JPH0626251A - Locking device for revolving door - Google Patents

Abstract

PURPOSE:To revolve a cylindrical door in the specified direction and make the opening part of the revolving door coincide with the entrance/exit even when the solenoid to regulate the rotation of the cylindrical door is failured. CONSTITUTION:A hollow cylindrical door 10 is provided in a rotatable manner between side walls 6,7 opposite to a separating wall 3 to partition the inside 1 and the outside 2, and an opening part 10A which is made to coincide with the entrance/exit 4,5 between the side walls is provided on the cylindrical surface of this cylindrical door. In the revolving door where a judgement is made whether or not the passer-by is a registered person by a collating device 41 when being rotated to the position where this opening part 10A is closed, a working metal piece is fixed to the upper part of the cylindrical door, and a locking lever having a first locking part and a second locking part which are abutted the working metal piece when being rotated to the position where the opening part 10A is closed by the side wall is provided in a rotatable manner. The rotation of the locking lever is regulated by the electrical lock while a judgement is made whether or not the passer-by is a registered person by the collating device 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a revolving door in which two sections are separated by a separating wall, and the separating wall is provided to control passage of the section.

[0002]

2. Description of the Related Art A revolving door of this type is actually used in Japanese Utility Model Sho 62-1.
There is one disclosed in Japanese Patent No. 44383. In this type, a side wall is provided on a partition wall that separates the room from the outside, and a cylindrical door having a space for only one person to pass inside is rotatably provided on the side wall. An opening will be formed in a part of the entrance to allow passersby to
Alternatively, from the room, enter the cylindrical door through this opening, rotate the cylindrical door 90 °, and close the opening with the side wall. If there is a registrant, the cylindrical door is further rotated in the same direction, the opening is aligned with the other entrance, and the passerby inside the cylindrical door is passed. ing. In this conventional revolving door, it is necessary to lock the cylindrical door with an electric lock so that a passerby cannot manually rotate in the cylindrical door until the determination result of the collating device is obtained. It is locked by an electric lock having the structure shown in Japanese Patent No. 44988. In this electric lock, a locking piece having a locking hole is fixed to the shaft upper part of the cylindrical door, and a solenoid is driven into this locking hole until the passerby determines that the passerby is a registrant. The locking rod is inserted and the cylindrical door is locked.However, due to a solenoid failure or the like, the locking rod remains in the locking hole and the cylindrical door cannot rotate in any direction. There is the problem of trapping passers-by in a cylindrical door.

[0003]

In order to solve this problem, an electric lock, for example, a locking rod fixed to the shaft upper portion of a cylindrical door is brought into contact with a locking rod driven by a sonoid, so that With the structure that restricts the movement of the door, even if the locking rod does not rise due to a malfunction of the solenoid or the like, the cylindrical door can be rotated in the opposite direction to that in which the passerby is not confined.

However, in this electric lock, when the cylindrical door is rotated from the indoor side to the outdoor side and when the cylindrical door is rotated from the outdoor side to the indoor side, the position where the locking rod abuts the locking piece. Are different, and the width l of the locking piece and the diameter d of the locking rod are different.
The stop position of the cylindrical door is displaced by l + d, that is, a gap is created between the opening and the arc-shaped side wall in the cylindrical door, and the opening does not coincide with the entrance / exit. Therefore, in order to obtain a predetermined opening width in the cylindrical door, the outer diameter of the cylindrical door must be increased, which causes a problem that the entire revolving door becomes large.

The present invention has been made in order to solve such a problem, and it is possible to rotate a cylindrical door in a fixed direction even if a solenoid for restricting the rotation of the cylindrical door fails. An object of the present invention is to provide a lock device for a revolving door that can always match the opening of the revolving door with the entrance.

