Opening / closing body device and method for controlling the opening / closing body device

Abstract

To prevent malfunction due to erroneous detection by an operation switch with the usage of a non-contact type operation switch, and to improve safety by stopping opening / closing means during opening operation or closing operation in a short time.SOLUTION: An opening / closing body device includes opening / closing means provided at the peripheral edge of an opening, an opening / closing mechanism for electrically operating the opening / closing means, control means that drives the opening / closing driving mechanism to electrically control the operation of the opening / closing means, and an operation switch which has sensors for the opening, stopping, and closing operations of the opening / closing means, detects the fingers of an operator by the sensors in a non-contact manner, and outputs control signals for commanding the operations of the opening / closing means to the control means. When the fingers of the operator are detected in a non-contact manner only during an individually-determined detection period, each of the sensors of the operation switch outputs the detection signal, and the sensor for stop operation outputs the detection signal during a detection period shorter than a detection period of the sensor for open operation and a detection period of the sensor for close operation.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to an opening / closing body device and a control method for an opening / closing body device configured to separate openings of structural bodies including buildings such as houses, buildings, factories, warehouses, and garages using an opening / closing body such as a shutter, and in particular to an opening / closing body device and a control method for an opening / closing body device suitable for operating the opening / closing body using a non-contact operating switch. [Background technology]

[0002] An opening / closing body device such as a shutter curtain is installed at an opening such as an entrance or window of a structural body including a house, a building, a factory, a warehouse, a garage, or the like, or an internal passage or space, and the opening is opened or closed by moving the opening / closing body. This opening / closing body device is configured to unfold and lower an opening / closing body such as a slat curtain made of many rectangular slat materials, a pipe grill curtain made of many pipe materials connected with a link material, a panel curtain made of a single panel material or a panel material connected with many panels, a net curtain made of a net material, a sheet curtain made of a sheet material made of synthetic resin or cloth fiber, or a composite curtain made of a composite material of these materials, from the top of the opening and closing the entire opening. In such an opening / closing body device, the opening and closing operation of the opening / closing body is often performed electrically. Examples of electrically operated opening / closing body devices include an electric shutter device, an electric door device, and an electric awning device.

[0003] Generally, an electric opening / closing body device is configured so that an opening / closing body for raising and closing an opening / closing space of a structure such as a building is raised and lowered by an opening / closing machine (motor, etc.) installed in the ceiling of the structure or in a shutter case. Such an electric opening / closing body device is provided with a manual operation switch to operate the opening / closing body by instructing the control device that controls the opening / closing machine to operate the opening / closing body. The operation switch is provided with a rise (open) button, a stop (stop) button, and a fall (close) button as control switches corresponding to the opening, stopping, and closing operations of the opening / closing body, respectively. In recent years, due to considerations of hygiene, some opening / closing body devices have adopted non-contact operation switches as their operation switches. Patent Document 1 discloses an opening / closing device equipped with a non-contact switch as its operation switch. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-197119 A Summary of the Invention [Problem to be solved by the invention]

[0005] When a non-contact operating switch is used as the operating switch for the opening / closing body device, in order to prevent malfunction due to erroneous detection of each control switch, it is necessary to confirm that each control switch has detected the operator's finger non-contact for a predetermined period of time before starting each operation of the opening / closing body. Each non-contact control switch confirms that it has detected the operator's finger for a specified period of time before starting each operation of the opening / closing body.When a stopped opening / closing body is opened or closed, the response time is slower but there is no safety issue.However, when stopping an opening / closing body in the middle of an opening or closing operation, the operation of the opening / closing body cannot be stopped quickly, which may risk an accident in an emergency.

[0006] The present invention has been made in consideration of the above-mentioned points, and aims to improve safety by using a non-contact operating switch to prevent malfunction due to erroneous detection of the operating switch and by stopping the opening / closing means in a short period of time during opening or closing operation. [Means for solving the problem]

[0007] A first feature of the opening / closing body device of the present invention is that it comprises an opening / closing means provided on the peripheral portion of the opening, an opening / closing machine for electrically operating the opening / closing means, a control means for driving the opening / closing machine to electrically control the operation of the opening / closing means, and an operation switch having sensors for each of the opening, stopping and closing operations of the opening / closing means, which detects the operator's fingers non-contactly using each sensor and outputs each control signal to the control means for instructing each operation of the opening / closing means, and each sensor of the operation switch outputs a detection signal when it detects the operator's fingers non-contactly for each individually determined detection period, the sensor for the stop operation outputs a detection signal for a detection period shorter than the detection period of the sensor for the opening operation and the detection period of the sensor for the closing operation, and the operation switch outputs each control signal in response to each detection signal of each sensor.

