JP2010265694A - Control device and control method for electric vertical blind - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for an electric vertical blind, capable of reducing a load required during the folding operation of the slats and also reducing a time required for the folding operation. <P>SOLUTION: In this electric vertical blind, slats are rotatably suspended from a large number of runners movably supported on a hanger rail, the runners are conveyed along the hanger rail by the drive force of a motor for guidance 22 for the extraction operation and folding operation of the slats, and the slats are rotated by the drive force of a motor for tilting 23. The control device includes a control unit 30 which, during the folding operation of the slats, rotates the slats to an angle at which the slats placed one another horizontally during the folding operation of the slats are not rotated before the motor for guidance 22 is operated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a control device for an electric vertical blind that performs an induction operation of pulling or folding a slat along a hanger rail with a driving force of a motor and an angle adjustment operation of the slat.

  In the electric vertical blind, a large number of runners are supported on a hanger rail so as to be movable, and slats are supported so as to be rotatable from the runners. In the hanger rail, a guide shaft for transferring the runner and a tilt shaft for rotating the slat are rotatably supported. The guide shaft is driven to rotate by a guide motor, and the tilt shaft is driven to rotate by an opening / closing motor. .

  When the guide motor is actuated by operating the operation switch, the guide shaft is rotated, and the runner is pulled out or folded along the hanger rail by the rotation of the guide shaft. Further, when the opening / closing motor is actuated by operating the operation switch, the tilt shaft is rotated, and the slat supported by each runner is rotated by the rotation of the tilt shaft.

  FIG. 17 shows an example of a slat convolution operation in a conventional electric vertical blind. In this electric vertical blind, a slat 1 formed of a wooden plate is supported suspended from runners 2 and 3.

  In FIG. 17 (a), the leading runner 2 is pulled out along the hanger rail, and the subsequent runner 3 is pulled out at equal intervals via the spacers 4 that connect the front and rear runners. The state where the slat 1 is rotated to one side in the fully closed direction, that is, the direction substantially along the hanger rail is shown.

At this time, due to the thickness of the slat 1, the sandwich angle with the center line C of the hanger rail is Y, and the slat 1 and the hanger rail are not completely parallel.
When the slat 1 is folded from this state, as shown in FIG. 17B, the leading runner 2 sequentially pushes the subsequent runner 3 back to one end side of the hanger rail. At this time, the angle between the slats 1 and the center line C of the hanger rail is Z degrees, and the runners 2 and 3 are pushed back in a state where a gap T exists between the runners 2 and 3.

The sandwiching angle Z and the gap T are angles and gaps that balance the force that pushes back each runner 3 with the leading runner 2 and the frictional resistance for rotating the slat 1 in the direction of arrow A.
Next, as shown in FIG. 17 (c), when all the runners 2 and 3 are folded into one end of the hanger rail and the leading runner 2 is pushed back in the same direction, the result shown in FIG. 17 (d) is obtained. As described above, there is no gap between the runners 2 and 3. At this time, the slat 1 is further rotated in the direction of arrow A, and the sandwiching angle between the center line C of the hanger rail and each slat 1 becomes X + Y.

Incidentally, in the vertical blind provided with the slat 1 shown in FIG. 17, Y = 5 degrees and X = 40 degrees.
By such an operation, the slat 1 is folded on one end side of the hanger rail in a state where the folding size is minimized.

JP 2000-220366 JP 2007-239225 A

  In the electric vertical blind that performs the operation shown in FIG. 17, in the process of transition from the state shown in FIG. 17C to the state shown in FIG. The load for rotating in the direction of arrow A and eliminating the gap T between the runners 2 and 3 increases. That is, in order to eliminate the gap T, it is necessary to press the vicinity of the rotation center of the slat 1 through the runners 2 and 3 and rotate the slat 1 stacked and folded in a parallel state. A large pressing force is required to rotate the slat 1.

  Therefore, a large induction motor with a large output torque is required, which increases costs and increases the size of the hanger rail to accommodate the large motor.

  In order to solve this problem, when the slat 1 is folded, the slat 1 is rotated to the angle shown in FIG. 17 (d) prior to the folding operation of the slat 1, and then the slat 1 is folded. Type blinds have also been proposed.

