JP5050580B2 - Shutter device - Google Patents

Description

  The present invention relates to a shutter device in which a shutter is closed by a drive unit in a closing direction.

2. Description of the Related Art Conventionally, there has been disclosed a shutter device having a drive unit that operates the shutter in the closing direction, a landing position detection unit that detects the landing of the shutter, and a rotation amount detection unit that detects the rotation amount of the drive unit (Patent Document). 1). According to this, the landing position detection means and the rotation amount detection means are provided. When the shutter operates in the closing direction and reaches the landing position, the landing position detection means detects this. The control unit determines that the shutter has hit an obstacle when the rotation amount detection means has reached a rotation amount corresponding to the landing position of the shutter while the landing position detection means does not detect the shutter landing position, and stops the shutter. Let
JP 2004-300916 A

  By the way, according to the above-described technique, when the shutter operates in the closing direction, the actual shutter position actually detected by the position sensor and the operating position of the shutter recognized by the rotation amount detection unit are always correspondingly the same. It is assumed that. However, there is a possibility that a deviation occurs between the two due to the influence of secular change, temperature change, change in winding diameter when the shutter is wound around the winder, wind acting on the shutter, and the like. In such a case, the shutter closing operation may stop before the position sensor detects that the shutter closing in the closing direction has reached the lower limit position. In such a case, a good closed state in the shutter device cannot be obtained, which is not preferable. Furthermore, the position sensor may break down due to unexpected circumstances.

  The present invention has been made in view of the above circumstances, and provides a shutter device that is advantageous for obtaining a favorable closed state of the shutter even when the position of the shutter is not detected at the detection position of the position sensor. This is the issue.

The shutter device according to the first aspect is a shutter device for closing the shutter from the fully open position to the fully closed position of the shutter,
(I) a drive unit for closing the shutter from the fully open position to the fully closed position of the shutter;
(Ii) a position sensor having a detection position for detecting the position of the shutter that is provided between the fully open position and the fully closed position of the shutter and that is closed.
(Iii) To store the first control amount required to close the shutter from the detection position of the position sensor to the fully closed position, and to close the shutter from the fully open position to the detection position of the position sensor A storage unit for storing a total control amount obtained by adding a preliminary control amount to the required second control amount;
(Iv) first control means for controlling the drive unit based on the first control amount to stop the shutter at the fully closed position in a normal state in which the position of the shutter to be closed is detected at the detection position of the position sensor; ,
(V) second control means for controlling the drive unit based on the total control amount to stop the shutter at the fully closed position in an emergency state where the position of the shutter to be closed is not detected at the detection position of the position sensor. It is characterized by that.

According to the shutter device according to the first aspect, the first control unit has priority over the second control unit in the normal state in which the position of the shutter to be closed is detected at the detection position of the position sensor. The drive unit is controlled based on the amount to stop the shutter at the fully closed position . On the other hand, there is an emergency state in which the position of the shutter that is closed is not detected at the detection position of the position sensor. In this case, the second control unit has priority over the first control unit, and controls the drive unit based on the total control amount to stop the shutter at the fully closed position . Thus, even when it is not detected at the detection position of the position sensor, it is possible to control the shutter that closes and to stop the shutter at the fully closed position . Here, the fully closed position means a state in which the shutter is closed. The fully open position means a state where the shutter is opened.

The shutter device according to the second aspect is a shutter device that closes the shutter from the fully open position to the fully closed position of the shutter,
(I) a drive unit for closing the shutter from the fully open position to the fully closed position of the shutter;
(Ii) a position sensor having a detection position for detecting the position of the shutter that is provided between the fully open position and the fully closed position of the shutter and that is closed.
(Iii) storing the first control amount required for closing the shutter from the detection position of the position sensor to the fully closed position, and required for closing the shutter from the fully open position to the fully closed position; A storage unit for storing the total control amount to be performed;
(Iv) first control means for controlling the drive unit based on the first control amount to stop the shutter at the fully closed position in a normal state in which the position of the shutter to be closed is detected at the detection position of the position sensor; ,
(V) second control means for controlling the drive unit based on the total control amount to stop the shutter at the fully closed position in an emergency state where the position of the shutter to be closed is not detected at the detection position of the position sensor. It is characterized by that.

