JP2004166980A - Electric device for opening and closing curtain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric device for opening and closing curtains for individually arranging the plurality of curtains at desired positions by the use of one motor. <P>SOLUTION: A carriage to be moved by motor in parallel with curtain rails is arranged just on the plurality of curtain rails. Solenoids are mounted on the carriage in accordance with the respective curtain rails. The curtains are suspended from the curtain rails by the use of curtain rings including a ferromagnetic part. When the carriage is moved while a current is made to flow in the solenoid, the curtain rings corresponding to the solenoid are attracted to the solenoid by magnetic force so as to draw the curtain. When the curtain is drawn to the desired position, the current flowing in the solenoid is stopped, the curtain rings are separated from the solenoid, and, then, the curtain is stopped at the desired position. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for automatically opening and closing a shielding material exemplified by a curtain.
[0002]
[Prior art]
2. Description of the Related Art There is known a technique for automatically opening and closing a shielding material such as a curtain or a blind by using a driving force of a motor. In particular, there is known a technique in which, when there are a plurality of shielding members, the same number of driving mechanisms as motors, wires, and the like are provided as many as the number of shielding members, and the opening and closing of the shielding members are individually controlled.
[0003]
There is known a control method in which a central control device performs raising and lowering control for a plurality of electric blinds collectively (see Patent Document 1).
[0004]
There is known a control method for detecting the position of each blind with respect to a plurality of electric blinds and performing raising / lowering control based on the detected positions (see Patent Document 2).
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. 7-224583 [Patent Document 2] Japanese Patent Application Laid-Open No. 8-210063 [0006]
[Problems to be solved by the invention]
An object of the present invention is to provide an electric curtain opening / closing apparatus and an electric curtain opening / closing method in which each of a plurality of curtains can be individually opened to a desired position by a driving force of one motor.
[0007]
It is another object of the present invention to provide an electric curtain opening / closing apparatus and an electric curtain opening / closing method in which a plurality of curtains are automatically opened and closed, and the size of a control unit is small.
[0008]
Still another object of the present invention is to provide an electric curtain opening / closing apparatus and an electric curtain opening / closing method in which a plurality of curtains are automatically opened and closed, and the manufacturing cost is low.
[0009]
Still another object of the present invention is to provide an electric curtain opening / closing apparatus and an electric curtain opening / closing method in which a plurality of curtains are automatically opened / closed and consume less power.
[0010]
Still another object of the present invention is to provide an electric curtain opening / closing apparatus and an electric curtain opening / closing method which do not cause a malfunction when an abnormal force is applied to the curtain.
[0011]
[Means for Solving the Problems]
Hereinafter, the means for solving the problem will be described using the numbers used in [Embodiments of the Invention] in parentheses. These numbers are added to clarify the correspondence between the description in the claims and the embodiment of the invention. However, those numbers should not be used to interpret the technical scope of the invention described in [Claims].
[0012]
An electric curtain opening and closing device (20, 120) according to the present invention includes a support (2, 8) for supporting a curtain (1), a power transmission unit (9), and a power transmission unit in response to an input opening / closing command. A driving unit (10) for driving (9) and a power transmission unit (9) are coupled to each other to hold and move the support units (2, 8) in response to an opening / closing command. A movable section (5, 7) for releasing the support section (2, 8).
[0013]
Such an electric curtain opening / closing device (20, 120) can freely move the curtain (1) manually when not performing the operation of opening and closing electrically, and is easy to handle.
[0014]
The support section (2, 8) further includes a plurality of support members (2, 8) corresponding to each of the plurality of curtains (1). The movable portions (5, 7) hold and move the support portions (2, 8) in response to the opening / closing command, and individually move each of the plurality of support members (2, 8) at a position determined by the opening / closing command. To release.