  However, in the electric vertical blind provided with a control unit that controls the rotation amount of the slat 1 with a timer (see Patent Document 2), the actual angle of the slat is not detected, so all the slats 1 and the hangers In order to rotate so that the angle between the rail and the center line C is X + Y, the following operation is required.

  First, all the slats 1 are rotated in the reverse fully closed direction for a certain period of time so that all the slats 1 are in the reverse fully closed state, the angles of all the slats 1 are aligned, and then the slats 1 are rotated approximately 180 degrees to the fully closed state. The state shown in (a) is assumed.

  Next, the slat 1 is rotated in the reverse fully closed direction so that the angle between the center line C of the hanger rail and each slat 1 becomes X + Y, and then the slat 1 starts to be folded. .

However, in order to perform such control, there is a problem that it takes time until the slat 1 starts to be folded.
Patent Document 1 discloses an electric horizontal blind that includes an encoder that detects the amount of rotation of a slat and rotates the slat to a required angle prior to a lifting operation of the slat. In such a configuration, since the rotation angle of the slat is constantly detected, it is possible to shorten the time for rotating the slat to a required angle prior to the lifting operation. However, since it is necessary to provide an encoder, the cost increases.

  An object of the present invention is to provide a control device for an electric vertical blind that can reduce the load during the folding operation of the slats and can reduce the time required for the folding operation.

  In claim 1, the slat is supported by being suspended from a large number of runners supported so as to be movable on the hanger rail, and the runner is transferred along the hanger rail by the driving force of the induction motor. In an electric vertical blind that performs a pull-out operation and a convolution operation and rotates the slat with the driving force of a tilting motor, during the convolution operation of the slat, prior to the operation of the induction motor, during the convolution operation of the slat A control unit that rotates the slats stacked in parallel so as not to rotate is provided.

  According to a second aspect of the present invention, when the minimum angle of the sandwich angle between the slat and the center line of the hanger rail at the folding limit position of the slat is the first angle, the controller is configured to operate the induction motor. First, the angle of the slat is rotated within a range of (first angle) ≦ slat angle ≦ 180 degrees− (first angle).

  The control unit according to claim 3, wherein when the minimum angle of the sandwich angle between the slat and the center line of the hanger rail at the slat folding limit position is a first angle, Is rotated in the forward direction at an angle twice that of the first angle, and then rotated in the opposite direction at the first angle.

According to a fourth aspect of the present invention, the control unit controls an operation time of the tilt motor to control a rotation angle of the slat.
According to a fifth aspect of the present invention, the control unit includes a timer that controls the operation time.

  According to a sixth aspect of the present invention, when the slat is folded, the slat is rotated at an angle that prevents the slat from being rotated in a parallel state before the guidance motor is operated.

  In claim 7, when the minimum angle of the sandwiching angle between the slat and the center line of the hanger rail at the folding limit position of the slat is the first angle, prior to the operation of the induction motor, The angle is rotated within the range of (first angle) ≦ slat angle ≦ 180 degrees− (first angle).

  In Claim 8, when the minimum angle of the sandwiching angle between the slat and the center line of the hanger rail at the slat folding limit position is a first angle, the slat is an angle twice the first angle. To rotate in the forward direction and then in the opposite direction at the first angle.

  According to a ninth aspect of the present invention, the rotation time of the slat is controlled by controlling the operation time of the tilt motor.

  ADVANTAGE OF THE INVENTION According to this invention, the control apparatus of the electric vertical blind which can reduce the load at the time of folding operation of a slat, and can shorten the time required for folding operation can be provided.

It is a front view which shows the electric vertical blind of one Embodiment. It is a side view showing the electric vertical blind of one embodiment. It is a top view which shows the electric vertical blind of one Embodiment. It is a rear view of a hanger rail. It is a block diagram which shows the electric constitution of a control part. It is a flowchart which shows the slat convolution operation | movement of a control part. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(f) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(f) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(f) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(f) is explanatory drawing which shows the convolution operation | movement of a slat. (A)-(d) is explanatory drawing which shows the convolution operation | movement of the conventional slat.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. The electric vertical blind shown in FIGS. 1 to 4 is a suspension in which a leading runner 12 and a number of subsequent runners 13 are movably supported in the hanger rail 11 and are rotatably supported by the runners 12 and 13. A slat 15 is suspended and supported on the shaft 14. The slat 15 is formed of a wooden plate.