According to the shutter device according to the second aspect, in the normal state in which the position of the shutter that is closed is detected at the detection position of the position sensor, the first control means has priority over the second control means, and the position of the position sensor Based on the first control amount starting from, the drive unit is controlled to stop the shutter at the fully closed position . In addition, the position sensor may not operate due to unexpected circumstances. In this case, an emergency state occurs in which the position of the shutter that is closed is not detected at the detection position of the position sensor. In such a case, the second control unit has priority over the first control unit, and controls the drive unit based on the total control amount starting from the fully opened position of the shutter to stop the shutter at the fully closed position . Thus, even in the case of an emergency state in which no detection is made at the detection position of the position sensor, it is possible to control the shutter that closes and to stop the shutter at the fully closed position .

  In the first aspect, the storage unit described above stores the first control amount required for the drive unit to close the shutter from the detection position of the position sensor to the fully closed position, and the position sensor from the fully open position. The total control amount obtained by adding the preliminary control amount to the second control amount required for the drive unit to close the shutter to the detection position is stored. The preliminary control amount corresponds to a control amount required for the drive unit to close the shutter from the detection position of the position sensor to the fully closed position. The preliminary control amount includes the distance from the detection position of the position sensor to the fully closed position, the type of shutter device, the installation location of the shutter (for example, due to the influence of thermal expansion, thermal contraction, wind, etc.), and the shutter on the winding body. When winding, it sets suitably considering the factor of the state of a winding diameter.

  In the second aspect, the storage unit stores the first control amount required for closing the shutter from the detection position of the position sensor to the fully closed position, and the shutter from the fully open position to the fully closed position. The total control amount required for closing the is memorized. The total control amount corresponds to a control amount required for the drive unit to perform the closing operation of the shutter from the fully open position to the fully closed position. The total control amount is the distance from the fully open position to the fully closed position, the type of shutter device, the installation location of the shutter (for example, because of the influence of thermal expansion, thermal contraction, wind, etc.), and when the shutter is wound around the winding body. Is appropriately set in consideration of the factor of the winding diameter state.

  According to the shutter device according to the third aspect, in the first aspect and the second aspect, the aging deterioration countermeasure means for adjusting the first control amount and / or the total control amount according to the aging deterioration in the shutter device is provided. It is characterized by being. Even if aged deterioration occurs in the shutter device, the shutter closing operation can be performed satisfactorily. It is preferable to adjust the first control amount and the total control amount, but only one of them may be used.

According to the present invention, the first control means is prioritized over the second control means in the normal state where the position of the shutter that is closed is detected at the detection position of the position sensor, and the drive unit is based on the first control amount. To stop the shutter at the fully closed position . The first control amount corresponds to a control amount related to the drive unit that is required for closing the shutter from the detection position of the position sensor to the fully closed position. For this reason, the first control amount is a control amount that starts from the detection position of the position sensor provided between the fully closed position and the fully open position, and the winding diameter of the shutter wound around the winding body is relative. We are assuming that it is to small. Therefore, the first control amount is less affected by the variation of the shutter winding diameter based on the secular change of the shutter device, thermal expansion, and the like. Therefore, the shutter closed state can be controlled while suppressing the influence of the secular change of the shutter device.

However, there is an emergency state in which the position of the shutter that is closed is not detected at the detection position of the position sensor. In this case, the second control unit has priority over the first control unit, and controls the drive unit based on the total control amount to stop the shutter at the fully closed position . That is, in an emergency state in which the position of the shutter to be closed is not detected at the detection position of the position sensor, the second control means has priority over the first control means, and the drive unit is based on the total control amount starting from the fully open position. To stop the shutter at the fully closed position . In this way, even in an emergency state where the shutter is not detected at the detection position of the position sensor, the shutter that closes can be controlled and stopped at the fully closed position satisfactorily.