[0008] Since the detection period of the sensor for the opening operation and the sensor for the closing operation are longer than that of the sensor for the stopping operation, malfunction due to erroneous detection by the sensor for the opening operation and the sensor for the closing operation is prevented. Furthermore, the sensor for the stopping operation, which has a detection period shorter than that of the sensor for the opening operation and the sensor for the closing operation, stops the opening / closing means in a short time during the opening operation or the closing operation, improving safety.

[0009] The opening / closing means is composed of an opening / closing member such as a shutter curtain that electrically opens and closes an opening such as an entrance or window, or an internal passage or space in a structure such as a building, such as a house, a building, a factory, a warehouse, or a garage. When the opening / closing means is a shutter curtain, it is stored in the upper part, which is one of the peripheral parts of the opening of a building, etc., and the shutter curtain passes through a lintel or the like and descends, electrically opening and closing the opening. In addition, the opening / closing means may be stored in the lower part of the opening and electrically open and close by an upward movement, or the opening / closing means may be stored in the side and electrically move by a sliding movement. The opening / closing means may include those that can fully close the opening by closing and those that cannot.

[0010] A second feature of the opening / closing body device of the present invention is that it comprises an opening / closing means provided on the peripheral portion of the opening, an opening / closing machine for electrically operating the opening / closing means, a control means for driving the opening / closing machine to electrically control the operation of the opening / closing means, and an operation switch having sensors for each of the opening, stopping and closing operations of the opening / closing means, which detects the operator's fingers non-contactly using each sensor and outputs each control signal to the control means for instructing each operation of the opening / closing means, and when each sensor of the operation switch detects the operator's fingers non-contactly for each individually determined detection period, it outputs a detection signal, and during the opening, stopping or closing operation of the opening / closing means, the operation switch makes each detection period of each sensor shorter than when the opening / closing means is stopped, and outputs each control signal in accordance with each detection signal of each sensor.

[0011] In addition, "during an opening operation" refers to the state in which the opening / closing means is moving in the direction to open the opening, and "during a closing operation" refers to the state in which the opening / closing means is moving in the direction to close the opening. Further, the term "during the stopping operation" refers to the period from when the opening / closing means starts to stop by the opening / closing machine until the opening / closing means stops completely.

[0012] When the opening / closing body is stopped, the detection period of each sensor is longer than when the opening / closing body is in an opening operation, a stopping operation, or a closing operation, so that malfunction due to erroneous detection of each sensor is prevented. During the opening or closing operation of the opening / closing body, the opening / closing body in the opening or closing operation is stopped in a short time by the stopping operation sensor, whose detection period is shorter than when the opening / closing body is stopped, thereby improving safety.

[0013] A third feature of the opening / closing body device of the present invention is that, in the opening / closing body device described in the second feature, the operating switch enables only the detection operation of the sensor for the stopping operation during the opening operation, stopping operation, or closing operation of the opening / closing means, and disables the detection operation of the sensor for the opening operation and the detection operation of the sensor for the closing operation.

[0014] The operating switch enables only the detection operation of the sensor for the stopping operation and disables the detection operation of the sensor for the opening operation and the detection operation of the sensor for the closing operation during the opening operation, stopping operation, or closing operation of the opening / closing means, thereby preventing erroneous detection by the sensors for the opening operation and the closing operation, further improving safety. In addition, during the opening, stopping, or closing operation of the opening / closing means, the only sensor for which detection is effective is the sensor for the stopping operation, so the operator does not need to worry about erroneous detection by the sensor for the opening operation and the sensor for the closing operation, improving the operability of the operating switch.

[0015] A fourth feature of the opening / closing body device of the present invention is that, in the opening / closing body device described in the third feature, the operating switch has a display means corresponding to each sensor, which indicates that the detection operation of each sensor is valid, and only the display means corresponding to the sensor whose detection operation is valid is displayed. An operator of the opening / closing body device can confirm the sensors whose detection operation is valid based on the display state of the display means.