[0015]
Such an electric curtain opening / closing device (20, 120) makes it possible to arrange a plurality of curtains at desired positions with one driving unit (10). Even if the number of curtains increases, the structure of the electric curtain opening and closing device (20, 120) does not become too complicated, the cost is kept low, the installation place is small, the number of failures is small, and the maintenance is easy.
[0016]
The holding of the support members (2, 8) is performed by magnetic force. The holding of the support members (2, 8) is performed by a magnetic force generated by applying a current to the solenoid (7), and the release is performed by stopping the current flowing to the solenoid (7).
[0017]
According to such an electric curtain opening and closing device (20, 120), when an abnormal force is applied to the curtain (1), the support portions (2, 8) are disengaged from the movable portions (5, 7), and the driving portion (10) An abnormal force is prevented from being applied to the power transmission unit (9).
[0018]
The electric curtain opening / closing device (20, 120) further includes a position detector (12) for detecting the position of the movable part (5, 7) and outputting it as position information. The movable unit (5, 7) holds and releases the support unit (2, 8) in response to the opening / closing command using the position information.
[0019]
The drive (10) includes a motor (10). The position detector (12) is an encoder (12) that detects the number of rotations of the motor (10) and outputs position information.
[0020]
The electric curtain opening and closing device (20, 120) further includes a sensor (13) for detecting that the movable portion (5, 7) has reached the end of the movable range. When the sensor (13) detects the movable part (5, 7), the motor (10) is stopped, and the position detected by the position detector (12) is reset.
[0021]
According to such an electric curtain opening and closing device (20, 120), the detection value of the position detector (12) is reset when the movable portion (5, 7) reaches the end of the movable range, so that the detection value Is corrected.
[0022]
The movable part (5, 7) includes a collection part (14) that hooks and collects the support parts (2, 8) when moving in one predetermined direction (D1).
[0023]
According to such an electric curtain opening / closing device (20, 120), the operation of collectively collecting the curtains is reliably performed by simple control. According to such an electric curtain opening / closing device (20), when the curtains (1) are collectively collected, the operation of holding the support portions (2, 8) by the movable portions (5, 7) is not involved, so that the movable portion ( The heat generation in 5 and 7) is suppressed. In particular, when the holding is performed by magnetic force, heat generation is suppressed.
The electric curtain opening and closing device (20, 120) further includes a communication unit (21) connected to a communication network (23). The opening / closing command is received by the communication unit (21) via the communication network (23). According to such an electric curtain opening and closing device (20, 120), opening and closing of the curtain (1) is remotely controlled.
[0024]
The electric curtain opening / closing method according to the present invention includes a step (S6) of holding the supporting portions (2, 8) supporting the curtain (1) on the movable portion (5, 7) in response to the opening / closing command, and (S7) to move the movable parts (5, 7) and to release the support parts (2, 8) to the movable parts (5, 7) after the movement is completed (S8). I have.
[0025]
The electric curtain opening / closing method according to the present invention further comprises the step of causing the movable portion (5, 7) to hold a plurality of support members (2, 8) for individually supporting each of the plurality of curtains (1) in response to the opening / closing command. (S6), a step (S7) of moving the movable part (5, 7), and a step (S8) of individually releasing each of the plurality of support members (2, 8) at the position determined by the opening / closing command. Is provided.
[0026]
The holding of the support members (2, 8) is performed by the magnetic force of the solenoid (7). Release of the support members (2, 8) is performed by stopping the current flowing through the solenoid (7).
[0027]
BEST MODE FOR CARRYING OUT THE INVENTION
[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a partially omitted perspective view in which only one of a plurality of shafts 4 described later is drawn in the electric curtain opening / closing device 20 and the other shafts 4 are omitted. FIG. 2 is a side view of the electric curtain opening and closing device 20. FIG. 3 is a top view of the electric curtain opening and closing device 20.
[0028]
Referring to FIGS. 2 and 3, the electric curtain opening / closing device 20 includes a plurality of shafts 4 arranged in parallel. A configuration using a wire instead of the shaft 4 is also preferably used.