[0006]

In order to achieve the above object, in the lock device for a revolving door of the present invention, an arcuate side wall is provided which opposes a partition wall for partitioning the room from the outside, and a hollow space is provided between the side walls. A cylindrical door is rotatably provided, an opening corresponding to the doorway between the side walls is provided by cutting out a part of the cylindrical surface of the cylindrical door, and when the opening is rotated to a position closed by the side wall, In a revolving door in which whether a passerby is a registrant or not is determined by a collating device for a cylindrical door, an operating metal member is fixed above the cylindrical door, and the opening is brought to a position where it is closed by a side wall. At this time, a locking lever that comes into contact with the operating fitting is rotatably provided, and the locking lever is a first lever that can come into contact with the operating fitting.
A stopper having a same width as the actuating metal fitting is provided between the first locking portion and the second locking portion, and the opening of the cylindrical door is opened from the outside of the room. When rotating toward the indoor side, the first locking portion abuts on one end of the stopper, the second locking portion separates from the other end of the stopper, and the opening of the cylindrical door moves from the indoor side to the outdoor side. When rotating toward, the second locking portion can be switched so that the second locking portion contacts one end of the stopper and the first locking portion moves away from the other end of the stopper, and the locking lever is Until the passerby is determined to be a registrant by the collation device, rotation is restricted by an electric lock.

[0007]

In the lock device for a revolving door of the present invention described above,
The locking lever has a structure in which either the first locking portion or the second locking portion is brought into contact with the stopper, the other locking portion is separated from the stopper, and rotation is restricted by an electric lock. When the cylindrical door rotates, the operating metal fitting of the cylindrical door engages with the engaging portion that abuts against the stopper so as to restrict the rotation in only one direction. It can rotate in the opposite direction.

Further, a stopper having the same width as the actuating metal fitting fixed above the cylindrical door is provided between the first locking portion and the second locking portion of the locking lever, and the locking lever is attached to this stopper. Since the first locking part or the second locking part is brought into contact with the negative locking part, the first locking part and the second locking part can be connected to the stopper regardless of the rotation direction of the cylindrical door. It can abut the actuating fitting within the width dimension and the cylindrical door can always stop at a position where the opening is perfectly aligned with the doorway.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an external view of a revolving door according to this embodiment,
FIG. 2 is an arrow view of the revolving door viewed from above, and FIG. 3 is a vertical center cross-sectional view of the revolving door.

In these drawings, reference numeral 1 is an indoor space, 2 is an outdoor space, and the indoor space 1 and the outdoor space 2 are separated by a separating wall 3. An entrance / exit 4 that connects the room 1 and the exterior 2 is opened in the separation wall 3, and extends to the room 1 side orthogonal to the separation wall 3 across the entrance / exit 4, and an entrance / exit 5 is provided at this end. Side walls 6 and 7 are provided.

Between the side wall 6 and the side wall 7, there is provided a cylindrical door 10 which rotates about a vertical axis.
An opening 10A serving as a doorway for a passerby extending in the axial direction with the same width as the doorway 4 and the doorway 5 is provided in a part of the cylindrical surface of 0, and the inside of the cylindrical door 10 is occupied by one passerby. A space portion 10B necessary and sufficient for entering is formed.

The upper surface of the cylindrical door 10 is closed and the ceiling 11 is closed.
A cross-shaped support member 12 extending radially outward from the center of the shaft is attached to the outer surface of the ceiling 11 via a plurality of pedestals 13. The rotary shaft 14 protrudes upward, and an end portion of the rotary shaft 14 is mounted on a suspension frame body 15 which is bridged between the side wall 6 and the side wall 7 in parallel with the separation wall 3 via a bearing 16. It is rotatably attached. A circular frame 17 having a predetermined radius is provided on the support member 12 coaxially with the rotary shaft 14, and the circular frame 17 has a bracket 18 protruding inward in the radial direction. But the hanging frame 1
It is attached at a position at the center of the width of the opening 10A of the cylindrical door 10 at an angle of 90 ° with respect to 5. At the center of the bracket 18, there is provided a cylindrical actuating fitting 19 that projects upward from the axis of the circular frame 17.

The lower surface of the cylindrical door 10 is open, and its end is supported by a plurality of guide rollers (not shown) arranged in an annular groove 21 provided in the floor 20 of the building. A mat switch 22 is arranged under the floor 20 divided by the annular groove 21.
Whether or not a person is present inside the cylindrical door 10 is detected by whether or not a load above a certain level is applied to the. The mat switch 22 is connected to the controller 23 and sends a detection signal to the controller 23 when a load is detected.