  The drive unit described above is preferably a motor such as a DC motor. As the control amount related to the first control amount, the second control amount, the preliminary control amount, and the total control amount, a control amount (for example, a motor control amount) generated in accordance with the rotation amount of the motor based on the rotation of the motor. The number of pulses generated in a rotation speed sensor such as an encoder by rotation) or a command control amount input to a motor drive circuit to rotate the motor is preferable. The pulse width may be constant or not constant depending on the conditions.

  The shutter is configured by arranging a plurality of slats side by side, and each slat includes an upper fitting portion that fits with a slat adjacent to the upper side, and a lower fitting that fits with a slat adjacent to the lower side. The form provided with the joint part is illustrated. The upper fitting portion is exemplified by one of concave or convex. As for a lower fitting part, the other of a concave or convex is illustrated. When the shutter is closed, it is preferable that the upper fitting portion and the lower fitting portion are fitted to increase the shutter rigidity. The shutter device may be a shutter device in which at least one slat can be opened and closed like a blind, or may be a non-blind shutter device in which the slat is not opened.

  Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the shutter device. FIG. 2 shows a block diagram of the control unit 100. As shown in FIG. 1, the shutter device includes a shutter 1 that can be opened and closed, a horizontal frame 4, a vertical frame 5, and a lower frame 8 provided between lower portions of the vertical frame 5. On both the left and right sides of the shutter 1, chain-like linear connecting members 7 are provided. The linear connecting member 7 connects the ends in the longitudinal direction of the slats 6 provided adjacent to each other in the height direction (arrow H direction) of the shutter device. The linear connecting member 7 can be expanded and contracted along the height direction (arrow H direction). The upper end of the linear connecting member 7 is connected to the winding body 2. The shutter 1 is formed by juxtaposing a plurality of slats 6 extending in the longitudinal direction (arrow L direction) in the vertical direction. At the lower end of the shutter 1, a seat plate 9 is provided which can be landed on the lower frame 8 and seated. A position sensor 50 as specific position detecting means is provided in the vertical frame 5 of the shutter device. The position sensor 50 detects the position of the lower end of the shutter 1, that is, the position of the seat plate 9 at the lower end of the shutter 1, and is an intermediate position between the fully open position Ho and the fully closed position Hs of the shutter 1. Is provided. The position is preferably above the landing position where the seat plate 9 at the lower end of the shutter 1 lands on the lower frame 8.

  A drive unit 3 is provided for operating the shutter 1 in the closing direction (arrow H2 direction) and the opening direction (arrow H1 direction). The driving unit 3 is provided in the horizontal frame 4 and wound around the horizontal shaft 2 around which the shutter 1 is wound, a motor 30 provided in the horizontal frame 4 that rotates the winding body 2, and switching that drives the motor 30. A drive circuit 32 having elements and a PWM circuit 34 for inputting a pulse current as an excitation current to the drive circuit 32 are provided. When the winding body 2 rotates in the winding direction, the shutter 1 operates in the opening direction (in the direction of arrow H1) and is wound on the outer peripheral surface 2p of the winding body 2. When the winding body 2 rotates in the unwinding direction, the shutter 1 operates in the closing direction (arrow H2 direction) and is unwound from the outer peripheral surface 2p of the winding body 2. A rotation speed sensor 300 that detects a motor rotation speed of the motor 30 (a driving amount of the driving unit) is provided in the motor 30. The rotation speed sensor 300 can function as drive unit drive amount detection means (motor drive amount detection means, motor rotation amount detection means) that detects the drive amount of a drive unit such as the motor 30. Examples of the rotation speed sensor 300 include an optical sensor and a magnetic sensor.