[0016] A first feature of the control method for an opening / closing body device of the present invention is a control method for an opening / closing body device comprising an opening / closing means provided on the peripheral portion of an opening, an opening / closing machine for electrically operating the opening / closing means, a control means for driving the opening / closing machine to electrically control the operation of the opening / closing means, and an operation switch having sensors for each of the opening, stopping and closing operations of the opening / closing means, which detects the operator's fingers non-contactly using each sensor and outputs each control signal to the control means for instructing each operation of the opening / closing means, wherein when each sensor of the operation switch detects the operator's fingers non-contactly for each individually determined detection period, it outputs a detection signal, the sensor for the stop operation outputs a detection signal for a detection period shorter than the detection period of the sensor for the opening operation and the detection period of the sensor for the closing operation, and the operation switch outputs each control signal in response to each detection signal of each sensor. This is a control method for an opening / closing body device, which corresponds to the opening / closing body device described in the first aspect.

[0017] A second feature of the control method for an opening / closing body device of the present invention is a control method for an opening / closing body device comprising an opening / closing means provided on the peripheral portion of an opening, an opening / closing machine for electrically operating the opening / closing means, a control means for driving the opening / closing machine to electrically control the operation of the opening / closing means, and an operation switch having sensors for each of the opening, stopping, and closing operations of the opening / closing means, which detects the operator's fingers non-contactly using each sensor and outputs each control signal to the control means for instructing each operation of the opening / closing means, wherein when each sensor of the operation switch detects the operator's fingers non-contactly for each individually determined detection period, a detection signal is output, and during the opening operation, stopping operation, or closing operation of the opening / closing means, the operation switch shortens each detection period of each sensor to be shorter than when the opening / closing means is stopped, and each control signal is output in response to each detection signal of each sensor. This is a control method for an opening / closing body device, which corresponds to the opening / closing body device described in the second aspect.

[0018] A third feature of the control method for an opening / closing body device of the present invention is that, in the control method for an opening / closing body device described in the second feature, during the opening operation, stopping operation, or closing operation of the opening / closing means, an operating switch is used to enable only the detection operation of the sensor for the stopping operation, and disable the detection operation of the sensor for the opening operation and the detection operation of the sensor for the closing operation. This is a control method for an opening / closing body device, which corresponds to the opening / closing body device described in the third aspect.

[0019] A fourth feature of the control method for an opening / closing body device of the present invention is that, in the control method for an opening / closing body device described in the third feature, the operation switch is provided with a display means indicating that the detection operation of each sensor is valid, corresponding to each sensor, and the operation switch displays only the display means corresponding to the sensor whose detection operation is valid. This is a control method for an opening / closing body device, which corresponds to the opening / closing body device described in the fourth aspect. Effect of the Invention

[0020] According to the present invention, a non-contact operating switch is used, which prevents malfunction due to erroneous detection of the operating switch, and the opening / closing means during the opening or closing operation can be stopped in a short period of time, thereby improving safety. [Brief description of the drawings]

[0021] [Figure 1] 1 is a diagram showing a schematic configuration of a shutter device which is an opening / closing body device according to an embodiment of the present invention; [Diagram 2] 2 is a diagram illustrating the operation of each device in the shutter device shown in FIG. 1. [Diagram 3] FIG. 2 is a diagram showing a circuit configuration of a control device for a shutter device according to an embodiment of the present invention. [Figure 4] 4(a) and 4(b) are external views of an example of an operation switch. [Diagram 5] 10 is a flowchart showing a control operation of a shutter curtain according to another embodiment of the present invention. [Figure 6] 13 is a flowchart showing a control operation of a shutter curtain according to still another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] A preferred embodiment of an opening / closing body device according to the present invention will be described below with reference to the attached drawings. In this embodiment, a shutter device equipped with a shutter curtain that opens and closes vertically will be described as an opening / closing means. Fig. 1 is a diagram showing the schematic configuration of a shutter device, which is an opening / closing body device according to one embodiment of the present invention. In Fig. 1, the opening / closing body device 10 is a shutter device that opens and closes an opening of an entrance vertically.

[0023] The opening / closing device 10 is installed at an opening of a building, and basically comprises a shutter case 11, a shutter curtain 12, guide rails 13, 14, a winding shaft 15, a chain 16, a motor 17, a position detection device 172, a control device 18, an obstacle detection device 185, an operating switch 19, a power supply device 20, a speed detection device 30, and a safety device 40.

[0024] Normally, this opening / closing body device 10 drives a motor 17, which is an opening / closing machine, to control opening and closing in response to the operation of an operating switch 19. Furthermore, in this opening / closing body device 10, the open state in which the shutter curtain 12 is wound up on the winding shaft 15 is maintained by a mechanical holding mechanism (not shown), and when an emergency signal BS indicating the occurrence of a fire or the like is input from the outside to the control device 18 in this open state, the holding mechanism is released from the open state, and the shutter curtain 12 naturally descends under its own weight to automatically close the opening.

