Vertical blind

Abstract

To provide a vertical blind that appropriately prevents light leakage when adjusting the tilt angle of slats that are alternately suspended and supported and have different rotation speeds by using an external operation terminal such as a remote controller.SOLUTION: A vertical blind 1 includes a receiving unit 13 that receives an angle adjustment signal for adjusting the tilt angle of slats with different rotation speeds from an external operation terminal, a tilt encoder 5b that detects the amount of rotation of the tilt shaft that rotates the slats, a tilt angle detection unit 10d that detects the tilt angle of the slats, a tilt angle control unit 10e that automatically controls the rotation of the slats regardless of the content of the angle adjustment signal when the tilt angle is greater than or equal to a predetermined angle, while controlling the rotation of the slats according to the angle adjustment signal when the tilt angle is less than the predetermined angle, and a motor drive unit 10c that rotates the tilt shaft based on the control signal from the tilt angle control unit 10e.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a vertical blind having slats with different rotational speeds that are alternately suspended and supported. In particular, it relates to a vertical blind in which the tilt angle of the slats can be electrically adjusted using an external operation terminal such as a remote control.

Background Art

[0002] In a vertical blind, a number of runners that are movably supported within a hanger rail each have a slat that is suspended and supported such that the angle can be adjusted. In a general vertical blind, the slats are pulled out along the hanger rail, and the amount of sunlight entering the room is adjusted by manually or electrically adjusting the angle of the slats.

[0003] For the slats of a vertical blind, a drape fabric having light-shielding properties or a lace fabric having semi-transparency is used. The slats are composed of a first slat and a second slat, and a speed conversion means for rotating these first slat and second slat at different rotational speeds is provided (see, for example, Patent Document 1).

[0004] In addition, a vertical blind in which a first slat having light-shielding properties and a second slat having semi-transparency are alternately suspended and supported from each runner and are set to have different gear ratios is also disclosed (see, for example, Patent Document 2). In the vertical blind shown in this Patent Document 2, between the gear mechanism of the runner that suspends and supports a slat with a large rotation angle amount and the suspension shaft, a torque transmission mechanism that transmits a rotational torque of a predetermined value or less and does not transmit a rotational torque of a predetermined value or more by idling is provided.

Prior Art Documents

Patent Document

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in a vertical blind having slats with different rotational speeds as described above, when adjusting the angle of the slats, there is a problem that a gap is generated between the slats and light leakage occurs. This will be described with reference to FIG. 15.

[0007] In FIG. 15, a first slat 20a having light-shielding properties and a second slat 20b having semi-transparency are alternately suspended and supported, and it is assumed that the rotational speed of the first slat 20a is twice the rotational speed of the second slat 20b. Also, the rotational angles of the slats 20a and 20b are electrically adjusted remotely using a remote control 21.

[0008] First, step 111 shows the fully closed state where the first slat 20a and the second slat 20b are closed, and rotates clockwise upon receiving control to open the slats 20a and 20b. Step 112 shows the state where the first slat 20a is rotated by 35 degrees and the second slat 20b is rotated by 17.5 degrees. Step 113 shows the state where the first slat 20a is rotated by a total of 90 degrees and the second slat 20b is rotated by a total of 45 degrees from step 112. Step 114 shows the state where the first slat 20a further rotates by 20 degrees while pushing the second slat 20b from step 113. ​​​​​​​​Rotate the first slat 20a by 110 degrees and further rotate the second slat 20b by 25 degrees (total 70 degrees) so that the ends of the adjacent first slat 20a and the ends of the second slat 20b are in contact, indicating the "open" state. The step 115 shows the state where, starting from step 114, with the first slat 20a and the second slat 20b in contact, the first slat 20a is further rotated by 25 degrees (total 135 degrees) and the second slat 20b is further rotated by 20 degrees (total 90 degrees) to reach a predetermined angle.

[0009] Here, in the state of step 115, it is assumed that the user remotely operates the slats 20 a and 20b in the opposite direction (counterclockwise) using a remote control or the like. However, if the rotation direction is reversed from the state of step 115, as shown in step 116, a gap will occur between the first slat 20a and the second slat 20b, resulting in light leakage. And if the reverse rotation continues from the state of step 116, as in step 117, the gap will become even larger. That is, when the tilt angle of the slats 20a and 20b exceeds a certain angle and then the rotation of the slats 20a and 20b is reversed, a state where the gap between the slats 20a and 20b becomes prominent will occur, which becomes a problem. Also, when light leakage occurs, the indoor lighting adjustment cannot be properly performed, and the inside of the room can be seen from the outside.

[0010] The present invention has been made in view of the above problems, and when adjusting the tilt angles of slats that are alternately suspended and supported and have different rotation speeds using an external operation terminal such as a remote control, it is an object of the present invention to provide a vertical blind that appropriately prevents light leakage.

Means for Solving the Problems

[0012] ​​​​​​​​In order to achieve the above object, the present invention provides a vertical blind in which a first slat and a second slat that rotate at different rotational speeds are alternately suspended and supported by a plurality of runners movably supported within a hanger rail, the vertical blind comprising: a receiving unit that receives an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal; a tilt shaft rotation amount detection unit that detects the rotation amount of a tilt shaft for rotating the first slat and the second slat; a tilt angle detection unit that detects the tilt angles of the first slat and the second slat based on a rotation amount detection signal from the tilt shaft rotation amount detection unit; a tilt angle control unit that automatically controls the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat are equal to or greater than a predetermined angle; and a motor drive unit that rotates the tilt shaft based on a control signal from the tilt angle control unit. In the automatic control in the tilt angle control unit, the rotation of the first slat and the second slat is continuously controlled until it is reversely fully closed or fully closed. The predetermined angle is an angle that is set in advance after the first slat and the second slat come into contact, or the angle when the first slat and the second slat come into contact. It is characterized by the above.

[0013] In this vertical blind, when the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal received by the receiving unit. When the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal received by the receiving unit. When the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal received by the receiving unit. When the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal received by the receiving unit. When the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal received by the receiving unit.

[0014] In this vertical blind, when the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal. In this vertical blind, when the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal. In this vertical blind, when the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal. In this vertical blind, when the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal. In this vertical blind, when the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is equal to or greater than a predetermined angle, it is preferable to automatically control the rotation of the first slat and the second slat regardless of the content of the angle adjustment signal.

[0017] In this vertical blind, the automatic control in the tilt angle control unit is control for accelerating the rotation of the first slat and the second slat, and the predetermined angle is preferably an angle set in advance after the first slat and the second slat come into contact with each other, or an angle when the first slat comes into contact with the second slat.

[0018] In this vertical blind, the first slat is a light-shielding drapery fabric, and the second slat is a semi-transparent lace fabric. Preferably, the rotation speed of the first slat is faster than that of the second slat.

[0019] In this vertical blind, after the first slat comes into contact with the second slat, the second slat preferably rotates while coming into contact with the first slat along with the rotation speed of the first slat.

[0020] To achieve the above object, the present invention provides a slat control method for a vertical blind in which a first slat and a second slat that rotate at different rotational speeds are alternately suspended and supported by a plurality of runners movably supported within a hanger rail, the method including: a receiving step of receiving an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal; a tilt shaft rotation amount detection step of detecting the rotation amount of a tilt shaft that rotates the first slat and the second slat; a tilt angle detection step of detecting the tilt angles of the first slat and the second slat based on a rotation amount detection signal in the tilt shaft rotation amount detection step; a tilt angle control step of automatically controlling the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat are equal to or greater than a predetermined angle; and a motor drive step of rotating the tilt shaft based on a control signal in the tilt angle control step. In the automatic control in the tilt angle control step, the rotation of the first slat and the second slat is continuously controlled until it is reversely fully closed or fully closed. The predetermined angle is an angle that is set in advance after the first slat and the second slat come into contact, or the angle when the first slat and the second slat come into contact. Characterized by the above.