  The motor 30 is provided with a motor load sensor 39 as load detecting means for detecting the actual load of the motor 30 when the shutter 1 is operated in the closing direction. The rotation speed sensor 300 described above generates a pulse signal having a pulse number corresponding to (or equivalent to) the rotation amount of the motor 30 as the motor 30 rotates. This pulse signal is input as a physical quantity indicating the rotation amount of the motor 30 to the control unit 100 via the input processing circuit 104, and the first pulse number P1, the second pulse number P2, and the total pulse number described in this specification. Counted as Ptotal. The motor load sensor 39 is formed by a current sensor that detects an overcurrent of the motor 30.

  As illustrated in FIG. 2, the control unit 100 includes a CPU 101, a ROM 102 and a RAM 103 as storage units, an input processing circuit 104, and an output processing circuit 105. The signal Mp of the rotation speed sensor 300, the signal Ip of the motor load sensor 39, and the signal Sp from the position sensor 50 are input to the control unit 100 via the input processing circuit 104.

  The shutter device closes the shutter 1 from the fully open position Ho to the fully closed position Hs of the shutter 1. When the shutter 1 is operated in the opening direction, the shutter 1 contacts the upper stopper 1s. Thus, when the shutter 1 contacts the stopper 1 s, motor overcurrent flows to the motor 30. For this reason, this position is stored as a fully open position Ho of the shutter 1 in a predetermined area of the ROM 102 or RAM 103 of the storage unit.

The drive unit 3 closes the shutter 1 from the fully open position Ho of the shutter 1 to the fully closed position Hs of the shutter 1. The position sensor 50 is provided at a position between the fully open position Ho and the fully closed position Hs of the shutter 1 and detects the position of the shutter 1 that is closed.

  Further explanation will be given with reference to FIG. According to the present embodiment, the number of pulses generated in the rotation speed sensor 300 based on the rotation of the motor 30 required to close the shutter 1 from the position of the position sensor 50 to the fully closed position Hs of the shutter 1. (Corresponding to the rotation amount of the motor 30) is defined as a first pulse number P1 (first control amount). Further, in order to close the shutter 1 from the fully open position Ho of the shutter 1 to the position of the position sensor 50, the number of pulses generated in the rotational speed sensor 300 is set to the second pulse number P2 based on the rotation of the motor 30 of the driving unit 3. (Corresponding to the second control amount and the rotation amount of the motor 30). The number of pulses obtained by adding the number of preliminary pulses Pc (preliminary control amount) to the second number of pulses P2 (second control amount) is defined as a total pulse number Ptotal (total control amount). Here, as the number of set pulses of the reserve pulse number Pc, the distance from the detection position of the position sensor 50 to the fully closed position Hs, the type of the shutter device, the installation location of the shutter 1 (for example, thermal expansion, thermal contraction, wind, etc.) In order to wind the shutter 1 around the outer periphery of the winding body 2, it is set appropriately in consideration of the factor of the winding diameter state of the winding body 2. The RAM 103 or the ROM 102 constituting the storage unit sets the set number of pulses of the first pulse number P1 (first control amount), the set number of pulses of the second pulse number P2 (second control amount), and the total number of pulses Ptotal. The number of pulses is stored.

  In FIG. 3, the fully open position Ho of the shutter 1, the fully closed position Hs of the shutter 1, and the detection position of the position sensor 50 are shown. Thus, the detection position of the position sensor 50 is arranged between the fully open position Ho and the fully closed position Hs of the shutter 1. For example, the set number of pulses of the first pulse number P1 (first control amount) is 500 pulses, the set number of pulses of the second pulse number P2 (second control amount) is 2500 pulses, and the reserve pulse number Pc (preliminary control amount). ) Is set to α pulses, and the total number of pulses Ptotal (total control amount) is set to (2500 + α) pulses.

  Forms X1 and X2 shown in FIG. 3 show forms for closing the shutter 1 from the fully open position Ho to the fully closed position Hs. When controlling the closing operation of the shutter 1 based only on the total number of pulses Ptotal (total control amount) from the fully open position Ho to the fully closed position Hs of the shutter 1 starting from the fully open position Ho of the shutter 1 It is susceptible to changes in the winding diameter due to effects such as aging and thermal expansion.