[0029]
A plurality of curtain rings 2 movable along the shafts 4 are attached to each of the plurality of shafts 4. The curtain 1 is suspended from each of the shafts 4 via a plurality of curtain rings 2.
[0030]
Among the plurality of curtain rings 2 attached to an arbitrary shaft 4, a suction plate 8 containing a ferromagnetic material is provided on the endmost curtain ring 2 in the second direction D2 which is one of the directions along the shaft 4. Is attached. Both ends of the shaft 4 are mounted inside the side plate 3 which is a rectangular frame.
[0031]
The electric curtain opening and closing device 20 includes a driving mechanism. The drive mechanism includes a wire 9, a motor 10, an idle pulley 11, an encoder 12, and a power source (not shown).
[0032]
A motor 10 is installed near one surface of the side plate 3 to which the shaft 4 is fixed. The motor 10 is supplied with power by wiring (not shown). The motor 10 is provided with an encoder 12 for detecting a rotation amount of the motor 10. The motor 10 is connected to a motor control unit 18 that controls the output of the motor 10. An idle pulley 11 is provided on the other surface of the side plate 3 to which the shaft 4 is fixed. A wire 9 is formed between the motor 10 and the idle pulley 11 to transmit a driving force of the motor 10 in a long loop in a direction parallel to the shaft 4. A configuration using an elastic belt instead of the wire 9 is also suitably used.
[0033]
The encoder 12 is used to read the position of the carriage 5 from the rotation amount of the motor 10. The electric curtain opening / closing device 20 using a potentiometer instead of the encoder 12 is preferably manufactured at a low cost.
[0034]
Inside the side plate 3 is a carriage 5. The carriage 5 has a sliding roller 6. Sliding roller guides 6a are provided on both sides parallel to the shaft 4 of the surfaces of the side plate 3. The carriage 5 is attached to the side plate 3 by a sliding mechanism including a sliding roller 6 and a sliding roller guide 6a so that the carriage 5 can linearly reciprocate in a direction parallel to the shaft 4.
[0035]
The carriage 5 is attached to the wire 9 and is pulled by the wire 9.
[0036]
The carriage 5 is provided with a plurality of solenoids 7 so as to be located on each of the plurality of shafts 4. Each solenoid 7 corresponds to each curtain 1.
[0037]
When the weight of the curtain 1 is large, a plurality of solenoids are used to support each curtain 1. In this case, a plurality of suction plates 8 are attached to the curtain ring 2 supporting each curtain 1 in one-to-one correspondence with the solenoids 7.
[0038]
The solenoid 7 is supplied with power by wiring (not shown). The current flowing through the solenoid 7 is controlled by a solenoid control unit 17.
[0039]
A collection plate 14 is provided below the end of the carriage 5 in the second direction D2. The collection plate 14 is installed at a position that interferes with the curtain ring 2 so that the curtain ring 2 can be pushed and moved when the carriage 5 moves in the first direction D1 opposite to the second direction D2. The carriage 5 is installed such that all the curtain rings are located in the first direction D1 with respect to the collection plate 14. When the carriage 5 installed at such a position moves in the first direction D1, all the curtain rings 2 are collected in the first direction D1 by the collection plate 14.
[0040]
A sensor 13 for detecting the position of the carriage 5 is provided inside a side surface of the side plate 3 parallel to the shaft 4. The sensor 13 is installed near the side plate 3 in order to detect that the carriage 5 has gathered all the curtain rings 2 near the side plate 3 in the first direction D1.
Referring to FIG. 4, the electric curtain opening / closing device 20 according to the present invention includes a communication unit 21 and a control unit 22. The communication unit 21 is connected to the Internet 23, receives an opening / closing command from a predetermined mobile phone 24 via the Internet 23, and sends it to the control unit 22.
