JPH11200738A - Electric vertical blinds - Google Patents

Abstract

(57) [Problem] To provide an electric vertical blind excellent in operability that does not require adjustment of a louver at an end position. An electric vertical blind is suspended, a plurality of louvers 3 that idle at end portions, a rotating electric motor 9 for rotating the plurality of louvers 3, and a first predetermined angle from the rotating electric motor 9. When there is a rotation detection unit 10 for outputting a detection signal each time the motor rotates, and a rotation instruction for a plurality of louvers 3 is given,
A control unit for rotating the rotating electric motor 9 by a second predetermined angle to an end angle position, and controlling the angle position of the louver 3 based on the end angle position and the detection signal output by the rotation detection unit 10. 11 is included.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vertical blind for opening and closing a plurality of louvers, and more particularly, to an electric vertical blind for controlling angle adjustment of a plurality of louvers by rotation of an electric motor.

[0002]

2. Description of the Related Art At present, a vertical blind is widely known as an opening / closing device installed in a space where a sense of quality is required, such as a hotel lobby. Since many of these vertical blinds have a wide opening / closing range, which increases the weight of the louver group, a large driving force is required for opening / closing and rotating the louver group. It uses an electric motor.

As an example of a vertical blind, Japanese Utility Model Application Laid-Open No.
Japanese Patent Application Laid-Open No. -101691 and Japanese Patent Application Laid-Open No. 5-33568. In particular, JP-A-5-3356
The vertical blind disclosed in Japanese Patent Publication No. 8 has a plurality of carriers rotatably supported on a head rail, and each louver is suspended from each carrier via a hook member.
A screw shaft and an operation shaft for adjusting the angle of the louver are juxtaposed along the longitudinal direction of the head rail. Then, the screw shaft is loosely inserted into each carrier, and it is fitted to the female screw portion formed on the master carrier at the foremost position, and the rotation of the screw shaft moves the master carrier forward and backward to open and close the louver in the lateral direction. I do. On the other hand, a hook member is supported on each carrier so as to be freely rotatable forward and backward around a vertical axis within a predetermined angle range, and a worm inserted into the operation shaft is provided coaxially with the hook member. The hook member is rotated forward / reverse via the worm wheel to adjust the opening angle of the louver.

Further, when the louvers are at different opening angles, the hook member is rotated to the rotation position at the end of the above-mentioned predetermined angle range so that the opening angles of all the louvers can be equalized, and the hook members are rotated. The worm wheel is configured to run idle after the rotation is restricted. That is, a shaft inserted into the shaft hole of the worm wheel is protruded from the hook member, the diameter of the shaft is slightly larger than the diameter of the shaft hole, and the shaft is elastically frictionally engaged with the worm wheel. Or, a cylindrical spring is pressed against the inner peripheral surface of the worm wheel to be able to idle.

When the blind is opened and closed in the horizontal direction, it is stopped at the ends in the opening and closing directions so that the blind does not open and close beyond the ends. A proximity switch operating member made of a magnetic material is provided. A proximity switch operated by a proximity switch actuating member is provided at a position corresponding to the position of the master carrier in the fully open and fully closed positions in the head rail, and an end in the opening direction is provided by the proximity switch provided at the fully open position. The rotation of the motor is stopped upon detection, and the end of the motor in the closing direction is detected by a proximity switch provided at the fully closed position to stop the rotation of the motor.

In order to make the louver perpendicular to the opening / closing direction when the opening operation is performed, that is, to set the angle at the center of both ends,
In order to prevent unnecessary idle operation even when the opening angle of the louver is adjusted when the louver is rotated, for example, an angle position detecting screw shaft is joined to the output shaft of the rotating electric motor. . Then, the angular position detection screw shaft is fitted with a female screw portion formed on the rotation limit switch operation member, and the rotation limit switch operation member is operated by the rotation limit switch operation member at a position near the center of the angle position detection screw shaft. A micro switch is provided. The rotation limit switch operating member advances and retreats due to the rotation of the angular position detecting screw shaft, and a micro switch operated by the rotary limit switch operating member is provided near a position corresponding to an end angle position of the angular position detecting screw shaft. Further, a micro switch operated by the rotation limit switch operating member is provided near the position of the angular position detection screw shaft corresponding to the opposite end, and the end is detected by detecting the micro switch provided at the position corresponding to the end. Stop the rotation of the motor in the direction of the section. Further, when the blind is opened, the louver is first rotated to one end to make the opening angle of the louver uniform, and then the louver is rotated toward the other end to provide a micro position provided at a position corresponding to the center. The rotation of the electric motor is stopped by the detection of the switch, so that the louver is set at the center angle position. Then, the rotation of the motor in the opening direction is stopped by detecting a microswitch provided at a position corresponding to the end in the opening direction.

[0007]

However, the installation positions of the microswitches corresponding to the end, the center, and the reverse end of the louver during rotation are usually centered in order to adjust the tightness of the louver. The micro switch at the corresponding position is fixed near the center of the angular position detection screw shaft, and the positions of the micro switches at both ends are provided with a female screw portion on the micro switch mounting member, for example, as in the case of the angle position detection screw shaft, The distance from the center position is adjusted by manually turning a screw shaft that is fitted to the female screw portion. That is, when setting the end angle position, it is necessary to manually adjust in consideration of the tightness of the louver,
There was a problem that it was necessary to visually check whether the adjustment was performed correctly by actually operating the blinds. In addition, when an expensive blind is operated such that a plurality of blinds are operated in conjunction with each other, there is a possibility that the adjustment position varies among the plurality of blinds, and the louver angle varies depending on the blind when operated in conjunction with the blinds. was there.

Further, as described above, there are only three micro switches for detecting the angular position, that is, the end, the center, and the opposite end, and the operating position of the micro switch is different depending on the rotation direction of the motor. Therefore, the central angular position needs to be the operating position in the rotation direction from either end, and in the operation of setting the louver to an arbitrary angular position, the micro position provided at the central angular position is required. In order to operate the switch, it is necessary to temporarily return to the non-operation position, and there is a problem that the angle cannot be set at the intermediate angle position with only these three micro switches.

In addition, the idler mechanism of the louver usually has play in the rotating direction, and when setting the angle of the louver accurately, it is necessary to consider the play when rotating in the direction opposite to the previous rotating direction. There is. Similarly, since the motor rotates in the idling region at the end but the louver does not rotate, if the motor is stopped in the middle of the idling region at the end, the louver is rotated during the next rotation operation of the louver. Since it does not rotate immediately, there is a problem of giving anxiety to the operator.