  For example, as shown as form X1 in FIG. 3, when the fully open position Ho of the shutter 1 is displaced upward by ΔL1, the lower end portion of the shutter 1 moves from the fully closed position Hs to the upper side by ΔL2, and the shutter 1 is moved. Even if the closing operation is performed, a gap corresponding to ΔL2 may be generated. Further, when the fully open position Ho of the shutter 1 is displaced by ΔL3 downward as shown in the form X2 in FIG. 3 due to the influence of the winding diameter due to the influence of secular change, thermal expansion, etc., the lower end of the shutter 1 Shifts from the fully closed position Hs to the lower side by ΔL4, and there is a possibility that an excessively close operation corresponding to ΔL4 occurs.

  By the way, at the fully open position Ho of the shutter 1, the shutter 1 is wound around the outer peripheral surface 2 p of the winding body 2 in a multiple manner. On the other hand, at the fully closed position Hs of the shutter 1, the shutter 1 is not wound around the outer peripheral surface 2p of the winding body 2 or is not substantially wound. Therefore, in the position sensor 50 existing between the fully open position Ho and the fully closed position Hs of the shutter 1, the shutter 1 is not wound around the outer peripheral surface 2 p of the winding body 2 as compared with the fully open position Ho. For this reason, when the motor 30 and the shutter 1 are controlled based on the first pulse number P1 (first control amount) required from the detection position of the position sensor 50 to the fully closed position Hs of the shutter 1, the shutter It can be said that it is not easily affected by fluctuations in the winding diameter. That is, if the motor 30 and the shutter 1 are controlled based on the total number of pulses Ptotal (total control amount) starting from the fully opened position Ho where the winding diameter of the winding body 2 is relatively large, the influence of changes in the shutter winding diameter and the like. It is easy to receive. On the other hand, when the shutter winding diameter in the winding body 2 is relatively smaller than that in the fully open position Ho, that is, the first pulse number P1 (first control amount) starting from the detection position of the position sensor 50. Control of the motor 30 and the shutter 1 based on the above is less susceptible to fluctuations in the winding diameter due to aging, thermal expansion, and the like, and the control accuracy for controlling the operation of the motor 30 and the shutter 1 can be improved.

  Therefore, according to the present embodiment, in the normal state in which the position of the shutter 1 that operates in the closing direction is detected at the detection position of the position sensor 50, the first control for the normal control is more effective than the second control means for the emergency control. Priority is given to the control means. That is, the first control means closes the shutter 1 from the detection position of the position sensor 50 to the fully closed position Hs of the shutter 1 as shown in the form X3 of FIG. The motor 30 and the shutter 1 of the drive unit are controlled based on the first pulse number P1 (first control amount) required for the operation for the operation. As a result, the motor 30 and the shutter 1 can be satisfactorily stopped at the fully closed position Hs. For this reason, control such as stop control of the shutter 1 is less susceptible to fluctuations in the winding diameter of the winding body 2 due to secular change, thermal expansion, etc., and the position control accuracy of the shutter 1 can be improved. 1 can be stopped at the fully closed position Hs.

  However, in actual use of the shutter device, a failure of the position sensor 50 or a wiring failure of the position sensor 50 may occur due to unexpected circumstances. Thus, when the shutter 1 that operates in the closing direction is not detected at the detection position of the position sensor 50, the second control means for emergency control has priority over the first control means for normal control.

  That is, the second control means for emergency control is the total pulse required for the operation for closing the shutter 1 from the fully open position Ho to the fully closed position Hs of the shutter 1 as shown as form X4 in FIG. Based on the number Ptotal (total control amount), the motor 30 and the shutter 1 are controlled to stop the motor 30 and the shutter 1.

