JP2019131991A - Automatic open/close folding door - Google Patents

Abstract

To provide an automatic open/close folding door which prevent the folding door in a close status from folding in an open direction even when external force is applied to a connecting part connecting two door panel with a hing of the holding door in an open direction with a simple device configuration.SOLUTION: A folding door 10 configured by foldably connecting two door panels 11d, 11f with a hinge 20 comprises: an electric magnet 80 arranged on the hinge 20 to hold a status of the hinge 20 in which the folding door is closed using magnetic force; and an electric magnet lock control unit arranged in a control unit controlling the folding door 10 to open/close, being configured to hold the status of the hinge 20 in which the folding door 10 is closed using the magnetic force of the electric magnet 80 by energizing the electric magnet 80 when the door 10 closes and release the magnetic force created by the electric magnet 80 by unenergizing the electric magnet 80 before the folding door 10 starts closing motion when the folding door 10 opens from a closed status.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an automatic opening and closing folding door that automatically opens and closes a folding door in which two doors are connected so as to be bent by a hinge.

  2. Description of the Related Art Conventionally, an automatic opening / closing folding door is formed by connecting one end portions of two doors so that they can be folded by a hinge, and the folding door is closed with two doors arranged in a substantially straight line. It becomes a state, and it will be in the state opened in the state which bent the connection part by a hinge (for example, refer patent document 1).

Japanese Utility Model Publication No. 6-3971

  Such an automatic open / close folding door may be bent at the hinged connection part when the folding door is pushed in the opening direction due to changes in wind pressure or careless human operation with the folding door closed. is there.

  In order to solve such a problem, it is also possible to use an electrically controllable electric lock at the connecting part of the two doors to prevent the folding part from being bent at the connecting part by the hinge when the folding door is closed. It is done. However, there is a problem that a separate control unit for controlling the electric lock has to be provided, which complicates the apparatus configuration.

  The present invention has been made in view of the above, and is a case where an external force is applied in a direction in which a connecting portion of two doors by a hinge of a folding door is opened with the folding door closed with a simple device configuration. It is an object of the present invention to provide an automatic folding door that can prevent folding in the opening direction.

  In order to solve the above-described problems and achieve the object, an automatic open / close folding door according to claim 1 of the present invention is a hinge in a state in which a folding door in which two doors are connected so as to be bent by the hinge is closed. An electromagnet provided in the hinge so as to maintain the state of the magnetic field using a magnetic force and a control unit that controls opening and closing of the folding door. When the folding door is closed, the electromagnet is turned on. When the folding door is closed by using the magnetic force of the electromagnet, and the folding door is opened from the closed state, the electromagnet is turned off before starting to drive the folding door. And an electromagnet lock control unit that controls the magnetic force generated by the electromagnet to be released as an energized state.

  In order to solve the above-described problems and achieve the object, an automatic open / close folding door according to claim 2 of the present invention uses a magnetic force in a state where a folding door in which two doors are connected so as to be bent by a hinge is closed. An electromagnet provided on an end face on the hinge mounting side of one door of the two doors to be held and the hinge of the other door of the two doors so as to be attracted by the magnetic force of the electromagnet When the folding door is closed, when the folding door is closed, the electromagnet is energized and the magnetic force of the electromagnet is used. When holding the folding door closed by adsorbing the attracting part to the electromagnet, and opening the folding door from the closed state, the electromagnet is de-energized before starting to close the folding door. Previous as condition And having an electromagnet lock control unit for controlling so as to cancel the magnetic force by the electromagnet, the.

  The automatic opening / closing folding door according to claim 3 of the present invention is characterized in that, in the above invention, an electric wire connecting the control unit and the electromagnet is routed in a frame of the door.

  In the automatic opening / closing folding door according to claim 4 of the present invention, in the above invention, the electromagnet is provided on the door disposed on the end side of the doorway of the two doors, and the control unit An electric wire connecting the electromagnet and the electromagnet is routed in a frame of a door disposed on an end portion side of the doorway.

  According to a first aspect of the present invention, there is provided an automatic opening / closing folding door that uses a magnetic force to hold the hinge in a state in which a folding door in which two doors are connected so as to be bent by the hinge is closed. When the electromagnet is provided and the folding door is closed, the electromagnet is energized to maintain the hinge state in the closed state using the magnetic force of the electromagnet, and the folding door is closed. In the case of opening from the state, an electromagnet lock control unit that controls the electromagnet to be in a non-energized state and releases the magnetic force by the electromagnet before starting the drive to close the folding door is a control unit that controls opening and closing of the folding door Since it is provided, the connecting part of the two doors by the hinge of the folding door is prevented from being folded in the opening direction even when an external force is applied in the opening direction with the folding door closed. Rukoto can.