[0021] To achieve the above object, the present invention provides a control for a vertical blind in which a first slat and a second slat that rotate at different rotational speeds are alternately suspended and supported by a plurality of runners movably supported within a hanger rail Executed by a computer for program, the program including: a receiving step of receiving an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal; a tilt shaft rotation amount detection step of detecting the rotation amount of a tilt shaft that rotates the first slat and the second slat; a tilt angle detection step of detecting the tilt angles of the first slat and the second slat based on a rotation amount detection signal in the tilt shaft rotation amount detection step; a tilt angle control step of automatically controlling the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat are equal to or greater than a predetermined angle; and a motor drive step of rotating the tilt shaft based on a control signal in the tilt angle control step. In the automatic control in the tilt angle control step, the rotation of the first slat and the second slat is continuously controlled until it is reversely fully closed or fully closed. The predetermined angle is an angle that is set in advance after the first slat and the second slat come into contact, or the angle when the first slat and the second slat come into contact. Characterized by the above.

Effect of the Invention

[0022] The vertical blind 1 according to the present invention is a tilt of slats with different rotation speeds from an external operation terminal A receiving unit that receives an angle adjustment signal for adjusting the angle of the slat, and a tilt shaft that rotates the slat A tilt encoder that detects the rotation amount of the shaft, and a tilt angle that detects the tilt angle of the slat When the tilt angle is less than a predetermined angle, the rotation of the slat is controlled according to the angle adjustment signal On the other hand, when the tilt angle is greater than or equal to the predetermined angle, the slat rotates regardless of the content of the angle adjustment signal A tilt angle control unit that automatically controls the rotation, and a motor drive unit that rotates the tilt shaft based on a control signal from the tilt angle control unit It is provided with. With this configuration, the vertical blind according to the present invention can appropriately prevent leakage from occurring.

Brief Explanation of Drawings

Brief Explanation of Drawings

[0023]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Figure 18

Figure 19

Embodiments for Carrying Out the Invention

[0024] Hereinafter, the vertical blind according to each embodiment of the present invention will be described with reference to the drawings. .

[0025] (Embodiment 1) First, with reference to FIGS. 1 and 2, the structure of the vertical blind according to Embodiment 1 of the present invention will be described. The vertical blind 1 includes a hanger rail 2 horizontally attached to a ceiling surface or the like, a runner 3 movably supported within the hanger rail 2, and first slats 4a and second slats 4b suspended and supported by the runner 3. The first slats 4a are made of, for example, a drape fabric having light-shielding properties, and the second slats 4b are made of, for example, a lace fabric having semi-transparency that allows some light to pass through. The first slats 4a and the second slats 4b are alternately suspended and supported by the runner 3. Each runner 3 is formed with an insertion hole 3a through which a tilt shaft 5 having three splines engraved thereon is rotatably inserted. Both ends of the tilt shaft 5 are rotatably supported in a horizontal direction by end caps 2a and 2b attached to both ends of the hanger rail 2. Each runner 3 is rotatably supported by a suspension shaft 6 that suspends and supports the first slats 4a and the second slats 4b, and a hook 7 is provided at the lower end of the suspension shaft 6. The first slats 4a and the second slats 4b are attached to the hook 7 via a slat hanger (not shown).

[0026] A tilt motor 5a for rotating the tilt shaft 5 is built into one end side of the hanger rail 2. When the tilt motor 5a is rotated, the tilt shaft 5 is rotated via a gear mechanism (not shown) disposed within the end cap 2a. Then, due to the rotation of the tilt shaft 5 The first slats 4a are made of, for example, a drape fabric having light-shielding properties, and the second slats 4b are made of, for example, a lace fabric having semi-transparency that allows some light to pass through. The first slats 4a and the second slats 4b are alternately suspended and supported by the runner 3. The first slats 4a and the second slats 4b are alternately suspended and supported by the runner 3.

[0027] Each runner 3 is formed with an insertion hole 3a through which a tilt shaft 5 having three splines engraved thereon is rotatably inserted. Both ends of the tilt shaft 5 are rotatably supported in a horizontal direction by end caps 2a and 2b attached to both ends of the hanger rail 2. Each runner 3 is formed with an insertion hole 3a through which a tilt shaft 5 having three splines engraved thereon is rotatably inserted. Both ends of the tilt shaft 5 are rotatably supported in a horizontal direction by end caps 2a and 2b attached to both ends of the hanger rail 2. Both ends of the tilt shaft 5 are rotatably supported in a horizontal direction by end caps 2a and 2b attached to both ends of the hanger rail 2.

[0028] Each runner 3 is rotatably supported by a suspension shaft 6 that suspends and supports the first slats 4a and the second slats 4b, and a hook 7 is provided at the lower end of the suspension shaft 6. The first slats 4a and the second slats 4b are attached to the hook 7 via a slat hanger (not shown). Each runner 3 is rotatably supported by a suspension shaft 6 that suspends and supports the first slats 4a and the second slats 4b, and a hook 7 is provided at the lower end of the suspension shaft 6. The first slats 4a and the second slats 4b are attached to the hook 7 via a slat hanger (not shown). The first slats 4a and the second slats 4b are attached to the hook 7 via a slat hanger (not shown). The first slats 4a and the second slats 4b are attached to the hook 7 via a slat hanger (not shown).

[0029] A tilt motor 5a for rotating the tilt shaft 5 is built into one end side of the hanger rail 2. When the tilt motor 5a is rotated, the tilt shaft 5 is rotated via a gear mechanism (not shown) disposed within the end cap 2a. Then, due to the rotation of the tilt shaft 5 A tilt motor 5a for rotating the tilt shaft 5 is built into one end side of the hanger rail 2. When the tilt motor 5a is rotated, the tilt shaft 5 is rotated via a gear mechanism (not shown) disposed within the end cap 2a. Then, due to the rotation of the tilt shaft 5 A tilt motor 5a for rotating the tilt shaft 5 is built into one end side of the hanger rail 2. When the tilt motor 5a is rotated, the tilt shaft 5 is rotated via a gear mechanism (not shown) disposed within the end cap 2a. Then, due to the rotation of the tilt shaft 5 Along with this, the suspension shaft 6 of each runner 3 is rotated, and the slats 4 a, 4b suspended and supported by each runner 3 are rotated.

[0030] A drive shaft 8 having a spiral groove portion is rotatably inserted into each runner 3, and second insertion holes 3b are formed. Both ends of the drive shaft 8 are rotatably supported horizontally by end caps 2a, 2b attached to both ends of the hanger rail 2. A receiving member having three spiral protrusions is arranged on the leading runner 3L located at the front end, and these spiral protrusions are fitted into the groove portion of the drive shaft 8. When the drive shaft 8 is rotated by the induction motor 8a, the leading runner 3L advances in the front-rear direction in a screw feed manner. Therefore, the leading runner 3L moves due to the rotation of the induction motor 8a, and subsequent runners 3 are sequentially pulled out following the leading runner 3L, or subsequent runners 3 are sequentially pushed back by the leading runner 3L. By such an induction operation, the slats 4a, 4b suspended and supported by each runner 3 are pulled out along the hanger rail 2 or folded back to the other end side of the hanger rail 2.