  As described above, according to the present embodiment, when the shutter 1 operating in the closing direction is not detected by the position sensor 50, the first control means is quickly switched to the second control means. The second control means is susceptible to the change in the shutter winding diameter, but stops the motor 30 and the shutter 1 by controlling the motor 30 and the shutter 1 based on the total number of pulses Ptotal starting from the fully opened position Ho. In this way, even if the position of the shutter 1 is not detected by the position sensor 50 due to the failure of the position sensor 50, the wiring failure of the position sensor 50, etc., the shutter 1 that operates in the closing direction will be described. The position can be controlled and stopped well. Therefore, even when the position of the shutter 1 is not detected by the position sensor 50, it is possible to prevent the shutter 1 that is closed in the closing direction from stopping in the vicinity of the fully closed position Hs. Therefore, it is avoided that the shutter 1 is damaged.

  FIG. 4 shows an example of a flowchart executed by the CPU 101 when the shutter 1 at the open position Ho is operated in the closing direction. The flowchart is not limited to this. As shown in FIG. 4, first, the CPU 101 outputs a command for operating the shutter 1 in the closing direction to the motor 30 (step S2). As a result, a pulse is input to the motor 30 as a drive current through the input processing circuit 104, the drive circuit 32, and the PWM circuit 34. Accordingly, the motor 30 is rotationally driven, the winding body 2 is rotationally driven in the unwinding direction, and the shutter 1 is operated in the closing direction.

  The CPU 101 reads the number of pulses generated in the rotation speed sensor 300 provided in the motor 30 (total number of pulses Ptotal starting from the fully opened position Ho of the shutter 1) (step S4). The set pulse value of the total pulse number Ptotal corresponds to the rotation amount of the motor 30 with the fully open position Ho of the shutter 1 as the measurement start point. Further, it is determined whether or not the position sensor 50 is turned on (step S6). That is, it is determined whether or not the seat plate 9 of the shutter 1 has reached the detection position of the position sensor 50.

  If the position sensor 50 is not turned on as a result of the determination in step S6 (False in step S6), it is determined whether or not the current pulse number measured from the fully opened position Ho has reached the set pulse number of the total pulse number Ptotal. Determination is made (step S8). If the current pulse number does not reach the set pulse number of the total pulse number Ptotal (False in step S8), the shutter 1 is not closed yet, and the closing operation of the shutter 1 is continued (step S10).

  If the result of determination in step S6 is that the position sensor 50 is on (True in step S6), the number of pulses P1 generated starting from the detection position of the position sensor 50 is read (step S12). Then, it is determined whether or not the current pulse number measured from the detection position of the position sensor 50 has reached the set pulse value of the first pulse number P1 (step S14). If the measured current pulse number starting from the detection position of the position sensor 50 has reached the set pulse value of the first pulse number P1 (true in step S14), it is estimated that the shutter 1 has reached the fully closed position. Therefore, a command to stop the motor 30 is output (step S16).

  When a command to stop the motor 30 is output, the aging deterioration count CA is incremented by 1 (step S18). If the count number of the aging deterioration count CA reaches the threshold value Ctotal (True in step S20), the set pulse value of the first pulse number P1 is increased by a predetermined number (for example, 1) and the set pulse value of the total pulse number Ptotal is increased. A predetermined number (for example, 1) is increased, and the count CA is reset. Accordingly, the aging deterioration of the shutter device is counted by the aging deterioration count CA, and the set pulse value of the first pulse number P1 and the set pulse value of the total pulse number Ptotal are adjusted. it can. Depending on the characteristics of the shutter device, when the count number of the aging deterioration count CA reaches the threshold value Ctotal, the first pulse number P1 is decreased by a predetermined number (for example, 1) and the total pulse number Ptotal is decreased by a predetermined number (for example, 1). ) It may be reduced.

  As a result of the determination in step S6, if the position sensor 50 is not turned on until the end (False in step S6), the process proceeds from step S6 to step S8. In step S8, it is determined whether or not the current pulse number measured from the fully open position Ho has reached the total pulse number Ptotal (step S8). If the current number of pulses measured from the fully open position Ho has reached the total number of pulses Ptotal (True in step S8), it is estimated that the lower end of the shutter 1 has reached the fully closed position Hs. In step S16, the motor 30 is stopped (step S16), and further aged deterioration is dealt with (steps S18 to S22).