  The automatic opening / closing folding door according to claim 2 of the present invention is one door of the two doors so as to hold the closed state in which the two doors connected to each other so as to be bent by a hinge are closed by using magnetic force. An electromagnet is provided on an end surface of the hinge on the attachment side, an adsorption portion is provided on an end surface of the other door of the two doors on the attachment side of the hinge so as to be adsorbed by the magnetic force of the electromagnet, and the folding door is closed In this case, the electromagnet is energized, the magnetic door is used to hold the attracting portion to the electromagnet, and the folding door is kept closed, and the folding door is opened from the closed state. In this case, an electromagnet lock control unit is provided in the control unit for controlling the opening / closing of the folding door so that the electromagnet is de-energized before starting the driving to close the folding door and the magnetic force by the electromagnet is released. Therefore, it is possible to prevent the connecting portion of the two doors by the hinge of the folding door from being folded in the opening direction even when an external force is applied in the opening direction with the folding door closed with a simple device configuration. it can.

  In the automatic opening / closing folding door according to claim 3 of the present invention, since the electric wire connecting the control unit and the electromagnet is routed in the frame of the door, the electric wire is connected using the door frame. Can be protected.

  In the automatic opening / closing folding door according to claim 4 of the present invention, the electromagnet is provided in the door disposed on the end side of the doorway among the two doors, and connects the control unit and the electromagnet. Since the electric wire is routed in a door frame arranged on the end side of the doorway, the electric wire can be protected using the door frame, and further on the end side of the doorway. The electric wire can be routed toward the control unit along a frame of an automatic opening / closing folding door that constitutes an end of the doorway from a door frame to be arranged.

FIG. 1 is a diagram schematically illustrating an automatic opening / closing folding door according to a first embodiment of the present invention. FIG. 2 is a block diagram showing a control configuration of the automatic opening / closing folding door shown in FIG. FIG. 3 is a perspective view showing the vicinity of the hinge of the folding door. FIG. 4 is a diagram for explaining a state of the electric wire routed from the electromagnet provided at the hinge of the left folding door in FIG. 1 to the control unit among the two folding doors. FIG. 5 is a diagram for explaining a state of an electric wire routed from the electromagnet provided at the hinge of the right folding door in FIG. 1 to the control unit among the two folding doors. 6A is a partial cross-sectional view of the vicinity of the hinge portion from the upper end surface side of the folding door, and FIG. 6B is a partial cross-sectional view of the vicinity of the hinge portion from the front side of the folding door. . FIG. 7 is an exploded perspective view of a hinge provided with an electromagnet. FIG. 8 is a flowchart showing a control procedure of the folding door lock control processing by the electromagnet lock control unit. FIG. 9 is a perspective view of the vicinity of the hinge of the automatic opening / closing folding door according to a modification. FIG. 10 is a diagram schematically illustrating an automatic opening / closing folding door according to a second embodiment of the present invention. FIG. 11 is a perspective view showing the periphery of a portion where the electromagnet of the folding door is provided.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an automatic opening / closing folding door according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram schematically illustrating an automatic opening / closing folding door 1 according to a first embodiment of the present invention. FIG. 1 is a diagram of the automatic opening / closing folding door with the front portion cover removed so that the drive mechanism 30 can be seen.
FIG. 2 is a block diagram showing a control configuration of the automatic opening / closing folding door 1 shown in FIG. FIG. 3 is a perspective view showing the vicinity of the hinge 20 of the folding door 10. 4 illustrates the state of the electric wire W routed from the electromagnet 80 provided to the hinge 20 of the left folding door 10L in FIG. 1 to the control unit 70 out of the two folding doors 10R and 10L. FIG. FIG. 5 illustrates a state of the electric wire W routed from the electromagnet 80 provided to the hinge 20 of the folding door 10R on the right side in FIG. 1 to the control unit 70 among the two folding doors 10R and 10L. FIG. 6A is a partial cross-sectional view of the vicinity of the hinge 20 portion from the upper end surface side of the folding door 10, and FIG. 6B is a partial cross-sectional view of the vicinity of the hinge 20 portion from the front side of the folding door 10. FIG.
FIG. 7 is an exploded perspective view of the hinge 20 provided with the electromagnet 80.
In FIG. 7, the bearing B is not shown.
The automatic opening / closing folding door 1 according to the first embodiment of the present invention includes a folding door 10 in which two doors 11d and 11f are connected to each other so as to be bent by a hinge 20, and a control unit based on signals from various sensors. 70 automatically controls opening and closing of the folding door 10.

