JP5193847B2 - Vertical blind slat angle adjusting device and vertical blind slat adjusting method - Google Patents

Description

  The present invention relates to a slat angle control device for a vertical blind that makes it possible to adjust the angle of a slat in an arbitrary angle range.

  A vertical blind is a window in which slats are suspended and supported by a large number of runners moving in the hanger rails, and the angle of each slat drawn along the hanger rails is adjusted in the same phase by moving the runners by transfer means. The amount of light collected from outside can be adjusted.

  In such a vertical blind, when the slat is rotated in the fully closed direction, that is, in the direction along the hanger rail, both side ends of the slat are overlapped with adjacent slats to prevent leakage of external light. Accordingly, the rotation range of the slats is a range from a fully closed state in which each slat is rotated in a direction substantially along the hanger rail to a reverse fully closed state in which each slat is rotated approximately 180 degrees.

  In addition, electric vertical blinds have also been proposed in which the slats are rotated following the incident angle of the sun so as to allow the maximum amount of external light while blocking direct light (Patent Document 1, Patent Document 1). 2).

  However, after the slat is rotated to the fully closed direction, it cannot be rotated any further in the same direction. Therefore, the slat is rotated so as to track the sun from morning to daytime, and the slat is moved from daytime to evening. After turning over once, I try to track the sun again.

  In addition, the electric vertical type that controls the surface of the slat with different solar reflectances, for example, controls the surface with high reflectance facing outwards in summer and the surface with low reflectance facing outwards in winter. Blinds have also been proposed.

  Also in this case, as shown in FIG. 22 (a), the surface of the slat s is tracked toward the sun in the morning, and the slat s is almost fully closed at noon as shown in FIG. 22 (b). After rotating in the direction, the slat s cannot be further rotated in the same direction.

For this reason, in order to maintain the state where the surface of the slat s faces outward, the slat s is kept closed in the fully closed state from daytime to evening as shown in FIG.
A movable louver has also been proposed in which the louver can be rotated through 180 degrees or more, and the front or back surface of the louver can be arbitrarily selected and directed out of the window (see Patent Document 3).
JP-A-3-63381 JP 2006-28970 A Japanese Utility Model Publication No. 57-176599

  As described above, in the electric vertical blind that rotates the slats following the incident angle of the sun, it is necessary to invert the slats once in the morning to the evening. There is a problem that is inserted.

  When the slat surface and the back surface are formed with different solar reflectances, the slat s cannot be tracked and the slat s is fully closed as shown in FIG. Sometimes you can only hold it.

  Further, in order to track the sun, as shown in FIG. 23C, the back surface of the slat s needs to be directed out of the window. In this state, a required solar reflectance cannot be obtained. Insulation efficiency decreases in winter, and heat absorption efficiency decreases in winter.

  The object of the present invention is to make it possible to adjust the angle continuously to the angle of tracking the sun without reversing the slats while allowing the outside light to be blocked by overlapping both sides of adjacent slats in the fully closed state. An object of the present invention is to provide a blind slat angle adjusting device.

  In claim 1, when a plurality of slats are suspended and supported from a suspension frame so that the slats can be rotated in the same phase by a rotation device, and the slats are rotated in a fully closed direction. In a vertical blind in which both side portions of the slats overlap with adjacent slats, every other slat rotation device includes a rotation of adjacent slats at a position interfering with the rotation of adjacent slats. The interference prevention means which does not disturb is provided.

  According to a second aspect of the present invention, the rotating device includes a tilt shaft inserted through a runner that supports the slat in a suspended state, a worm that rotates based on rotation of the tilt shaft, and a worm that rotates based on rotation of the worm. The wheel includes a suspension shaft that rotates based on the rotation of the worm wheel, and the interference prevention unit includes a torsion coil spring interposed between the worm wheel and the suspension shaft.

  According to a third aspect of the present invention, the rotating device includes a runner that rotates the slats based on rotation of a tilt shaft, a first tilt shaft that is inserted into a runner that supports the odd-numbered slats, and an even-numbered slat. A second tilt shaft inserted through a runner that supports the suspension, and a motor that independently rotates the first and second tilt shafts, and the interference preventing means includes the odd-numbered slats and the even-numbered slats. When one slat of the stage slat is retracted to a position that does not interfere with the rotation of the other slat, the other slat is rotated, and when the other slat is rotated to a position that does not interfere with one slat, Control means for controlling the motor to rotate one of the slats is provided.

