JPH0651460U - Mounting structure for rotatably fixed doors - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a rotatably cross-fixed door mounting structure that is less likely to cause a failure or breakage of the mounting portion between the rotating body and the door, and can reduce the running cost. [Structure] The doors 6, 6 ... Are rotatably attached to the four corners of the hollow quadrangular rotary body 5 via the mounting portions 12, respectively, and can be folded along one surface of the rotary body 5. It is formed to have a width dimension smaller than the width dimension of one surface of the rotary body 5, and when the rotation angle of the door body 6 is within a predetermined range, the mounting body 12 holds the door body 6 to a neutral position. A door hinge device 13 is provided that applies a restoring biasing force to the door body and releases the biasing force when the force exceeds the predetermined range.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a rotatably cross-fixed door body such as a revolving door provided at a doorway of a hotel, an air dome, or an airport.

[0002]

[Prior art]

 In a revolving door in which four doors are rotatably cross-fixed, four doors are arranged and fixed in a cross-shaped cylinder in a cylindrical cylinder provided with an entrance / exit, and are provided at the center of the cylinder. The rotary body can be rotated within the cylinder. Such a revolving door can maintain a high level of confidentiality even when a large number of users continuously enter and exit, so it is essential at the entrance and exit of an air dome where the indoor air pressure must be kept above a certain level. In addition to the above requirements, it is used in hotels and various structures for the purpose of improving air-conditioning efficiency.

However, since the revolving door that has been generally used conventionally has a small inner diameter of 3 m or less and the space formed by the door bodies is small, it is possible for a user to pass through the door at one time. The number of buildings that are installed in a small number is limited, and because the rotation speed of the door and the gait must be synchronized and it must go around the rotating body in an arc toward the exit, It had the drawback of being difficult. Furthermore, since the distance between the doors is small, if they do not enter between the doors in a timely manner, they will collide with the doors, or they will be pinched between the doors and the vertical frame of the cylinder door. Since there is a risk of accidents, it has the drawback that it is difficult for people with large luggage, people with physical disabilities, or old people and children who are not used to using revolving doors. For this reason, it is unavoidable to install a normal doorway near the revolving door in Japan, but for the reasons described above, the majority of people use this normal door body, which makes There was a problem that the revolving door was not used so much and could not contribute to the improvement of airtightness.

In order to solve the above-mentioned problems, it is sufficient to make the revolving door large in size and increase the space partitioned by the door body and the door body. In this way, the user is provided between the door body and the cylinder. The possibility of an accident in which a car is caught is greatly reduced. However, if the revolving door becomes large, the inertial force acting on the door due to rotation increases as the weight of the door attached to the revolving body increases, and in the unlikely event that the user is caught between the door and the cylinder. In the case of accidents or when the vehicle passes through the revolving door and falls in and out, and is collided with the door body due to a fall or the like, a new accident may occur which is unexpected in the conventional revolving door.

Further, since the four door bodies are firmly fixed to the rotating body, the door body and the cylinder can be secured when the user or other hand luggage is sandwiched between the door body and the cylinder. There is a drawback in that the life of the mounting part is shortened because it is damaged or excessive force is concentrated and applied to the mounting part. In addition, the above-mentioned problem shortens the life of the mounting part because excessive force is concentrated and applied to the mounting part of the door even when the rotating body suddenly stops due to the action of the safety device. Therefore, the number of periodic inspections and the number of parts that need to be replaced are large, which causes a problem of high running cost.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned problems, and many users can pass through it at one time, and even in the event of a disaster, anyone can safely escape without hindering evacuation. Even if it is sandwiched between the door and the cylinder, the impact is small, and there is no danger of developing a major accident such as a bone fracture.In addition, the mounting part between the rotor and the door will also be damaged or destroyed. It is intended to obtain a door body mounting structure in a relatively large revolving door or the like, which is difficult and can reduce the running cost.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the mounting structure of the rotatably cross-fixed door body of the present invention uses a rotating body that radially installs four door bodies and a rotatably rotatably supporting this rotating body. In a mounting structure of a rotatably cross-fixed door body, which is composed of a cylindrical cylinder having entrances and exits through which a person can enter and exit at opposed positions, and a driving body for rotating the rotating body in a speed-controllable manner, the cylinder is at least The above-mentioned four doors having an inner diameter of 3 m or more are rotatably attached to the four corners of the hollow quadrangular prism-shaped rotary body through the respective mounting portions, and can be folded along one surface of the rotary body. As described above, the width of the one surface of the rotating body is made smaller than that of the one surface of the rotating body, and the door is returned to the neutral position at the mounting portion when the rotation angle of the door is within a predetermined range. Urging force Body to act on, characterized in that a door hinge device for releasing the urging force when exceeding said predetermined range. Further, each of the four door bodies is connected to a control device for controlling the drive of the driving body, and outputs a detection signal when the door bodies rotate about the mounting portion from the neutral position by a predetermined angle or more. The sensor may be provided on the mounting portion.