[0031] A gear mechanism (not shown) for rotating the suspension shaft 6 as the tilt shaft 5 rotates is built into the runner 3. In the runner 3 that suspends and supports the slat 4a and the runner 3 that suspends and supports the slat 4b, the gear ratios of the gear mechanisms are different. In the first embodiment, the rotation angle of the first slat 4a is set to be twice the rotation angle of the second slat 4b. This setting of the rotation angle is achieved by a worm (not shown) and a worm wheel that constitute the gear mechanism. This rotation angle setting is achieved by a worm (not shown) and a worm wheel that constitute the gear mechanism. In the runner 3 that suspends and supports the slat 4a and the runner 3 that suspends and supports the slat 4b, the gear ratios of the gear mechanisms are different. In the first embodiment, the rotation angle of the first slat 4a is set to be twice the rotation angle of the second slat 4b.

[0032] A gear mechanism (not shown) for rotating the suspension shaft 6 as the tilt shaft 5 rotates is built into the runner 3. In the runner 3 that suspends and supports the slat 4a and the runner 3 that suspends and supports the slat 4b, the gear ratios of the gear mechanisms are different. In the first embodiment, the rotation angle of the first slat 4a is set to be twice the rotation angle of the second slat 4b. This rotation angle setting is achieved by a worm (not shown) and a worm wheel that constitute the gear mechanism. This rotation angle setting is achieved by a worm (not shown) and a worm wheel that constitute the gear mechanism. It is set by adjusting the twist angle and the lead angle of the teeth of the screw (not shown). With this configuration, when the tilt shaft 5 is rotated, the slats 4a and 4b are rotated simultaneously. However, the rotation angle (i.e., the rotation speed) of the suspension shaft 6 that suspends and supports the first slat 4a is twice the rotation angle of the suspension shaft 6 that suspends and supports the second slat 4b. That is, by changing the gear ratio of the worm and the worm wheel, the rotation speed can be appropriately changed.

[0033] The worm wheel is rotatably supported by the suspension shaft 6, and a coil spring (torque transmission device) is disposed between the upper edge of the worm wheel. Then, the rotation of the worm wheel is always transmitted to the suspension shaft 6 through the friction due to the biasing force of the coil spring.

[0034] A convex strip stopper (not shown) for setting a rotation range (for example, 180 degrees) is provided between the suspension shaft 6 and the runner 3. When the slat 2 is rotated along the hanger rail 2 substantially as the suspension shaft 6 rotates, further rotation of the suspension shaft 6 in the same direction is blocked. And when the suspension shaft 6 rotates in the same direction until it is blocked, further rotation of the suspension shaft 6 in the same direction is blocked. And in a state where the rotation of the suspension shaft 6 is blocked / promoted, the worm wheel is configured to idle relative to the suspension shaft 6. With this idling configuration, in the vertical blind 1 according to the first embodiment, after the first slat 4a abuts on the second slat 4b, the second slat 4b rotates while abutting on the first slat 4a in accordance with the rotation speed of the first slat 4a.

[0035] Inside the hanger rail 2, as shown in FIGS. 2(b) and 2(d), a tilt motor 5a for rotating the tilt shaft 5 and a tilt encoder for detecting the rotation amount of the tilt shaft 5 are provided. ​​​​​​​​​​Tilter (tilt shaft rotation amount detector) 5b, induction motor 8a for rotating drive shaft 8, induction encoder 8b for detecting the rotation amount of drive shaft 8, power supply board 9, and control board (control unit) 10 that controls the induction operation and opening / closing operation (rotation operation) of slats 4a, 4b are housed. The power supply board 9 is connected to an AC power supply (AC 100V) via the power cord 9a shown in FIGS. 1 and 2(a) and supplies power to the control board 10 and the like. The vertical blind 1 includes a light receiving unit cord 12 that extends outside to receive a signal from a remote control (external operation terminal) 11 that remotely operates the operation of the slats 4a, 4b. A removable light receiving unit (receiver) 13 is connected to the light receiving unit cord 12. The removable light receiving unit 13 is attached at a position where it can receive a signal from the remote control 11 and is not installed within the range where the slats 4a, 4b move or in a place where infrared rays are strongly irradiated such as direct sunlight. The remote control 11 transmits and receives signals by infrared rays. For example, the transmission and reception reach distance of the infrared rays is about 7m, and the reach angle is within about 30 degrees. As shown in FIG. 3(a), the remote control 11 has various operation buttons. The open button 11a is pressed when folding the slats 4a, 4b. Once pressed, the slats 4a, 4b are folded until the stop button 11b is pressed. The stop button 11b is pressed when stopping the induction operation of the slats 4a, 4b. The close button 11c is pressed when pulling out the slats 4a, 4b. Once pressed, the slats 4a, 4b are pulled out until the stop button 11b is pressed.

[0036]

[0037]

[0038] The opening / closing button 11d is pressed when adjusting the tilt angle by rotating the directions of the slats 4a and 4b clockwise, and during the period other than when the automatic control described later is performed, the rotation operation continues while it is being pressed. The opening / closing button 11e is pressed when adjusting the tilt angle by rotating the directions of the slats 4a and 4b counterclockwise, and during the period other than when the automatic control described later is performed, the rotation operation continues while it is being pressed. Note that the opening / closing buttons 11d and 11e are operated when all of the slats 4a and 4b are pulled out. That is, even if the opening / closing buttons 11d and 11e are pressed during the guiding operation of pulling out the slats 4a and 4b, the opening / closing of the slats 4a and 4b is not performed. Note that the external operation terminal is not limited to the remote control 11 using infrared rays, and it suffices if it has a communication function of command signals with the vertical blind 1, and a wireless terminal using wireless communication of a predetermined frequency, voice recognition, or an external operation terminal using a wire (for example, the terminal 11R shown in Fig. 3(b)) may also be used. Next, the functional blocks of the vertical blind 1 will be described with reference to Fig. 4. The vertical blind 1 includes a tilt motor 5a that rotationally controls the tilt shaft 5, a tilt encoder 5b, an induction motor 8a that rotationally controls the drive shaft 8, an induction encoder 8b, a power supply board 9, a control unit 10, and a receiving unit 13. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b. That is, even if the opening / closing buttons 11d and 11e are pressed during the guiding operation of pulling out the slats 4a and 4b, the opening / closing of the slats 4a and 4b is not performed.

[0039] Note that the external operation terminal is not limited to the remote control 11 using infrared rays, and it suffices if it has a communication function of command signals with the vertical blind 1, and a wireless terminal using wireless communication of a predetermined frequency, voice recognition, or an external operation terminal using a wire (for example, the terminal 11R shown in Fig. 3(b)) may also be used. Next, the functional blocks of the vertical blind 1 will be described with reference to Fig. 4. The vertical blind 1 includes a tilt motor 5a that rotationally controls the tilt shaft 5, a tilt encoder 5b, an induction motor 8a that rotationally controls the drive shaft 8, an induction encoder 8b, a power supply board 9, a control unit 10, and a receiving unit 13. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b.

[0040] Next, the functional blocks of the vertical blind 1 will be described with reference to Fig. 4. The vertical blind 1 includes a tilt motor 5a that rotationally controls the tilt shaft 5, a tilt encoder 5b, an induction motor 8a that rotationally controls the drive shaft 8, an induction encoder 8b, a power supply board 9, a control unit 10, and a receiving unit 13. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b.

[0041] The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b. The tilt encoder 5b detects the rotation of the tilt shaft 5 as a physical change amount by a detection method such as a mechanical, magnetic, or optical method, and transmits it as an electric signal to the tilt angle detection unit 10d. The tilt angle detection unit 10d receives this electric signal from the tilt encoder 5b. ​​​Calculate the tilt angles of the first slat 4a and the second slat 4b based on this.

[0042] The induction encoder 8b detects the rotation of the drive shaft 8 by the sensor element as a physical change amount in the same way as the tilt encoder 5b. The calculation unit 10a calculates the induction position of the runner 3 from the rotation amount of the drive shaft detected by the induction encoder 8 b.