FIG. 5 shows the configuration of the control unit 22. The control unit 22 includes a solenoid control unit 17 and a motor control unit 18.
[0041]
FIG. 6 is a flowchart showing the operation of the electric curtain opening / closing device 20 having the above configuration. FIG. 7 illustrates the relationship between the carriage 5 and the curtain ring 2 in the steps included in the flowchart of FIG.
[0042]
When the switch of the electric curtain opening and closing device 20 is turned on, the motor 10 is driven and the carriage 5 moves in the first direction D1. The curtain 1 is opened by the recovery plate 14 pushing the curtain ring 2 in the first direction D1 with the movement of the carriage 5 (step S1). FIG. 7A corresponds to step S1.
[0043]
The method of opening the curtain 1 with the collection plate 14 provided on the carriage 5 in the electric curtain opening / closing apparatus 20 of the present invention is more effective than the method of pulling the curtain ring 2 by the magnetic force of the solenoid 7 to open the curtain 1. This is preferable in that heat generation is suppressed and power consumption is further suppressed.
[0044]
When the sensor 13 detects the carriage 5, the motor 10 is stopped and the carriage 5 stops (step S2). FIG. 7B corresponds to step S2.
[0045]
When the sensor 13 detects the carriage 5, the count value of the encoder 12 is cleared to zero (Step S3).
[0046]
When the motor 10 rotates by the predetermined number of rotations, the carriage 5 moves in the second direction D2 and stops at the home position 19 (step S4). FIG. 7C corresponds to step S3.
[0047]
The home position 19 is set so that the solenoid 7 is located near the suction plate 8. It is preferable that the setting is made such that the carriage 5 is waiting at the home position 19, since the time from when a command to open the curtain 1 is issued to when the towing of the curtain 1 starts is shortened.
[0048]
An instruction to open the curtain is issued based on the opening / closing instruction input to the control unit 22 (step S5). The opening / closing command includes information on which curtain should be opened and to which position.
[0049]
The opening / closing command is input from the mobile phone 24 or a mobile terminal (not shown), and is sent to the communication unit 21 via the Internet 23. The communication unit sends the opening / closing command to the control unit 22. Alternatively, the opening / closing command is issued wirelessly or by wire from a dedicated controller (not shown).
[0050]
Of the plurality of solenoids 7, a current is applied to the solenoid 7 corresponding to the curtain 1 instructed to be opened in step S5, and the suction plate 8 at a position corresponding to the solenoid 7 to which the current is applied is magnetically applied to the solenoid 7. (Step S6). FIG. 7D corresponds to step S6.
[0051]
The motor 10 is driven, and the carriage 5 moves in the second direction D2. The curtain 1 instructed to open in step S5 is pulled by the carriage 5 and opened (step S7). FIG. 7E corresponds to step S7.
[0052]
When the position of the curtain 1 corresponding to the counter value detected by the encoder 12 reaches the set position input in step S5, the current flowing through the solenoid 7 corresponding to the curtain 1 is stopped, and the curtain ring 2 is moved. The curtain 1 is released from the solenoid 7 and stops at the set position (step S8). FIG. 7F corresponds to step S8.
[0053]
As a method of determining the position where the curtain ring 2 is released, a method of releasing the curtain ring 2 at a desired position by issuing a command in real time while visually checking the traction of the curtain 1 is possible.
[0054]
The motor 10 is stopped (Step S9). The stop position is determined by an output value of the encoder 12 or by a sensor (not shown) that outputs a detection signal when the carriage 5 installed on the side plate 3 reaches a predetermined position.
[0055]
According to the electric curtain opening and closing device 20, a desired curtain among the plurality of curtains 1 is opened and closed by the driving force of one motor 10.
[0056]
Furthermore, according to such an electric curtain opening and closing device 20, it is possible to pull a plurality of curtains 1 by one motor 10 at the same time and to individually stop at arbitrary positions.