  Step S4, step S6, step S12, step S14, and step S16 described above are the first control that starts from the position of the position sensor 50 when the position of the shutter 1 that is closed is detected at the detection position of the position sensor 50. It functions as a first control means for normal control that stops the shutter 1 by controlling the motor 30 of the drive unit 3 based on the amount. Steps S4, S6, S8, and S16 described above are based on the total control amount starting from the fully opened position Ho when the closing shutter 1 is not detected by the position sensor 50. It functions as a second control means for emergency control that controls the shutter 1 to stop the shutter 1. Step S6 described above functions as a determination unit that determines whether or not the position of the shutter 1 that is closed is detected at the detection position of the position sensor 50. Steps S18, S20, and S22 described above are for adjusting the set pulse number of the first pulse number P1 and the set pulse number of the total pulse number Ptotal according to the aging deterioration in the shutter device. Even if this occurs, it can function as an aged deterioration countermeasure unit corresponding to stopping the shutter 1. In some cases, only one of the set pulse number of the first pulse number P1 or the set pulse number of the total pulse number Ptotal may be adjusted.

  In measuring the first pulse number P1 and the total pulse number Ptotal, the duty value supplied to the motor 30 may be constant or the duty value may be variable.

  FIG. 5 shows a second embodiment. The present embodiment basically has the same configuration and operational effects as the first embodiment. Hereinafter, the description will focus on the different parts. According to the first embodiment described above, the position sensor 50B as the specific position detecting means is provided between the fully open position Ho and the fully closed position Hs in the vertical frame 5, but not limited to this, FIG. As shown, it may be a landing position sensor that detects that the seat plate 9 of the shutter 1 has landed on the lower frame 8.

  FIG. 6 shows a third embodiment. The present embodiment basically has the same configuration and operational effects as the first embodiment. In FIG. 6, when the winding body 2 is rotated around the rotation center 2x by the motor 30 in the winding direction (arrow A1 direction), the linear connecting member 7 moves upward (arrow H1 direction) and winds. The winding body 2 is gradually wound around the outer peripheral surface 2p. On the other hand, when the motor 30 reversely moves and the winding body 2 rotates about the rotation center 2x in the unwinding direction (arrow A2 direction), the linear connecting member 7 moves downward (arrow H2 direction). And is unwound from the outer peripheral surface 2p of the winding body 2. The slat 6 includes a convex upper fitting portion 60 that fits with the slat 6 adjacent to the upper side, and a concave lower fitting portion 61 that fits the slat 6 adjacent to the lower side. I have. When the shutter 1 is in a closed state, the upper fitting portion 60 and the lower fitting portion 61 are fitted to increase the rigidity of the shutter 1. The rigidity of the shutter 1 is increased and the crime prevention property is improved. 3 corresponds to a process in which the fitting of the convex upper fitting portion 60 and the concave lower fitting portion 61 between the slats 6 proceeds.

  FIG. 7 shows a fourth embodiment. The present embodiment basically has the same configuration and operational effects as the first embodiment. In FIG. 7, the slats 6C constituting the shutter 1C are not fitted to each other and can be bent.

(Other)
According to the first embodiment described above, one position sensor 50 is provided. However, the position sensor 50 is not limited to this, and a plurality of position sensors 50 are provided in a direction connecting the fully open position Ho and the fully closed position Hs of the shutter 1. May be. According to each of the embodiments described above, the number of pulses generated in the rotation speed sensor 300 as the motor 30 rotates is adopted as the control amount, but the present invention is not limited to this. That is, the amount of power supplied to the motor 30 that operates the shutter 1 may be set as the control amount. In this case, the motor power amount required for closing the shutter 1 from the detection position of the position sensor 50 to the fully closed position Hs is set as the first control amount. A motor power amount required for closing the shutter 1 from the fully open position Ho to a detection position of the position sensor 50 is defined as a second power amount (second control amount). The total power amount (total control amount) is obtained by adding the reserve power amount (preliminary control amount) to the second power amount (second control amount). The reserve power amount (preliminary control amount) corresponds to closing the shutter 1 from the detection position of the position sensor 50 to the fully closed position Hs. The amount of power corresponds to the command control amount. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention. Structures and functions specific to one embodiment can be applied to other embodiments.