[0010] Further, the rotation operation for eliminating the variation in the opening angle of all the louvers is performed in a series of the opening operations of the louvers. In the opening operation of the louver, it is necessary to rotate the louver to the central angular position after eliminating the variation in the opening angle of all louvers, so the operating position of the micro switch provided at the central angular position of the louver must be changed. The opening angle of the louvers is made uniform by rotating the louvers in a direction opposite to the rotation direction for checking and idling at the ends. In addition, the amount of idling at the end is defined as the entire rotation range amount corresponding to the angle from one end to the opposite end.
That is, when the angle position of the louver at the time of the opening operation is at the end opposite to the end to be idle, it is necessary to rotate the louver twice as much as the entire rotation range. Since the louver is within the entire rotation range from the end to the opposite end, if the louver is rotated at least by the entire rotation range, the louver at the end will rotate to the open angle at the end due to idling of the louver at the end. Is set. Even if the louver is at the opposite end, by rotating the louver by the entire rotation range amount, the angles of all the louvers are aligned, so that unnecessary rotation is performed in the louver opening operation described above. As a result, there is a problem that the process of the opening operation is eventually sent.

Further, the louver whose opening angle does not vary due to idling is idling at the end. This is because even if the rotation operation is performed by the minimum amount of the entire rotation range necessary to make the opening angles uniform, the idling similarly occurs at the end simply by reducing the number of target louvers. For example, if there is no idling and the opening angle of the louver is at the center angle position, if the louver is rotated by the entire rotation range amount, it will end at the rotation of the half rotation range amount, and in the rotation of the remaining half rotation range amount The louver is spinning. Therefore, unnecessary idling is performed, and the life of the idling mechanism of the carrier is shortened. Therefore, it is necessary to use a long-life carrier idler, resulting in a problem that the blind becomes expensive.

In addition, when the slats are at the lower limit position in the lower limit position in the automatic lowering operation employed in the electric horizontal blind, ie, in the horizontal lowering operation, the lowering operation is stopped and then the slat is closed to perform the full closing angle. There is no function in a vertical blind. Therefore, when the electric vertical blind is in the open state and the entire blind is to be closed, after performing the closing operation, wait for the louver to be in the fully closed position, and then rotate the louver to the end in the desired rotation direction. There is a need. Therefore, there is a problem that the operator has to perform a plurality of operations, and has to wait until the closing operation of the louver is completed in order to perform the rotation operation of the louver.

In order to tighten the louvers, the louvers are idled at the ends. Usually, the rotation operation is performed while the rotation key is pressed, and when the rotation key is released, the rotation of the louver is stopped. Therefore, if the louver is idle at the end,
There is a problem of poor operability that the operator does not know when to press the rotary key.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric vertical blind which does not require adjustment of the end position of the rotation of the louver. It is to provide.

A third object of the present invention is to provide an electric vertical blind which can correctly set the angle of the louver even when the louver is reversely rotated.

It is an object of the present invention to provide an electric vertical blind capable of improving the tightness of a louver.

The objects of the invention described in claims 5 and 6 are as follows.
An object of the present invention is to provide an electric vertical blind capable of reducing idling of a louver at an end portion and extending the life of components.

An object of the present invention is to provide an electric vertical blind excellent in operability.

It is an object of the present invention to provide an electric vertical blind in which a louver can be closed and rotated only by a closing operation.

[0020]

According to a first aspect of the present invention, there is provided an electric vertical blind suspended from a plurality of louvers suspended at an end thereof, an electric motor for rotating the plurality of louvers, and an electric motor. Driving means for instructing rotation of the plurality of louvers, angle detecting means for outputting a detection signal each time the electric motor rotates by a first predetermined angle, and rotation instruction from the instruction means. At one time, the driving means rotates the electric motor by a second predetermined angle to an end angular position,
Control means for controlling the angular position of the louver based on the end angle position and the detection signal output by the angle detection means.

The control means, when there is a rotation instruction from the instruction means, causes the drive means to rotate the motor by the second predetermined angle to the end angle position, and detects the end angle position and the detection output by the angle detection means. Since the angular position of the louver is controlled based on the signal, it is not necessary to adjust the end position, and it is possible to provide an electric vertical blind excellent in operability.

The electric vertical blind according to claim 2 is
2. The electric vertical blind according to claim 1, wherein the control means rotates the electric motor by the driving means and counts a detection signal output by the angle detection means when the rotation instruction is given from the instruction means, and the control means determines the rotation in advance. When the total rotation range value is reached, the end angle position is determined, and the angle position of the louver is controlled based on the end angle position and the detection signal output by the angle detection means.

The control means causes the drive means to rotate the motor by the entire rotation range value to the end angle position, so that the opening angles of all the louvers coincide, and an accurate angle setting operation can be performed.

The electric vertical blind according to claim 3 is
The electric vertical blind according to claim 1 or 2,
The control means does not count the detection signal output by the angle detection means a predetermined number of times when the driving means reverses the electric motor.

The control means, when reversing the motor,
Since the detection signal is not counted a predetermined number of times, it is possible to eliminate play in the idler mechanism of the louver, and it is possible to correctly set the angular position of the louver.

The electric vertical blind according to claim 4 is
The electric vertical blind according to any one of claims 1 to 3, wherein the electric vertical blind further includes an end portion for setting an additional count of a detection signal output by the angle detection means at the end angle position. Including additional setting means, the control means, when the angle position of the louver becomes the end angle position,
Further, after counting the number of detection signals output by the angle detecting means for the number of times set in the end addition setting means, the driving means stops the rotation of the electric motor.

When the angle position of the louver reaches the end angle position, the control means stops the rotation of the motor after counting the detection signal for the number of times set in the end additional setting means. It becomes possible to improve the tightness.

The electric vertical blind according to claim 5 is
The electric vertical blind according to claim 1 or 2,
At the time of the louver alignment operation, the control means determines the far end from the angle position of the louver, causes the driving means to rotate the motor in the direction of the far end, counts the detection signal output by the angle detection means, and determines the predetermined position. The drive means stops the electric motor when the full rotation range value is reached.

Since the control means rotates the electric motor in the direction of the far end by the entire rotation range value, the idle rotation of the louver at the end can be reduced, and the life of the parts can be prolonged.

An electric vertical blind according to claim 6 is
The electric vertical blind according to claim 1 or 2,
At the time of the louver alignment operation, the control means determines the near end from the louver angle position, and causes the drive means to rotate the electric motor in the direction of the near end, and when the louver angle position becomes the near end position, the drive means The motor is stopped, the driving means rotates the motor in the direction of the far end, the detection signal output by the angle detection means is counted, and the driving means stops the motor when a predetermined full rotation range value is reached. Let it.

The control means rotates the motor in the direction of the near end, rotates the motor in the direction of the far end after the angular position of the louver has reached the position of the near end, and rotates the motor by the full rotation range value. In this case, since the motor is stopped, the idling of the louver at the end portion is further reduced, and the life of the component can be further extended.

The electric vertical blind according to claim 7 is
The electric vertical blind according to claim 1 or 2,
The control means, when receiving an instruction to stop rotation of the plurality of louvers from the instruction means, when the angular position of the louver is within a predetermined range from the end angular position of the louver in the rotation direction, the angular position of the louver is After reaching the end angle position in the rotation direction, the driving means stops the rotation of the electric motor.

When the control means receives an instruction to stop the rotation of the louver, if the angular position of the louver is within a predetermined range from the end angle position, the control means rotates the louver to the end. The stop operation can be performed without worrying about the idling time in the section, and an electric vertical blind excellent in operability can be provided.