[0057]
When the number of curtains in the electric curtain opening and closing device 20 increases, the number of shafts 4 and the number of solenoids 7 are increased to cope with the increase. The wire 9, the motor 10, the idle pulley 11, the encoder 12, and the sensor 13 No need to increase. Therefore, even if the number of curtains to be pulled increases, the manufacturing cost can be kept low. Further, even if the number of curtains to be pulled increases, the structure is simple, and the maintenance work is reduced.
[0058]
Further, in such an electric curtain opening and closing device 20, since the curtain ring 2 is attracted and pulled by magnetic force, when an abnormal force is applied to the curtain with a certain strength or more, the curtain ring 2 comes off the carriage 5 and the curtain 1 Is not transmitted to the drive mechanism including the motor 10. Therefore, according to the electric curtain opening / closing device 20 of the present invention, it is not necessary to provide a safety device such as a servo lock or a current control circuit in order to prevent a failure due to an abnormally strong force applied to the drive mechanism, and reliability is improved. A high electric curtain opening and closing device 20 is provided at a low manufacturing cost.
[0059]
Further, when an abnormal force is applied to the curtain with a certain strength or more, the curtain ring 2 is detached from the carriage 5, and when the curtain ring 1 is operated again, the curtain 1 is once fully opened by the collection plate 14 and the encoder 12 is reset. Can be opened. The electric curtain opening / closing device 20 causes a slip between the pulley (not shown) of the motor 10 and the wire 9 when an abnormal force is applied to the curtain 1, and a displacement of the curtain 1 from a predetermined position in a subsequent operation. Problem does not occur.
[0060]
Such an electric curtain opening / closing device 20 is installed such that the sliding roller guide 6a is oriented in the vertical direction, and the blind string is used instead of the curtain ring 2 so that the blind string can be automatically moved to an arbitrary height. It can be used for towing traction.
[0061]
In such an electric curtain opening / closing device 20, two side plates 3 from which the shaft 4 and the recovery plate 14 have been removed are arranged in parallel, and the two side plates 3 are arranged such that the sliding roller guide 6a faces vertically. And a wire drawn by the magnetic force of the solenoid 7 and pulled by the carriage 5 is stretched between the two side plates 3 and a curtain is hung on the wire. Is performed electrically. When the electric curtain opening / closing device 20 is used together with a fixing mechanism in which the wire is freely moved upward and fixed downward, the curtain is preferably stopped at a position where the power of the solenoid 7 is stopped.
[0062]
[Second embodiment]
FIG. 8 is a top view showing the electric curtain opening / closing device 20 according to the second embodiment. The electric curtain opening / closing device 20 according to the present embodiment does not include the encoder 12 as compared with the first embodiment. Compared to the first embodiment, the electric curtain opening / closing device 20 according to the present embodiment includes an open sensor 15 that detects that the carriage 5 is located at a position near the end of the side plate 3 in the first direction D1; Is provided at a position near the end of the side plate 3 in the second direction D2. Other configurations are the same as those of the first embodiment.
[0063]
The electric curtain opening / closing device 20 having such a configuration operates as follows.
[0064]
The electric curtain opening and closing device 20 according to the present embodiment performs the same operation as Steps S1 to S7 according to the first embodiment by replacing the sensor 13 according to the first embodiment with the open sensor 15 according to the present embodiment.
[0065]
When the carriage 5 continues to move in the second direction D2 following step S7, the closing sensor 16 detects the carriage 5 soon. The motor control unit stops the motor 10 in response to the detection signal output from the close sensor 16. Further, the curtain ring 2 is released from the solenoid 7 by stopping the current flowing through the solenoid 7.
[0066]
It is preferable that the stop of the current flowing through the solenoid 7 is automatically performed in response to a detection signal output from the close sensor 16.