  Each runner 12, 13 is inserted with a guide shaft 16 and a tilt shaft 17 arranged in parallel in the hanger rail 11, and both ends of the guide shaft 16 and the tilt shaft 17 are at both ends of the hanger rail 11. Are connected to output shafts of gearboxes 18 and 19 provided in the respective sections.

  When the guide shaft 16 is rotated in the forward direction, the leading runner 12 is moved in the slat pulling direction (in the direction of arrow F shown in FIG. 1), and the following runners 13 follow the leading runner 12 sequentially at equal intervals. Pulled out.

  Further, when the guide shaft 16 is rotated in the reverse direction, the leading runner 12 is moved in the slat convolution direction (arrow R direction shown in FIG. 1), and the subsequent runner 13 is sequentially pushed back to one end side of the hanger rail 11. It has become.

  When the tilt shaft 17 is rotated in the forward / reverse direction, the suspension shaft 14 is rotated in the forward / reverse direction via a worm mechanism built in each runner 12, 13, and the slat 15 is fully closed or reverse. It is rotated in the fully closed direction. A known slip mechanism is provided between the worm mechanism of each runner 12, 13 and the suspension shaft 14, and the tilt shaft 17 is moved after each slat 15 is rotated in the fully closed direction or the reverse fully closed direction. If the rotation is continued in the same direction, the ends of the adjacent slats 15 come into contact with each other to prevent further rotation of each slat 15 in the same direction, so that the worm mechanism is idle with respect to the suspension shaft 14. It has become.

  On both ends of the hanger rail 11, first and second limit switches 20a and 20b are attached on the movement locus of the leading runner 12. When the leading runner 12 contacts the first limit switch 20a, it can be detected that the leading runner 12 has moved to the pull-out limit position. When the leading runner 12 contacts the second limit switch 20b, the leading runner 12 is folded. It is possible to detect the movement to the limit position.

  As shown in FIG. 2, a storage box 21 is integrally formed at the rear part of the hanger rail 11, and as shown in FIG. A tilt motor 23 is disposed near the other end of the box 21.

  The rotation of the output shaft of the induction motor 22 is transmitted to the induction shaft 16 via the coupling device 24a and the gear box 18, and the rotation of the output shaft of the tilt motor 23 is transmitted via the coupling device 24b and the gear box 19. Is transmitted to the tilt shaft 17.

  Accordingly, the guide shaft 16 is rotated by the operation of the guide motor 22, and the leading runner 12 is transferred through the hanger rail 11. Further, the tilt shaft 17 is rotated by the operation of the tilt motor 23, and the slat 15 is rotated.

  A power supply board 25 and a control board 26 are housed in the central portion of the storage box 21. A power cord 27 for supplying commercial power is connected to the power supply board 25, and a power supply circuit for supplying power to the induction motor 22, the tilt motor 23, and the control unit 28 mounted on the control board 26. 29 is mounted.

  Next, the electrical configuration of the control unit 28 will be described with reference to FIG. The power supply circuit 29 supplies power to the microcomputer 30, the drive unit 32 a that drives the induction motor 22, and the drive unit 32 b that drives the tilt motor 23. The drive units 32 a and 32 b drive the induction motor 22 and the tilt motor 23 based on a control signal output from the microcomputer 30.

  An operation signal output from a contact switch output unit 31 of an operation switch installed in the vicinity of the electric vertical blind is input to the microcomputer 30 via a contact input unit 33. The microcomputer 30 controls the drive units 32a and 32b based on the operation of the operation switch.

  A command signal output from a signal output unit 34 of a central control device such as a personal computer is input to the microcomputer 30 via a command signal input unit 35. The microcomputer 30 controls the drive units 32a and 32b based on a command signal from the central controller.

  The detection signal of the first limit switch 20a is input to the microcomputer 30 via the guidance range detection unit 36a. The detection signal of the second limit switch 20b is input to the microcomputer 30 via the guidance range detection unit 36b.

A device information setting unit 37 is connected to the microcomputer 30, and an address of the electric vertical blind is set in the device information setting unit 37.
An EEPROM 38 is connected to the microcomputer 30 so that the processing contents of the microcomputer 30 can be stored.

  The microcomputer 30 is connected to a transmission path contact receiver 39 and a transmission path contact transmitter 40 that communicate with a batch operation switch for collectively operating a large number of electric horizontal blinds. Control signals can be transmitted and received.