The electric vertical blind according to claim 8 is
4. The electric vertical blind according to claim 3, wherein, when the control means receives an instruction to stop the rotation of the plurality of louvers from the instruction means, the detection signal output by the angle detection means is not counted a predetermined number of times. In some cases, after the end of the process, the driving means stops the rotation of the electric motor.

When the control means receives a command to stop the rotation of the plurality of louvers and is in the process of not counting the detection signal a predetermined number of times, the control means stops the electric rotation after the completion of the process. Will not stop within
The next operation can be performed immediately.

[0036] The electric vertical blind according to claim 9 is
The electric vertical blind according to claim 1 or 2,
The electric vertical blind further includes angle position setting means for setting the angle positions of the plurality of louvers, and the control means determines the rotation direction of the louver from the difference between the set value set in the angle position setting means and the louver angle position. Is determined, and the motor is rotated in the rotation direction determined by the driving means, and when the angular position of the louver reaches the set value, the driving means stops the motor.

The control means drives the motor so that the set value set in the angle position setting means and the angle position of the louver coincide with each other, so that the louver can be set to an arbitrary angle position.

According to a tenth aspect of the present invention, there is provided an electric vertical blind suspended by a plurality of louvers suspended at an end, a first motor for rotating the plurality of louvers, and a plurality of louvers opened and closed by rotation. A second electric motor, a driving unit for rotating the first electric motor and the second electric motor, an instruction unit for instructing opening and closing of a plurality of louvers,
A fully closed position detecting means for detecting that the plurality of louvers are at the fully closed position, an angle detecting means for outputting a detection signal each time the first electric motor rotates a predetermined angle, and An angular position setting means for setting an angular position of the louver when in the closed position; and a driving means for rotating the second electric motor in the closing direction of the plurality of louvers when the instruction means instructs a closing operation. When the fully closed position is detected by the fully closed position detecting means, the driving means stops the rotation of the second electric motor, and then rotates the first electric motor, based on the detection signal output from the angle detecting means. Control means for controlling the angular position of the louver obtained by the above and the angular position set by the angular position setting means to coincide with each other.

After moving the plurality of louvers to the fully closed position, the control means performs control so that the angular position of the louvers coincides with the angular position set by the angular position setting means. Can be closed and rotated.

An electric vertical blind according to an eleventh aspect is the electric vertical blind according to the tenth aspect, wherein the angle position set by the angle position setting means is an end angle position of the louver.

Since the angular position set by the angular position setting means is the end position of the louver, the closing operation of the louver and the rotation to the end position of the louver can be performed only by the closing operation.

[0042]

FIG. 1 is a diagram showing a schematic configuration of an electric vertical blind according to an embodiment of the present invention. Electric vertical blinds are head rail 1, head rail 1
A plurality of carriers 2 traveling along the louvers 3, hook members 4 for suspending the louvers 3, a master carrier 5 disposed at the head of the carrier 3, an opening / closing screw shaft 6, an opening / closing electric motor 7, and a rotating operation shaft. 8, rotating electric motor 9, rotating electric motor 9
A rotation detecting unit 10 for detecting the rotation of the motor, a control unit 11 for controlling the electric vertical blind, an opening / closing transmission mechanism 13 for transmitting the rotation of the opening / closing motor 7 to the opening / closing screw shaft, and a motor 9 for rotation. Transmission mechanism 15 for transmitting the rotation of the rotation to the rotation operation shaft 8, the fully-closed limit switch 1 that operates when the master carrier 5 is at the fully-closed position
6 and a fully open limit switch 17 that operates when the master carrier 5 is in the fully open position.

The hook member 4 suspending the louver 3 includes:
The louver 3 is connected to the carrier 2 so as to idle when the rotation angle of the louver 3 exceeds the end angle position. Each carrier 2
Is connected to a spacer (not shown). When the opening / closing motor 7 rotates the opening / closing screw shaft 6, the master carrier 5 and the carrier 2 move along the head rail 1, and the blind is opened and closed. . Further, by rotating the rotating operation shaft 8 by the rotating electric motor 9, the hook member 4 is rotated forward or forward via a worm and a worm wheel (not shown) in the carrier 2 inserted into the rotating operation shaft 8. The louver 3 is rotated in the right direction (clockwise as viewed from above) or the left direction (counterclockwise as viewed from above).

A proximity switch actuating member (not shown) made of a magnet is provided on the upper portion of the master carrier 5, and is located at positions corresponding to the positions of the master carrier 5 when the blinds in the head rail 1 are fully opened and fully closed, respectively. A fully-closed limit switch 16 and a fully-open limit switch 17, each of which is a proximity switch operated by a proximity switch operating member, are provided. A reed switch is used as an internal element of the proximity switch. When the proximity switch actuating member approaches, the contact of the reed switch turns off, and when the proximity switch actuating member separates, the contact of the reed switch turns on.

FIG. 2 is a block diagram showing a schematic configuration of main electric components of the electric vertical blind according to the embodiment of the present invention. The electric vertical blind includes a power input unit 21 to which a 100 V AC power is input, a power transformer 22, a stabilized power unit 23 for converting an AC voltage output from the power transformer 22 into a predetermined DC voltage, (Micro Processing U) for controlling die blinds
nit) 24, a motor drive unit 25 for driving the opening / closing motor 7 and the rotating motor 9, a command unit 26 for commanding the opening / closing operation and the rotation operation of the louver 3, and an angular position of the louver 3. Unit 27 for setting the rotation of the louver 3 at the end of the rotation of the louver 3, and an additional rotation switch 28 for setting the rotation of the louver 3, and fully closed for setting the angular position of the louver 3 after the louver 3 is closed Time operation switch 29 is included.

The control unit 11 shown in FIG.
The power transformer 22, the stabilized power supply unit 23, the MPU 24, the electric motor drive unit 25, the end additional rotation speed switch 28, and the fully closed operation switch 29 are included.

The 100 V AC power input to the power input section 21 is stepped down by the power transformer 22 and supplied to the stabilized power section 23. The stabilized power supply unit 23 is an MPU
24, and generates and outputs a DC power supply for supplying the power to the DC power supply.
The 100 V AC voltage input to the power input unit 21 is also supplied to the motor drive unit 25. Motor drive unit 2
5 controls the supply and stop of the AC voltage to the opening / closing motor 7 and the rotating motor 9. The motor drive unit 25
Based on the control signal output from the MPU 24, the control of the output of the AC voltage is performed, and the control of the forward / reverse rotation and the stop of the opening / closing motor 7 and the rotating motor 9 is performed.

The command unit 26 is a group of switches for commanding the opening / closing operation and the rotation operation of the louver 3, and includes an open switch 261, a stop switch 262, a close switch 263, a right switch 264, and a left switch 265. When the open switch 261 is pressed, the MPU 24 rotates the opening / closing motor 7 so that the louver 3 moves in the opening direction. When the close switch 263 is pressed, the MPU 24 rotates the opening / closing motor 7 so that the louver 3 moves in the closing direction. When the stop switch 262 is pressed,
The MPU 24 stops the rotation of the opening / closing motor 7 in order to stop the movement of the louver 3 in the opening direction or the closing direction.