[0043] The control unit 10 includes a calculation unit 10a such as a microcomputer, a memory unit 10b such as an EEPROM that stores a control program for the slats 4a and 4b, and a motor drive unit 10c .

[0044] The calculation unit 10a calculates and controls the tilt angles of the slats 4a , 4b, the rotation amounts of the drive shaft 8 and the tilt shaft 5 based on the control program stored in the memory unit 10b, and has a tilt angle detection unit 10d and a tilt angle control unit 10e. Further, the calculation unit 10a determines whether the reception unit 13 has received an angle adjustment signal from the remote controller 11. The tilt angle detection unit 1 0d detects the tilt angles of the first slat 4a and the second slat 4b based on the rotation amount detection signal from the tilt encoder 5b. When the tilt angle detected by the tilt angle control unit 10e is less than a predetermined angle, the tilt angle control unit 10e controls the rotation of the first slat 4a and the second slat 4b according to the angle adjustment signal received by the reception unit 13. On the other hand, when the tilt angle detected by the tilt angle detection unit 1 0d is greater than or equal to the predetermined angle, the rotation of the first slat 4a and the second slat 4b is automatically controlled regardless of the content of the angle adjustment signal received by the reception unit 13. The automatic control in the vertical blind 1 according to the first embodiment is specifically the first slat 4a and continue to control the rotation of the second slat 4b until it reaches the reverse fully closed or fully closed state, which will be described later. This control is carried out. Also, the predetermined angle is after the first slat 4a and the second slat 4b come into contact and is a preset angle (in the example shown in FIG. 5, the tilt angle of the first slat 4a is 13 5 degrees and the tilt angle of the second slat 4b is 90 degrees).

[0045] The motor drive unit 10c controls the rotation of the drive shaft 8 and the tilt motor 5 to rotate the tilt shaft 5 based on the control signal from the tilt angle control unit 10e. With this configuration, in the vertical blind 1, the tilt angles of the slats 4a and 4b can be electrically adjusted remotely using an external operation terminal such as the remote control 11. a.

[0046] The receiving unit 13 is an electronic part having an RF module 13a with a wireless communication function with a mobile terminal or the like, and an infrared light receiving unit 13b that performs infrared communication with the remote control 11. The receiving unit 13 receives an angle adjustment signal for adjusting at least the tilt angles of the first slat 4a and the second slat 4b from an external operation terminal such as the remote control 11.

[0047] Next, the control operations of the slats 4a and 4b provided in the vertical blind 1 will be described with reference to FIGS. 5 and 6. In the first embodiment, it is assumed that the width of the slats 4a and 4b is 100 mm, and the pitch interval between the first slat 4a and the second slat 4b is 40 mm.

[0048] First, to adjust the tilt angles of the slats 4a and 4b, operate the remote control 11 to pull out the lead runner 3L along the hanger rail 2, and then move the subsequent runner 3 at a predetermined interval Pull them out sequentially with a gap. Then, after pulling the lead runner 3L to one end of the hanger rail 2, use the remote control 11 to rotate each of the slats 4a and 4b in the direction along the hanger rail 2, and it will be in the fully closed state shown in Step 1 of FIG. 5.

[0049] FIG. 5(a) shows the transition of the tilt angle of the slats 4a and 4b from the state where the slats 4a and 4b are rotated to the fully closed state by approximately 180 degrees clockwise until they reach the reverse fully closed state, from Step 1 to Step 8. For the sake of explanation, the state of the slats 4a and 4b shown in Step 1 of FIG. 5(a) is referred to as fully closed, and the state of the slats 4a and 4b shown in Step 8 of FIG. 5(b) is referred to as reverse fully closed. FIG. 5(b) explains the button operations of the remote control 11 in the corresponding steps.

[0050] Step 2 shows the state where the slat 4a is rotated 30 degrees (total 35 degrees) from Step 1 and the slat 4b is rotated 15 (total 20 degrees). Step 3 shows the case where the slat 4a is rotated a total of 90 degrees and the slat 4b is rotated a total of 45 degrees. Further, in Step 4, from Step 3, the slat 4b is pushed as the slat 4a rotates, and the case where the slat 4a is rotated a total of 110 degrees and the slat 4b is rotated a total of 70 degrees is shown. At this point, it is in the "open" state where the end of the first slat 4a abuts against the end of the second slat 4b.

[0051] In Step 5, from Step 4, the slat 4b is pushed as the slat 4a rotates, and the slat 4a is rotated a total of 135 degrees and the slat 4b is rotated a total of 90 degrees. The predetermined angle in the first embodiment of the present invention refers to the state of this Step 5 (the tilt angle of the second slat 4b is 90 degrees, or the tilt angle of the first slat 4a is 135 degrees). ​​​​​​​​​​​

[0052] After reaching the state of step 5, in steps 6 to 8, when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b continues automatically until the state of step 8 of fully closed in the reverse direction. That is, in the state of steps 6 to 8, even if the opening / closing button 11e is pressed, the slats 4a and 4b do not rotate in the reverse direction. Once the opening / closing button 11d is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 8 of fully closed in the reverse direction. That is, in the state of steps 6 to 8, even if the opening / closing button 11e is pressed, the slats 4a and 4b do not rotate in the reverse direction. After reaching the state of step 5, in steps 6 to 8, when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b continues automatically until the state of step 8 of fully closed in the reverse direction. That is, in the state of steps 6 to 8, even if the opening / closing button 11e is pressed, the slats 4a and 4b do not rotate in the reverse direction. Even if the opening / closing button 11e is pressed in the state of steps 6 to 8, the slats 4a and 4b do not rotate in the reverse direction.

[0053] Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Fig. 6 shows the transition of the tilt angle in steps 9 to 16 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 8 shown in Fig. 5 towards step 1. Also in this case, except for the difference that the rotation direction is counterclockwise, which is opposite to that in Fig. 5, it is equivalent to the operation in Fig. 5. That is, at step 12, the end of the first slat 4a abuts on the end of the second slat 4b. After that, in steps 14 to 16 after reaching the state of step 13 (a state of a predetermined angle), when the opening / closing button 11e of the remote control 11 is pressed even once, the rotation of the slats 4a and 4b is automatically controlled to continue until the state of step 16 of fully closed. That is, even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction. Even if the opening / closing button 11d is pressed in the state of steps 14 to 16, the slats 4a and 4b do not rotate in the reverse direction.

[0054] Next, the operation procedure of the vertical blind 1 according to Embodiment 1 will be described with reference to the flowchart shown in Fig. 7. First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the remote control 11 via the reception unit 13 (S71). When an angle adjustment signal is received from the remote control 11 (Yes in S71), the tilt angle control unit 10e acquires the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d, and determines whether the tilt angle is the abutting angle. Next, the operation procedure of the vertical blind 1 according to Embodiment 1 will be described with reference to the flowchart shown in Fig. 7. First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the remote control 11 via the reception unit 13 (S71). When an angle adjustment signal is received from the remote control 11 (Yes in S71), the tilt angle control unit 10e acquires the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d, and determines whether the tilt angle is the abutting angle. Next, the operation procedure of the vertical blind 1 according to Embodiment 1 will be described with reference to the flowchart shown in Fig. 7. First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the remote control 11 via the reception unit 13 (S71). When an angle adjustment signal is received from the remote control 11 (Yes in S71), the tilt angle control unit 10e acquires the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d, and determines whether the tilt angle is the abutting angle. Next, the operation procedure of the vertical blind 1 according to Embodiment 1 will be described with reference to the flowchart shown in Fig. 7. First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the remote control 11 via the reception unit 13 (S71). When an angle adjustment signal is received from the remote control 11 (Yes in S71), the tilt angle control unit 10e acquires the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d, and determines whether the tilt angle is the abutting angle. Next, the operation procedure of the vertical blind 1 according to Embodiment 1 will be described with reference to the flowchart shown in Fig. 7. First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the remote control 11 via the reception unit 13 (S71). When an angle adjustment signal is received from the remote control 11 (Yes in S71), the tilt angle control unit 10e acquires the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d, and determines whether the tilt angle is the abutting angle. Determine whether it is the above or not (S72). And when it is above the contact angle (Yes in S72), and determine whether it is equal to or greater than a predetermined angle set in advance by the program (S73). On the other hand, when it is less than the contact angle (No in S72), the tilt angle is adjusted according to the received angle adjustment signal (S74).