  According to a fourth aspect of the present invention, the control means is configured to calculate a target angle that blocks direct light between the odd-numbered slats and the even-numbered slats, and to maintain the target angle while maintaining the target angles. And a direct light blocking control unit for controlling the rotation angle.

  According to claim 5, when a large number of slats are rotated in the same phase, every other slat is brought into contact with the adjacent slats and rotated in the opposite direction at an angle that interferes with the rotation of the adjacent slats. When the angles do not interfere with each other, the adjacent slats are returned to the same phase angle.

  In claim 6, when the odd-stage slat and the even-stage slat are rotated in the same phase, one of the odd-stage slat and the even-stage slat is retracted to a position that does not interfere with the rotation of the other slat. Then, the other slat is rotated, and when the other slat is rotated to a position where it does not interfere with one slat, the other slat is rotated.

  According to a seventh aspect of the present invention, the target angle at which direct light is blocked by the odd-numbered slats and the even-numbered slats is calculated, and the rotation angles of the odd-numbered and even-numbered slats are controlled while maintaining the target angle.

  According to an eighth aspect of the present invention, one of the odd-numbered slats and the even-numbered slats is stopped at a position where it does not interfere with the rotation of the other slat, and the other slat is rotated to block direct light.

  According to a ninth aspect of the present invention, when the odd-numbered slats and the even-numbered slats interfere with each other, the slats are rotated to positions that do not interfere with each other, and then both slats are controlled to block direct light.

  According to the present invention, in the fully closed state, both sides of adjacent slats are overlapped so that external light can be blocked, and the angle can be continuously adjusted to the angle for tracking the sun without inverting the slats. A blind slat angle adjusting device can be provided.

(First embodiment)
1 to 7 show a first embodiment. In the vertical blind shown in FIG. 1, a number of runners 2 are supported in a hanger rail (hanging frame) 1 so as to be movable in the longitudinal direction of the hanger rail 1, and a slat 3 can be rotated from each runner 2. Suspended and supported.

  Each runner 2 is inserted with a tilt shaft 4 in which three splines are engraved, and both ends of the tilt shaft 4 are rotatably supported by both end portions of the hanger rail 1. When the tilt shaft 4 is rotated by the driving means, the suspension shaft 5 that is rotatably supported by the runner 2 is rotated, and the slat 3 that is suspended and supported by the suspension shaft 5 is rotated. It is like that.

  Examples of the driving means include a manual driving means for operating the operation code suspended from one end of the hanger rail 1 to rotationally drive the tilt shaft 4, or an electric driving means for rotationally driving the tilt shaft 4 with a motor.

  Further, a transfer means is connected to the leading runner, and when the leading runner is transferred through the hanger rail 1 by the transferring means, the subsequent runners 2 are sequentially pulled out at equal intervals, or the hanger rail 1 by the leading runner. Folded to one end of the.

  The transfer means is a manual transfer means that attaches a transfer cord routed in the hanger rail to the leading runner and that can be operated by hanging the transfer cord from one end of the hanger rail, or a screw inserted through the leading runner. There are manual transfer means for rotating the shaft-like transfer shaft with an operation cord, electric transfer means for rotating the transfer shaft with a motor, and the like.

  Each runner 2 has a first runner 2a in which the suspension shaft 5 is rotated in synchronization with the rotation of the tilt shaft 4, and the rotation of the tilt shaft 4 and the rotation of the suspension shaft 5 are not necessarily performed. The second runners 2b that are not synchronized are alternately arranged.

  FIG. 2 shows a specific configuration of the first runner 2a. The suspension shaft 5 is rotatably supported on the case 6 of the first runner 2a, and a worm wheel 7 is engraved on the outer peripheral surface of the intermediate portion of the suspension shaft 5. In the case 6, a worm 8 meshing with the worm wheel 7 is rotatably supported on the side of the worm wheel 7, and the tilt shaft 4 is inserted into the worm 8 so as not to rotate relative to the center of the worm 8. ing.

When the tilt shaft 4 is rotated, the worm 8 is rotated, and the suspension shaft 5 is rotated based on the rotation of the worm 8.
A spacer 9 is attached to the upper surface of the case 6. The spacer 9 has a known configuration that allows the royal runners following the head runner to be sequentially drawn at regular intervals when the runner is pulled out along the hanger rail 1 by the transfer means.

  FIG. 3 shows the second runner 2b. The second runner 2b includes a buffer mechanism between the worm 8 and the suspension shaft 5, so that the rotation of the worm 8 and the rotation of the suspension shaft 5 are not necessarily synchronized. The configuration other than the buffer mechanism is the same as that of the first runner 2a.