When the right switch 264 is pressed, the rotation motor 9 is rotated to move the louver 3 rightward (clockwise).
Rotate to. When the left switch 265 is pressed, the MPU 24 rotates the rotating electric motor 9 to rotate the louver 3 to the left (counterclockwise). When the operator depresses the right switch 264 and the left switch 265, the MPU 24 stops the rotation of the rotating electric motor 9 and stops the rotation of the louver 3.

The command section 27 is a switch for setting the rotation angle of the louver 3 and an angle setting switch 2701
To 2715. The rotation angle of the louver 3 is “1” at the entire right position which is the end of the louver 3 in the clockwise direction, the angle (center) at which the louver 3 is perpendicular to the head rail 1 is “8”, and the left is The entire left position which is the end in the rotation direction is “1”.
5 ". In other words, the position from the entire right position to the entire left position is 1".
The management angle is divided into angle setting switches 270.
1-2715. For example, when the angle setting switch 2704 is pressed, the rotation motor 9 is rotated forward or reverse from the management angle at the time of the command so that the management angle becomes “4”, and the management angle of the louver 3 becomes “4”. The control is performed so that

The end additional rotation speed switch 28 is a 2-bit switch, and can set data of "0" to "3". With the value set in the end additional rotation speed switch 28, by increasing the management angle width at the entire right position (management angle is "1") and the entire left position (management angle is "15"), which are the ends. , The rotation range width can be increased beyond the full right position or the full left position.

The fully closed operation changeover switch 29 is connected to the louver 3
Is a changeover switch for setting the rotation angle of the louver 3 after reaching the fully closed position by the closing operation of "Memory",
"All left", "center" and "all right" settings are possible. When the fully-closed operation switch 29 is set to “memory”, the angular position of the louver 3 before the opening operation is started is stored. The angle position is set to the angle position before the start of the opening operation. When the fully-closed operation switch 29 is switched to “fully left”, the angular position of the louver 3 is set to the fully left position after the louver 3 is closed. Fully closed operation changeover switch 29
Is switched to "center", the angular position of the louver 3 is set to the central angle after the louver 3 is closed. When the fully closed operation switch 29 is set to “fully right”, the angle position of the louver 3 is set to the fully right position after the louver 3 is closed. Since the opening and closing operation of the louver 3 is normally performed with the angular position of the louver 3 set to the center angle, the fully closed operation changeover switch 29 is set to “center”.
In this case, the louver 3 is stopped without rotating after the louver 3 is closed.

The rotation detecting section 10 is provided with a slit 101
A and a non-slit 101B are constituted by a disk 101 and a photo interrupter 102 provided alternately around the entire circumference. A transmission type photointerrupter 102 is provided so as to sandwich the disk 101. The light from the light emitting element included in the photo interrupter 102
01A and the non-slit 101B are passed and cut off, and a light receiving element provided opposite to the light emitting element converts a light pulse into an electric pulse and outputs it. When the rotation motor 9 rotates, a pulse proportional to the rotation (hereinafter referred to as an encoder signal) is output from the rotation detection unit 10 and the MPU 2
4 is input. The MPU 24 detects the encoder signal and detects the angular position of the louver 3.

The starting point of the angular position data is the louver 3
The rotation position is “all right”, and the “all right” angular position data is “0”. Then, the count value "42" of the encoder signal when the rotating electric motor 9 is rotated from "all right" to "all left" at the other end is changed to "all left".
Angle position data. The relationship between the management angle data and the angle position data described above is defined as in the following equation.

Angle position data = (management angle−1) × 3 (1) That is, the management angle corresponding to the “all right” angle position data “0” is “1”, and the angle position data is “3”. "The management angle is incremented each time it increases. Therefore, when the angle position data is “21” which is “center”, the management angle is “8”, and when the angle position data is “42” which is “all left”, the management angle is “15”. "
Becomes

Further, since the hook member 4 suspending the louver 3 and the worm wheel for rotating the hook member 4 can idle, the end when the louver is rotated is “all right”.
Alternatively, the "all left" angle position can be arbitrarily determined. In the present embodiment, the angular position of the louver 3 is undetermined (undetermined mode) until the angular position of the louver 3 matches the angular position data. That is, at the time when the blinds are assembled by attaching the louvers 3 to the hook members 4, since the opening angles of the louvers 3 are various, the angle position data is undetermined. Then, the variation of the opening angle of the louver 3 is changed from the “all right” angle to the “all left” angle.
Since the angle is between the angles, if the rotation corresponding to the rotation amount (the entire rotation range amount) from the “all right” angle to the “all left” angle is performed, the end angle is opposite to the end in the rotation direction. Louver 3
Is the end angle in the rotational direction, and the other louvers 3 become the end in the rotational direction and then idle at that end to the end angle, so that all the louvers 3 become the end angles in the rotational direction. The opening angles of the louvers 3 are aligned. That is,
If there is a rotation operation of the louver in the undetermined mode, the angle position data is set to “0” when the rotation operation is the left rotation operation, and the angle position data is set to “42” when the rotation operation is the right rotation operation. Then, in the case of the left rotation operation, the angular position data is incremented every time the encoder signal changes to “42”.
, And in the case of the right rotation operation, the angular position data is decremented each time the encoder signal changes, and it is determined that the angular position data is determined when the angular position data becomes “0”.

There is play between the hook member 4 and the worm wheel due to the idling mechanism. When the louver 3 is rotated in a direction opposite to the rotation direction of the louver, the louver 3 rotates within the range of play. Therefore, a reverse play counter is provided to eliminate the play. The MPU 24 increments the value of the reverse play counter for each change in the encoder signal when the louver 3 rotates left after rotating right, and when the louver 3 rotates right after rotating the louver 3 each time the encoder signal changes. The value of the reverse play counter is decremented. In the present embodiment, the play amount is set to "2", and when the louver 3 is rotated leftward, the value of the reverse play counter is set when the louver 3 is clockwise rotated until the value of the reverse play counter becomes "2". Does not change the value of the angular position data until is becomes "0". By this processing, even if the louver 3 is reversed at an angular position other than the end,
The angular position data and the opening angle of the louver 3 will match.

In order to increase the control angle width at the end when the louver 3 rotates toward the end, an end addition counter is provided. When rotating the louver 3 counterclockwise, the MPU 24 increments the value of the edge addition counter in the angular position data “41” whose management angle is between “14” and “15”, and leaves the value of the angular position data as it is. And Then, the change of the encoder signal is counted until the value of the end addition counter reaches the value set in the end addition rotation speed switch 28, and the value of the end addition counter and the value set in the end addition rotation speed switch 28 are set. After the value matches, the increment of the value of the angle position data is restarted. Also, MP
When the louver 3 is rotated clockwise, U24 decrements the value of the edge addition counter in the angular position data “1” where the management angle is between “1” and “2”, and the value of the edge addition counter becomes After becoming “0”, the decrement of the angle position data is restarted.