  The present invention can be used for a shutter device for home use or business use, for example.

It is a front view of a shutter device. It is a block diagram of the control part of a shutter apparatus. It is a figure which shows the form which operates a shutter in the closing direction in a shutter apparatus. It is an example of the flowchart which CPU of the control part of a shutter apparatus performs. FIG. 6 is a front view of the shutter device according to the second embodiment. FIG. 10 is a diagram illustrating a state in which the shutter is unwound from the winding body of the shutter device according to the third embodiment. FIG. 10 is a perspective view illustrating a state in which the shutter is unwound from the winding body of the shutter device according to the fourth embodiment.

Explanation of symbols

  1 is a shutter, 2 is a winding body, 3 is a drive unit, 30 is a motor, 32 is a drive circuit, 34 is a PWM circuit, 5 is a vertical frame, 50 is a position sensor (specific position detecting means), 8 is a lower frame, 9 indicates a seat plate, Ho indicates a fully open position, and Hs indicates a fully closed position.

Claims (5)

A shutter device for closing the shutter from a fully open position to a fully closed position of the shutter,
A drive unit for closing the shutter from the fully open position to the fully closed position of the shutter;
A position sensor having a detection position for detecting a position of the shutter which is provided between the fully open position of the shutter and the fully closed position and operates to close;
A first control amount required for closing the shutter from the detection position of the position sensor to the fully closed position is stored, and the shutter is moved from the fully open position to the detection position of the position sensor. A storage unit for storing a total control amount obtained by adding a preliminary control amount to the second control amount required for the closing operation;
In a normal state where the position of the shutter that is closed is detected at the detection position of the position sensor, the drive unit is controlled based on the first control amount to stop the shutter at the fully closed position . 1 control means;
When the emergency position of the shutter for closing operation is not detected at the detection position of the position sensor, a second control for stopping the shutter by controlling the driving unit based on the total control amount in the fully closed position And a shutter device. A shutter device for closing the shutter from a fully open position to a fully closed position of the shutter,
A drive unit for closing the shutter from the fully open position to the fully closed position of the shutter;
A position sensor having a detection position for detecting a position of the shutter which is provided between the fully open position of the shutter and the fully closed position and operates to close;
To store a first control amount required to close the shutter from the detection position of the position sensor to the fully closed position, and to close the shutter from the fully open position to the fully closed position A storage unit for storing the total control amount required for
In a normal state where the position of the shutter that is closed is detected at the detection position of the position sensor, the drive unit is controlled based on the first control amount to stop the shutter at the fully closed position . 1 control means;
When the emergency position of the shutter for closing operation is not detected at the detection position of the position sensor, a second control for stopping the shutter by controlling the driving unit based on the total control amount in the fully closed position And a shutter device.   3. The drive unit according to claim 1, wherein the driving unit is a motor, and the first control amount, the second control amount, the preliminary control amount, and the total control amount are the number of pulses generated by rotation of the motor, or The shutter device is a command control amount input to the motor.   4. The shutter according to claim 1, wherein the shutter is configured by arranging a plurality of slats side by side, and each of the slats includes an upper fitting portion that is fitted to the slat adjacent to the upper side. A lower fitting portion that is fitted to the slat adjacent to the lower side, and the upper fitting portion and the lower fitting portion are fitted when the shutter is closed. Thus, the shutter device is structured to increase the rigidity of the shutter.   5. The aging deterioration countermeasure means for adjusting the first control amount and / or the total control amount in accordance with aging deterioration in the shutter device according to claim 1 is provided. Shutter device.

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