[0008]

[Action]

 Since the door body is rotatably attached to the rotating body via the attachment part, when the user's body part is sandwiched between the rotating door body and the cylinder entrance / exit, the door body rotates. By rotating to the opposite side of the rolling direction, it is possible to prevent a major accident from occurring. Also, even if many people rush into the revolving door at the time of a disaster such as a fire or an earthquake, pressing the door will open the door toward the outside centering on the mounting part. You can escape to the outside. Also, since the door can be folded along one surface of the rotating body and there is no unnecessary protrusion, it does not prevent many people from escaping through the rotating door even in the above emergency. Furthermore, in the case where a sensor that outputs a detection signal when the door rotates from the neutral position by a predetermined angle or more is provided, the user's body or the like hits the door and the door moves to one side around the mounting part. When the sensor rotates more than a predetermined angle, the sensor detects the rotation of the door and outputs a detection signal to stop the rotation of the door, which prevents the door from hindering the escape. . Further, the mounting portion of the door body is mounted even when a user or other baggage is caught between the door body and the cylinder, or when the rotating body suddenly stops due to the action of a safety device. Since excessive force is prevented from concentrating on the ground, there is no cause of damage or failure, and running costs can be reduced.

[0009]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings, but the present invention is not limited to this embodiment. FIG. 1 is a perspective view of an example of a revolving door. In FIG. 1, reference numeral 2 is an inlet / outlet provided on the opposing surface of the cylinder 4, reference numeral 5 is a hollow rectangular prism-shaped rotating body, and reference numeral 6 is a rotary body at each of four corners of the rotating body 5 via mounting portions 12. It is a door body that is attached and rotates in the cylinder 4 together with the rotating body 5. Further, the revolving door 1 is provided with various safety devices for ensuring the safety of the user. For example, the vertical frame 7 of the entrance / exit 2, the lower horizontal frames of the doors 6, 6 ... and the entire length of the lower part of the rotating body 5 output a sensing signal when a part of the user's body comes into contact. A touch sensor (not shown) for stopping the rotation of the doors 6, 6 ... Is provided.

2 is a plan view for explaining the mounting structure of the rotating body 5 and the doors 6, 6, ..., FIG. 3 is a plan view showing the details of the mounting portion, and FIG. 4 is a partially broken view of FIG. It is a side view. The doors 6, 6 ... Are attached to the ceiling 8 side of the four corners of the rotating body 5 via attachment portions 12. More specifically, one end of the doors 6, 6, ... Is attached to the rotary shaft 16 of the base plate 18, and a gear 15 that can rotate integrally with the rotary shaft 16 is known, for example, from Japanese Utility Model Laid-Open No. 60-157882. It meshes with the gear 14 of the door hinge device 13. The door hinge device 13 is fixed to the base plate 18 with a bolt, and a return spring for automatically returning the door body 6 to the neutral position, and for returning the door body 6 by the return spring at a smooth and constant speed. It has a built-in hydraulic damper. Further, the door hinge device 13 is provided with a release mechanism for releasing the return force of the door body by the return spring when the door body 6 is rotated by an arbitrary angle (front and rear 50 ° in this embodiment) or more. ing.

Reference numeral 17 indicates that when a part of the user's body is sandwiched between the door body 6 and the vertical frame 7 of the doorway 2 or collides with the door body and the door body rotates from the neutral position by a predetermined angle or more. It is a switch as a sensor that outputs a detection signal. The push rod portion 17a of the switch 17 is pressed against the convex portion 19a formed with a constant width on the detection plate 19 that can rotate together with the rotation shaft 16. When the rotation angle of the door body 6 exceeds a predetermined angle (in this embodiment, 25 ° in the front-rear direction), the push rod portion 17a is disengaged from the convex portion 19a and protrudes, whereby the switch 17 is turned on or off and driven. The rotation of the body S is stopped. Needless to say, the predetermined angle for stopping the rotation of the doors 6, 6, ... Can be adjusted by appropriately selecting the width of the convex portion 19a.

Next, the operation of the present invention will be described. When the door body 6 is strongly pushed forward or backward with respect to the rotation direction, the door body 6 rotates about the rotation shaft 16, but this rotation angle is within a predetermined range (for example, 50 degrees). In some cases, the door hinge device 13 causes the door body 6 to slowly return to the neutral position. If the predetermined range is exceeded, the restoring force for returning the door body 6 to the neutral position is released, and the door bodies 6, 6 ... Can be folded toward the rotating body 5 side (see FIG. 5C). When a part of the body of the user H is sandwiched between the door body 6 and the vertical frame 7 of the cylinder 4 or hits the door body 6, the door body 6 rotates about the rotation shaft 16. (See FIG. 5A). When the rotation angle becomes a predetermined angle (for example, 25 degrees to one side) or more, the switch 17 is turned on or off, a detection signal is output, the driving body S is stopped, and the door bodies 6, 6 ,. Stop rotation. In this case, since the driving body S is provided with a separate braking device B (see FIG. 2), the door bodies 6, 6 ... Stop immediately.