  This automatic open / close folding door 1 is a folding door 10 provided on the left and right with the approximate center of the doorway G as a boundary (hereinafter, the right folding door 10R and the left folding door are referred to when the left and right folding doors are distinguished from each other). 10L), a drive mechanism 30 for opening and closing the folding door 10, an object detection sensor 40 for detecting an object approaching the doorway G, and information for controlling the opening and closing position, opening and closing speed of the folding door 10, etc. Obtained from the magnetic position sensor 50, the safety light switch 60 for preventing a person from being caught in the folding door 10 when the folding door 10 is opened and closed, the object detection sensor 40, the magnetic position sensor 50, and the safety light switch 60. And a control unit 70 that controls the opening and closing of the folding door 10 based on the control information.

First, the folding door 10 will be described.
In the folding door 10, two doors 11 d and 11 f are connected by a hinge 20 so as to be bent. The right-side folding door 10R and the left-side folding door 10L are connected to the timing belt 34 by the door 11d on the center side of the entrance / exit G, whereby the driving side door 11d (hereinafter referred to as “driving side door”) The doors 11f on both ends of the doorway G are driven doors 11f (hereinafter referred to as “driven doors”) that are driven by the driving doors 11d.

  Since the right folding door 10R and the left folding door 10L have substantially symmetrical configurations with the center of the entrance G as a boundary, the left folding door 10L will be described in detail as a representative.

  As shown in FIG. 3, the left folding door 10 </ b> L includes a connecting bracket 12 that is connected to the timing belt 34 on the upper end surface of the end portion on the opposite side of the connecting side of the driving side door 11 d to the driven side door 11 f by the hinge 20. Are connected.

The connecting fitting 12 includes a door 12 a placed on the guide rail 13, and connects the end of the drive side door 11 d to the timing belt 34 in a state where the door 12 a is placed on the guide rail 13.
As shown in FIG. 1, the connecting bracket 12 of the left folding door 10L is connected to the lower part of the timing belt 34, and the connecting bracket 12 of the right folding door 10R is connected to the upper part of the timing belt 34. ing.

  The driven side door 11f is rotatably attached to the frame 14 of the automatic opening / closing folding door 1 at the upper end surface of the end opposite to the side connected to the drive side door 11d by the hinge 20.

  The hinges 20 are respectively provided on both upper and lower end surfaces of the end portion that is a connecting portion between the driven side door 11f and the driving side door 11d, but the bearing side hinge portion 21 and the shaft side hinge portion 24, which will be described later, are positioned vertically. Since the configuration is substantially the same except for a minute configuration such as whether they are overlapped on the side, the detailed configuration will be described as a representative of the hinge 20 attached to the upper end portion of the left folding door 10L.

  The hinge 20 is made of a metal material, and as shown in FIG. 7, the bearing-side hinge portion 21 and the shaft-side hinge portion 24 are rotatably connected.

The bearing-side hinge portion 21 includes a bearing-side hinge main body portion 22 and a bearing portion 23.
The bearing-side hinge main body 22 has a fixing portion 22a that is fixed to the driven-side door 11f by screws and an electromagnet 80, and the bearing-side hinge main body 22 is the most rotatable range of the hinge 20. And an electromagnet holding / accommodating portion 22b formed with an abutting surface 22bb that abuts against a shaft-side hinge main body portion 25, which will be described later, in an expanded state.

The fixing portion 22a is formed with a screw insertion hole 22aa so as to penetrate the wall of the bearing-side hinge main body portion 22.
The fixing portion 22a is configured such that the bearing-side hinge portion 21 is fixed to the upper end surface of the driven-side door 11f by a screw S passed through the screw insertion hole 22aa.

  The electromagnet holding / accommodating portion 22b is configured such that the electromagnet 80 including the iron core 80a and the coil 80b is held and accommodated so that the end surface is aligned with the abutting surface and the end surface is exposed.

The electromagnet holding and accommodating portion 22b is configured such that the electric wire W is drawn from the electromagnet 80 toward the control portion 70 from the end surface opposite to the abutting surface 22bb.
As shown in FIG. 4, the electric wire W connecting the electromagnet 80 and the control unit 70 is routed in the frame 14 of the driven door 11f.
Note that the electric wire W that connects the electromagnet 80 of the right folding door 10R and the control unit 70, which is not described, is also routed in the frame 14 of the driven door 11f as shown in FIG.

  The bearing portion 23 is a portion serving as a bearing for the shaft portion 26 provided in the shaft-side hinge portion 24, and a bearing hole 23a into which the shaft portion 26 is fitted is provided.