[0067]
In such an electric curtain opening / closing device 20, since any one of a plurality of curtains is pulled out by one motor 10, electric opening / closing of the plurality of curtains is performed by an inexpensive device. Further, since no encoder is provided, the manufacturing cost can be reduced. Further, since there is only one drive system for a plurality of curtains, there is little possibility of failure and maintenance is easy.
[0068]
[Third Embodiment]
FIG. 9 is a top view of the electric curtain opening / closing device 120 according to the third embodiment. The electric curtain opening / closing device 120 according to the third embodiment includes a side plate 103 and a plurality of shafts 104.
[0069]
The electric curtain opening / closing device 120 according to the third embodiment includes two carriages 105. Each of the two carriages 105 has a sliding roller (not shown). The two carriages 105 are each independently provided with a shaft 104 by a sliding mechanism including a sliding roller (not shown) and a sliding roller guide (not shown). It is attached to the side plate 103 in such a manner that it can reciprocate linearly in a direction parallel to.
[0070]
The electric curtain opening / closing device 120 further includes two sets of drive mechanisms (not shown) including a motor, an idle pulley, a wire stretched therebetween, and an encoder for detecting the number of rotations of the motor. Each of the two drive mechanisms independently pulls each of the two carriages 105 by the same mechanism as in the first embodiment.
[0071]
Assuming that one of the side surfaces of the side plate 103 parallel to the shaft 104 is a front surface F, the carriage 105 on the right side when viewed from the front F has a collection plate 114 at the left end. The curtain ring 102 is attached to every other shaft on the right shaft of the collection plate 114.
[0072]
The carriage 105 on the left side when viewed from the front F has a collection plate 114 at the right end. The curtain ring 102 is attached to the shaft on the left side of the collection plate 114 at alternate positions with the shaft on the right side.
[0073]
The electric curtain opening / closing device 120 further includes a sensor 113 for detecting the stop position of the right carriage 105 near the right end of the side plate 103 and a sensor 113 for detecting the stop position of the left carriage 105 near the left end of the side plate 103. And
[0074]
The electric curtain opening / closing device 120 further includes a safety device (not shown) so that the two carriages 105 do not collide. The safety device controls a motor (not shown) so as to stop when the two carriages 105 approach a predetermined distance or more, using an output from an encoder (not shown), for example. Further, the safety device controls the motor so that, for example, when only the right carriage 105 pulls the curtain ring 102, the left carriage 105 moves to a home position (not shown) on the left.
[0075]
In the electric curtain opening / closing device 120 having such a configuration, each of the two carriages 105 and the curtain ring 102 pulled by the two carriages 105 are provided under the condition that the movement range is limited by the safety device. The same operation as the carriage 5 and the curtain ring 2 in one mode is performed.
[0076]
In the electric curtain opening / closing device 120, when the two carriages 105 simultaneously close the curtain 101 from the state where the curtain 101 is fully opened, the curtain 101 is closed in a short time. In such an electric curtain opening and closing device 120, when the two carriages 105 are in the center of the side plate 103 and the curtains are closed, and when the two carriages 105 simultaneously open the curtains 101, the curtains 101 It becomes fully open at. Such an electric curtain opening and closing device 120 is suitably used particularly for aligning a plurality of curtains having different colors and designs at the center.
[0077]
In such an electric curtain opening and closing device 120, for example, when four curtains are used, the space for holding the left and right wing curtains only needs to be able to store two curtains each, and the storage space for the curtains is divided into small spaces, and the installation space is small. I'm done.
[0078]
【The invention's effect】
According to the present invention, there is provided an electric curtain in which each of a plurality of curtains can be individually opened to a desired position.
[0079]
Further, according to the present invention, there is provided an electric curtain in which a plurality of curtains are automatically opened and closed, and the size of the control unit is small.
[0080]
Further, according to the present invention, there is provided an electric curtain in which a plurality of curtains are automatically opened and closed, and the manufacturing cost is low.
[0081]
Further, according to the present invention, there is provided an electric curtain that automatically opens and closes a plurality of curtains and consumes less power.