Reference numeral 25 denotes a motor which serves as a drive device for rotating the cylindrical door, and is hung and fixed on the outer periphery of the circular frame 17 via a power transmission mechanism 26 composed of a plurality of pulleys, for example. It is connected to a belt 27 fixed to the circular frame 17 by metal fittings. Motor 25 is controller 23
The motor 25 is rotated by a rotation command from the controller 23, and the rotation of the motor 25 causes the power transmission mechanism 2 to rotate.
The cylindrical door 10 is rotated by being transmitted to the circular frame body 17 via the belt 6 and the belt 27.

A pulse encoder 30 counts the number of pulse waveforms obtained by converting the rotation of the motor 25 by means not shown. The pulse encoder 30 is input with initial data in which the rotation angle of the cylindrical door 10 is the number of pulse waveforms, and when the number of pulse waveforms matching these data is counted, the controller 23 receives the pulse waveforms. Send a pulse signal.

Reference numeral 35 denotes a lock device which will be described in detail later, and comprises a frame body 37 equipped with an electric lock 36 and a locking lever 38 rotatably attached to the frame body 37.
The locking lever 38 can be brought into contact with the peripheral surface of the actuating fitting 19 of the bracket 18, that is, the cylindrical door 10 is rotated counterclockwise from the position where the opening 10A coincides with the entrance / exit 4 of the separating wall 3. The operating metal fitting 17 is provided on the suspension frame body 15 so as to abut the locking lever 38 when rotated by 90 degrees.

On one side of the space 10B in the cylindrical door 10, a collating device 41 for discriminating a registrant, for example, a card reader 43 is provided. This card reader 4
When a predetermined card is inserted, the reference numeral 3 is read and collated with the stored information registered in advance to determine whether or not the user is a registrant. Each registered signal is output to the controller 23.

Next, details of the revolving door locking device 35 shown in FIGS. 1 to 3 will be described with reference to FIG.

In FIG. 4, reference numeral 45 denotes a rectangular mounting base, and one end portion in the longitudinal direction thereof has a mounting hole 4 vertically penetrating therethrough.
6, a small hole 47 is provided at the other end, and a locking hole 48 that penetrates vertically is provided at the center, and is covered with a frame 37 having a hollow portion with the upper surface 45a as the bottom.

Reference numeral 50 is a locking pin, and a screw portion 50A projecting in the axial direction is integrally formed at one end thereof.
Reference numeral 51 denotes a stiffener, which is placed on the locking pin 50 by fitting a small hole 51a provided in the horizontal plate portion 51A into the outer periphery of the screw portion 50A of the locking pin 50. On the horizontal plate portion 51A of the bracket 51, a cylindrical member 52 having a concave cross-section is provided with a hole 52a provided at the bottom of the cylindrical member 52.
The cylindrical member 52 is fitted and mounted on the outer periphery of 0A.
The nut 53 is screwed into the threaded portion 50A protruding into the recess 52A of the housing, and the locking pin 50 is rotated and tightened to form an assembly including the rail plate 51, the tubular member 52, and the locking pin 50. 54 is formed. The assembly 54 includes the locking pin 50 from the inside of the frame 37 and the locking hole 4 of the mounting base 45.
8 is slidably fitted into the frame 8, and the locking pin 5 is placed outside the frame 37.
0 is projected and the rubber member 5 is attached to the upper surface 45a of the mounting base 45.
It is placed through 5.

The electric lock 36 comprises a solenoid 57 covered by a box and a locking rod 58 which is energized by the solenoid 57 and driven into the solenoid 57 by an electromagnetic force. One end of the locking rod 58 is a solenoid. 56 projecting outside.
In the electric lock 36, the locking rod 58 is provided in the recess 52 of the tubular member 52.
The connection pin 59 is fitted from inside the tubular member 52 from the outside of the tubular member 52.
Is connected to the cylindrical member 52 and the locking rod 58 in order, and the solenoid 57 is attached to the side wall in the frame 37 via a member not shown. Solenoid 57
When an energization command is received from the controller 23, is energized to generate an electromagnetic force and move the locking rod 58 axially upward. Further, a preload spring 58A is interposed between the solenoid 57 and the horizontal plate portion 51A of the bracket 51.