  The specific structure of the buffer mechanism will be described. As shown in FIGS. 4 and 5, a hook holder 10 is fitted on the upper end of the suspension shaft 5 so as not to rotate relative to the upper portion of the case 6. 10 and 10 are rotatably supported by the case 6.

  In the case, a wheel bearing 11, a worm wheel 12, and a torsion coil spring 13 are inserted into the suspension shaft 5 from below so as to be rotatable relative to the suspension shaft 5.

  The worm 8 is engaged with the worm wheel 12 and is rotated based on the rotation of the worm 8. The lower end of the torsion coil spring 13 is hooked on the worm wheel 12, and the upper end of the torsion coil spring 13 is hooked on the hook holder 10.

  Therefore, when a load that prevents the rotation of the slat 3 is not acting, the suspension shaft 5 is rotated via the worm wheel 12 and the torsion coil spring 13 based on the rotation of the worm 8.

  When a load that prevents the rotation of the slat 3 is acting on the slat 3, the worm wheel 12 is rotated based on the rotation of the worm 8, the torsion coil spring 13 is twisted and stored, and the suspension shaft 5 is not rotated.

Next, the operation of the vertical blind constructed as described above will be described with reference to FIGS.
In FIG. 6, the slats suspended and supported by the first runner 2a are odd-numbered slats 3a, and the slats supported by the second runner 2b are even-numbered slats 3b. When the tilt shaft 4 is rotated in one direction from the state in which each slat 3a, 3b is rotated in the fully open direction orthogonal to the hanger rail in step 1, as shown in steps 2-5, the odd and even stages The slats 3a and 3b are rotated in the same phase.

  When the tilt shaft 4 is further rotated in the same direction in step 5 and the tilt shaft 4 is further rotated in the same direction, the even-numbered slats 3b come into contact with the odd-numbered slats 3a and are prevented from rotating. Only the slat 3a is rotated. Then, as shown in steps 6 to 8, the even-numbered slat 3b is rotated by the rotation of the tilt shaft 4 and pushed by the odd-numbered slat 3a in the reverse direction, whereby the torsion coil spring 13 is stored. The

  When step 9 is reached, the odd-numbered slats 3a and even-numbered slats 3b are disengaged, and the biasing force of the torsion coil spring 13 causes the even-numbered slats 3b to rotate at the same angle as the odd-numbered slats 3a. Moved.

  Thereafter, the odd-numbered slats 3a and the even-numbered slats 3b are rotated in the same phase based on the rotation of the tilt shaft 4, and the slats 3a and 3b are rotated to the fully open direction from Step 10 to Step 11. Is done.

FIG. 7 shows a case where each slat 3a, 3b is rotated in the direction opposite to the rotation direction shown in FIG. 6 from the fully opened state.
When the tilt shaft 4 is rotated to the other side, the odd-numbered and even-numbered slats 3a and 3b are rotated in the same phase as shown in steps 13-16.

  When the tilt shaft 4 is rotated in the fully closed direction in step 16 and the tilt shaft 4 is further rotated in the same direction, the even-numbered slats 3b come into contact with the odd-numbered slats 3a and are prevented from rotating. Only the slat 3a is rotated. Then, as shown in steps 17 to 19, the even-numbered slat 3 b is rotated by the rotation of the tilt shaft 4 and pushed by the odd-numbered slat 3 a and rotated in the reverse direction, whereby the torsion coil spring 13 is stored. The

  When step 20 is reached, the odd-numbered slats 3a and even-numbered slats 3b are disengaged, and the biasing force of the torsion coil spring 13 causes the even-numbered slats 3b to rotate at the same angle as the odd-numbered slats 3a. Moved.

  Thereafter, the odd-numbered slats 3a and the even-numbered slats 3b are rotated in the same phase based on the rotation of the tilt shaft 4, and the process proceeds from step 21 to step 22, where each slat 3a, 3b is rotated to the fully open direction. Is done.