[0055] Next, when the tilt angle control unit 10e is equal to or greater than a predetermined angle set in advance (Yes in S73), regardless of the content of the angle adjustment signal from the remote control 11 received by the receiving unit 13, continue to rotate the slats 4a and 4b in the reverse fully closed state (tilt angle 180 degrees) (S75). On the other hand, when it is less than the predetermined angle set in advance (No in S73), based on the angle adjustment signal from the remote control 11 received by the receiving unit 13, the angles of the slats 4a and 4b are adjusted (S74). S74).

[0056] As described above, the first embodiment 1 is a vertical blind 1 in which a plurality of runners 3 movably supported inside the hanger rail 2 rotate at different rotational speeds, and the first slat 4a and the second slat 4b are alternately suspended and supported. An external operation terminal such as a remote control 11 receives an angle adjustment signal for adjusting the tilt angles of the first slat 4a and the second slat 4b, a tilt encoder 5b that detects the amount of rotation of the tilt shaft 5 that rotates the first slat 4a and the second slat 4b, and a tilt angle detection unit 10d that detects the tilt angles of the first slat 4a and the second slat 4b based on the rotation amount detection signal from the tilt encoder 5b. When the tilt angle detected by the tilt angle detection unit 10d is less than a predetermined angle, the first slat 4a and the second slat 4b are adjusted according to the angle adjustment signal received by the receiving unit 13 from the receiving unit 13 for receiving an angle adjustment signal for adjusting the tilt angles of the first slat 4a and the second slat 4b, a tilt encoder 5b for detecting the rotation amount of the tilt shaft 5 that rotates the first slat 4a and the second slat 4b, and a tilt angle detection unit 10d for detecting the tilt angles of the first slat 4a and the second slat 4b based on the rotation amount detection signal from the tilt encoder 5b. When the tilt angle detected by the tilt angle detection unit 10d is less than a predetermined angle, the first slat 4a and the second slat 4b are adjusted according to the angle adjustment signal received by the receiving unit 13 from the receiving unit 13 for receiving an angle adjustment signal for adjusting the tilt angles of the first slat 4a and the second slat 4b, a tilt encoder 5b for detecting the rotation amount of the tilt shaft 5 that rotates the first slat 4a and the second slat 4b, and a tilt angle detection unit 10d for detecting the tilt angles of the first slat 4a and the second slat 4b based on the rotation amount detection signal from the tilt encoder 5b. When the tilt angle detected by the tilt angle detection unit 10d is less than a predetermined angle, the first slat 4a and the second slat 4b are adjusted according to the angle adjustment signal received by the receiving unit 13 from the receiving unit 13 for receiving an angle adjustment signal for adjusting the tilt angles of the first slat 4a and the second slat 4b, a tilt encoder 5b for detecting the rotation amount of the tilt shaft 5 that rotates the first slat 4a and the second slat 4b, and a tilt angle detection unit 10d for detecting the tilt angles of the first slat 4a and the second slat 4b based on the rotation amount detection signal from the tilt encoder 5b. When the tilt angle detected by the tilt angle detection unit 10d is less than a predetermined angle, then, the first slat 4a and the second slat 4b are adjusted according to the angle adjustment signal received by the receiving unit 13 While controlling the rotation, when the tilt angle detected by the tilt angle detection unit 10d is equal to or greater than a predetermined angle In the case, regardless of the content of the angle adjustment signal received by the receiving unit 13, the first slat 4a and the Tilt angle control unit 10e that automatically controls the rotation of the two slats 4b, and the tilt angle control unit 10e And a motor drive unit 10c that rotates the tilt shaft 5 based on the control signal from the .

[0057] Specifically, the tilt angle control unit 10e is after the slats 4a and 4b come into contact, and After reaching a predetermined angle set in advance, the rotation of the slats 4a and 4b is continued until reverse fully closed or fully Closed. With this configuration, in the vertical blind 1, the tilt angles of the slats 4a and 4b that are alternately suspended Supported and have different rotation speeds can be appropriately prevented from causing light leakage when adjusted using an external operation Terminal such as the remote control 11.

[0058] (Modification 1) The operation procedure of Modification 1 of the first embodiment will be described with reference to FIG. 8. First, the control Unit 10 checks whether there is a reception of an angle adjustment signal from the remote control 11 via the receiving unit 13 Know (S81). And when receiving an angle adjustment signal from the remote control 11 (S8 1 Yes), the tilt angle control unit 10e obtains the current tilt angle of the slats 4a , 4b, and determines whether the tilt angle is equal to or greater than the contact angle shown in "Open" in step 4 of FIG. 5 Above (S82). Then, when the tilt angle control unit 10e becomes equal to or greater than the contact angle In the case (Yes in S82), regardless of the content of the angle adjustment signal from the remote control 11 received by the receiving unit 13 The rotation of the slats 4a and 4b is continued until reverse fully closed (tilt angle 180 degrees) When the contact angle is less than the set value (No in S82), the tilt angle of the slats 4a and 4b is adjusted based on the angle adjustment signal received from the remote controller 11 by the receiving unit 13 (S84). That is, the tilt angle control unit 10e of the vertical blind 1 in the first modification automatically controls the tilt angle after the contact point where the slats 4a and 4b are "opened". Even in this configuration, light leakage between the slats 4a and 4b can be appropriately prevented. (S84).

[0059] That is, the tilt angle control unit 10e of the vertical blind 1 in the first modification automatically controls the tilt angle after the contact point where the slats 4a and 4b are "opened". In this configuration as well, light leakage between the slats 4a and 4b can be appropriately prevented.

[0060] (Embodiment 2) Hereinafter, with reference to FIG. 9, the operation procedure of Embodiment 2 of the vertical blind 1 according to the present invention will be described. Note that since the functional configuration of the vertical blind 1 according to Embodiment 2 is the same as that of the vertical blind 1 according to Embodiment 1 above, detailed description thereof will be omitted. First, the control unit 10 detects whether an angle adjustment signal is received from the remote controller 11 via the receiving unit 13 (S91). When an angle adjustment signal is received from the remote controller 11 (Yes in S91), the tilt angle control unit 10e obtains the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d and determines whether the tilt angle is equal to or greater than the contact angle (S92). When the tilt angle is equal to or greater than the contact angle (Yes in S92), it is determined whether the angle is equal to or greater than a predetermined angle set in advance by a program (S93). On the other hand, when the contact angle is less than the set value (No in S92), the tilt angle is adjusted according to the received angle adjustment signal (S94).

[0061] First, the control unit 10 detects whether an angle adjustment signal is received from the remote controller 11 via the receiving unit 13 (S91). And when receiving an angle adjustment signal from the remote controller 11 (Yes in S91), the tilt angle control unit 10e obtains the current tilt angle of the slats 4a and 4b from the tilt angle detection unit 10d and determines whether the tilt angle is equal to or greater than the contact angle (S92). Then, when the tilt angle is equal to or greater than the contact angle (Yes in S92), it is determined whether the angle is equal to or greater than a predetermined angle set in advance by a program (S93). On the other hand, when the contact angle is less than the set value (No in S9 2), the tilt angle is adjusted according to the received angle adjustment signal (S94). (S94).