[0025] The guide rails 13, 14 are provided on both ends of the opening of the building so as to contact both ends of the shutter curtain 12, and are made of a metal member or an equivalent member having a guide groove with a U-shaped cross section that spans from the lintel to the floor. The shutter curtain 12 rises and falls along the guide grooves of the guide rails 13, 14 to open and close the opening.

[0026] The winding shaft 15 is rotatably provided on both ends of the shutter case 11, and winds and unwinds the shutter curtain 12. A chain 16 connects a driving sprocket provided on the rotating shaft of the motor 17 to a driven sprocket provided on the rotating shaft of the winding shaft 15. Therefore, the rotational driving force of the motor 17 is transmitted to the winding shaft 15 side via the chain 16, and when the motor 17 rotates, the winding shaft 15 rotates via the chain 16, thereby controlling the opening and closing operation of the shutter curtain 12.

[0027] In this embodiment, a DC motor is used as the motor 17. The motor 17 is provided with a position detector 172 (see FIG. 2) for detecting the rotational position, i.e., the open / closed position and open / closed state of the shutter curtain 12. This position detector 172 is composed of a pulse generating rotary encoder or the like. A pulse signal corresponding to the rotation of the motor 17 is output to the control device 18, so that the control device 18 calculates the rotational position of the motor 17 and the position of the tip of the shutter curtain 12 on the closing side at the opening based on the generation status of this pulse.

[0028] In addition, a brake (not shown) is attached to the motor 17, and the motor 17 releases the brake (not shown) to start the opening or closing operation of the shutter curtain 12 that has been stopped, and also activates the brake (not shown) to start stopping the shutter curtain 12 that has been in the opening or closing operation.

[0029] The control device 18 is configured as a microcomputer, and is supplied with power from the power line AC of the commercial power supply via a power supply device 20. The control device 18 controls the rotation of the motor 17 based on a control signal corresponding to the operating state of the operation switch 19, a detection signal from an obstacle detection device 185, an operation signal from the safety device 40, and a signal from a position detection device 172 provided on the motor 17, and releases the holding mechanism based on an emergency signal BS.

[0030] The operation switch 19 is a non-contact switch that detects the operator's finger without contact and outputs each control signal to the control device 18 to instruct each operation of opening, stopping, and closing the shutter curtain 12. Although not shown in Fig. 1, the control device 18 may also be operable by a wireless remote control device. The operation switch 19 will be described in detail later with reference to FIG.

[0031] The emergency signal BS is a signal of voltage 24 [V] supplied from an external control room in the event of an emergency such as a fire, and is input to a harm prevention interlocking relay (not shown) in the control device 18. In addition to or instead of the input of the emergency signal BS from the outside, a temperature sensor or the like may be provided inside the shutter case 11 near the opening of the lintel, i.e., the part where the shutter curtain 12 rises and falls. This temperature sensor may be composed of a high-temperature bimetal thermostat with an automatic reset type B contact whose contact is always in the on state and opens and turns off when the contact reaches a predetermined temperature (any temperature in the range of 100 to 300 degrees Celsius), and when the contact is open, a signal indicating that a fire has occurred may be output as a signal equivalent to the emergency signal BS.

[0032] The obstacle detection device 185 has a transmitter mounted on the lower end (seat plate) of the shutter curtain 12. When an obstacle is detected, it transmits a detection signal corresponding to the movement of the built-in seat plate switch to the control device 18, and is configured to transmit a return signal when the seat plate switch returns to its original position after the obstacle is removed. The transmission of signals from the transmitter of the obstacle detection device 185 to the control device 18 is not limited to a wired system as shown in the figure, but may be a wireless system that operates using a battery as a power source. In addition, a seat plate switch that moves when an obstacle comes into contact with the lower end of the shutter curtain 12 may be provided, and the force of the seat plate moving when it comes into contact with an obstacle may be used to press a tape switch provided along the height direction of the guide rails 13, 14, or a detection signal may be output by wire from the tape switch to the control device 18. In addition, a light emitting / receiving sensor such as a photocell or an LED may be provided at the opening, and obstacles may be detected in a non-contact manner by image recognition or the like.

[0033] The power supply device 20 receives AC power from a power line AC of a commercial power source, converts the AC power into DC power, and supplies the DC power to the control device 18. In this embodiment, the power supply device 20 is installed outside the shutter case 11, but the power supply device 20 may be installed inside the shutter case 11.