Reference numeral 60 denotes a limit switch, which is a frame body 37.
It is attached to the inner side wall by means not shown. In the limit switch 60, the solenoid 57 of the electric lock 36 is energized to move the locking rod 58 into the solenoid 57, and following this movement, the contact plate 51 moves the solenoid 5 by a predetermined distance.
When it is moved to the 7 side, it is turned on by the tip of the vertical plate portion 51B that bends from the horizontal plate portion 51A of the rail plate 51 and extends toward the solenoid 57 side of the electric lock 36. The limit switch 60 sends a signal to the controller 23 when it is in the "ON" state. Reference numeral 61 is a manual lever for moving the locking pin 50.

The locking lever 38, as shown in FIG.
8A and a fan-shaped plate portion 38B are integrally formed at one end of the engaging portion 38A, and the outer periphery of the plate portion 38B is covered with a synthetic rubber or the like protruding outward in the radial direction at a predetermined angle. A first locking portion 62 and a second locking portion 63 are provided. Further, the plate portion 38B has a rotation hole 38a penetrating in the axial direction in the central portion thereof, and a small hole 38b is provided on the circumference located radially outward of the rotation hole 38a. .

As shown in FIGS. 4 and 5, the locking lever 38 is mounted on the side surface 45b of the mounting base 45 on the mounting hole 46 side between the first locking portion 62 and the second locking portion 63. The first locking portion 62 is engaged with the stopper 64 having the same width as the outer diameter of the actuating metal fitting 19 and the side surface 38d of the engaging portion 38A is projected from the mounting base 45 to the outside of the frame 37. A bush 66 engaged with the pin 50 and fitted with the rotary pin 65 having a threaded portion 65A at its tip into the rotary hole 38a,
The nut 68 is screwed through the washer 67 to the threaded portion 65A projecting from the mount 45 into the frame 37 through the mounting hole 46 in order, and the rotary pin 65 is rotated and tightened to mount the mount 45. It is rotatably supported. As a result, the locking lever 38 is in a non-rotatable state due to the engagement with the stopper 64 and the engagement with the locking pin 50. When the solenoid 57 is energized,
The electromagnetic force moves the locking rod 58 to the solenoid 57 side,
This movement causes the locking pin 50 to follow and move, and the locking pin 50 is separated from the engaging portion 38A of the locking lever 38, so that the locking lever 38 becomes rotatable. Also,
The locking lever 38 projects in the direction opposite to the inside of the frame 37, and the spring pin 69 fitted in the small hole 38b of the locking lever 38 and the inside of the frame 37 project in the opposite direction. The first locking portion 62 is held at a position where it engages with the stopper 64 by a switching spring 71 that is installed between the spring pin 70 that is fitted in the small hole 47 of the mounting base 45 and the spring. .

The lock device 35 having such a structure
1, the first locking portion 6 of this locking lever 38 in FIG.
2 is on the entrance / exit 5 side, and the second locking portion 63 is on the entrance / exit 4 side so that the actuating metal fittings 19 can be brought into contact with each other in response to the rotation of the cylindrical door 10. Is attached to.

As shown in FIG. 7, the controller 23 includes a load meter 22, a motor 25, a pulse encoder 30, an electric lock 36 via a relay 59, and a limit switch 6.
0, and when the signals from the mat switch 22, the pulse encoder 30, and the limit switch 60 are input, a forward / reverse rotation signal is sent to the motor 25,
Further, the electric lock 36 is turned on / off.

The lock device 35 for the revolving door according to the embodiment of the present invention is constructed as described above. Next, the operation of the lock device 35 will be described.

1. When a passerby enters the room from outside:
For convenience of explanation, the first locking portion 62 of the locking lever 38 contacts the stopper 64, and the locking lever is locked by the electric lock 36.
38 is supposed to be non-rotatable.

(1) When a passerby approaches the entrance / exit 4 of the revolving door, a detection sensor (not shown) detects the passerby.
As a result, a rotation signal is sent from the controller 23 to the motor 25, the cylindrical door 10 is rotated, and the opening 1
0A is matched with doorway 4.