With the vertical blind as described above, the following operational effects can be obtained.
(1) The slats 3a and 3b can be rotated 360 degrees in the same direction. Further, from the state in which the slats 3a and 3b are rotated in the fully open direction, the slats 3a and 3b are rotated 180 degrees in any direction, and are rotated until the slats 3a and 3b are fully opened again through the fully closed state. it can.
(2) The slats 3a and 3b can be rotated in either direction from the state in which the slats 3a and 3b are fully closed. Therefore, when adjusting the angles of the slats 3a and 3b so as to track the sun from morning to evening, there is no need to reverse the slats halfway.
(3) When adjusting the angles of the slats 3a and 3b so as to track the sun from morning to evening, it is not necessary to invert the slats on the way, so that direct light insertion can be reliably prevented.
(4) When the slats 3a and 3b are rotated to the fully closed state, the side portions of the adjacent slats 3a and 3b overlap each other, so that light leakage when fully closed can be prevented.
(5) The angle of the slats 3a and 3b can be adjusted so as to track the sun while keeping arbitrary surfaces of the slats 3a and 3b facing the outside of the window.
(Second embodiment)
8 to 21 show a second embodiment. This embodiment discloses a control device that enables tracking of the sun while preventing insertion of direct light in an electric vertical blind that performs a slat rotation operation with a driving force of a motor.

  FIG. 8 shows the mechanical configuration of the control device for the electric vertical blind according to this embodiment. A first tilt shaft 21a and a second tilt shaft 21b are rotatably supported in the hanger rail. The first tilt shaft 21a is inserted into the worm 23a of the odd-numbered runner 22a that supports the odd-numbered slat 3a in a suspended manner, and when the first tilt shaft 21a is rotated, the odd-numbered slat 3a is rotated.

  The second tilt shaft 21b is inserted into the worm 23b of the even-numbered runner 22b that suspends and supports the even-numbered slat 3b. When the second tilt shaft 21b is rotated, the even-numbered slat 3b is rotated.

  The first tilt shaft 21a is rotationally driven by an odd-numbered motor 24a disposed in the hanger rail, and the rotation angle of the first tilt shaft 21a is detected by the first encoder 25a.

  The second tilt shaft 21b is rotationally driven by an even-numbered motor 24b disposed in the hanger rail, and the rotation angle of the second tilt shaft 21b is detected by a second encoder 25b. The first and second tilt shafts 1a and 21b are connected to the output shafts of the motors 24a and 24b via the connecting tools 26a and 26b.

  Further, a transfer shaft (not shown) that is rotationally driven by an induction motor disposed in the hanger rail is inserted into the odd-numbered runner 22a and the even-numbered runner 22b, and the leading runner is based on the rotation of the transfer shaft. Move along the clothes rail. Then, the following runner is pulled out along the hanger rail by the movement of the leading runner, or is folded to one end side of the hanger rail.

  FIG. 9 shows an electrical configuration of the control device for the electric vertical blind. In the figure, except for a central control unit (arithmetic unit) 27 constituted by a personal computer or the like, it is housed in a hanger rail of an electric vertical blind.

The central control unit 27 includes a memory that stores in advance the altitude and azimuth data of the sun corresponding to the date and time.
The microcomputer (interference prevention means, control means, direct light blocking control section) 28 detects a preset program, control information input from the central control device 27 via the communication section 29, and motor operation. The motor drive circuit 30 is controlled by operating based on detection information and the like. The memory 34 connected to the microcomputer 28 stores the program and the processing data of the microcomputer 28 temporarily.

  The motor driving circuit 30 controls the odd-numbered stage motor 24 a, the even-numbered stage motor 24 b and the induction motor 32 via the relay 31. The odd-stage motor 24 a, the even-stage motor 24 b, and the induction motor 32 are time-division controlled by a common motor drive circuit 30 by a relay 31 that is controlled to open and close by the microcomputer 28.

  The rotation angles of the first and second tilt shafts 21a and 21b due to the operations of the odd-numbered stage motor 24a and the even-numbered stage motor 24b are detected by the first and second encoders 25a and 25b, and the detected signals are sent to the microcomputer 28. Is output.

  When the leading runner is folded to the maximum folding position by the operation of the induction motor 32, the first limit switch 33a outputs a detection signal for detecting the leading runner to the microcomputer 28.

  When the leading runner is pulled out to the maximum pulling position by the operation of the induction motor 32, the second limit switch 33b outputs a detection signal for detecting the leading runner to the microcomputer 28.

  Next, the control operation of the electric vertical blind as described above will be described. The basic operation of the electric vertical blind is to control the odd-numbered stage slats 3a and even-numbered stage slats 3b independently to track the sun and to allow outside light to be taken in while preventing direct light from being inserted. Adjust the angles of 3a and 3b. At the same time, as in the first embodiment, each slat 3a, 3b can be rotated 360 degrees in either direction, and in order to realize this operation, the odd-numbered slat 3b can be rotated. In order to prevent interference, control is performed such that the even-stage slats 3b are retracted outside the rotation range of the odd-stage slats 3a.