FIG. 3 is a diagram showing the relationship among the encoder signal, the end addition counter, the reverse play counter, and the angular position data. As shown in the left rotation operation, when the rotation direction is switched from right rotation to left rotation, the value of the reverse play counter is incremented, and after the value of the reverse play counter becomes "2", the value of the angular position data is increased. Has begun to increment. Also, as shown in the clockwise operation,
When the rotation direction is switched from left rotation to right rotation, the value of the reverse play counter is decremented to "0", and then the decrement of the value of the angular position data is restarted. When the louver 3 is rotated counterclockwise as shown in the left rotation operation, the value of the edge addition counter is incremented when the angular position data is "41". Then, after the value of the end addition counter matches the value "1" set in the end addition rotation speed switch 28, the increment of the value of the angular position data is restarted.

Next, the opening and closing operation of the electric vertical blind according to the embodiment of the present invention will be described. Since the electric vertical blind according to the embodiment of the present invention mainly relates to the rotating operation of the louver, the opening and closing operation of the louver will be briefly described within a range related to the rotating operation.
When the close switch 263 of the command unit 26 is pressed, the MPU
24 determines that the closing operation signal has been input, and outputs a rotation signal for moving the louver 3 in the closing direction to the motor driving unit 25. The motor drive unit 25 rotates the opening / closing motor 7 in a direction to move the louver 3 in the closing direction. When the opening and closing motor 7 rotates, the output shaft 1 of the opening and closing motor 7
The opening / closing transmission mechanism 13 connected to the opening / closing mechanism 2 rotates the opening / closing screw shaft 6, the master carrier 5 moves in the direction of the fully closed position, and each carrier 2 connected to the master carrier 5 by a spacer is also connected to the master carrier 5. It moves in conjunction with.

When the master carrier 5 moves to the fully closed position, the fully closed limit switch 16 is actuated by a proximity switch operating member provided above the master carrier 5, and the fully closed limit switch 16 is turned off. MP
U24 detects that the fully closed limit switch 16 is turned off, stops the application of the AC voltage to the motor 7 for opening and closing, and stops the rotation of the motor 7 for opening and closing. Normally, a fully-closed operation as described later is performed. However, immediately after assembling of the blind, since the angular position data is undetermined, the rotation operation in the fully-closed operation is not performed. In this case, since the rotating operation is not performed, the opening angle of the louver 3 of the blind is undefined, and the louver 3 moves to the fully closed position and stops. Next, the rotation operation of the louver 3 will be described with reference to the flowchart shown in FIG. First, the right switch 264 and left switch 265 of the command unit 26 or the angle setting switches 2701 to 2701 of the command unit 27
2715 is pressed, and it is determined whether a rotation operation signal is input to the MPU 24 (S1). If there is a rotation operation signal from the command unit 26 (S1, yes), it is determined whether the louver 3 is at the fully closed position (S2). When the louver 3 is at the fully closed position (S2, Yes), it is determined whether or not the end angle of the louver 3 is determined (S3). Louver 3
If the end angle has not been determined (S3, No), it is determined that the right switch 264 is operated to rotate right or the left switch 2
It is determined whether the operation is the left rotation operation by the command 65 or the angle setting operation by the command unit 27 (S4). In the case of the angle setting operation, the process is terminated as it is.

If it is determined in step S4 that the operation is a left rotation operation, "0" is set in the angular position data, and "0" is set in the reverse play counter (S5). And
The rotation motor 9 is rotated by the motor drive unit 25, and the louver 3 is rotated counterclockwise (S6), and the process ends. If it is determined in step S4 that the operation is a right rotation operation of the louver 3, "42" is set in the angular position data and "2" is set in the reverse rotation play counter (S7). Then, the rotating motor 9 is rotated by the motor driving unit 25, and the louver 3 is rotated.
Is rotated right (S8), and the process ends.

In step S2, if the louver 3 is not at the fully closed position (S2, No), the process is terminated. If the end angle of the louver 3 is determined in step S3 (S3, Yes), the right switch 264 is set.
Then, it is determined whether the operation is a right rotation operation, a left rotation operation with the left switch 265, or an angle setting operation with the command unit 27 (S9). In the case of the left rotation operation by the left switch 265 (S9, left), the MPU 24 causes the motor driving unit 25 to rotate the rotating electric motor 9 and the louver 3 to the left (S6), and ends the processing. In step S9, in the case of a right rotation operation by the right switch 264 (S9, right), the MPU 24 causes the motor driving unit 25 to rotate the rotation motor 9 and rotate the louver 3 right (S9).
8), end the process.

In step S9, the command unit 27
(S9, angle setting), the angle setting value set in the command unit 27 is converted into angle position data based on the relationship between the management angle and the angle position data described above. (S10). Then, the rotation direction of the louver 3 is determined from the relationship between the current angular position data and the stop angular position data (S11).

In step S11, if the angle position data is smaller than the stop angle position data, the MPU 24
The rotation motor 9 is rotated by the motor drive unit 25, and the louver 3 is rotated counterclockwise (S6), and the process ends. If the angle position data is larger than the stop angle position data in step S11, the MPU 24
Then, the rotation motor 9 is rotated, and the louver 3 is rotated right (S8), and the process is terminated. If the angle position data and the stop angle position data are equal in step S11, the process ends.

If there is no rotation operation signal in step S1 (S1, no), it is determined whether or not an angle setting operation is being performed (S12). If it is determined in step S12 that the angle setting operation is being performed (S12, Yes), the process ends. If the angle setting operation is not being performed (S1)
2, No), it is determined whether or not the louver 3 is rotating (S13). If it is determined in step S13 that the louver 3 is not rotating (S13, No), the process ends. In step S13, the louver 3
(S13, Yes), the MPU 24
Stops the rotation of the rotating electric motor 9 by the electric motor driving unit 25 (S14), and ends the processing.

FIG. 5 is a flowchart for explaining a processing procedure of the rotation operation of the louver 3 of the electric vertical blind according to the present embodiment. First, it is determined whether or not the encoder signal from the rotation detection unit 10 has changed (S2).
1). If the encoder signal does not change (S21, no change), the process ends. When the encoder signal changes (S21, change), it is determined whether the rotation direction of the louver 3 is left rotation or right rotation (S22). If the rotation direction of the louver 3 is counterclockwise (S22, left), it is determined whether or not the value of the reverse play counter is "2" (S2).
3). If the value of the reverse play counter is not "2", the value of the reverse play counter is incremented (S24), and the process ends.

If the value of the reverse play counter is "2" in step S23, the angular position data is set to "4".
It is determined whether or not the value is “1” (S25). When the angular position data is “41”, it is determined whether or not the value of the end addition counter matches the value set in the end addition rotation speed switch 28. If the value of the edge addition counter does not match the set value, the value of the edge addition counter is incremented (S27), and the process ends. If the values match, the process proceeds to step S28.

In step S25, if the angular position data is not "41", the value of the angular position data is incremented (S28), and it is determined whether the angular position data is "40" or "41". (S29). If the angle position data is "40" or "41", the processing is terminated. Also, the angle position data is not “40” but “4”.
If it is not 1 ", it is determined whether or not the end angle is determined (S30).