(2) When a passerby enters the space 10B of the cylindrical door 10, the presence of the passerby is detected by the mat switch 22.
The detection signal is sent to the controller 23. The controller 23, to which this detection signal is input, sends out a forward rotation signal (a signal for rotating the cylindrical door 10 counterclockwise) to the motor 25, and the motor 25 receives the power transmission member 26, The cylindrical door 10 is rotated 90 ° counterclockwise via the belt 27. When the motor 25 rotates, the pulse encoder 30 measures the pulse waveform, counts a predetermined pulse waveform, and sends a pulse signal to the controller 23. Then, the opening 10A of the cylindrical door 10 is closed by the side wall 7, and the controller 23 which has received this pulse signal sends a rotation stop signal to the motor 25 to rotate the motor 25. Stop.
At this time, when the cylindrical door 10 is rotated 90 ° in the counterclockwise direction, the actuating metal fitting 19 causes the first locking portion 62 of the locking lever 38 to move.
However, the cylindrical door 10 is restricted from rotating in the same direction, but in the opposite direction in which the cylindrical door 10 has rotated, it becomes possible for a passerby to manually rotate the same. There is.

(3) The cylindrical door 10 is rotated 90 ° in the counterclockwise direction to a position where the opening 10A of the cylindrical door 10 is closed. Here, when a passerby inserts a predetermined card into the card reader 43, the card reader 43 reads the data written in the card and is registered in advance. Match with stored information.

When the card reader 43 determines that the user is a registrant, the card reader 43 is controlled by the controller 2.
A registration signal is sent to 3. The controller 23, which has received this registration signal, energizes the solenoid 57 of the electric lock 36 by means not shown. Then, the energized solenoid 57 moves the locking rod 58 toward the solenoid 57 side against the spring force of the spring 58A by this electromagnetic force, and moves the locking pin 50. As a result, the locking lever 38 is unlocked and becomes rotatable.

Next, the assembly 54 is moved by the electric lock 36, the tip of the vertical plate portion 51B of the bracket 51 is engaged with the limit switch 60, and the limit switch 60 is engaged.
Is turned on, the controller 23 outputs a forward rotation signal to the motor 25 again. The motor 25, to which this positive rotation signal is input, rotates the cylindrical door 10 through the power transmission member 26 and the belt 27 in the same direction (counterclockwise direction) by 90 ° to open the opening 10A of the cylindrical door 10.
And the doorway 5 are matched. At this time, the locking lever 38
Is unlocked by the electric lock 36 and is in a rotatable state, so that the actuating metal fitting 19 abutting on the first locking portion 62 of the cylindrical door 10 moves in accordance with the rotation of the cylindrical door 10. The locking lever 38 rotates in the same direction as the rotation direction and pushes out the first locking portion 62 of the locking lever 38 in a direction away from the stopper 64, and the locking lever 38 rotates about the rotation pin 65. As a result, the first locking portion 62 separates from the stopper 64, the second locking portion 63 approaches the stopper 64 side, and the actuating metal fitting 19 finally separates from the first locking portion 62. Then, the second locking portion 62 is brought into contact with the stopper 64 by the spring force of the switching spring 71, that is, the first locking portion 62 is separated from the stopper 64, and the second locking portion 63 is stopped. The state of being in contact with 64 is maintained. Then, when the pulse encoder 30 counts a predetermined number of pulse waveforms, a pulse signal is sent to the controller 23. A controller that inputs this pulse signal
The motor 23 sends a rotation stop signal to the motor 25,
The rotation of the rotor 25 is stopped and the energization of the solenoid 57 is released. As a result, the locking rod 58 is pushed toward the locking lever 38 side by the spring force of the spring 58A, the locking pin 50 moves to the locking lever 38 side, and finally the locking lever 38 moves. It comes into contact with the side surface 38e of the engaging portion 38A and enters a locked state in which the rotation of the locking lever 38 is restricted.

If the card reader 43 determines that the user is not a registrant, the card reader 43 is controlled by the controller 2
The registered signal is output to 3. And controller 23
Outputs a reverse drive signal (a signal for rotating the cylindrical door 10 in the clockwise direction) to the motor 25, and the motor 25 which has received this reverse drive signal receives the power transmission mechanism 26 and the belt 27.
The cylindrical door 10 is rotated 90 ° clockwise through the, and the cylindrical door 10 is returned to a position where the opening 10A and the doorway 4 coincide with each other.

