therethrough. A revolving door device has been invented (Japanese Patent Publication No. 3-66480) in which a possible width is increased or a large amount of traffic is allowed.

[0005]

However, in these revolving door devices, the operating procedure must be well-known in advance, and the structure and operation are difficult as a door device used by an unspecified user. However, the rotating shaft must be removed from the ceiling and floor each time to increase the width that can be passed, or the structure must be changed to allow a large amount of traffic. Was.

The present invention has been made in view of the above problems, and has a structure in which the rotating shaft structure is eliminated from the passage space, and each door which is radially pivoted at the time of increasing the passage width or at the time of emergency evacuation, Release the door so that the outer edge of each door is a pivot axis, and automatically fold it in the passing direction, without requiring complicated operations or prior knowledge, to carry in and out of wheelchairs and large items, or to mass-pass during emergency exits It is an object of the present invention to provide a revolving door device having a novel structure that can be approved as an evacuation guide port.

[0007]

A revolving door device according to the present invention comprises a ceiling structure rotatably supported above a floor of an entrance opening of a building and rotatably driven by a motor, and a vertical structure mounted on the ceiling structure. A pivot shaft for hanging four doors that are pivotally mounted on the pivot shaft, and four doors fixed to the pivot shaft and arranged so that the swinging ends face each other at the center axis position of the rotating door. And that the four doors are configured to rotate integrally with each pivot shaft.

In the above-mentioned revolving door device, each door can be opened and closed as required. The automatic fixed release mechanism of each door is an automatic swinging mechanism provided at the hanging point of the door and having an automatic fixed release structure. And an electromagnetic lock provided between the door and the ceiling member. In addition, the said revolving door apparatus can also be implemented as a three-door revolving door apparatus by the apparatus and mechanism similar to the above.

[0009] When the revolving door device passes through an entrance and passes from an outdoor side to an indoor side or from an indoor side to an outdoor side, it can move while rotating the door in the same manner as a conventional automatic revolving door. it can. Also, when a wheelchair passes through or when carrying a large load, the four doors are stopped so that the four doors are oriented at 45 ° with respect to the passing direction of the doorway.

In this state, the electromagnetic lock is released, and each door is folded toward the fixed wall by an automatic swing mechanism via an automatic fixed release mechanism. At this time, when trying to pass from the inside of the building to the outside, or when trying to pass from the outside to the inside, the structure is such that the doors are folded in an order that does not support the passage. Since the revolving door device has no shaft structure at the center of rotation, a relatively large passage width with respect to the opening width of the fixed wall can be secured, and the wheelchair can be sufficiently passed.

When an emergency signal is received, the automatic fixed release mechanism releases the fixed state of all the doors, so that each door can be swung and folded in the pushing direction. Therefore, when people come from inside, the four doors open outward. Even if a person does not push, the four doors stop in the 45 ° direction and then open outward.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a revolving door device according to the present invention will be described below with reference to FIGS. Code 1,
Reference numeral 1 denotes a pair of revolving door walls which are provided upright at entrances opened to outer walls 2 and 2 of the building.
1 centered on virtual center axis CL, which is the rotation axis of the revolving door
It has a / 4 arc cylindrical shape (arc angle of 90 °), and has a structure in which it is vertically opposed to each other by columns 4 erected at both ends and the outer wall 2 end.

The support column 4 (six in this embodiment) supports the frame 5 in the upper space to form a support structure for the revolving door device. Each of the above posts 4,4 ...
An annular ring-shaped rail 6 is fixedly provided below the frame 5 on the inner side of the frame. The annular rail 6 has a groove-shaped cross section facing inward, and the circular center of the annular rail 6 The configuration is shared with the virtual center axis CL.

Reference numeral 7 denotes a plurality of rollers 8, 8,..., Which are provided at the outer ends thereof, are rotatably fitted to the annular rail 6, and are horizontally mounted so as to be parallel to the horizontal floor surface 9. The ceiling frame 7 has a bottom surface on which a disk-shaped ceiling plate 10 is stretched and covered to form an interior surface, and a virtual center axis CL
, The ceiling structure having a rotating shaft as a rotation axis.

The center of the ceiling frame 7 is
And connected to the lower end of the rotating shaft 11
The rotating shaft 11 and the motor 12 fixed to the frame 5 are used as a drive unit together with the clutch 13, and a drive control unit 14
Are rotationally connected via a. The rotating shaft 11 is configured to rotationally drive the entire ceiling by a drive unit 14 via, for example, a chain or the like.