  The microcomputer 30 operates based on a preset program, and the slat rotation operation controls the rotation angle of the slat by counting the time during which the tilt motor 23 is operated.

Next, the operation of the microcomputer 30 when the slat 15 is folded will be described with reference to FIG.
When an operation signal or a command signal for instructing the folding of the slat is input to the microcomputer 30 from the operation switch or the central control device, the microcomputer 30 starts the control of the folding operation, and operates the tilt motor 23 to operate the slat 15. Is started to rotate in the fully closed direction (step 1).

  Next, the counting of the operation time t1 of the tilt motor 23 is started from the start of the rotation operation of the slat 15 (step 2), and when the stop signal is not input, the tilt motor 23 is operated until the operation time t1 is counted up. (Steps 3 and 4). The maximum rotation angle of the slat rotated during this operation time t1 is set to an angle twice the X + Y angle (first angle) shown in FIG. 17, that is, 2 × (X + Y) = 90 degrees. .

  For example, as shown in FIG. 7A, when the operations of steps 1 to 4 are performed from the state in which each slat 15 is rotated in the fully open direction orthogonal to the hanger rail 11, as shown in FIG. In addition, each slat 15 is rotated in the fully closed direction. Thereafter, idling occurs between the worm mechanism of each runner 12, 13 and the suspension shaft 14 until the operating time t1 is reached, and each slat 15 is held in a fully closed state.

  When the operation time t1 is counted up in step 4, the tilt motor 23 is operated in the reverse direction, and the rotation of each slat 15 in the reverse fully closed direction is started (step 5), and the operation is performed when no stop signal is input. The tilt motor 23 is operated in the same direction until the time t2 is counted up (steps 7 and 8). The maximum rotation angle of the slat rotated during the operation time t2 is set to an angle of X + Y shown in FIG.

By this operation, each slat 15 is rotated to an angle of X + 2Y with respect to the center line C of the hanger rail, that is, 50 degrees in this embodiment, as shown in FIG.
When the operation time t2 is counted up in step 8, the convolution operation of the slat 15 is started, the induction motor 22 operates in the slat convolution direction, and the slat 15 is rotated as shown in FIG. 7 (d). It can be folded without any problems.

If a stop signal is input in steps 3 and 7, the process proceeds to step 10 to stop the rotation operation of the slat 15 and stop the convolution operation.
FIG. 8 shows a case where each slat 15 is rotated 45 degrees from the center line C of the hanger rail when the slat 15 starts to be folded.

  In this case, the slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated from the state shown in FIG. 8A to the fully closed state shown in FIG. Next, the slat 15 is rotated in the reverse fully closed direction by an operation time t2, and is rotated up to 50 degrees as shown in FIG. 8C, and then the slat 15 is rotated as shown in FIG. It can be folded without any problems.

FIG. 9 shows a case where each slat 15 is rotated 135 degrees from the fully closed direction when the slat 15 starts to be folded.
In this case, the slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated 90 degrees from the state shown in FIG. 9A to the state shown in FIG. Next, the slat 15 is rotated in the reverse fully closed direction by the operation time t2, and is rotated 45 degrees as shown in FIG. 9C to the fully opened direction, and thereafter, as shown in FIG. 15 is folded without being rotated.

FIG. 10 shows a case where each slat 15 is in the reverse fully closed state when the convolution operation of the slat 15 is started.
In this case, the slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated 90 degrees from the state shown in FIG. 10A to the state shown in FIG. Next, the slat 15 is rotated in the reverse fully closed direction by the operation time t2, and as shown in FIG. 10C, it is rotated 45 degrees to the position of 130 degrees from the center line C of the hanger rail. As shown in FIG. 4D, the slat 15 is folded without being rotated.

FIG. 11 shows a case where each slat 15 is in a fully closed state when the folding operation of the slat 15 is started.
In this case, the rotation of the slat 15 in the fully closed direction is performed during the operation time t1, but as shown in FIGS. 11A and 11B, the runners 12 and 13 are idled. As a result, each slat 15 is not rotated. Next, the slat 15 is rotated in the reverse fully closed direction for the operation time t2, and as shown in FIG. 11C, it is rotated 45 degrees to the position of 50 degrees from the center line C of the hanger rail, and thereafter the same. As shown in FIG. 4D, the slat 15 is folded without being rotated.