(3) Passenger passes through the space 10B of the cylindrical door 10
When it goes out of the cylindrical door 10 from the inside, the mat switch 22
Does not detect the presence of a passerby, the controller 23 sends a forward rotation signal to the motor 25, and the cylindrical door 1
The 0 is again rotated to the position where the opening 10A is closed by the side wall 7.

2. When a passerby goes out from the room:
For convenience of explanation, the opening 10A of the cylindrical door 10 is at a position closed by the side wall 7, and the second locking portion 63 of the locking lever 38 is in contact with the stopper 64 and the actuating fitting 19. And

(1) When a passerby approaches the doorway 5 of the revolving door, a detection sensor (not shown) detects the passerby.
Then, the controller 23 sends a normal rotation signal (a signal for rotating the cylindrical door 10 counterclockwise) to the motor 25, the cylindrical door 10 is rotated 90 °, and the opening 10A coincides with the doorway 5. Let

(2) Next, when a passerby enters the space portion 10B of the cylindrical door 10, as described in 1 above, the mat switch 22
Detects the presence of a passerby, the controller 23 sends a reverse rotation signal (a signal for rotating the cylindrical door 10 clockwise) to the motor 23, and the motor 25 causes the power transmission mechanism. 26 and the belt 27, the cylindrical encoder 10 is rotated 90 ° clockwise until the pulse encoder 30 counts a predetermined number of pulse waveforms. At this time, the actuating metal fitting 19 comes into contact with the second locking portion 63 of the locking lever 38 to restrict the cylindrical door 10 from rotating in the same direction, but the cylindrical door 10 rotates. In the opposite direction, it can be rotated manually by a passerby.

(3) The opening 10A of the cylindrical door 10
When the door is closed by the side wall 7, a passerby inserts a predetermined card into the card reader 43, and the card reader 43 determines whether or not the person is a registrant.

When the card reader 43 determines that the user is a registrant, the locking lever 38 is unlocked by the electric lock 36 and the cylindrical door 10 is rotated by the motor 25 as described in 1 above.
The pulse encoder 30 is rotated 90 ° in the clockwise direction until the pulse encoder 30 counts a predetermined number of pulse waveforms. At this time, the locking lever 38 is rotated in the same direction as the rotation direction of the cylindrical door 10 with the rotational movement of the actuating fitting 19, and the first locking portion 62 of the locking lever 38 is stopped by the stopper 64.
The second locking portion 63 is separated from the stopper 64,
The state is maintained by the spring force of the spring 71. Then, when the opening 10A of the cylindrical door 10 is rotated until it coincides with the doorway 4, the locking lever 38 is again locked by the electric lock 36.
Is locked.

When the card reader 43 determines that the person is not a registered person, the cylindrical door 10 is rotated until it coincides with the doorway 5 as described in 1 above.

Thus, according to this embodiment of the present invention,
When the opening 10A of the cylindrical door 10 is rotated from the outdoor side 2 toward the indoor side 1 through the recess 40, the locking lever 38
The first locking portion 62 contacts the stopper 64, the second locking portion 63 separates from the stopper 64, and the electric lock 36 restricts the rotation. For this reason, when the opening 10A of the cylindrical door 10 is rotated until the opening 10A of the cylindrical door 10 is closed by the side wall 7, the actuating fitting 19 of the cylindrical door 10 is moved to the first position of the locking lever 38.
Until the colliding device 41 determines that the passer-by in the cylindrical door 10 is a registrant, the cylindrical door 10 is restricted from rotating toward the room 1 side until it comes into contact with the locking portion 62 and its movement is restricted. . At this time, the second locking portion 63 is separated from the stopper 64, the actuating metal fitting 19 can move to the outdoor side 2, and the opening 10A of the cylindrical door 10 is recessed from the indoor side 1 to the recess 40. When rotating to the outdoor 1 side through
The second locking portion 63 of the locking lever 38 comes into contact with the stopper 64 to restrict the movement of the working metal fitting 19, and the first locking portion 62 is separated from the stopper 64 to move the working metal fitting 19 toward the indoor side 1. Since it is movable, the cylindrical door 10 can be manually rotated even if the locking pin 50 is not lifted due to a failure of the electric lock 36 and the locking lever 38 cannot be rotated. Do not lock in the cylindrical door 10.