[0062] Next, when the tilt angle control unit 10e is equal to or greater than a predetermined angle set in advance (Yes in S93) ​​Regardless of the content of the angle adjustment signal from the remote control 11 received by the receiving unit 13 the rotation of the slats 4a and 4b is accelerated, for example, doubled (S95). On the other hand, if it is less than a predetermined angle set in advance (No in S93), based on the angle adjustment signal from the remote control 11 received by the receiving unit 13, the angles of the slats 4a and 4b are adjusted (S94). With this configuration, in the vertical blind 1 according to the second embodiment, the user can extend the range of the tilt angle that can be remotely operated by the remote control 11 as much as possible while minimizing the occurrence of light leakage. In the second embodiment as well, the tilt angle control unit 10e may be "opened" and rotated at high speed after the contact state, similar to the first modification example. can be prevented to the minimum extent. In the second embodiment as well, the tilt angle control unit 10e may be "opened" and rotated at high speed after the contact state, similar to the first modification example. can be prevented to the minimum extent. In the second embodiment as well, the tilt angle control unit 10e

[0063] (Embodiment 3) Hereinafter, Embodiment 3 of the vertical blind 1 according to the present invention will be described with reference to FIGS. 10 to 12. In the third embodiment, a multi-switch (external operation terminal) 30 embedded in a wall surface or the like is used to control the opening and closing of the slats 4a and 4b and the tilt angle. Hereinafter, Embodiment 3 of the vertical blind 1 according to the present invention will be described with reference to FIGS. 10 to 12. In the third embodiment, a multi-switch (external operation terminal) 30 embedded in a wall surface or the like is used to control the opening and closing of the slats 4a and 4b and the tilt angle. Hereinafter, Embodiment 3 of the vertical blind 1 according to the present invention will be described with reference to FIGS. 10 to 12. In the third embodiment, a multi-switch (external operation terminal) 30 embedded in a wall surface or the like is used to control the opening and closing of the slats 4a and 4b and the tilt angle. .

[0064] First, the control operation of the slats 4a and 4b provided in the vertical blind 1 in the third embodiment will be described with reference to FIGS. 10 and 11. When adjusting the tilt angle of the slats 4a and 4b, a predetermined operation of the multi-switch 30 is performed to pull out the leader 3L to one end side of the hanger rail 2. Then, each slat 4a or 4b is rotated along the hanger rail 2 First, the control operation of the slats 4a and 4b provided in the vertical blind 1 in the third embodiment will be described with reference to FIGS. 10 and 11. When adjusting the tilt angle of the slats 4a and 4b, a predetermined operation of the multi-switch 30 is performed to pull out the leader 3L to one end side of the hanger rail 2. Then, each slat 4a or 4b is rotated along the hanger rail 2 in the closing direction to the fully closed state shown in step 31 of FIG. 10. in the closing direction to the fully closed state shown in step 31 of FIG. 10. in the closing direction to the fully closed state shown in step 31 of FIG. 10.

[0065] FIG. 10(a) shows the slats 4a and 4b rotated to the fully closed state and rotated approximately 180 degrees clockwise The transition of the tilt angles of the slats 4a and 4b until they are rotated 180 degrees to the reverse fully closed state is shown as step 3 1 to step 35. For the sake of explanation, the state of the slats 4a and 4b shown in step 31 in Fig. 10(a) is defined as fully closed, and the state of the slats 4a and 4b shown in step 35 is referred to as reverse fully closed. Fig. 10(b) explains the button operations of the multi-switch 30 in the corresponding steps.

[0066] Step 32 shows the state where the slat 4a is rotated 85 degrees (a total of 90 degrees) from step 31 and the slat 4b is rotated 40 degrees (a total of 45 degrees). At this time, the user presses the open / close button 30a of the multi-switch 30 to specify the display of the bar 30b at the 1 / 4 position (i.e., the tilt angle of 45 degrees ). Next, the user presses the operation button 30c, and the state changes from the fully closed state shown in step 31 to the state of step 32 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees. Note that the specification of the bar 30b indicates the tilt angle of the slat 4b on the race side.

[0067] Then, the user presses the open / close button 30a of the multi-switch 30 to specify the display of the bar 30b at the 1 / 2 position (i.e., the tilt angle of the slat 4b is 90 degrees) and presses the operation button 30c . Then, the state changes from the state of step 32 to the state of step 33 where the slat 4a is rotated a total of 135 degrees and the slat 4b is rotated a total of 90 degrees.

[0068] Next, the user presses the open / close button 30a of the multi-switch 30 to specify the display of the bar 30b at the 3 / 4 position (i.e., the tilt angle of the slat 4b is 135 degrees) and presses the operation button 30c . Then, in this case, the slat 4a is rotated a total of 165 degrees as shown in step 34. ​​When the degree is such that the slats 4b do not stop after being rotated a total of 135 degrees, the rotation of the slats 4a and 4b is automatically controlled so as to continue to the state of step 35 of fully closed in the reverse direction. That is, in the third embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (at a predetermined angle or more) using the open / close button 30a of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled. That is, in the third embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (at a predetermined angle or more) using the open / close button 30a of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled. In the third embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (at a predetermined angle or more) using the open / close button 30a of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled. In the third embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (at a predetermined angle or more) using the open / close button 30a of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled. In the third embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (at a predetermined angle or more) using the open / close button 30a of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled.

[0069] Figure 11 shows the transition of the tilt angle in steps 36 to 40 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 35 shown in Figure 10 toward step 31. In this case, it is equivalent to the operation of Figure 10 except that the rotation direction is counterclockwise, which is opposite to that in Figure 10. Figure 11 shows the transition of the tilt angle in steps 36 to 40 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 35 shown in Figure 10 toward step 31. In this case, it is equivalent to the operation of Figure 10 except that the rotation direction is counterclockwise, which is opposite to that in Figure 10. Figure 11 shows the transition of the tilt angle in steps 36 to 40 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 35 shown in Figure 10 toward step 31. In this case, it is equivalent to the operation of Figure 10 except that the rotation direction is counterclockwise, which is opposite to that in Figure 10. Figure 11 shows the transition of the tilt angle in steps 36 to 40 corresponding to the case where the slats 4a and 4b are rotated counterclockwise from step 35 shown in Figure 10 toward step 31. In this case, it is equivalent to the operation of Figure 10 except that the rotation direction is counterclockwise, which is opposite to that in Figure 10.

[0070] Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise. Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise. Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise. Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise. Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise. Step 37 shows a state where the slat 4a is rotated 85 degrees (total 90 degrees) and the slat 4b is rotated 40 degrees (total 45 degrees) counterclockwise from the state of step 36 of fully closed in the reverse direction. At this time, the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 3 / 4 position (that is, the tilt angle of the slat 4b is 135 degrees). Next, when the user presses the operation button 30c, the state transitions from the fully closed state in the reverse direction shown in step 36 to the state of step 37 where the slat 4a is rotated 90 degrees and the slat 4b is rotated 45 degrees counterclockwise.

[0071] Then, when the user further presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 1 / 2 position (that is, the tilt angle of the slat 4b is 90 degrees) and presses the operation button 30c. Then, the slat 4a in step 38 is rotated a total of 135 degrees, and the slat 4b Then, when the user further presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 1 / 2 position (that is, the tilt angle of the slat 4b is 90 degrees) and presses the operation button 30c. Then, the slat 4a in step 38 is rotated a total of 135 degrees, and the slat 4b Then, when the user further presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b to the 1 / 2 position (that is, the tilt angle of the slat 4b is 90 degrees) and presses the operation button 30c. Then, the slat 4a in step 38 is rotated a total of 135 degrees, and the slat 4b It will be in a state of being rotated 90 degrees counterclockwise in total.