The shaft side hinge portion 24 includes a shaft side hinge main body portion 25 and a shaft portion 26.
The shaft-side hinge main body 25 includes a fixing portion 25a that is a portion to be screwed and fixed to the drive-side door 11d, and a shaft-side hinge main body 25 in a state in which the shaft-side hinge main body 25 is most widened as a rotation range of the hinge 20. And an abutting portion 25b having an abutting surface 25bb abutted against the portion 22.
The abutting surface 25bb functions as an attracting surface on which the electromagnet 80 is attracted.

A screw insertion hole 25aa is formed in the fixing portion 25a so as to penetrate the wall of the shaft side hinge main body portion 25.
The fixing portion 25a is configured such that the shaft side hinge portion 24 is fixed to the upper end surface of the driving side door 11d by a screw S that has passed through the screw insertion hole 25aa.

The shaft portion 26 is a shaft serving as a rotation center of the hinge 20.
As shown in FIG. 6B, a bearing B is disposed between the shaft portion 26 and the bearing portion 23 so that the hinge 20 can be smoothly moved.

Next, the known drive mechanism 30 will be described.
As shown in FIG. 1, for example, the drive mechanism 30 is disposed at a position separated from the drive pulley 32, a drive motor 31 realized by a brushless DC motor, a drive pulley 32 connected to the drive motor 31, and the like. The driven pulley 33 and the driving pulley 32 and the timing belt 34 laid over the driven pulley 33 are included.
The drive pulley 32 and the drive motor 31 are connected via a reduction gear (not shown).

The object detection sensor 40 is installed, for example, at the front portion of the automatic opening / closing folding door 1, detects a person or an object approaching the folding door 10, and outputs a detection signal to the control unit 70.
Note that the number of object detection sensors 40 is not limited to one, and is provided at a plurality of locations such as the indoor side or the outdoor side. Control may be performed.

In the magnetic position sensor 50, a Hall IC that rotates the drive motor 31 is built in the drive motor 31 as the magnetic position sensor 50 (see FIG. 1). In FIG. 1, for convenience of explanation, the magnetic position sensor 50 is illustrated as a separate body from the drive motor 31.
The pulse signal generated from the Hall IC as the magnetic position sensor 50 is proportional to the amount of movement of the drive side door 11d, and by counting the pulse signal, the control unit 70 opens and closes the opening / closing position and opening / closing speed of the folding door 10. Etc. can be controlled.

  The safety light switch 60 is realized by, for example, a photoelectric sensor and a switching circuit, detects a person or an object passing through the folding door 10, and outputs the object detection signal to the control unit 70.

The control unit 70 is realized by a microcomputer and controls opening and closing of the folding door 10.
As shown in FIG. 2, the control unit 70 is electrically connected to the drive motor 31, the object detection sensor 40, the magnetic position sensor 50, the safety light switch 60, and the electromagnets 80 provided on the plurality of hinges 20. Connected.

When the control unit 70 receives a signal indicating that a person or object approaching the folding door 10 has been detected from the object detection sensor 40, the control unit 70 drives and controls the drive motor 31 to open the folding door 10.
When the drive motor 31 is controlled to open the folding door 10, the timing belt 34 is rotated clockwise in FIG. For this reason, the drive side door 11d is moved from the center side of the entrance / exit G toward the left end while the left folding door 10L, to which the connecting bracket 12 is connected to the lower part of the timing belt 34, folds the connecting part by the hinge 20.
Further, the drive side door 11d is moved from the center side of the entrance / exit G toward the right end while the right folding door 10R, to which the coupling fitting 12 is coupled to the upper portion of the timing belt 34, folds the coupling portion by the hinge 20.

  In addition, the control unit 70 controls the folding door 10 to open and then closes the folding door 10 when the safety light switch 60 receives a signal indicating that a person or object passing through the folding door 10 is not detected. Drive control of the drive motor 31 is performed.

Note that when the drive motor 31 is driven and controlled to close the folding door 10, the timing belt 34 is rotated counterclockwise in FIG. For this reason, the drive side door 11d is moved from the left end of the doorway G toward the center while the left folding door 10L, to which the connecting bracket 12 is connected to the lower part of the timing belt 34, linearly expands the bent portion of the hinge 20. The
In addition, the drive side door 11d is moved from the right end of the doorway G toward the center while the right folding door 10R in which the connecting bracket 12 is connected to the upper stage portion of the timing belt 34 extends the bent portion of the hinge 20 linearly. .

  Further, when the folding door 10 is closed, the control unit 70 keeps the state of the hinge 20 in a state where the electromagnet 80 is energized and the folding door 10 is closed using the magnetic force of the electromagnet 80. When the door is opened from the closed state, an electromagnet lock control unit 71 is provided for controlling the electromagnet 80 to be in a non-energized state and releasing the magnetic force from the electromagnet 80 before starting to close the folding door 10.