[0082]
Further, according to the present invention, there is provided an electric curtain in which operation is not disrupted when an abnormal force is applied to the curtain.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electric curtain opening / closing device.
FIG. 2 is a side view of the electric curtain opening / closing device.
FIG. 3 is a top view of the electric curtain opening / closing device.
FIG. 4 shows the connection between the electric curtain opening / closing device and the portable terminal.
FIG. 5 shows a configuration of a control unit.
FIG. 6 is a flowchart showing the operation of the electric curtain opening / closing device.
FIG. 7 is a diagram showing an operation of the electric curtain opening / closing device.
FIG. 8 is a top view of the electric curtain opening / closing device.
FIG. 9 is a top view of the electric curtain opening / closing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... curtain 2 ... curtain ring 3 ... side plate 4 ... shaft 5 ... carriage 6 ... sliding roller 6a ... sliding roller guide 7 ... solenoid 8 ... suction plate 9 ... wire 10 ... motor 11 ... idle pulley 12 ... encoder 13 ... Sensor 14 Recovery plate 15 Open sensor 16 Close sensor 17 Solenoid controller 18 Motor controller 19 Home position 20 Electric curtain opening / closing device 101 Curtain 102 Curtain ring 103 Side plate 104 Shaft 105 Carriage 107 ... solenoid 108 ... suction plate 113 ... sensor 114 ... collection plate 120 ... electric curtain opening and closing device

Claims (12)

A support for supporting the curtain,
Power transmission section,
A drive unit for driving the power transmission unit in response to an input opening / closing command;
A movable unit coupled to the power transmission unit and holding and moving the support unit in response to the opening / closing command, and releasing the support unit after the movement is completed. In claim 1,
The support unit includes a plurality of support members corresponding to each of a plurality of curtains,
The movable unit holds and moves the support unit in response to the opening / closing command, and individually releases each of the plurality of support members at a position determined by the opening / closing command.
Electric curtain opening and closing device. In claim 1 or 2,
The holding is performed by magnetic force,
Electric curtain opening and closing device. In any one of claims 1 to 3,
The movable section includes a solenoid,
The support includes a ferromagnetic material,
The holding is performed by attracting the ferromagnetic material by a magnetic force generated by flowing a current through the solenoid, and the releasing is performed by stopping the current.
Electric curtain opening and closing device. In any one of claims 1 to 4,
Further, a position detector for detecting the position of the movable part and outputting the position as position information,
The movable unit performs holding and release of the support unit in response to the opening and closing command using the position information,
Electric curtain opening and closing device. In claim 5,
The driving unit includes a motor,
The position detector is an encoder that detects the number of rotations of the motor and outputs the position information.
Electric curtain opening and closing device. In claim 5 or 6,
Further, a sensor is provided for detecting that the movable portion has reached the end of the movable range,
When the sensor detects the movable portion, the motor is stopped and the position detected by the position detector is reset.
Electric curtain opening and closing device. In any one of claims 1 to 7,
The movable portion includes a collecting portion that hooks and collects the support portion when moving in a predetermined one direction,
Electric curtain opening and closing device. In any one of claims 1 to 8,
Further, a communication unit connected to the communication network is provided,
The opening and closing command is received by the communication unit via the communication network,
Electric curtain opening and closing device. Causing the movable portion to hold a support portion that supports the curtain in response to the opening / closing command;
Moving the movable part in response to the opening and closing command;
Releasing the support unit from the movable unit after the movement is completed. Holding a plurality of support members individually supporting each of the plurality of curtains in the movable portion in response to an opening and closing command,
Moving the movable part;
Individually opening each of the plurality of support members at a position determined by the opening / closing command. In claim 10 or 11,
The holding is performed by a magnetic force of a solenoid, and the releasing is performed by stopping a current flowing through the solenoid.
Electric curtain opening and closing method.

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