[0034] The safety device 40 is a contact-type mechanical detection device that is usually installed inside the shutter case 11. It activates when it detects over-rolling of the shutter curtain 12 or sagging due to over-extension of the shutter curtain 12, and outputs an activation signal to the control device 18. When the control device 18 receives an activation signal from the safety device 40, it stops the operation (raising or lowering) of the shutter curtain 12. Therefore, the safety device 40 also plays a role in preventing the shutter curtain 12 from falling. The safety device 40 may be an optical non-contact detection device.

[0035] Fig. 2 is a diagram for explaining the operation of each device in the shutter device shown in Fig. 1. The control device 18 controls the motor 17 using power supplied from the power supply device 20, based on signals from the operation switch 19, the obstacle sensor 185, the safety device 40, and the position detector 172, as well as the emergency signal BS. In FIG. 2, the connection relationship of the commercial power source to components other than the control device 18 is omitted.

[0036] 3 is a diagram showing a circuit configuration of a control device for a shutter device according to an embodiment of the present invention. The control device 18 of this embodiment includes a motor drive circuit 18a, a CPU 18b, and the like. The motor drive circuit 18a is composed of an IPM (Intelligent Power Module: high-performance power semiconductor element) driver, etc., and under the control of the CPU 18b, outputs DC power supplied from the power supply device 20 to the control device 18 to the motor 17 to drive the motor 17.

[0037] The CPU 18b controls the driving of the motor 17 by the motor driving circuit 18a. At that time, the CPU 18b varies the voltage of the DC power applied from the motor driving circuit 18a to the motor 17 to control the rotation speed of the motor 17, thereby changing the operation speed of the shutter curtain 12.

[0038] In this embodiment, the operating speed of the shutter curtain 12 is set to different speeds when it is opened and when it is closed. The speed detection device 30 attached to the motor 17 detects the rotational speed of the motor 17, and thereby detects whether the shutter curtain 12 driven by the motor 17 is in the opening operation, the stopping operation, or the closing operation, and outputs the detection result to the operation switch 19.

[0039] In addition, "during the opening operation" refers to the state in which the shutter curtain 12 is moving (rising) in the direction to open the opening, and "during the closing operation" refers to the state in which the shutter curtain 12 is moving (descending) in the direction to close the opening. In addition, the stopping operation refers to the period from when a brake (not shown) attached to the motor 17 is activated to start stopping the shutter curtain 12, which was in the opening or closing operation, until the shutter curtain 12 comes to a complete stop.

[0040] Fig. 4(a) and Fig. 4(b) are external views of an example of an operation switch. In Fig. 4(a) and Fig. 4(b), an opening operation sensor 19A, a stopping operation sensor 19B, and a closing operation sensor 19C, which are shown by dashed lines, are provided inside the operation switch 19 in correspondence with the opening (raising), stopping, and closing (lowering) operations of the shutter curtain 12. An LCD display 19D is attached to the surface of the operation switch 19, and as shown in FIG. 4(a), the LCD display 19D displays sensor position indicators 19AD, 19BD, and 19CD which indicate the positions of each sensor 19A, 19B, and 19C inside the operation switch 19, respectively, corresponding to each sensor 19A, 19B, and 19C.

[0041] Each of sensors 19A, 19B, 19C is composed of a near-infrared reflection type sensor that irradiates near-infrared rays at a specified limited distance and detects the reflected light, a capacitance sensor that detects changes in capacitance, or an electric field sensor that detects changes in the formed electric field, and detects the presence of an operator's finger in a non-contact manner and outputs a detection signal.

[0042] The operation switch 19 outputs each control signal for instructing each operation of opening, stopping, and closing the shutter curtain 12 to the control device 18 in response to each detection signal of the sensors 19A, 19B, and 19C. Based on each control signal input from the operation switch 19, the CPU 18b of the control device 18 executes each operation of the shutter curtain 12 according to each control signal.

[0043] At this time, each of the sensors 19A, 19B, and 19C outputs a detection signal when it detects the operator's finger without contact for an individually determined detection period. In one embodiment of the present invention, the detection period of the stopping operation sensor 19B is set shorter than the detection period of the opening operation sensor 19A and the detection period of the closing operation sensor 19C. For example, the detection period of the opening operation sensor 19A and the detection period of the closing operation sensor 19C are each 1 second, while the detection period of the stopping operation sensor 19B is 0.1 seconds.

[0044] Since the detection period of the opening operation sensor 19A and the closing operation sensor 19C is longer than that of the stopping operation sensor 19B, malfunction due to erroneous detection of the opening operation sensor 19A and the closing operation sensor 19C is prevented. In addition, the stopping operation sensor 19B, which has a shorter detection period than the opening operation sensor 19A and the closing operation sensor 19C, stops the shutter curtain 12 during the opening operation or closing operation in a short time, improving safety.