Hereinafter, the lock control process of the folding door 10 by the electromagnet lock control part 71 is demonstrated using FIG.
FIG. 8 is a flowchart showing a control procedure of the lock control process of the folding door 10 by the electromagnet lock control unit 71.
In addition, the lock control process of the folding door 10 demonstrated here shall be the state which the automatic opening / closing folding door 1 closed the folding door 10 as an initial state, and shall assume that each electromagnet 80 is an energized state.

First, the electromagnet lock control unit 71 determines whether or not a signal for opening the folding door 10 has been received (step S101).
In step S101, the electromagnet lock control unit 71 receives a signal indicating that the folding door 10 is to be opened depending on whether or not the object detection sensor 40 outputs a signal indicating that a person or object approaching the folding door 10 has been output to the control unit 70. Judging whether or not.

When receiving a signal to open the folding door 10 (step S101; Yes), the electromagnet lock controller 71 deenergizes each electromagnet 80 (step S102).
That is, the electromagnet lock control unit 71 releases the lock of the folding door 10 by each electromagnet 80 when the object detection sensor 40 outputs a signal that detects a person or object approaching the folding door 10 to the control unit 70.
In the process of de-energizing each electromagnet 80 in S102, the object detection sensor 40 outputs a signal that detects a person or object approaching the folding door 10 to the control unit 70, and then sets the folding door 10 to the open position. Performed before drive control.
As described above, when the folding door 10 is changed from the closed position to the open position, the magnetic force of each electromagnet 80 that has maintained the state of the hinge 20 in the state in which the folding door 10 is closed is released. The folding door 10 can be moved to the open position while 20 is freely movable.

  In step S101, when the electromagnet lock control unit 71 has not received a signal for opening the folding door 10 (step S101; No), the electromagnet 80 is energized and the determination process of step S101 is repeated.

In step S102, the electromagnet lock control unit 71 determines whether or not the folding door 10 is closed after de-energizing each electromagnet 80 (step S103).
In this step S103, the electromagnet lock control unit 71 determines whether the folding door 10 has been controlled by the control unit 70 using the output signals of the magnetic position sensor 50 and the safety light switch 60 to close the folding door 10 or not. It is determined whether or not it has been closed.

When the electromagnet lock control unit 71 determines that the folding door 10 is closed (step S103; Yes), the electromagnet 80 is energized (step S104), the process returns to step 101, and the above-described process is repeated.
That is, the electromagnet lock control unit 71 locks the electromagnets 80 when the control for closing the folding door 10 using the output signals from the magnetic position sensor 50 and the safety light switch 60 by the control unit 70 is completed.
The control unit 70 detects that a person or an object has passed through the folding door 10 based on detection information from the safety light switch 60 and starts driving for closing the folding door 10 by the drive mechanism 30, thereby detecting the magnetic position sensor. Whether or not the folding door 10 has been placed in the closed position is determined based on the detection information by 50.

  Thus, when the electromagnet 80 provided in each hinge 20 is energized in the state in which the folding door 10 is closed, the folding door 10 in which the two doors 11d and 11f are connected to be able to be folded by the hinge 20 is closed. The state of the hinge 20 is held using magnetic force.

  In step S103, when the electromagnet lock control unit 71 determines that the folding door 10 is not closed (step S103; No), the electromagnet 80 is kept in a non-energized state, and the determination process of step S103 is repeated.

  The automatic opening / closing folding door 1 according to the first embodiment of the present invention uses the magnetic force of the state of the hinge 20 in a state in which the folding door 10 in which the two doors 11d and 11f are connected so as to be bent by the hinge 20 is closed. When the electromagnet 80 is provided on the hinge 20 so as to be held and the folding door 10 is closed, the electromagnet 80 is energized and the state of the hinge 20 in the closed state is maintained using the magnetic force of the electromagnet 80. When the folding door 10 is opened from the closed state, the electromagnet lock control unit 71 that controls the electromagnet 80 to be in a non-energized state and releases the magnetic force by the electromagnet 80 before starting to close the folding door 10 is folded. 10 is provided in the control unit 70 that controls the opening and closing of the door 10, and the connecting portion of the two doors 11 d and 11 f by the hinge 20 of the folding door 10 is in a state where the folding door 10 is closed with a simple device configuration. Ku can be prevented that the external force is broken in the direction of opening even if it is applied in the direction.

  Moreover, since the electric wire W which connects the control part 70 and the electromagnet 80 is routed in the flame | frame 14 of the door 11f, the automatic open / close folding door 1 which concerns on Example 1 of this invention attaches the flame | frame 14 of the door 11f. The electric wire W can be protected using it.