If the end angle has not been determined (S30,
No), it is determined whether or not the angular position data is "42" (S31). When the angle position data is “42”,
The rotation end determination flag is set to "1" (S32), and the motor drive unit 25 stops the rotation of the rotation motor 9 (S4).
8), end the process.

If it is determined in step S30 that the end angle has been determined (S30, Yes),
And in step S31, the angular position data is "4".
If it is determined that it is not 2 ", the process proceeds to step S42.

If it is determined in step S22 that the rotation direction of the louver 3 is clockwise (S22, right),
It is determined whether or not the value of the reverse play counter is "0" (S33). If the value of the reverse play counter is not "0", the value of the reverse play counter is decremented (S3).
4), end the process.

If the value of the reverse play counter is "0" in step S33, the angular position data is set to "1".
Is determined (S35). If the angle position data is "1", it is determined whether or not the value of the additional edge counter matches the value set in the additional edge speed switch 28 (S36). If the value of the edge addition counter does not match the set value, the value of the edge addition counter is decremented (S37), and the process ends.

If the angular position data is not "1" in step S35, and if it is determined in step S36 that
If the value of the edge addition counter matches the set value, the process proceeds to step S38.

In step S38, the angle position data is decremented, and it is determined whether the angle position data is "1" or "2" (S39). If the angle position data is "1" or "2", the process is terminated. If the angle position data is neither "1" nor "2", it is determined whether or not the end angle is determined (S40). If the end angle is determined (S40, Ye
s), and proceed to step S42. If the end angle has not been determined (S40, No), it is determined whether or not the angular position data is "0" (S41). If the angle position data is not "0", the process proceeds to step S42. Also,
If the angle position data is "0", "1" is set to the rotation end determination flag (S32), the rotation of the rotating electric motor 9 is stopped by the electric motor driving unit 25 (S48), and the process ends.

In step S42, it is determined whether or not the aligning operation is performed at the end of the louver 3. If it is a louver alignment operation (S42, Yes), the value of the louver alignment counter is incremented (S43), and it is determined whether or not the louver alignment counter is "44" (S44). If the value of the louver alignment counter is not "44", the process is terminated. If the value of the louver alignment counter is "44", the electric motor drive unit 25 stops the rotation of the electric motor 9 for rotation (S48), and ends the processing.

In step S42, if it is not the louver aligning operation (S42, No), it is determined whether or not it is the louver 3 angle setting operation (S45). If it is not the angle setting operation (S45, No), it is determined whether or not a stop operation signal has been received from the command unit 26 (S46). If the stop operation signal has been received (S46, reception), the motor drive unit 25 causes the rotation motor 9 to stop rotating (S48),
The process ends. If the stop operation signal has not been received (S46, non-reception), the process ends.

If it is determined in step S45 that the operation is an angle setting operation (S45, Yes), it is determined whether or not the angle position data matches the stop angle position data (S4).
7). If the angle position data and the stop angle position data match, the motor drive unit 25 stops the rotation of the rotating electric motor 9 (S48), and ends the processing. Step S4
If the angle position data does not match the stop angle position data at 7, the process is terminated.

Based on the processing procedure described with reference to FIGS. 4 and 5, a specific operation of the electric vertical blind according to the present embodiment will be described below.

(Right switch 264 or left switch 26
5) For example, when the left switch 265 of the command unit 26 is pressed, the MPU 24 determines that there is a rotation operation signal (S1, present), and the current position of the louver 3 is the fully closed position. Is determined (S2). Since the rotation of the louver 3 is performed when the louver 3 is in the fully closed position (S2, Yes), it is next determined whether or not the end angle is determined (S3). When the electric vertical blind has just been assembled and the louver 3 is stopped at the fully closed position, the end angle is not determined (S3,
No), the rotation direction of the louver 3 is determined (S4). Since the left switch 265 is depressed (S4, left), "0" is set in the angular position data, "0" is set in the reverse play counter (S5), and the rotation motor 9 is set in the motor drive unit 25. Rotate to the left (S6), and end the process shown in FIG.

Since the rotation detection unit 10 outputs an encoder signal due to the left rotation of the rotating electric motor 9, it is determined in step S21 that the encoder signal has changed (S21, change), and the rotation direction of the louver 3 is determined. (S22). Since the left switch 265 has been pressed,
It is determined that the rotation direction of the louver 3 is counterclockwise (S2
2, left).

Since the value of the reverse play counter is "0" immediately after assembly, the value of the reverse play counter is "2".
Is not determined (S23), the value of the reverse rotation play counter is incremented (S24), and the process ends.

After the encoder signal is changed again, the same processing is performed. When the value of the reverse play counter becomes "2" (S23, = 2), since the angular position data is "0". , It is determined that the angular position data is not “41”, and the angular position data is incremented (S2).
8).

Next, if the angle position data is not "40",
It is determined that it is not “41”, and it is determined whether or not the end angle is determined (S30). The end angle is not determined (S30, No), the angular position data is not "42" (S31), and the louver alignment operation is not (S42, N).
o) Since it is not the angle setting operation (S45, No) and the stop operation signal has not been received (S46, non-reception), the process is terminated as it is.

The same processing is repeated every time the encoder signal changes. When the value of the angular position data becomes "40",
In step S29, it is determined that the angular position data is "40", and the process ends.

With the next change in the encoder signal, the value of the angular position data is incremented to "41" (S28), and it is again determined in step S29 that the angular position data matches "41", and the process is terminated. Is done.

Based on the next change in the encoder signal, it is determined that the angular position data is "41" (S25), and whether the value of the end additional counter matches the value set in the end additional rotation speed switch 28 or not. It is determined whether or not it is (S26). If "1" to "3" is set in the end additional rotation speed switch 28, steps S25 to S2 are performed by the number of times of the set value.
7 is performed, and the value of the angular position data does not change during this process. By this processing, the idling amount at the end can be added, and the degree of closing of the louver can be improved.

If it is determined in step S26 that the value of the additional end counter coincides with the value set in the additional end speed switch 28 by the next change in the encoder signal, the value of the angular position data is incremented again. (S28), and the value of the angle position data becomes "42". Then, in S31, the value of the angle position data is “42”.
Is determined, the rotation end determination flag is set to "1" (S32), the motor drive unit 25 stops the rotation of the rotating electric motor 9 (S48), and the process ends.

With the above processing, the opening angles of all the louvers 3 are aligned with the entire left angle. Then, "42" is set in the angular position data, and the subsequent rotation operation is performed based on the angular position data.

In the above description, the left switch 265
Was pressed, but if the right switch 264 was pressed, in steps S4 and S22,
The rotation direction is determined to be right rotation, and the same processing as the above-described left rotation is performed. Therefore, this detailed description will not be repeated.

In the above-described left rotation operation of the louver 3, it is assumed that the left switch 265 is continuously pressed. However, if the operation of the left switch 265 is stopped before the angular position of the louver 3 becomes the full left angle, it is determined that there is no rotation operation signal (S1,
None), it is determined that the angle setting operation is not being performed (S12, N
o), it is determined that the louver 3 is rotating (S1).
3, Yes), the motor driving unit 25 stops the rotation of the rotating electric motor 9 (S14), and ends the processing.