[0045] Alternatively, in another embodiment of the present invention, the operating switch 19 makes the detection period of each sensor 19A, 19B, 19C shorter when the shutter curtain 12 is opening, stopping, or closing than when the shutter curtain 12 is stopped. FIG. 5 is a flow chart showing a control operation of the shutter curtain 12 according to another embodiment of the present invention.

[0046] First, the speed detection device 30 detects the rotation speed of the motor 17 to detect whether the shutter curtain 12 is in an opening operation, a stopping operation, or a closing operation, and outputs the detection result to the operation switch 19 (step 501). When the shutter curtain 12 is not in the opening operation, the stopping operation, or the closing operation, that is, when the shutter curtain 12 is stopped, the process proceeds to step 503 .

[0047] When the shutter curtain 12 is in the opening operation, the stopping operation, or the closing operation, the operation switch 19 makes the detection period of each sensor 19A, 19B, 19C shorter than the detection period when the shutter curtain 12 is stopped (step 502).

[0048] In addition, regardless of the detection result of the speed detection device 30, the operation switch 19 may determine that the shutter curtain 12 is in the opening or closing operation when it is within a respective specified period corresponding to the opening or closing operation after outputting each control signal to instruct the opening or closing operation of the shutter curtain 12. In addition, regardless of the detection result of the speed detection device 30, the operating switch 19 may determine that the shutter curtain 12 is in the stopping operation when it is within each specified period required for the stopping operation of the shutter curtain 12 that was in the opening operation or closing operation after outputting a control signal to instruct the stopping operation of the shutter curtain 12. In these cases, the operation switch 19 does not need to input the detection result of the speed detection device 30.

[0049] Then, the operation switch 19 detects that a detection signal has been output from any one of the sensors 19A, 19B, 19C (step 503), and outputs a control signal corresponding to the detection signal to the control device 18 (step 504). If the respective detection signals are not output from the respective sensors 19A, 19B, 19C, the operations of steps 501 to 503 are repeated until a detection signal is output from any one of the sensors 19A, 19B, 19C.

[0050] The CPU 18b of the control device 18 judges whether or not the control signal input from the operation switch 19 is for a stopping operation (step 505). If the control signal is for a stop operation, the CPU 18b executes a stop operation of the shutter curtain 12 (step 506) and returns to the start of the flow.

[0051] If the control signal is not for a stop operation in step 505, the CPU 18b determines whether the control signal is for an opening operation (step 507). If the control signal is for the opening operation, the CPU 18b executes the opening operation of the shutter curtain 12 (step 508) and returns to the beginning of the flow.

[0052] If the control signal is not for an opening operation in step 507, the CPU 18b determines whether the control signal is for a closing operation (step 509). If the control signal is for the closing operation, the CPU 18b executes the closing operation of the shutter curtain 12 (step 510) and returns to the beginning of the flow. If the control signal is not for a close operation, the flow returns to the beginning.

[0053] In addition, since it is determined in step 505 whether the control signal is for a stop operation, and in step 507 whether the control signal is for an opening operation, if the control signal is not for an opening operation in step 507, it is determined that the control signal is for a closing operation. Therefore, the operation of step 509 may be omitted.

[0054] 5, when the shutter curtain 12 is stopped, the detection period of each of the sensors 19A, 19B, 19C is longer than during the opening operation, stopping operation, or closing operation of the shutter curtain 12, thereby preventing malfunction due to erroneous detection by each of the sensors 19A, 19B, 19C. Furthermore, during the opening operation or closing operation of the shutter curtain 12, the shutter curtain 12 during the opening operation or closing operation is stopped in a short time by the stopping operation sensor 19B, whose detection period is shorter than when the shutter curtain 12 is stopped, thereby improving safety.

[0055] In yet another embodiment of the present invention, during the opening operation, stopping operation, or closing operation of the shutter curtain 12, the operating switch 19 enables only the detection operation of the stopping operation sensor 19B, and disables the detection operation of the opening operation sensor 19A and the detection operation of the closing operation sensor 19C. For example, during the opening operation, stopping operation, or closing operation of the shutter curtain 12, when the stopping operation sensor 19B outputs a detection signal, the operating switch 19 outputs a control signal for the stopping operation to the control device 18, but does not output a control signal for the opening operation or closing operation to the control device 18 even if the opening operation sensor 19A or the closing operation sensor 19C outputs a detection signal. Alternatively, during the opening, stopping, or closing operation of the shutter curtain 12, the operating switch 19 continues to supply power to the stopping operation sensor 19B while temporarily interrupting the supply of power to the opening operation sensor 19A and the closing operation sensor 19C.