  Further, in the automatic opening / closing folding door 1 according to the first embodiment of the present invention, the electromagnet 80 is provided on the door 11f disposed on the end side of the doorway G out of the two doors 10d, 10f, Since the electric wire W connecting the electromagnet 80 is routed in the frame 14 of the door 11f arranged on the end side of the doorway G, the electric wire W can be protected using the frame 14 of the door 11f. Furthermore, the electric wire W is routed toward the control unit 70 along the frame 15 of the automatic opening / closing folding door 1 constituting the end of the entrance / exit G from the frame 14 of the door 11f arranged on the end side of the entrance / exit G. be able to.

Next, a modified example of the automatic opening / closing folding door 1 according to the first embodiment of the present invention will be described with reference to FIG.
FIG. 9 is a perspective view of the vicinity of the hinge 27 of the automatic opening / closing folding door 2 according to a modification.

The modified automatic opening / closing folding door 2 is different from the automatic opening / closing folding door 1 of the first embodiment in that a hinge 27 having a known configuration is used.
Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The hinge 27 has a known configuration, and a pair of plate-like portions 27a and 27b are connected so as to be rotatable about a rotation shaft portion 27c.
The hinge 27 of this modification has an opening 27aa so that the end surface of the electromagnet 80 is exposed to a plate-like portion 27a that is screwed to the end surface of the driven door 11f.

  The electromagnet 80 is provided on the hinge 27 so that the end face exposed from the opening matches the end face of the plate-like portion 27a.

  The surface of the plate-like portion 27b that is screwed and fixed to the end surface of the drive side door 11d functions as the attracting surface 27bb of the electromagnet 80.

  The automatic open / close folding door 2 of this modification is configured to hold the state of the hinge 27 in a state in which the folding door 10 to which the two doors 11d and 11f are connected so as to be bent by the hinge 27 is closed by using magnetic force. When the electromagnet 80 is provided on the hinge 27 and the folding door 10 is closed, the electromagnet 80 is energized and the magnetic force of the electromagnet 80 is used to maintain the state of the hinge 27 in the closed state. When the door 10 is opened from the closed state, the electromagnet lock control unit 71 that controls the electromagnet 80 to be de-energized to release the magnetic force by the electromagnet 80 before the folding door 10 is started to open and close is opened and closed. Since it is provided in the control unit 70 to be controlled, the connecting portion of the two doors 11d and 11f by the hinge 27 of the folding door 10 with a simple device configuration as in the automatic opening and closing folding door 1 of the first embodiment. External force in the opening direction in a state where the folding door 10 is closed it is possible to prevent Slight direction of opening even if it is acting.

Next, the automatic opening / closing folding door 3 according to the second embodiment of the present invention will be described with reference to FIGS. 10 and 11.
FIG. 10 is a diagram schematically showing the automatic opening / closing folding door 3 according to the second embodiment of the present invention. FIG. 11 is a perspective view showing the periphery of a portion where the electromagnet 80 of the folding door 10 is provided.

In the automatic opening / closing folding door 3 of the second embodiment, the electromagnet 80 is not provided on the hinge 28, but is provided on the end face on the attachment side of the hinge 28 of the two doors 11 d and 11 f of the folding door 10. It differs from the automatic opening and closing folding door 1 of the first embodiment in that it is.
Other configurations are the same as those of the first embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The automatic open / close folding door 3 is one of the two doors 11d and 11f so as to hold the closed state in which the folding door 10 to which the two doors 11d and 11f are connected by a hinge 28 is closed. An electromagnet 80 is provided on the end face on the attachment side of the hinge 28 of 11f.
In the second modification, more specifically, the electromagnet 80 is provided on the end surface of the driven door 11f.
More specifically, the electromagnet 80 is provided at a substantially central position in the height direction of the driven side door 11f.

  Further, the automatic opening / closing folding door 3 is provided with an adsorbing portion 29 on the end face on the attachment side of the hinge 28 of the other door 11d of the two doors 11d and 11f so as to be adsorbed by the magnetic force of the electromagnet 80.

  The attracting portion 29 is made of a material that is attracted by the electromagnet 80. In the second modification, the attracting portion 29 is provided at a position facing the electromagnet 80 in a state where the folding door 10 is closed on the end surface of the drive side door 11d.

  The electromagnet lock control unit 71 is provided in a control unit that controls opening and closing of the folding door 10. When the folding door 10 is closed, the electromagnet 80 is energized and the electromagnet 80 uses the magnetic force of the electromagnet 80 to attract the electromagnet 80. When the folding door 10 is kept closed by being adsorbed and the folding door 10 is opened from the closed state, the electromagnet 80 is turned off before the driving for closing the folding door 10 is started. Control to release the magnetic force.