After the louver 3 is stopped at an intermediate angle other than the end angle by this stop operation, if a rotation operation reverse to the previous rotation direction is performed, step S23 or S23 is performed.
At 33, the reverse process is performed on the reverse play counter. That is, when the louver 3 is rotated to the left and then to the right, the value of the reverse rotation play counter is "2" due to the left rotation.
Is determined that the reverse play counter is not "0",
The value of the reverse rotation play counter is decremented (S34),
The process ends. Therefore, in the case where the rotation of the louver 3 is reversed, the processing for removing play is always performed, and the value of the angular position data and the opening angle of the louver 3 can be correlated.

After the value of the reverse rotation play counter is incremented (S24) or decremented (S34), the stop operation (S48) is not performed.
The rotating electric motor 9 is not stopped while the play is removed. Similarly, the rotation of the rotating electric motor 9 is not stopped during the additional rotation at the end (S27 or S37). Therefore, the louver does not stop in the play area, and the next operation can be performed immediately.

If the end angle has been determined (S3, Yes), the rotation operation is determined in step S9, so that the angular position data and the value of the reverse play counter are not initialized.

As described above, it is not necessary to adjust the louver 3 at the end position, and it is possible to provide an electric vertical blind excellent in operability.

(Processing when Angle Setting Switches 2701 to 2715 are Pressed) When the end angle is not fixed (S3, No), the angle setting switches 2701 to 2715
Is pressed (S4, angle setting), the process is terminated as it is, and no angle setting operation is performed.

When the end angle is determined (S3,
Yes), it is determined that the operation is an angle setting operation (S9, angle setting), and a value obtained by converting the value set in the angle setting switches 2701 to 2715 into angle position data using the above-described relationship between the management angle and the angle position data Is set as stop angle position data (S10). If the angle position data is smaller than the stop angle position data, the set angle is entirely to the left of the current angle position of the louver 3, so the motor drive unit 2
5, the rotation motor 9 is rotated counterclockwise (S6), and the process ends. If the angular position data is larger than the stop angular position data, the set angle is all the right side of the current angular position of the louver 3, so the electric motor drive unit 25 rotates the electric motor 9 for rotation to the right (S8), and the process proceeds. To end. If the angle position data and the stop angle position data are the same, the process ends.

The process shown in FIG. 5 is performed each time the encoder signal changes due to the rotation of the rotating motor 9, and if the angular position data and the stop angular position data match (S4).
7) The motor drive unit 25 causes the rotation motor 9 to stop rotating (S48), and the process ends. By the above processing,
The angle position of the louver 3 is set to the angle setting switches 2701 to 27
When the angle matches the set angle set to 15, the rotation of the rotating electric motor 9 is stopped. As described above, since the louver 3 can be set at an arbitrary angular position, it is possible to provide an electric vertical blind excellent in operability.

(Louver alignment operation at the time of opening operation of the louver 3)
When the open switch 261 is pressed, the MPU 24 first performs a louver aligning operation, and then sets the angular position of the louver 3 to the “center” angle. As an initial setting, it is determined based on the current angular position data whether the angular position of the louver 3 is all the right side or all the left side of the “center” angle. If the angle position data is smaller than “21”, it is determined that the object is on the entire right side. If the angle position data is “21” or more, it is determined that the object is on the entire left side. Then, “0” is set in the louver alignment counter. When it is determined that the angular position of the louver 3 is on the entire left side, the electric motor drive unit 25 causes the electric motor for rotation 9 to rotate clockwise. If it is determined that the angular position of the louver 3 is entirely on the right side, the motor driving unit 25 rotates the rotating electric motor 9 counterclockwise.

The rotation of the rotating electric motor 9 changes the encoder signal output from the rotation detecting unit 10 (S21,
Change), and the process shown in FIG. 5 is performed. Step S30
Alternatively, in S40, it is determined that the end angle has been determined, and it is determined that the operation is a louver alignment operation (S42, Ye).
s), the value of the louver alignment counter is incremented (S43). Then, the value of the louver alignment counter becomes “4”.
If it is not 4 "(S44), the process is terminated.
If the value of the louver alignment counter is "44" (S
44), the motor drive unit 25 stops the rotation of the rotating electric motor 9 (S48), and the process ends.

By the above processing, the louver 3 has been rotated by an angle corresponding to all right to all left, and the angles of all the louvers 3 are aligned at any end. However, since the louver 3 is rotated toward the far end, the idling amount of the louver 3 at the end is smaller than when the louver 3 is rotated toward the near end. By reducing the amount of idling at the end in this way, the load on the idling mechanism can be reduced,
It is possible to extend the life of the idling mechanism.

Next, another process of the louver alignment operation will be described. As an initial setting, it is determined based on the current angular position data whether the angular position of the louver 3 is all the right side or all the left side of the “center” angle. If it is determined that the angular position of the louver 3 is on the entire left side, the motor drive unit 2
5 rotates the rotating electric motor 9 counterclockwise. If it is determined that the angle position of the louver 3 is entirely on the right side, the motor driving unit 25 rotates the rotating electric motor 9 clockwise. That is, the louver 3 is rotated toward the near end.

To rotate the louver 3 all the way to the left,
An angle setting operation for setting the above-described angle set value to “15” is performed. When rotating the louver 3 all the way to the right,
An angle setting operation for setting the above-described angle set value to “1” is performed. By this processing, the louver 3 stops at the near end.

Next, the louver 3 is rotated toward the far end.
Due to the rotation of the rotating electric motor 9, the encoder signal output from the rotation detecting unit 10 changes (S21, change), and FIG.
Are performed. Step S30 or S40
In, it is determined that the end angle has been determined, the louver alignment operation is determined (S42, Yes), and the value of the louver alignment counter is incremented (S43).
Then, if the value of the louver alignment counter is not "44" (S44), the process ends as it is. If the value of the louver alignment counter is "44" (S44), the motor driving unit 25 causes the rotation motor 9 to stop rotating (S4).
8), end the process.

The louver 3 scattered on the side of the near end by the rotating operation to the first near end is made uniform to the opening angle of the near end by the idling operation on the near end. And
The louver 3 which has been dispersed on the far end side by the rotation operation to the opposite far end portion has an opening angle of the far end portion due to idling at the far end portion. At the time of the idling operation at the far end, since the louvers 3 that have scattered on the near end side no longer vary, all the louvers 3 have the same opening angle at the far end. When the louver 3 has little variation, the idling operation at the end portion becomes small by this aligning operation, the load on the idling mechanism can be reduced, and the life of the idling mechanism can be extended.

After the louver alignment operation described above is completed, an operation of setting the angular position of the louver 3 to the “center” angle is performed. This operation is the same as the operation in which the angle setting value in the above-described angle setting operation is “8 (management angle)”. Therefore, the rotation stops when the louver 3 reaches the “center” angle.

Finally, when the louver 3 is opened and the master carrier 5 moves to the fully open position, the fully open limit switch is turned off, and the MPU 24 causes the motor drive unit 25 to stop the rotation of the open / close motor 7. . As a result, the louvers 3 are gathered in the fully open direction, and the blind is opened.