When the user escapes from between the door body 6 and the vertical frame 7 of the cylinder 4 after the rotation of the door bodies 6, 6 ... Stops, the push rod portion 17a of the switch 17 is switched by the convex portion 19a. When the switch 17 is pushed into the switch 17, the switch 17 operates in the opposite manner to the above, the power is supplied to the driving body S, and the operation is restarted. At this time, the voice information device or the like notifies the user of the restart of the rotation of the doors 6, 6 ... In advance by voice or the like, so that the rotations of the doors 6, 6 ,. be able to. In addition, even if a crowd of people intrudes into the revolving door 1 during a disaster such as an earthquake or fire, the door body 6 can be easily opened by pushing the door body 6 to the outside, so that it is possible to safely escape to the outdoors (Fig. 5 (See (B)). Although the brake device B has been described as being provided separately from the driving body S such as a servomotor in the above-described embodiment, it is provided as a separate body by adopting a driving body such as a brake motor having a brake mechanism. Needless to say, it is no longer necessary to install the brake device of.

[0014]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. Since the revolving door has a relatively large cylinder inner diameter of 3 m or more, many people can go in and out at once, so the number of revolving doors can be reduced compared to the conventional one, and an old man unfamiliar with the revolving door or a large baggage can be carried. People and wheelchair users can easily enter and exit. Even if the user is caught between the door and the cylinder, or if the user falls over and collides with the door, the door will rotate around the mounting part, causing a major accident such as a bone fracture. Can be avoided. Since the rotor has a hollow quadrangular prism shape and the width of the door and the dimension of one side of the rotor are approximately the same, the so-called dead space near the rotor, which is not normally used, is effectively used and the hollow portion of the rotor is effectively used. By taking up a large space, it is possible to create various displays and attract the attention of passers-by. Even if a large number of people rush into this revolving door in an emergency such as an earthquake or fire, the door can be opened to the outside, so many people can escape to the outdoors at once. Therefore, it can be installed in theaters that were not suitable for installation up to now, and the versatility of the rotating door is improved. The door body can be folded along one side of the rotating body, and since part of the door body does not travel than the rotating body, it is possible to fold the door body and let many users go in and out smoothly. Besides, it is also convenient when opening the entrance at times of season change or when it is not necessary to maintain airtightness and when changing the indoor and outdoor air. By effectively using the so-called dead space, the width can be made smaller than that of a conventional revolving door having the same diameter, so that when the user collides with the door or the door and the cylinder. The impact is small even when it is sandwiched between the door and a large accident, and the inertial force that acts on the mounting part of the door is also small, which greatly reduces the damage and failure of the door and the mounting part. Can be made. Since the door body that has been rotated by the action of the door hinge device of the door body slowly returns to the neutral position, it is possible to prevent an injury or the like due to a sudden return of the door body. A sensor equipped with a sensor to stop the rotation of the door when the door has rotated more than a specified angle is designed to rotate the door when the user is caught or hit between the door and the cylinder. Since it stops, the safety of the revolving door can be further improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an example of a revolving door.

FIG. 2 is a plan view of an explanatory view of a door body mounting structure.

FIG. 3 is an enlarged plan view of a main part of FIG.

FIG. 4 is a side view of FIG.

5A and 5B are explanatory views of the operation of the present invention, in which FIG. 5A is a view explaining the operation of the sensor, FIG. 5B is a view showing a state in which the door is opened in an emergency, and FIG. It is a figure which shows the folded state.

[Explanation of symbols]

 1 Revolving Door 2 Entry / Exit 4 Cylinder 5 Rotating Body 6 Door 12 Mounting part 13 Door Hinge Device 14, 15 Gear 17 Switch (Sensor)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Altmann, Bernd Germany Danube Altheim Dillingen 8880 St. Vitas Schutlasse 11

Claims (2)

[Scope of utility model registration request] 1. A rotator for radially mounting four doors, a cylindrical cylinder having rotatably rotatably rotatably mounted therein and an entrance for allowing a user to enter and exit, and a speed of the rotator. In a mounting structure of a rotatably cross-fixed door body including a controllably rotating driving body, the cylinder has an inner diameter of at least 3 m, and the four door bodies are hollow quadrangular prism-shaped rotating bodies. Each of the four corners is rotatably mounted via a mounting portion, and is formed to have a width dimension smaller than a width dimension of the one surface of the rotating body so as to be folded along the one surface of the rotating body. When the rotation angle of the door body is within a predetermined range, a biasing force for returning the door body to a neutral position is applied to the portion, and when the predetermined range is exceeded, the biasing force is released. Door Hin The installation structure of the rotatably cross-fixed door body is characterized by the provision of a device. 2. The four door bodies are each connected to a control device for controlling the drive of a driving body, and a detection signal is output when the door bodies rotate about the mounting portion from a neutral position by a predetermined angle or more. The mounting structure for a rotatably cross-fixed door body according to claim 1, wherein a sensor for outputting is provided in the mounting portion.