[0056] FIG. 6 is a flowchart showing a control operation of a shutter curtain according to still another embodiment of the present invention. First, the speed detection device 30 detects the rotation speed of the motor 17 to detect whether the shutter curtain 12 is in an opening operation, a stopping operation, or a closing operation, and outputs the detection result to the operation switch 19 (step 601). When the shutter curtain 12 is not in the opening operation, the stopping operation, or the closing operation, that is, when the shutter curtain 12 is stopped, the process proceeds to step 603 .

[0057] When the shutter curtain 12 is in the opening operation, the stopping operation, or the closing operation, the operation switch 19 enables only the detection operation of the stopping operation sensor 19B, and disables the detection operation of the opening operation sensor 19A and the detection operation of the closing operation sensor 19C (step 602A). Then, the operation switch 19 sets the detection period of the stopping operation sensor 19B to be shorter than the detection period when the shutter curtain 12 is stopped (step 602B). The operations in the following steps 603 to 610 are similar to those in steps 503 to 510 in FIG.

[0058] According to the embodiment shown in FIG. 6, during the opening, stopping, or closing operation of the shutter curtain 12, the CPU 18b enables only the detection operation of the stopping operation sensor 19B and disables the detection operation of the opening operation sensor 19A and the closing operation sensor 19C, thereby preventing erroneous detection by the opening operation sensor 19A and the closing operation sensor 19C, further improving safety. In addition, during the opening, stopping, or closing operation of the shutter curtain 12, the only sensor for which detection operation is effective is the stopping operation sensor 19B, so the operator does not need to worry about erroneous detection by the opening operation sensor 19A and the closing operation sensor 19C, improving the operability of the operating switch 19.

[0059] In the example shown in FIG. 4(a), sensor position indicators 19AD, 19BD, and 19CD indicating the positions of the sensors 19A, 19B, and 19C inside the operation switch 19 also serve to indicate that the detection operations of the sensors 19A, 19B, and 19C are valid. As shown in Figure 4(b), while the shutter curtain 12 is opening, stopping, or closing, the liquid crystal display 19D only displays the sensor position display 19BD of the stopping operation sensor 19B whose detection operation is currently active, and does not display the sensor position display 19AD of the opening operation sensor 19A and the sensor position display 19CD of the closing operation sensor 19C whose detection operation is currently inactive.

[0060] In the example shown in Figure 4(b), the operating switch 19 has sensor position indicators 19AD, 19BD, 19CD corresponding to each sensor 19A, 19B, 19C, which also serve to indicate that the detection operation of each sensor 19A, 19B, 19C is valid, and only the indication corresponding to the sensor whose detection operation is valid is displayed on the liquid crystal display 19D, so that the operator of the opening / closing body device can confirm the sensor whose detection operation is valid based on the presence or absence of the indication.

[0061] In addition, without being limited to the examples of Figures 4(a) and 4(b), an indication indicating that the detection operation of each sensor is valid may be provided separately from the sensor position indication showing the position of each sensor inside the operation switch. In this case, the indication that the detection operation of each sensor is valid may be provided by an indicator such as an LED light.

[0062] In the embodiment described above, a DC motor is used as motor 17, and the operating speed of the shutter curtain 12 is changed by varying the voltage applied to motor 17. However, it is also possible to use an AC motor as motor 17, and change the operating speed of the shutter curtain 12 by varying the frequency of the AC power applied to motor 17 using an inverter device or the like.

[0063] The opening / closing body device of the present invention can be applied to, for example, shutter devices, window shutter devices, blind devices, roller screen devices, curtain devices, movable partition devices, sliding door devices, swing door devices, folding door devices, gate devices, awning devices, waterproof board devices, etc. [Explanation of symbols]

[0064] 10...Opening and closing device 11...Shutter case 12...Shutter curtain 13,14…Guide rail 15…Winding shaft 16…Chain 17…Motor 172... Position detection device 18...Control device 18a...Motor drive circuit 18b…CPU 185...Obstacle detection device 19...Operation switch 19A…Opening operation sensor 19B…Stopping sensor 19C…Closing operation sensor 19D…LCD display 19AD, 19BD, 19CD...Sensor position indication 20...Power supply device 30...Speed ​​detection device 40…Safety device