[First control action]
The first control operation controls the turning operation of the odd-numbered slats 3a and the even-numbered slats 3b so as to incorporate outside light while tracking the sun and preventing direct light from being inserted. And when both slats 3a and 3b interfere, in the state which retracted the even number stage slat 3b to the position which does not interfere with the odd number stage slat 3a, it controls so that the odd number stage slat 3a is rotated and direct light is interrupted | blocked .

  FIG. 10 shows the operation of the central controller 27 during the first control operation. The central controller 27 first captures the illuminance value, and determines whether or not the illuminance value is equal to or greater than a reference value, that is, whether or not direct light is present (steps 31 and 32). The illuminance value is determined based on a detection signal from an illuminometer installed on the rooftop of the building.

  Next, the central control unit 27 reads the sun direction from the memory (step 33), and reads the angle B at which the odd-numbered slats 3a and even-numbered slats 3b interfere from the memory (step 34).

  Next, the central control unit 27 calculates an angle A at which the odd-numbered slats 3a can block direct light based on the sun direction and the angle B at which the odd-numbered slats 3a and even-numbered slats 3b interfere (step 35). ). The angle B is, for example, the angle B of the even-numbered slat 3b in step 204 shown in FIG. 19, and the angle A is the angle A of the odd-numbered slat 3a.

  Next, the central controller 27 determines whether or not the angle A is larger than the angle B (step 36). If the angle A is larger than the angle B, the odd-numbered slats 3a and the even-numbered slats 3b interfere with each other. It is determined whether the angle is an angle to be used (step 37).

  When the angle B is an angle at which the odd-numbered slats 3a and the even-numbered slats 3b interfere with each other, the angle A is the target angle (target position) of the odd-numbered slats 3a and the angle B is the target angle of the even-numbered slats 3b. (Target position) is output to the microcomputer 28 (step 38), and the process returns to step 31.

  In step 37, if the angle B is not an angle at which the odd-numbered slats 3a and even-numbered slats 3b interfere with each other, the process proceeds to step 39 to set the angle A as the target angle of the odd-numbered slats 3a and even-numbered slats 3b. The data is output to the microcomputer 28 and the process returns to step 31.

  If the angle A is not larger than the angle B in step 36, the process proceeds to step 40, where the angle A is output to the microcomputer 28 as the target angles of the odd-numbered slats 3a and even-numbered slats 3b, and the process returns to step 31. To do.

  If the illuminance value does not reach the reference value in step 32, that is, if there is no direct light due to cloudy weather or the like, a preset angle C is read from the memory (step 41), and the angle C is set to an odd-numbered slat. The target angles of 3a and even-stage slats 3b are output to the microcomputer 28 (step 42), and the process returns to step 31.

  11 to 14 show the control operation of the microcomputer 28 that performs the first control operation. When the microcomputer 28 receives the operation command signal from the central controller 27, the microcomputer 28 determines whether or not the slats 3a and 3b interfere when the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the target angle. (Steps 51 and 52).

  Next, it is determined whether or not the operation cannot be performed unless the even-stage slats 3b are retracted from the track of the odd-stage slats 3a (step 53). 3b is retracted to a position where it does not interfere with the odd-numbered slats 3a (step 54).

  After the even-stage slat 3b is retracted, the even-stage motor 24b is stopped (step 55), the odd-stage motor 24a is operated to rotate the odd-stage slat 3a to the target angle, and then the odd-stage motor 24a is stopped. (Steps 56, 57, 58).

  Next, the even-stage motor 24b is operated to rotate the even-stage slat 3b to the target angle, and then the even-stage motor 24b is stopped (steps 59, 60, 61), and the operation is finished.

  If it is determined in step 53 that the odd-numbered slat 3a can be rotated without retracting the even-numbered slat 3b from the track of the odd-numbered slat 3a, the process moves to step 62 and the target position of the even-numbered slat 3b is odd. It is determined whether or not it interferes with the rotation trajectory of the step slat 3a.

  If the target position of the even-numbered slat 3b interferes with the rotation trajectory of the odd-numbered slat 3a, the process proceeds to step 63 to operate the odd-numbered motor 24a and the even-numbered motor 24b. When the even-stage slat 3b is rotated to a position where it interferes with the rotation locus of the odd-stage slat 3a, the even-stage motor 24b is stopped (steps 64 and 65), and then the odd-stage slat 3a rotates to the target position. Then, the odd-numbered motor 24a is stopped (steps 67 and 68), and the operation is finished.