[0072] Next, when the user presses the open / close button 30d of the multi-switch 30 to specify the display of the bar 30b at the 1 / 4 position (i.e., the tilt angle of the slat 4b is 45 degrees), the operation button 30c is pressed. Then, as shown in step 39, the slat 4a rotates a total of 165 degrees and the slat 4 b rotates a total of 135 degrees and does not stop in the counterclockwise rotation state, but the rotation of the slats 4a and 4b is automatically controlled to continue until the fully closed state of step 40 is reached. That is, when the tilt angle of the slat 4b on the race side is specified within 90 degrees using the open / close button 30d of the multi-switch 30 and the operation button 30c is pressed, the rotation of the slats 4a and 4b is automatically controlled . When performing the automatic control, the position of the bar 30b of the multi-switch 30 can also be automatically moved along with the automatic control. control.

[0073] Next, the operation procedure of the vertical blind 1 according to the third embodiment will be described with reference to the flowchart shown in FIG. 12 . First, the control unit 10 detects whether there is a reception of an angle adjustment signal from the multi-switch 30 via the reception unit 13 (S121). Then, when receiving an angle adjustment signal from the multi-switch 30 (Yes in S121), the tilt angle control unit 10e determines whether the angle adjustment signal received by the reception unit 13 is equal to or greater than a predetermined angle range (S122). Here the predetermined angle means the rotation angle when the rotation continues from the fully closed state or the reverse fully closed state . And when the angle adjustment signal is less than the predetermined angle range (No in S1 22), the tilt angle control unit 10e follows the angle adjustment signal from the multi-switch 30 received by the reception unit 13 .

[0074] And when the angle adjustment signal is less than the predetermined angle range (No in S1 22), the tilt angle control unit 10e follows the angle adjustment signal from the multi-switch 30 received by the reception unit 13 Adjust the tilt angle (S123). On the other hand, when the angle adjustment signal received by the receiving unit 13 is equal to or greater than a predetermined angle range (Yes in S122), regardless of the content of the angle adjustment signal from the multi-switch 30 received by the receiving unit 13, the rotation of the slats 4a and 4b is automatically controlled (for example, in the case of FIG. 10, it continues until reverse fully closed (tilt angle 180 degrees), and in the case of FIG. 11, it continues until fully closed (tilt angle 0 degrees)) (S124).

[0075] As described above, in the vertical blind 1 according to the third embodiment, based on the angle adjustment signal from the multi-switch 30, the tilt angles of the slats 4a and 4b that are alternately suspended and supported and have different rotation speeds are automatically controlled to surely prevent light leakage from occurring.

[0076] (Embodiment 4) Hereinafter, Embodiment 4 of the vertical blind 1 according to the present invention will be described with reference to FIG. 13. In the fourth embodiment, a zone switch (external operation terminal) 40 is used to control the opening and closing and tilt angles of the slats 4a and 4b.

[0077] First, the control operation of the slats 4a and 4b provided in the vertical blind 1 in the fourth embodiment will be described with reference to FIG. 13. FIG. 13(a) shows the transition of the tilt angles of the slats 4a and 4b from when they are rotated to the fully closed state and rotated clockwise by approximately 180 degrees to the reverse fully closed state as steps 41 to 44. FIG. 13(b) explains the button operation of the zone switch 40 in the corresponding steps.

[0078] ​​​​​​​​​​​​​Step 42 shows a state where the slat 4a is rotated 130 degrees (a total of 135 degrees) from Step 41, and the slat 4b is rotated 85 degrees (a total of 90 degrees). At this time, the user presses the opening / closing button 40a of the zone switch 4 0 to specify the display of the lighting bar 40b at the 1 / 2 position (i.e., the tilt angle of the slat 4b is 90 degrees). Note that the specification of the lighting bar 40b here indicates the tilt angle of the slat 4b on the race side. At this time, the slats 4a and 4b are sequentially changed in tilt angle according to the position of the lighting bar 4 0b.

[0079] Next, the user presses the opening / closing button 40a of the zone switch 40 to specify the display of the lighting bar 40b at the 3 / 4 position (i.e., the tilt angle of the slat 4b is 135 degrees). Then, as shown in Step 43, the slat 4a rotates a total of 165 degrees and the slat 4b rotates a total of 135 degrees, and the rotation of the slats 4a and 4b continues without stopping until the state of Step 44 of reverse full closure. That is, in the fourth embodiment, when the tilt angle of the slat 4b on the race side is specified to be 90 degrees or more (above a predetermined angle) using the opening / closing button 40a of the zone switch 40, the rotation of the slats 4a and 4b is automatically controlled. With this configuration, the same operational effects as those of the third embodiment can be achieved.

[0080] (Embodiment 5) Hereinafter, Embodiment 5 of the vertical blind 1 according to the present invention will be described with reference to FIG. 14. In the fourth embodiment, in the vertical blind 1, the slats 4a and 4b that are alternately suspended and supported and have different rotation speeds are not provided, and the type of slats is not particularly limited, and the slats 4 having the same rotation speed are provided.

[0081] ​​​​​​​​As shown in FIG. 14, when the angle adjustment signal from the external operation terminal is within the range of 45 to 135 degrees (i.e., within the predetermined angle range) at steps 53 to 55, the tilt angle of the slat 4 is automatically controlled to 90 degrees regardless of the angle adjustment signal. On the other hand, when the received angle adjustment signal is at a specified angle outside the predetermined angle range, i.e., at steps 52, 56, and 57, the slat 4 is rotated according to the angle specified in the angle adjustment signal. That is, the tilt angle control unit 10e automatically controls the rotation of the slat 4 when the tilt angle of the slat 4 falls within the predetermined angle range. When the tilt angle of the slat 4 is within the predetermined angle range, the rotation of the slat 4 is automatically controlled. On the other hand, when the received angle adjustment signal is at a specified angle outside the predetermined angle range, i.e., at steps 52, 56, and 57, the slat 4 is rotated according to the angle specified in the angle adjustment signal. That is, the tilt angle control unit 10e automatically controls the rotation of the slat 4 when the tilt angle of the slat 4 falls within the predetermined angle range. That is, the tilt angle control unit 10e automatically controls the rotation of the slat 4 when the tilt angle of the slat 4 falls within the predetermined angle range. That is, the tilt angle control unit 10e automatically controls the rotation of the slat 4 when the tilt angle of the slat 4 falls within the predetermined angle range.

[0082] (Embodiment 6) Hereinafter, Embodiment 6 of the vertical blind according to the present invention will be described with reference to FIGS. 16 to 18. The same components as those described above are denoted by the same reference numerals, and detailed descriptions thereof are omitted. In Embodiment 6, as shown in FIG. 16, three vertical blinds 1A on the leading side, 1B on the intermediate side, and 1C on the trailing side are arranged in series. The AC power supply is at one location and is connected only to the vertical blind 1A on the leading side. Specifically, the vertical blind 1A incorporates a power branch joint J. As shown in FIG. 17, the power supply board 9 is connected to an AC power supply (AC100V) via the power branch joint J. In addition, this power branch joint J has a function of branching the power from one power supply (outlet) and supplying power to a plurality of adjacent products. Also, as shown in FIG. 18, the power branch joint J has a power receiving side wiring J1 and a power supply side wiring J2. For example, the case of the power branch joint J is fixed to the housing surface using double-sided tape. The AC power supply is at one location and is connected only to the vertical blind 1A on the leading side.