Reference numeral 15 designates four door structural members which are respectively mounted on the ceiling frame 7 via pivot shafts 16 fixed to the upper portion thereof and suspended and pivoted, and constitute a door 19 together with the door member 17. Do it. The four doors 19 are equally arranged in the circumferential direction via a door swinging mechanism 18 fixed to the ceiling frame 7, and are pivotally mounted so that the doors face in the radial direction. The outer edge of the door structural member 15 moves close to the inner wall of the revolving door wall 1 by the movement.

Each door 19 has a structure in which swinging ends are gathered toward the virtual center axis CL without crossing interference. Each of the pivot shafts 16 is rotatably connected to the door swinging mechanism 18 via, for example, a chain or the like, so that the pivot shaft 16 can be automatically fixed or rotated.

Each of the doors 19 has an upper portion on the swing end side and a ceiling frame 7 at a position where the swing end faces the virtual center axis CL.
When the electromagnetic lock 20 is released, the door 19 is automatically swung as shown by an arrow A or can be arbitrarily swung when the electromagnetic lock 20 is released.

Reference numeral 21 denotes an end rubber with a rubber sensor for preventing a door from being pinched to detect a door from being trapped due to deformation of rubber. Reference numeral 22 denotes a light beam sensor for preventing a door from being trapped by reflection of light rays. , These are tied to a specific position of the door. Numerals 23 and 24 are light sensors, and 25 is a rubber sensor attached to the lower part of the frame, both of which have a structure for preventing collision with the door during rotation, and the door normally rotates in the direction of arrow B. I do.

Reference numeral 26 denotes a glass wall plate fitted to the fixed wall 1, and 27 denotes a curtain plate for concealing a structure above the ceiling plate 10. Reference numeral 28 denotes an airtight brush member fixed to the swinging end of each of the doors 19, 19,.
L, the brush member 2 adjacent to the
8 intersect without obstructing the relative displacement, and a structure capable of preventing air flow is obtained.

In the revolving door apparatus having the above-described structure, the electromagnetic lock 20 is in the restrained state during normal use, and each door 1
Are fixed at radial angular positions in the quarter section direction.

Therefore, after passing through the doorway 3, the outdoor side OUT
To the indoor side IN or from the indoor side IN to the outdoor side OUT
When the orbit sensor 29 detects a person,
The door 19 and the ceiling plate 10 are moved while being rotated by the motor 12 of the drive unit, similarly to the conventional automatic revolving door.

This rotation is achieved by rotating the ceiling door 7 on the frame 5 by means of the main shaft 20 of the drive unit, and by rotating the annular rail 6 with a number of rollers 8, 8. , 1 smoothly operate.

Next, the opening operation of the above-described revolving door device will be described with reference to FIGS. The specification of opening the door is made when a wheelchair passes or when a large load is carried in or out. Referring to FIG. 5, the inner side IN to the outer side OU
When trying to pass through T, the user operates the door open switch on the inner side IN.

The ceiling frame 7 rotates to the door open position of the four doors 19 and stops. From this state, first, the two doors 19, 19 facing the outer side are rotated around the pivot shaft 16 by the door swinging mechanism 18 in the direction of the respective fixed walls 1 (arrow C), and are moved to a predetermined position. Stop at the position. Next, the two doors 19 on the inner side are connected to the respective pivot shafts 1.
The door 6 swings around the center 6 in the direction of the fixed walls 1 and 1 (arrow D) and stops at a predetermined position.

The opening width of the passage as shown in FIG. 5 can be obtained by the operation of the doors 19, 19,..., Thereby facilitating the passage of large luggage and wheelchairs.

When the user intends to pass from the outer side OUT to the inner side IN, the user operates a door open switch provided on the outer side to obtain a door open state as shown in FIG. By operating the door opening switch, the ceiling frame 7 is rotated so that the four doors 19 are in the door opening position and then stopped.