  In step 62, when the target position of the even-numbered slat 3b does not interfere with the rotation trajectory of the odd-numbered slat 3a, the process proceeds to step 69 to operate the odd-numbered motor 24a and the even-numbered motor 24b. Then, the same operations as in steps 63 to 68 are performed in steps 70 to 74, the even-numbered stage motor 24b is operated again to rotate the even-numbered stage slat 3b to the target position (steps 75 to 77), and the operation is finished. .

  In step 52, when the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the target angle, if both the slats 3a and 3b do not interfere with each other, the process proceeds to step 78, where the odd-numbered motor 24a and the even-numbered motor 24b is activated.

  When the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the target positions, the operations of the odd-numbered motor 24a and the even-numbered motor 24b are stopped (steps 78 to 83).

  The first control operation as described above will be described with reference to FIG. Step 201 shows a state in which insertion of direct light is blocked while both the odd-numbered stage slats 3a and the even-numbered stage slats 3b are opened. When the azimuth angle of the sun changes from this state, as shown in step 202, the odd-numbered slats 3a and even-numbered slats 3b are rotated by a command signal from the central control device 27 to block direct light.

  When the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the angle shown in step 203 due to the change in the azimuth angle of the sun, the even-numbered slats 3b are rotated to the rotation trajectory of the odd-numbered slats 3a.

Then, as shown in steps 204 to 208, the odd-numbered slats 3a are rotated in a state where the rotation operation of the even-numbered slats 3b is stopped, thereby preventing direct light from being inserted.
When the odd-numbered slats 3a deviate from the turning trajectory of the even-numbered slats 3b, as shown in steps 209 and 210, the even-numbered slats 3b are rotated to the same angle as the odd-numbered slats 3a. Control is performed to block direct light at 3b (step 211).

[Second control action]
The second control operation controls the rotating operation of the odd-numbered slats 3a and the even-numbered slats 3b so as to incorporate outside light while tracking the sun and preventing direct light from being inserted. When the slats 3a and 3b interfere with each other, the even-numbered slats 3b and the odd-numbered slats 3a are rotated to a position where they do not interfere, and then the odd-numbered slats 3a and even-numbered slats 3b are rotated to block direct light. To control.

  FIG. 15 shows the operation of the central controller 27 during the second control operation. Steps 101 to 103 are the same as steps 31 to 33 shown in FIG. In step 104, the angle E of the odd-numbered slats 3a and even-numbered slats 3b for blocking direct light is output to the microcomputer as a target angle, and the process returns to step 101.

Further, the operations in steps 106 and 107 are the same as those in steps 41 and 42 shown in FIG.
16 to 18 show the control operation of the microcomputer 28 that performs the second control operation. When the microcomputer 28 receives the operation command signal from the central controller 27, the microcomputer 28 determines whether or not the slats 3a and 3b interfere when the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the target angle. (Steps 111 and 112).

  Next, it is determined whether the even-stage slat 3b cannot be operated unless it is retracted from the track of the odd-stage slat 3a (step 113). If it is necessary to retract, the even-stage motor 24b is operated to operate the even-stage slat 3b. 3b is retracted to a position where it does not interfere with the odd-numbered slats 3a (steps 114 and 115).

  After the even-stage slat 3b is retracted, the even-stage motor 24b is stopped (step 116), the odd-stage motor 24a is operated to rotate the odd-stage slat 3a to the target angle, and then the odd-stage motor 24a is stopped. (Steps 117-119).

  Next, the even-stage motor 24b is operated to rotate the even-stage slat 3b to the target angle, and then the even-stage motor 24b is stopped (steps 120 to 122) to complete the operation.

  If it is determined in step 113 that the odd-numbered slat 3a can be rotated without retracting the even-numbered slat 3b from the track of the odd-numbered slat 3a, the process proceeds to step 123 and the odd-numbered motor 24a and the even-numbered motor 24b are moved. Is activated. When the even-stage slat 3b is rotated to a position where it interferes with the rotation locus of the odd-stage slat 3a, the even-stage motor 24b is stopped (steps 124 and 125), and then the odd-stage slat 3a rotates to the target position. Is moved (step 126), and then the odd-numbered motor 24a is stopped (steps 127 and 128).

Next, the even-numbered stage motor 24b is operated, the even-numbered-stage slat 3b is rotated to the target position to stop the even-numbered stage motor 24b (steps 129 to 131), and the operation is finished.
In step 112, when both the slats 3a and 3b do not interfere when the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the target angle, the process proceeds to step 132, where the odd-numbered motors 24a and the even-numbered motors 24a. The motor 24b is operated.