[0083] Specifically, the vertical blind 1A incorporates a power branch joint J. As shown in FIG. 17, the power supply board 9 is connected to an AC power supply (AC100V) via the power branch joint J. Also, this power branch joint J has a function of branching the power from one power supply (outlet) and supplying power to a plurality of adjacent products. In addition, this power branch joint J has a function of branching the power from one power supply (outlet) and supplying power to a plurality of adjacent products. Also, as shown in FIG. 18, the power branch joint J has a power receiving side wiring J1 and a power supply side wiring J2. For example, the case of the power branch joint J is fixed to the housing surface using double-sided tape. In addition, this power branch joint J has a function of branching the power from one power supply (outlet) and supplying power to a plurality of adjacent products. Also, as shown in FIG. 18, the power branch joint J has a power receiving side wiring J1 and a power supply side wiring J2. For example, the case of the power branch joint J is fixed to the housing surface using double-sided tape. In addition, this power branch joint J has a function of branching the power from one power supply (outlet) and supplying power to a plurality of adjacent products. Also, as shown in FIG. 18, the power branch joint J has a power receiving side wiring J1 and a power supply side wiring J2. For example, the case of the power branch joint J is fixed to the housing surface using double-sided tape. For example, the case of the power branch joint J is fixed to the housing surface using double-sided tape.

[0084] The power receiving side of the power branch joint J equipped with the vertical blind 1A is an outlet (AC100 V) and the power supply side supplies power to the adjacent product (Vertical Blind 1B). The power receiving side of the power branch joint J of India 1B is the power branch joint of the vertical blind 1A. The power supply side is connected to the power supply side of the input J, and the power supply side supplies power to the adjacent product (vertical blind 1C). The power receiving side of the power branch joint J where the vertical blind 1C is installed is the power receiving side of the vertical blind 1B. This is connected to the power supply side of the power supply branch joint J. The vertical blinds 1A to 1C can be arranged in a single unit while providing the same advantageous effects as those of the above embodiment. The devices can be arranged in series using only the power source provided.

[0085] (Embodiment 7) Hereinafter, a seventh embodiment of the vertical blind according to the present invention will be described with reference to FIG. In the seventh embodiment, the outside of the tilt motor 5a and its insert 5c is made of a flexible motor. The insert 5 is covered with rubber (made of nitrile rubber, for example). c and the hardness of the outside of the tilt motor 5a are softened to reduce the tilt operation noise, This also applies to the induction motor 8a.

[0086] The present invention is not limited to the configuration of the above embodiment, and various modifications are possible without departing from the spirit of the invention. For example, the predetermined angle in the first embodiment is merely an example. The contact angle between the slats is determined according to the width of the slats and the pitch of the adjacent slats. Furthermore, the predetermined angle that is set in advance can be changed as appropriate.

[0087] In addition, the vertical blind of the present invention has a step as a characteristic component. It can be realized as a slat control method or as a program including all of those steps. Moreover, such a program can be distributed via a recording medium such as a USB or a transmission medium such as the Internet.

Explanation of Signs

[0088] 1 Vertical blind 2 Hanger rail 3 Runner 3L Lead runner 4a First slat 4b Second slat 5 Tilt shaft 5a Tilt motor 5b Tilt encoder (tilt shaft rotation amount detection unit) 8 Drive shaft 8a Induction motor 8b Induction encoder 9 Power supply board 10 Control board (control unit) 10a Arithmetic unit 10b Memory unit 10c Motor drive unit 10d Tilt angle detection unit 10e Tilt angle control unit 11 Remote control (external operation terminal) 13 Carry-out light receiving unit (reception unit) 13a RF module 13b Infrared light receiving unit 30 Multi-switch (external operation terminal) 40 Zone switch (external operation terminal)

Claims

1. A vertical blind in which a first slat and a second slat that rotate at different rotational speeds are alternately suspended and supported by a plurality of runners movably supported within a hanging rail, a receiving unit that receives an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal; a tilt shaft rotation amount detection unit that detects the rotation amount of a tilt shaft that rotates the first slat and the second slat; a tilt angle detection unit that detects the tilt angles of the first slat and the second slat based on a rotation amount detection signal from the tilt shaft rotation amount detection unit; a tilt angle control unit that automatically controls the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat become a predetermined angle or more; a motor drive unit that rotates the tilt shaft based on a control signal from the tilt angle control unit, and is provided with, the automatic control in the tilt angle control unit is control for continuing the rotation of the first slat and the second slat until reverse full closure or full closure, the predetermined angle is an angle that is after the first slat and the second slat come into contact and is a preset angle, or an angle when the first slat and the second slat come into contact, A vertical blind characterized by this.

2. When the tilt angle detected by the tilt angle detection unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal received by the receiving unit. On the other hand, when the tilt angle detected by the tilt angle detection unit is a predetermined angle or more, the rotation of the first slat and the second slat is automatically controlled regardless of the content of the angle adjustment signal received by the receiving unit. The vertical blind according to claim 1, characterized by this.

3. When the angle adjustment signal received by the receiving unit is less than a predetermined angle, the tilt angle control unit controls the rotation of the first slat and the second slat according to the angle adjustment signal. On the other hand, when the angle adjustment signal received by the receiving unit is a predetermined angle or more, the rotation of the first slat and the second slat is automatically controlled regardless of the content of the angle adjustment signal. The vertical blind according to claim 1, characterized by this.

4. The automatic control in the tilt angle control unit is control for accelerating the rotation of the first slat and the second slat. The vertical blind according to any one of claims 1 to 3, wherein the predetermined angle is an angle set in advance after the first slat and the second slat come into contact with each other, or an angle at which the first slat and the second slat come into contact with each other.

5. The first slat is a light-shielding drapery fabric, and the second slat is a semi-transparent lace fabric. The vertical blind according to any one of claims 1 to 4, wherein the rotation speed of the first slat is faster than the rotation speed of the second slat.

6. The vertical blind according to any one of claims 3 to 5, wherein after the first slat comes into contact with the second slat, the second slat rotates while coming into contact with the first slat in accordance with the rotation speed of the first slat.

7. A slat control method for a vertical blind in which a first slat and a second slat that rotate at different rotation speeds are alternately suspended and supported by a plurality of runners movably supported within a hanger rail. A receiving step of receiving an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal. A tilt shaft rotation amount detection step of detecting the rotation amount of a tilt shaft that rotates the first slat and the second slat. A tilt angle detection step of detecting the tilt angles of the first slat and the second slat based on the rotation amount detection signal in the tilt shaft rotation amount detection step. A tilt angle control step of automatically controlling the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat become a predetermined angle or more. Including a motor drive step of rotating the tilt shaft based on the control signal in the tilt angle control step. The automatic control in the tilt angle control step is control for continuing the rotation of the first slat and the second slat until reverse full closure or full closure. The slat control method is characterized in that the predetermined angle is an angle set in advance after the first slat and the second slat come into contact with each other, or an angle at which the first slat and the second slat come into contact with each other.

8. A program executed by a computer to control a vertical blind in which a first slat and a second slat that rotate at different rotational speeds are alternately suspended and supported by a plurality of runners movably supported within a hanger rail, A receiving step of receiving an angle adjustment signal for adjusting the tilt angles of the first slat and the second slat from an external operation terminal; A tilt shaft rotation amount detection step of detecting the rotation amount of a tilt shaft that rotates the first slat and the second slat; A tilt angle detection step of detecting the tilt angles of the first slat and the second slat based on the rotation amount detection signal in the tilt shaft rotation amount detection step; A tilt angle control step of automatically controlling the rotation of the first slat and the second slat when the tilt angles of the first slat and the second slat become equal to or greater than a predetermined angle; A motor drive step of rotating the tilt shaft based on the control signal in the tilt angle control step, and includes: The automatic control in the tilt angle control step is control that continues the rotation of the first slat and the second slat until reverse fully closed or fully closed; The predetermined angle is an angle after the first slat and the second slat come into contact and a preset angle, or an angle when the first slat and the second slat come into contact. A program characterized by that.

Images