From this state, first, the two doors 19 facing the inner side are rotationally moved toward the respective fixed walls 1 by the door swinging mechanism 18 about the pivot shaft 16 (arrow E). To stop at a predetermined position. Next, the two doors 19 on the outer side are rotated (arrows F) in the direction of the respective fixed walls 1 and 1 by the door swinging mechanism 18 about the respective pivot shafts 16 to a predetermined position. Stop at

Next, an emergency operation will be described with reference to FIG. The drive control unit 14 determines that an emergency evacuation state is received when an emergency signal is received, and puts the electromagnetic lock 20 in a released state. . When the passerby pushes the door 19 closing the passage, an opening as shown in FIG. 7 can be obtained.

At this time, an interference roller 30 is rotatably mounted on the upper end of each door 19, and the interference roller 30 rolls when it comes into sliding contact with the frame of the adjacent door 19. When the doors 19 interfere with each other, the door 19 is prevented from being fixed by biting. When a person does not push the door 19, the ceiling frame 7 is rotated by the drive control unit, and the door 19 stops at the non-open state, and then the door swinging mechanism 18 controls the inner side IN.
The doors 19, 19 of the outer side OUT and the doors 19, 19 of the outer side OUT can be rotated in the directions of the arrows E or F, respectively, to secure the evacuation passage shown in FIG.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The revolving door device described in the embodiment of the present invention has a structure in which four doors 19 are arranged radially around a virtual rotation center axis CL in a normal state. Since the configuration eliminates the rotation center axis and swings each door 19 so that it can swing freely by the pivot shaft 16 with respect to the ceiling frame 7, the number of the doors 19 is three as shown in FIG. There may be. In this case, the two rotating door walls 1 and 1 form a 1/3 arc tube (arc angle 120 °) centered on the virtual center axis CL.

[0032]

As described above, the revolving door device according to the present invention has the pivot axis of the door so that it can rotate integrally with the ceiling frame rotatably supported above the floor of the entrance of the four buildings. The door is suspended via a swinging mechanism, and the swinging ends of the door are disposed so as to face each other with a virtual center axis CL of the revolving door, and rotate integrally with the ceiling frame. The door swings or stops.

For this reason, when each door is swung, there is no obstructive structure in the passage, and a wide passage width can be secured even with a relatively small revolving door device.
A large luggage loading / unloading path can be provided, and a wheelchair, which has been impossible at all, can be passed.

Further, even in an emergency such as a fire, the revolving door device of the present invention has a feature that each door can be opened to the outside manually or automatically. The effect is extremely large.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a main part showing a relationship between a door and a rotating door wall showing an embodiment of a rotating door device according to the present invention.

FIG. 2 is a partially cutaway longitudinal sectional view showing a state where the door is rotated 45 degrees.

FIG. 3 is a front view of the revolving door device.

FIG. 4 is a perspective view showing an arrangement of a safety device of the revolving door device.

FIG. 5 is a plan view of the door opening operation according to the present invention in a state where the door is stopped from swinging from the inside.

FIG. 6 is a plan view showing the door opening operation according to the present invention in a state where the door is stopped from swinging from the outside.

FIG. 7 is a plan view of an emergency opening state showing an opening operation of the door according to the present invention.

FIG. 8 is a plan sectional view showing another embodiment of the revolving door device according to the present invention.

FIGS. 9A and 9B are explanatory diagrams each showing a state in which a door is opened in a conventional revolving door device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Revolving door 2 Outer wall 3 Doorway 4 Prop 5 Frame 6 Ring rail 7 Ceiling frame 11 Rotating shaft 12 Motor 14 Drive control unit 15 Door structural material 16 Pivot shaft 17 Door member 18 Door swinging mechanism 19 Door 20 Electromagnetic lock 30 Interference roller CL Virtual center axis

Claims (2)

(57) [Claims] Claims 1. Three or four radially arranged doors are provided between arcuate rotating door walls which stand upright at an opening of a building,
In a revolving door device rotatably pivoted around a vertically extending axis of the arcuate revolving door wall as a rotation center, the shaft structure is removed from a passage portion by a virtual rotating shaft structure,
The three or four doors are swingably pivoted via a vertically extending pivot shaft structure disposed at each of the outer end portions, and the electromagnetic lock is usually formed in each of the pivot shaft structures. A revolving door device, wherein the revolving door device is in a constrained state in which the door is directed in the radial direction with respect to the virtual rotating shaft structure by the constraining means, and is capable of being opened and closed by releasing the constraining means as necessary. 2. The pivot shaft mechanism according to claim 1, wherein when the doors are set in an open state, a door swing mechanism for automatically swinging and driving each door to a preset open mode is provided. Revolving door device.