  When the odd-numbered stage slats 3a and the even-numbered stage slats 3b are rotated to the target position, the operations of the odd-numbered stage motor 24a and the even-numbered stage motor 24b are stopped (steps 133 to 137), and the operation is terminated.

  The second control operation as described above will be described with reference to FIG. Step 221 shows a state in which the insertion of direct light is blocked while both the odd-numbered stage slats 3a and the even-numbered stage slats 3b are opened. When the azimuth angle of the sun changes from this state, as shown in step 222, the odd-numbered slats 3a and even-numbered slats 3b are rotated by a command signal from the central control device 27 to block direct light.

  When the odd-numbered slats 3a and the even-numbered slats 3b are rotated to the angle shown in step 223 due to the change in the azimuth angle of the sun, the even-numbered slats 3b are rotated to the rotation trajectory of the odd-numbered slats 3a.

Then, as shown in steps 224 to 228, the odd-numbered slats 3 a are continuously rotated while the rotation operation of the even-numbered slats 3 b is stopped.
When the odd-numbered slats 3a deviate from the rotation trajectory of the even-numbered slats 3b, as shown in steps 229 and 230, the even-numbered slats 3b are rotated to the same angle as the odd-numbered slats 3a. The direct light is controlled to be blocked by 3b (step 231).

  FIG. 21 shows a case where the odd-numbered slats 3a and even-numbered slats 3b are rotated in the direction opposite to the rotation direction shown in FIG. Steps 241 to 249 operate similarly to steps 221 to 231 shown in FIG.

  Therefore, in the control operation shown in FIG. 20, if a white surface having a high heat reflectance is directed to the outside of the window, direct light can be controlled while improving heat insulation in the summer, and the control operation shown in FIG. If, for example, the black back surface having a low thermal reflectance is directed outside the window, direct light can be controlled while improving the heating effect in winter.

In the electric vertical blind constructed as described above, the following operational effects can be obtained.
(1) When the even-stage slat 3b interferes with the rotation of the odd-stage slat 3a, the odd-stage slat 3a is rotated in a state where the even-stage slat 3b is retracted to a position not interfering with the odd-stage slat 3a. The even-numbered slats 3b are rotated after the odd-numbered slats 3a are rotated to a position where they do not interfere with the rotation of the even-numbered slats 3b. Therefore, the odd-stage slats 3a and the even-stage slats 3b can be rotated 360 degrees in any direction without interfering with each other.
(2) Insertion of direct light can be prevented while rotating the odd-numbered slats 3a and the even-numbered slats 3b without interfering with each other.
(3) Adjusting the angles of the slats 3a and 3b so as to track the sun and blocking direct light while keeping the front and back surfaces of the odd-numbered slats 3a and even-numbered slats 3b facing the outside of the window. be able to.
(4) In the first control operation, it is possible to block the direct light by rotating the odd-numbered slats 3a while stopping the even-numbered slats 3b at positions that do not interfere with the rotation of the odd-numbered slats 3a.
(5) In the second control operation, when the even-numbered slat 3b interferes with the rotation of the odd-numbered slat 3a, the even-numbered motor 24b is stopped at a position that does not interfere with the rotation of the odd-numbered slat 3a. 3a is rotated, and then the even-stage slat 3b is rotated to the target position. Therefore, direct light can be blocked while preventing interference between the odd-numbered slats 3a and the even-numbered slats 3b.

You may implement the said embodiment in the following aspects.
In the second embodiment, the operation of the odd-numbered slats 3a and the operation of the even-numbered slats 3b may be interchanged.
A motor drive circuit 30 may be provided for each motor.