  The automatic opening / closing folding door 3 according to the second embodiment of the present invention is configured so that the folding door 10 to which the two doors 11d and 11f are connected so as to be bent by the hinge 28 is closed using magnetic force. An electromagnet 80 is provided on the end face of the door 11f of the door 11f on the attachment side of the hinge 28, and the attachment side of the hinge 28 of the other door 11d of the two doors 11d and 11f is attracted by the magnetic force of the electromagnet 80. When the adsorbing portion 29 is provided on the end face and the folding door 10 is closed, the folding door 10 is closed by energizing the electromagnet 80 by using the magnetic force of the electromagnet 80 with the electromagnet 80 energized. When the folding door 10 is opened from the closed state, the electromagnet 80 is set in a non-energized state to release the magnetic force from the electromagnet 80 before starting the driving for closing the folding door 10. Since the electromagnet lock control unit 71 to be controlled is provided in the control unit 70 that controls the opening and closing of the folding door 10, the connecting portion of the two doors 11 d and 11 f by the hinge 28 of the folding door 10 has a simple device configuration. Even when an external force is applied in the opening direction in the closed state, it can be prevented from being folded in the opening direction.

  In addition, although Example 1 and 2 of this invention, and the automatic opening and closing folding doors 1, 2, and 3 which concern on a modification illustrated what has two folding doors 10R and 10L, the number of the folding doors 10 is two. Not limited to this, it may be one or more.

  Moreover, although the automatic opening / closing folding doors 1, 2, and 3 which concern on Example 1, 2 of this invention and the modification have illustrated what provided the electromagnet 80 in the driven side door 11f of the folding door 10, it does not restrict to this. The electromagnet 80 may be provided on the drive side door 11d.

  The invention made by the present inventor has been specifically described based on the above-described embodiments of the invention. However, the present invention is not limited to the above-described embodiments of the invention and does not depart from the gist thereof. Various changes can be made.

1, 2, 3 Automatic opening / closing folding door 10, 10R, 10L Folding door 11d, 11f Door 12 Connecting bracket 12a Door wheel 13 Guide rail 14, 15 Frame 20, 27, 28 Hinge 21 Bearing side hinge part 22 Bearing side hinge body part 22a Fixed portion 22aa Screw insertion hole 22b Electromagnet holding and accommodating portion 22bb Abutting surface 23 Bearing portion 23a Bearing hole 24 Shaft side hinge portion 25 Shaft side hinge body portion 25a Fixed portion 25aa Screw insertion hole 25b Butting portion 25bb Abutting surface )
26 Shaft portions 27a, 27b Plate-like portions 27aa Openings 27bb Adsorption surfaces 27c Rotating shaft portions 29 Adsorption portions 30 Drive mechanisms 31 Drive motors 32 Drive pulleys
33 Driven pulley
34 Timing belt 40 Object detection sensor 50 Magnetic position sensor 60 Safety light switch 70 Control unit 71 Electromagnet lock control unit 80 Electromagnet 80a Iron core 80b Coil G Entrance / exit B B Bearing S Screw W Electric wire

In order to solve the above-described problems and achieve the object, the automatic opening / closing folding door according to claim 1 of the present invention can be bent by a hinge having one hinge portion and the other hinge portion that are rotatably connected. The abutment surface that is abutted against the other hinge portion in a state in which the folding door of the one hinge portion that is fixed to one door of the two doors is connected to the other door. And the folding door of the other hinge part that is fixed to the other door of the two doors is closed , and the end face is exposed from the abutting surface. When the surface that is abutted against the abutting surface in the state is provided in a suction portion provided as a portion that is attracted to the electromagnet, and a control portion that controls opening and closing of the folding door, and the folding door is closed, The electromagnet is energized When opening to the suction unit to the electromagnet using the magnetic force of the electromagnet holds the state of being closed doors folding by being adsorbed, the state of closing the folding door, the drive for opening the folding door And an electromagnet lock control unit that controls the electromagnet to be in a non-energized state before starting to release the magnetic force generated by the electromagnet.

The automatic opening / closing folding door according to claim 2 of the present invention is characterized in that, in the above invention, an electric wire connecting the control unit and the electromagnet is routed in a frame of the door.

In the automatic opening / closing folding door according to claim 3 of the present invention, in the above invention, the electromagnet is provided on the door disposed on the end side of the doorway of the two doors, and the control unit An electric wire connecting the electromagnet and the electromagnet is routed in a frame of a door disposed on an end portion side of the doorway.