  As described above, in the operation shown in FIGS. 7 to 11, the angle of the slat 15 during the folding operation is in the range of 50 to 130 degrees with respect to the center line C of the hanger rail. It is possible to fold the slats 15 without rotating them when the motor 22 operates.

FIG. 12 shows a case where when the folding operation of the slats 15 is started, the rotation angles of the slats 15 are 45 degrees or 90 degrees with respect to the center line C of the hanger rail and are uneven.
In this case, the rotation operation of the slats 15 in the fully closed direction is performed during the operation time t1, and as shown in FIG. 12B, all the slats 15 are rotated to the fully closed state.

  Next, the slat 15 is rotated in the reverse fully closed direction for the operation time t2 and is rotated 45 degrees as shown in FIG. 12C to be rotated to the position of 50 degrees from the center line C of the hanger rail. As shown in FIG. 4D, the slat 15 is folded without being rotated.

  As described above, even when the angles of the slats 15 are not uniform at the start of the slat folding operation, when the angles of all the slats 15 are within 2 × (X + Y) from the center line C of the hanger rail, All the slats 15 are rotated in the fully closed direction by the rotation operation at the operation time t1.

  Then, by the subsequent rotation of the operation time t2, all the slats 15 are set at an angle of 50 degrees from the center line C of the hanger rail, and the slats 15 are not rotated during the convolution operation, that is, during the operation of the induction motor 22. It can be folded.

FIG. 13 shows a case where when the folding operation of the slats 15 is started, the rotation angles of the slats 15 are 90 degrees or 135 degrees from the center line C of the hanger rail and are uneven.
In this case, each slat 15 is rotated in the fully closed direction during the operation time t1, and is rotated 90 degrees from the state shown in FIG. 13A to the state shown in FIG. Then, each slat 15 will be in the state where the slat 15 rotated to a fully closed state and the slat 15 which will be in the state which leaves 40 degree | times until a fully closed state are mixed.

  Next, each slat 15 is rotated in the reverse fully closed direction by an operation time t2 and is rotated 45 degrees as shown in FIG. 13C to be rotated from the fully closed state to a position of 45 degrees. The slat 15 rotated to the fully open state is mixed.

  Next, the folding operation of the slat 15 is started, and as shown in FIG. 13D, the end portion of the slat 15 rotated from the fully closed state to the 45 degree position is rotated to the fully opened position. 15 abuts against the end in the width direction.

  Then, as shown in FIG. 13E, the slats 15 having different rotation angles are rotated in opposite directions to the same angle as shown in FIG. 13F, and then the slats 15 are rotated. Without being folded.

  When adjacent slats 15 having different rotation angles are in contact with each other and rotate, the angle at which both slats 15 converge is the middle of the angle between both slats 15 if the frictional resistance during rotation of both slats 15 is equal. That is, the angle converges to an angle rotated 20 degrees from the fully open direction in the example shown in FIG.

FIG. 14 shows a case where when the folding operation of the slats 15 is started, the rotation angles of the respective slats 15 are in the fully open direction or the reverse fully closed state and are uneven.
In this case, each slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated 90 degrees from the state shown in FIG. 14A to the state shown in FIG. Then, each slat 15 will be in the state where the slat 15 rotated to a fully closed state and the slat 15 which will be in the state which leaves 80 degree | times until a fully closed state are mixed.

  Next, each slat 15 is rotated in the reverse fully closed direction by an operation time t2, and as shown in FIG. 14C, the slat 15 is rotated by 45 degrees and rotated to a position of ± 40 degrees from the fully opened state. It becomes a mixed state.

Next, the folding operation of the slats 15 is started, and the end portions of the adjacent slats 15 come into contact with each other with different rotation angles as shown in FIG.
Then, as shown in FIG. 14E, the slats 15 having different rotation angles are rotated in opposite directions to the same angle as shown in FIG. 14F, and then the slats 15 are rotated. Without being folded.

  In this case, the adjacent slats 15 having different rotation angles are positioned in line symmetry with respect to the fully opened position. Therefore, the angle at which the slats 15 converge is equal to the frictional resistance when both slats 15 are rotated. It converges to an intermediate angle between both slats 15, that is, to a fully open state.

  FIG. 15 shows a case where the rotation angle of each slat 15 is 90 degrees or 135 degrees with respect to the center line C of the hanger rail and is not uniform when the folding operation of the slats 15 is started.