The first locking portion 62 and the second locking portion 62 of the locking lever
A stopper 64 having the same width as the outer diameter of the actuating fitting 19 is provided between the actuating fitting 19 and the engaging portion 63 so that the actuating fitting 19 is the first of the engaging lever 38.
Since the movement of the actuating fitting 19 is restricted within the width of the stopper 64, that is, the position where it abuts on the locking portion 62 and the position where it abuts on the second locking portion 63, the cylindrical door 10 is restricted. The opening 10A of the cylindrical door 10 can always be stopped at a position aligned with the doorway 4 and the doorway 5 regardless of the rotation direction.

[0045]

As described in detail above, according to the revolving door locking device of the present invention, the locking lever abuts either the first locking portion or the second locking portion against the stopper. When the cylindrical door rotates, the other locking portion is separated from the stopper, and the rotation is regulated by an electric lock.
Since the operating metal fitting of the cylindrical door is engaged with the locking portion that abuts on the stopper to restrict the rotation in only one direction,
Since the cylindrical door can be manually rotated in the direction opposite to the above-described rotation direction, it is possible to prevent a passerby from being trapped in the cylindrical door even if the electric lock does not operate due to a failure or the like.

Further, a stopper having the same width as the actuating metal fitting fixed above the cylindrical door is provided between the first locking portion and the second locking portion of the locking lever, and the locking lever is attached to this stopper. Since the first locking part or the second locking part is brought into contact with the negative locking part, the first locking part and the second locking part can be connected to the stopper regardless of the rotation direction of the cylindrical door. It can abut the actuating fitting within the width dimension, and the cylindrical door can always stop at the position where the opening is completely aligned with the entrance and exit, it is not necessary to change the outer diameter of the cylindrical door, and the revolving door itself can be There is no need to make it large.

[Brief description of drawings]

FIG. 1 is an external view showing an entire revolving door as an embodiment of the present invention.

FIG. 2 is a view from above in FIG.

3 is a cross-sectional view of FIG.

FIG. 4 is a vertical cross-sectional view showing the locking device in FIGS. 1 and 2.

5 is a lower arrow view showing the lock device in FIG. 4. FIG.

FIG. 6 is a view showing a locking lever of the locking device in FIGS. 4 and 5;

FIG. 7 is a diagram showing the connection of the controllers in FIGS. 1 to 3;

[Explanation of symbols]

 1 Indoor 2 Outdoor 3 Separation Wall 4, 5 Entrance / Exit 6, 7 Side Wall 10 Cylindrical Door 10A Opening 19 Actuating Metal Fitting 36 Electric Lock 38 Locking Lever 41 Matching Device 62 First Engaging Part 63 Second Engaging Part 64 Stopper

Claims (1)

[Claims] 1. An arc-shaped side wall is provided opposite to a partition wall that divides the room from the outside, and a hollow cylindrical door is rotatably provided between the side walls. An opening corresponding to the entrance between the side walls is provided, and when the opening is rotated to a position where the side wall is closed, the collating device of the cylindrical door determines whether the passerby is a registrant. In a revolving door, an operating metal fitting is fixed above the cylindrical door, and when the opening is rotated to a position where it is closed by a side wall, a locking lever that comes into contact with the operating metal fitting is rotatably provided. The lever includes a first locking portion and a second locking portion that can come into contact with the actuating fitting.
A locking portion is provided, and a stopper having the same width as the actuating metal fitting is provided between the first locking portion and the second locking portion, and the opening of the cylindrical door is rotated from the outdoor side to the indoor side. When the first locking portion is brought into contact with one end of the stopper and the second locking portion is separated from the other end of the stopper, the opening of the cylindrical door is rotated from the indoor side to the outdoor side, The second locking portion is switchable such that the second locking portion abuts on one end of the stopper and the first locking portion moves away from the other end of the stopper, and the locking lever is a passerby by the collation device. A lock device for a revolving door, characterized in that rotation is restricted by an electric lock until it is determined that the user is a registrant.