Automatic opening and closing the folding door according to claim 1 of the present invention, one of the door of the two doors to the state capable of two doors folding is coupled door bending is closed by a hinge to hold by using a magnetic force An electromagnet is provided on an end surface of the hinge on the attachment side, an adsorption portion is provided on an end surface of the other door of the two doors on the attachment side of the hinge so as to be adsorbed by the magnetic force of the electromagnet, and the folding door is closed In this case, the electromagnet is energized, the magnetic door is used to hold the attracting portion to the electromagnet, and the folding door is kept closed, and the folding door is opened from the closed state. In this case, an electromagnet lock control unit is provided in the control unit for controlling the opening / closing of the folding door so that the electromagnet is de-energized before starting the driving to close the folding door and the magnetic force by the electromagnet is released. Therefore, it is possible to prevent the connecting portion of the two doors by the hinge of the folding door from being folded in the opening direction even when an external force is applied in the opening direction with the folding door closed with a simple device configuration. it can.

In the automatic opening and closing folding door according to claim 2 of the present invention, since the electric wire connecting the control unit and the electromagnet is routed in the frame of the door, the electric wire is connected using the door frame. Can be protected.

In the automatic opening / closing folding door according to claim 3 of the present invention, the electromagnet is provided on the door disposed on the end side of the doorway among the two doors, and connects the control unit and the electromagnet. Since the electric wire is routed in a door frame arranged on the end side of the doorway, the electric wire can be protected using the door frame, and further on the end side of the doorway. The electric wire can be routed toward the control unit along a frame of an automatic opening / closing folding door that constitutes an end of the doorway from a door frame to be arranged.

In order to solve the above-described problems and achieve the object, the automatic opening / closing folding door according to claim 1 of the present invention can be bent by a hinge having one hinge portion and the other hinge portion that are rotatably connected. The abutment surface that is abutted against the other hinge portion in a state in which the folding door of the one hinge portion that is fixed to one door of the two doors is connected to the other door. And the folding door of the other hinge part that is fixed to the other door of the two doors is closed, and the end face is exposed from the abutting surface. The abutment surface that is abutted against the abutment surface in a state of being in the state is provided in a suction portion provided as a portion that is attracted to the electromagnet, and a control unit that controls opening and closing of the folding door, and the folding door is closed If the electromagnet When the folding door is kept closed by energizing the electromagnet and using the magnetic force of the electromagnet, the folding door is opened when the folding door is opened from the closed state. An electromagnet lock control unit that controls the electromagnet to be in a non-energized state before driving to release the magnetic force generated by the electromagnet , and the one hinge unit and the other hinge unit include the two doors. A wall serving as a fixing portion fixed to each upper end surface is formed in a region where a shaft portion and a bearing portion are formed in the width direction of the door, and has a length that fits in the width of the door from the fixing portion. Further, the walls bent downward on the abutting side from the extended wall form the abutting surfaces of each other, and the electromagnet is formed from the extending wall and the wall forming the abutting surface. Characterized in that it is held accommodated in the space made.

Claims (4)

An electromagnet provided on the hinge so as to hold the state of the hinge in a state in which the folding door in which the two doors are connected so as to be bent by the hinge is closed, using magnetic force;
The hinge is provided in a control unit that controls opening and closing of the folding door, and when the folding door is closed, the hinge is in a state in which the electromagnet is energized and the folding door is closed using the magnetic force of the electromagnet. Holding and opening the folding door from a closed state, an electromagnet lock control unit for controlling the electromagnet to be in a non-energized state and releasing the magnetic force by the electromagnet before starting to close the folding door; and
An automatic opening / closing folding door characterized by comprising: An electromagnet provided on an end face of the door of one of the two doors on the attachment side of the hinge so as to hold a closed state in which the two doors are foldably connected by a hinge using a magnetic force; ,
An adsorption portion provided on an end surface of the other door of the two doors on the attachment side of the hinge so as to be adsorbed by the magnetic force of the electromagnet;
The folding door is provided in a control unit that controls opening and closing of the folding door. When the folding door is closed, the electromagnet is energized and the magnetism of the electromagnet is used to attract the suction portion to the electromagnet. When the folding door is opened from the closed state, the electromagnet is controlled so that the electromagnet is deenergized before the folding door is opened to release the magnetic force of the electromagnet. A lock controller;
An automatic opening / closing folding door characterized by comprising: The electric wire connecting the control unit and the electromagnet is
The automatic opening / closing folding door according to claim 1, wherein the automatic opening / closing folding door is arranged in a frame of the door. The electromagnet
Of the two doors, provided on the door disposed on the end side of the doorway,
The electric wire connecting the control unit and the electromagnet is
The automatic opening / closing folding door according to claim 1, 2 or 3, wherein the automatic opening / closing folding door is arranged in a frame of a door arranged on an end side of the doorway.

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