  In this case, each slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated 90 degrees from the state shown in FIG. 15A to the state shown in FIG. Then, each slat 15 will be in the state where the slat 15 rotated to a fully closed state and the slat 15 which will be in the state which leaves 40 degree | times until a fully closed state are mixed.

  Next, each slat 15 is rotated in the reverse fully closed direction by an operation time t2, and is rotated 45 degrees as shown in FIG. 15C, so that the slat 15 is fully opened and the slat 15 is left 40 degrees until the fully opened state. Will be mixed.

Next, the folding operation of the slats 15 is started, and the end portions of the adjacent slats 15 come into contact with each other with different rotation angles as shown in FIG.
Then, as shown in FIG. 15 (e), the slats 15 having different rotation angles rotate in opposite directions to the same angle as shown in FIG. 15 (f), and then the slats 15 are rotated. Without being folded.

  When adjacent slats 15 having different rotation angles are in contact with each other and rotate, the angle at which both slats 15 converge is the middle of the angle between both slats 15 if the frictional resistance during rotation of both slats 15 is equal. 15, that is, an angle that leaves 20 degrees in the fully open direction in the example shown in FIG.

  FIG. 16 shows a case where when the folding operation of the slats 15 is started, the rotation angles of the respective slats 15 are 135 degrees with respect to the center line C of the hanger rail or in a reverse fully closed state and are not uniform.

  In this case, each slat 15 is rotated in the fully closed direction for the operation time t1, and is rotated 90 degrees from the state shown in FIG. 16A to the state shown in FIG. Then, each slat 15 is in a state where a slat 15 rotated to a position of 45 degrees from the center line of the hanger rail and a slat 15 rotated to a position of 85 degrees from the center line C of the hanger rail are mixed. .

  Next, each slat 15 is rotated in the reverse fully closed direction by an operation time t2, and is rotated 45 degrees as shown in FIG. 16 (c), and the slat 15 that is fully opened and the slat rotated 40 degrees from the fully opened state. 15 is mixed.

Next, the folding operation of the slats 15 is started, and the end portions of the adjacent slats 15 come into contact with each other with different rotation angles as shown in FIG.
Then, as shown in FIG. 16 (e), the slats 15 having different rotation angles rotate in opposite directions to the same angle as shown in FIG. 16 (f), and then the slats 15 are rotated. Without being folded.

  When adjacent slats 15 having different rotation angles are in contact with each other and rotate, the angle at which both slats 15 converge is the middle of the angle between both slats 15 if the frictional resistance during rotation of both slats 15 is equal. 16, that is, the angle rotated 20 degrees from the fully open direction in the example shown in FIG.

In the control device for the electric vertical blind constructed as described above, the following operational effects can be obtained.
(1) When the slat 15 is folded, the slat 15 is rotated prior to the operation of the induction motor 22 for transferring the slat 15 to reduce the load on the induction motor 22 during the slat transfer. It can be rotated to an angle that can be rotated, that is, an angle that does not rotate in a state where the slats 15 are stacked in parallel. Therefore, it is possible to reduce the cost by reducing the size of the induction motor 22 and to reduce the size of the hanger rail 11 including the storage box 21 that stores the induction motor 22.
(2) Using the timer function of the microcomputer 30, the operation time of the tilt motor 23 can be counted to control the rotation angle of the slat 15. Therefore, since the rotation angle of the slat 15 can be controlled without using an encoder, the cost can be reduced.
(3) Prior to the folding operation of the slats 15, the slats 15 are rotated in the fully closed direction for the operating time t1, and then the slats 15 are operated in the reverse fully closed direction for the operating time t2, so that the slats 15 are stacked in parallel. The angle can be adjusted so as not to be rotated in the state.
(4) Rotate the slat 15 in the fully closed direction at an angle of 2 × (X + Y) with respect to the sandwiching angle X + Y between the slat 15 and the center line C when the slat 15 is folded into the folding limit position, Next, at the operating time t2, the slat 15 is rotated at an angle of X + Y in the reverse fully closed direction. Then, the rotation angle of each slat 15 can be adjusted to an angle that does not allow the slat 15 to be rotated in a state where the slats 15 are stacked in parallel.
(5) When the angles of the slats 15 are aligned during the folding operation, prior to the operation of the induction motor 22, the angle of the slats 15 is determined with reference to the center line C of the hanger rail X + Y ≦ slat angle ≦ 180 degrees− It can be adjusted within the range of X + Y. Therefore, when the induction motor 22 is operated to transfer the slats, the slats 15 are not rotated after the slats 15 are stacked, so that an increase in the load on the induction motor 22 can be prevented. .
(6) Even if the angles of the slats 15 are not uniform during the convolution operation, if the angle difference does not exceed 2 × (X + Y), the angles of all the slats 15 are set with respect to the center line C of the hanger rail as X + Y ≦ The slat angle can be adjusted to the same angle in the range of ≦ 180 degrees−X + Y. Therefore, when the slats are transferred, the slats 15 do not rotate until adjacent runners come into contact with each other. Further, since the slats 15 are not rotated after the adjacent runners come into contact with each other and the slats 15 are stacked, an increase in the load on the induction motor 22 can be prevented.
(7) When the angles are not uniform during the convolution operation and the angle difference exceeds 2 × (X + Y), the adjacent slats 15 are separated from the rotation center of each slat 15 during the convolution operation, that is, Since the ends in the width direction are in contact with each other and turn in directions in which the angles are aligned, the load on the induction motor 22 is not greatly increased.
(8) Since the slat 15 is rotated in the fully closed direction at an angle of 2 × (X + Y), and then the slat 15 is rotated in the reverse fully closed direction at an angle of X + Y, the slat 15 is folded. The time required for the slat rotation operation prior to the folding operation can be reduced.