Claims

1. An opening / closing means provided on the periphery of the opening; An opening / closing device for electrically operating the opening / closing means; A control means for driving the opening / closing device to electrically control the operation of the opening / closing means; an operation switch having sensors therein for opening, stopping and closing the opening / closing means, and having sensor position indications on its surface for indicating the position of each of the sensors and whether each of the detection operations of each of the sensors is valid, the operation switch detecting the fingers of an operator in a non-contact manner by each of the sensors, and outputting each control signal for instructing each of the operations of the opening / closing means to the control means, Each of the sensors of the operation switch outputs a detection signal when it detects an operator's finger in a non-contact manner for each individually determined detection period; The sensor for the stopping operation outputs the detection signal in a detection period shorter than a detection period of the sensor for the opening operation and a detection period of the sensor for the closing operation, The opening / closing body device, wherein the operation switch outputs the control signals in response to the detection signals of the sensors.

2. An opening / closing means provided on the periphery of the opening; An opening / closing device for electrically operating the opening / closing means; A control means for driving the opening / closing device to electrically control the operation of the opening / closing means; an operation switch having sensors for opening, stopping and closing the opening / closing means, detecting the presence of an operator's finger in a non-contact manner by the sensors, and outputting control signals to the control means for instructing the operations of the opening / closing means; Each of the sensors of the operation switch outputs a detection signal when it detects an operator's finger in a non-contact manner for each individually determined detection period; The opening / closing body device is characterized in that the operating switch makes the detection period of each of the sensors shorter than when the opening / closing means is stopped during the opening operation, stopping operation, or closing operation of the opening / closing means, and outputs each of the control signals in response to each detection signal of each of the sensors.

3. In the opening / closing body device described in claim 2, the operating switch enables only the detection operation of the sensor for the stopping operation during the opening operation, stopping operation, or closing operation of the opening / closing means, and disables the detection operation of the sensor for the opening operation and the detection operation of the sensor for the closing operation.

4. In the opening / closing body device described in claim 3, the operating switch has a display means corresponding to each sensor, which indicates that the detection operation of each sensor is valid, and the opening / closing body device is characterized in that only the display means corresponding to the sensor whose detection operation is valid is displayed.

5. An opening / closing means provided on the periphery of the opening; An opening / closing device for electrically operating the opening / closing means; A control means for driving the opening / closing device to electrically control the operation of the opening / closing means; A method for controlling an opening / closing body device, comprising: an operation switch having sensors for opening, stopping, and closing the opening / closing means, detecting an operator's finger without contact with the sensors, and outputting control signals to the control means for instructing the operations of the opening / closing means, each of the sensors is provided inside the operation switch, and a sensor position indicator is provided on a surface of the operation switch to indicate the position of each of the sensors and whether each of the detection operations of each of the sensors is valid; When the sensors of the operation switch detect the operator's finger in a non-contact manner for a detection period that is individually determined, a detection signal is outputted, The detection signal is output by the sensor for the stop operation in a detection period shorter than a detection period of the sensor for the opening operation and a detection period of the sensor for the closing operation; A method for controlling an opening / closing body device, comprising the steps of: outputting the control signals by the operation switch in response to the detection signals of the sensors.

6. An opening / closing means provided on the periphery of the opening; An opening / closing device for electrically operating the opening / closing means; A control means for driving the opening / closing device to electrically control the operation of the opening / closing means; A method for controlling an opening / closing body device, comprising: an operation switch having sensors for opening, stopping, and closing the opening / closing means, detecting an operator's finger without contact with the sensors, and outputting control signals to the control means for instructing the operations of the opening / closing means, When the sensors of the operation switch detect the operator's finger in a non-contact manner for a detection period that is individually determined, a detection signal is outputted, A method for controlling an opening / closing device, characterized in that, during the opening, stopping, or closing operation of the opening / closing means, the detection period of each of the sensors is made shorter by the operating switch than when the opening / closing means is stopped, and each of the control signals is output in response to each detection signal of each of the sensors.

7. 7. The control method for an opening / closing body device as described in claim 6, characterized in that, during the opening operation, stopping operation, or closing operation of the opening / closing means, the operation switch enables only the detection operation of the sensor for the stopping operation, and disables the detection operation of the sensor for the opening operation and the detection operation of the sensor for the closing operation.

8. In the method for controlling an opening / closing body device according to claim 7, the operation switch is provided with display means for indicating that the detection operation of each of the sensors is valid, and the display means corresponds to each of the sensors, A method for controlling an opening / closing body device, comprising the steps of: displaying only the display means corresponding to the sensor for which a detection operation is valid, by the operation switch;

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