It is a side view which shows the vertical blind of 1st embodiment. (A) (b) (c) is sectional drawing which shows a 1st runner. It is sectional drawing which shows a 2nd runner. It is sectional drawing which shows the interference prevention means of a 2nd runner. It is a disassembled perspective view which shows the interference prevention means of a 2nd runner. It is explanatory drawing which shows operation | movement of 1st embodiment. It is explanatory drawing which shows the slat rotation operation | movement of 1st embodiment. It is a top view which shows the mechanical structure of 2nd embodiment. It is a block diagram which shows the electric constitution of 2nd embodiment. It is a flowchart which shows the 1st control action of 2nd embodiment. It is a flowchart which shows the 1st control action of 2nd embodiment. It is a flowchart which shows the 1st control action of 2nd embodiment. It is a flowchart which shows the 1st control action of 2nd embodiment. It is a flowchart which shows the 1st control action of 2nd embodiment. It is a flowchart which shows the 2nd control action of 2nd embodiment. It is a flowchart which shows the 2nd control action of 2nd embodiment. It is a flowchart which shows the 2nd control action of 2nd embodiment. It is a flowchart which shows the 2nd control action of 2nd embodiment. It is explanatory drawing which shows the slat rotation operation | movement of 2nd embodiment. It is explanatory drawing which shows the slat rotation operation | movement of 2nd embodiment. It is explanatory drawing which shows the slat rotation operation | movement of 2nd embodiment. (A) (b) (c) is explanatory drawing which shows the slat rotation operation | movement of a prior art example. (A) (b) (c) is explanatory drawing which shows the slat rotation operation | movement of a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Hanging frame (hanger rail), 2a, 2b ... Runner, 3 ... Slat, 3a ... Odd stage slat, 3b ... Even stage slat, 4 ... Tilt axis, 5 ... Rotating device (hanging axis), 7 ... Rotating device (worm wheel), 8 ... Rotating device (worm), 13 ... Interference prevention means (torsion coil spring), 27 ... Calculation unit (central controller), 28 ... Interference prevention means, control means, direct radiation Light blocking control unit (microcomputer), 24a: odd-numbered stage motor, 24b: even-numbered stage motor.

Claims (9)

A large number of slats are suspended and supported from a suspension frame, and the slats can be rotated in the same phase by a rotation device. When the slats are rotated in the fully closed direction, both sides of the slats In vertical blinds that overlap with adjacent slats,
The slat angle of the vertical blind, characterized in that every other slat rotation device is provided with interference blocking means that does not prevent the rotation of the adjacent slats at a position that interferes with the rotation of the adjacent slats. Adjusting device. The rotating device is
A tilt shaft inserted through a runner that supports the slats suspended;
A worm that rotates based on rotation of the tilt axis;
A worm wheel that rotates based on the rotation of the worm;
A suspension shaft that rotates based on the rotation of the worm wheel,
The interference prevention means includes
The vertical blind slat angle adjusting device according to claim 1, further comprising a torsion coil spring interposed between the worm wheel and the suspension shaft. The rotating device is
A runner for rotating the slats based on rotation of a tilt axis;
A first tilt shaft inserted through a runner that supports the odd-numbered slats suspended;
A second tilt axis inserted through a runner that supports the even-numbered slats suspended;
A motor that independently rotates the first and second tilt axes;
The interference prevention means includes
Rotate the other slat in a state where one slat of the odd-numbered slat and the even-numbered slat is retracted to a position where it does not interfere with the rotation of the other slat, and the other slat does not interfere with one slat. 2. The slat angle adjusting device for a vertical blind according to claim 1, further comprising control means for controlling the motor so as to rotate one of the slats when the slat is rotated. The control means includes
A calculation unit for calculating a target angle for blocking direct light at the odd-numbered slats and the even-numbered slats;
4. The slat angle adjusting device for a vertical blind according to claim 3, further comprising a direct light blocking control unit that controls a rotation angle of the odd-numbered slats and the even-numbered slats while maintaining the target angle. .   When rotating a large number of slats in the same phase, rotate the slats in the opposite direction by contacting the adjacent slats at an angle that interferes with the rotation of adjacent slats. A method for adjusting the slat angle of a vertical blind, wherein adjacent slats are returned to the same phase angle.   When the odd-numbered slat and the even-numbered slat are rotated in the same phase, one of the odd-numbered slat and the even-numbered slat is retracted to a position that does not interfere with the rotation of the other slat. A method for adjusting a slat angle of a vertical blind, wherein the slat is rotated when the other slat is rotated to a position where it does not interfere with one slat.   The odd-numbered slats and even-numbered slats calculate a target angle for blocking direct light, and the rotation angles of the odd-numbered and even-numbered slats are controlled while maintaining the target angle. 6. A method for adjusting a slat angle of a vertical blind according to claim 6.   The direct light is blocked by rotating the other slat in a state where one slat of the odd-numbered slat and the even-numbered slat is stopped at a position not interfering with the rotation of the other slat. 8. A method for adjusting a slat angle of a vertical blind according to claim 7.   8. The direct light is cut off by controlling both slats after rotating the slats to a position where they do not interfere with each other when the odd-numbered and even-numbered slats interfere with each other. Slat angle adjustment method for vertical blinds.

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