You may implement the said embodiment in the following aspects.
The slat 15 may be rotated in the reverse fully closed direction at an angle of 2 × (X + Y), and then the slat 15 may be rotated in the fully closed direction at an angle of X + Y.

  DESCRIPTION OF SYMBOLS 11 ... Hanger rail, 12 ... Lead runner, 13 ... Runner, 15 ... Slat, 22 ... Induction motor, 23 ... Tilt motor, 28 ... Control part, 30 ... Control part (microcomputer), C ... Centerline

Claims (9)

The slats are suspended and supported from a large number of runners that are movably supported on the hanger rails, and the runners are moved along the hanger rails by the driving force of the induction motor, and the slats are pulled out and folded. In the electric vertical blind that rotates the slat with the driving force of the tilting motor,
At the time of the folding operation of the slat, prior to the operation of the induction motor, a control unit that rotates the slat to an angle at which the slats stacked in parallel during the folding operation of the slat do not rotate is provided. Electric vertical blind control device.   When the minimum angle of the sandwiching angle between the slat at the folding limit position of the slat and the center line of the hanger rail is a first angle, the control unit has the slat before the operation of the induction motor. 2. The electric vertical blind control device according to claim 1, wherein the angle is rotated within a range of (first angle) ≦ slat angle ≦ 180 degrees− (first angle).   When the minimum angle of the sandwiching angle between the slat at the slat folding limit position and the center line of the hanger rail is the first angle, the control unit is configured to make the slat twice the first angle. 3. The electric vertical blind control device according to claim 2, wherein the control device is rotated in the forward direction and then rotated in the reverse direction at a first angle.   4. The electric vertical blind control device according to claim 2, wherein the control unit controls an operation time of the tilt motor to control a rotation angle of the slat.   5. The electric vertical blind control device according to claim 4, wherein the control unit includes a timer for controlling the operation time.   When the slat is folded, prior to the operation of the induction motor, the slat is rotated at an angle at which the slats stacked in parallel during the slat are not rotated. Method.   When the minimum angle between the slat and the center line of the hanger rail at the folding limit position of the slat is the first angle, the slat angle is set to (first) prior to the operation of the induction motor. The method of controlling an electric vertical blind according to claim 6, wherein the vertical blind is rotated within a range of (angle) ≦ slat angle ≦ 180 degrees− (first angle).   When the minimum angle between the slat and the center line of the hanger rail at the slat folding limit position is a first angle, the slat is rotated in the forward direction at an angle twice the first angle. 8. The method for controlling an electric vertical blind according to claim 7, wherein the electric vertical blind is rotated at a first angle in the opposite direction.   The method for controlling an electric vertical blind according to claim 7 or 8, wherein a rotation angle of the slat is controlled by controlling an operation time of a tilting motor.

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