(Operation at Fully Closed) When the close switch 263 is pressed, the motor drive unit 25 rotates the open / close motor 7 to move the louver 3 in the closing direction as described above. When the louver 3 reaches the fully closed position, the opening / closing motor 7 is stopped, and the fully closed operation is performed based on the setting of the fully closed operation switch 29.

When the fully closed operation changeover switch 29 is set to "center", the louver 3 is not rotated. That is, in the closing operation of the louver 3, the closing operation is performed while the louver 3 is kept at the "center" angle.

When the fully-closed operation switch 29 is set to "memory", the angular position of the louver 3 before the opening operation of the louver 3 is performed is stored, and the closing operation of the louver 3 is completed. Later, the stored angular position of the louver 3 is set.

When "all right" or "all left" is set in the fully closed operation changeover switch 29, "all right" or "all left" is set as the angle setting value. The operation is performed. In this manner, the louver can be closed and rotated only by the closing operation.

In the electric vertical blind according to the present embodiment described above, the end-side additional rotation speed switch 2
Although the end additional rotation number in the end side direction can be set at 8, the entire rotation range of the louver 3 can be adjusted by setting the additional end rotation number on the opposite side to the end side direction. It becomes possible.

Although the "all right" and "all left" angular positions are determined only by the encoder signal from the rotation detecting section 10, a microswitch for detecting "all right" and "all left" or a proximity switch is used. A switch or the like may be used in combination.

In the louver 3 angle setting operation,
The management angle has 15 steps from "1" to "15", but the angle setting operation may be performed more finely using the angle position data itself.

Although the rotation detecting section 10 uses the single-layer encoder system, it is also possible to use two discs 101 and use the two-layer encoder system to determine the rotation direction.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a schematic configuration of an electric vertical blind according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a schematic configuration of main electric components of the electric vertical blind according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a relationship among an encoder signal, an end addition counter, a reverse play counter, and angular position data.

FIG. 4 is a flowchart for explaining a rotation operation of the louver 3;

FIG. 5 is a flowchart illustrating a processing procedure when an encoder signal output from the rotation detection unit 10 changes.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head rail 2 Carrier 3 Louver 4 Hook member 5 Master carrier 6 Opening / closing screw shaft 7 Opening / closing motor 8 Rotating operating shaft 9 Rotating motor 10 Rotation detecting unit 11 Control unit 13 Opening / closing transmission mechanism 15 Rotation transmission mechanism 16 All Close limit switch 17 Fully open limit switch 21 Power supply input unit 22 Power supply transformer 23 Stabilized power supply unit 24 MPU 25 Motor drive unit 26, 27 Command unit 28 Additional end rotation switch 29 Fully closed operation changeover switch 101 Disk 102 Photo interrupter

Claims (11)

[Claims] 1. A plurality of louvers which are suspended and idle at ends, an electric motor for rotating the plurality of louvers, a driving means for rotating the electric motor, and an instruction to rotate the plurality of louvers. Instruction means for outputting a detection signal each time the electric motor rotates by a first predetermined angle; and when the instruction means gives an instruction for rotation, the driving means transmits the electric motor to the driving means. Control means for controlling the louver angle position based on the end angle position and the detection signal output by the angle detection means, by rotating the end angle position by a second predetermined angle. blind. 2. The control means, when receiving a rotation instruction from the instruction means, causes the drive means to rotate the electric motor, and counts a detection signal output by the angle detection means to determine a predetermined value. The electric vertical type according to claim 1, wherein when the entire rotation range value is reached, an end angle position is determined, and the angle position of the louver is controlled based on the end angle position and a detection signal output by the angle detection means. blind. 3. The control means does not count the detection signal output by the angle detection means a predetermined number of times when the driving means reverses the electric motor.
The described electric vertical blind. 4. The electric vertical blind further includes end addition setting means for setting addition of a count of a detection signal output by the angle detection means at an end angle position, wherein the control means comprises: When the angle position of the louver reaches the end angle position, after counting the number of detection signals output by the angle detection means for the number of times set in the end addition setting means, the motor means is provided to the drive means. The electric vertical blind according to any one of claims 1 to 3, wherein rotation of the electric vertical blind is stopped. 5. The control device according to claim 1, wherein the louver alignment operation is
The far end is determined from the angular position of the louver, the driving means rotates the motor in the direction of the far end, and counts a detection signal output by the angle detecting means to determine a predetermined total rotation range. The electric vertical blind according to claim 1, wherein the drive unit stops the electric motor when the value becomes a value. 6. The control means according to claim 1, further comprising:
The near end is determined from the angular position of the louver, the driving means rotates the electric motor in the direction of the near end, and when the angular position of the louver becomes the near end position, the driving means Stopping the motor, causing the drive means to rotate the motor in the direction of the far end, counting the detection signal output by the angle detection means, and when the total rotation range reaches a predetermined value, the drive means The electric vertical blind according to claim 1 or 2, wherein the electric motor is stopped. 7. The control means, when receiving an instruction to stop rotation of the plurality of louvers from the instruction means, sets the angular position of the louver within a predetermined range from an end angular position in the rotational direction of the louver. 3. The electric vertical blind according to claim 1, wherein in some cases, the driving unit stops the rotation of the electric motor after the angular position of the louver becomes an end angular position in the rotation direction of the louver. 4. 8. When the control means receives an instruction to stop rotation of the plurality of louvers from the instruction means, the control means does not count the detection signal output by the angle detection means for the predetermined number of times. 4. The electric vertical blind according to claim 3, wherein the drive unit stops the rotation of the electric motor after the processing is completed. 9. The electric vertical blind further includes an angular position setting unit for setting an angular position of the plurality of louvers, wherein the control unit includes a setting value set in the angular position setting unit and the set value. Determining the direction of rotation of the louver from the difference from the angular position of the louver, and rotating the electric motor in the determined direction of rotation by the driving means so that when the angular position of the louver reaches the set value, the driving means The electric vertical blind according to claim 1 or 2, wherein the electric motor is stopped. 10. A plurality of louvers that are suspended and idle at ends, a first electric motor for rotating the plurality of louvers, and a second electric motor for opening and closing the plurality of louvers by rotation. A driving unit for rotating the first electric motor and the second electric motor; an instruction unit for instructing opening and closing of the plurality of louvers; and detecting that the plurality of louvers are at a fully closed position. Position detecting means for outputting a detection signal every time the first electric motor rotates by a predetermined angle, and the angular position of the louver when the plurality of louvers are in the fully closed position Angular position setting means for setting the position, and when the instructing means instructs a closing operation, the driving means rotates the second electric motor in a closing direction of the plurality of louvers to detect the fully closed position. By means Then, when the fully closed position is detected, the driving means stops the rotation of the second electric motor, and then the first electric motor is rotated, based on a detection signal output from the angle detecting means. A control means for controlling the determined louver angular position and the angular position set by the angular position setting means to coincide with each other. 11. The electric vertical blind according to claim 10, wherein the angle position set by the angle position setting means is an end angle position of a louver.