JPH10184249A - Mobile controller and electric curtain device making use thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to detect a draw-out limit point for a curtain drawn from a winding roll based on diving time of a synchronous motor for driving the winding roll without using any special sensor. SOLUTION: A winding roll 5 for winding a curtain 4 is rotated with a synchronous motor M, and a rewinding limit position in the case the curtain 4 is rewound on the winding roll 5 is detected by turning on a proximity switch incorporated in a bearing member 2 with a magnetic incorporated in a weight bar 9. While, a draw-out limit position in the case the curtain 4 is drawn from the winding roll 5 is regulated on the basis of time for driving a synchronous motor M during the draw-out of the curtain from the rewinding limit position to the draw-out limit position required by a user and is stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movement for controlling movement of an object such as an electric shutter, a shutter, a roll curtain, a light-shielding screen, or a screen for projecting an image, which is used for an entrance, a window, etc. of a building. The present invention relates to a control device and an electric curtain device using the same.

[0002]

2. Description of the Related Art Conventionally, various kinds of object movement control devices or electric curtain devices have been proposed. For example, a conventionally known electric roll curtain device has a width corresponding to a window width and a height corresponding to a window height. The belt-shaped curtain having a length is wound on one end side thereof into a cylindrical take-up roll incorporating a coil spring, and the other end is provided with a weight bar as a free end. Is driven forward by a motor to rotate the take-up roll forward against the elasticity of the coil spring incorporated therein, and the curtain is fed out from the take-up roll while accumulating repulsive force in the spring. By driving the motor in the reverse direction, the stored repulsive force of the coil spring is released, and the elasticity of the coil spring is used to rewind the curtain to the winding roll.

In such a conventional electric roll curtain device, the forward and reverse drive of the motor, in other words, the opening and closing of the curtain is performed by a remote control operating device or the like. The limit points for unwinding the curtain and the unwinding point for rewinding the curtain to the take-up roll are limit switches located above and below the side frame of the window, which is the movement area of the weight bar provided at the lower end of the curtain. Or by arranging a proximity switch, and the limit switch or the proximity switch is operated by a weight bar to automatically stop the motor (Japanese Patent Laid-Open No. 6-108).
764, JP-A-7-54563).

[0004]

However, in such a conventional electric roll curtain device, in addition to two limit switches or proximity switches, a predetermined bar is always provided so that the weight bar can be connected to and separated from the limit switch or proximity switch. A side guide to the weight bar is required so as to ascend and descend along the route, so it is inevitable that the cost will increase, and when changing the descent limit, the position of the limit switch or proximity switch must be changed, but the position Since the change operation is not easy and the limit switch or the proximity switch is arranged above and below, there is a problem that there is a problem in the interior design.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to determine a movement limit point at which an object should be stopped while the object moves from a predetermined reference point to a movement limit point. By specifying the drive time of the synchronous motor, side guides are not required, the number of sensors can be reduced, the cost can be greatly reduced, and the set value of the drive time of the synchronous motor can be changed. Another object of the present invention is to provide a movement control device that can easily change the setting of the movement limit point.

A second object of the present invention is to allow the lower limit of the curtain member as an object to reach the unwinding limit point from the reference point set on the rewind limit point side. By storing the driving time of the synchronous motor in the storage means, a special sensor for the feeding limit point and a side guide for the weight bar become unnecessary.
It is an object of the present invention to provide an electric curtain device in which a setting limit point of the curtain member can be freely changed.

[0007]

A movement control device according to a first aspect of the present invention uses a synchronous motor to move an object from a first position as a reference point to a second position as a predetermined movement limit point. In the movement control device including a control unit that moves and stops positioning when the object reaches the movement limit point, the control unit moves the second position from the first position to the second position. Storage means for storing the driving time of the synchronous motor required to move an object, and a time keeping means for measuring the driving time of the synchronous motor; and a time value measured by the time keeping means and stored in the storage means. Means for stopping the synchronous motor based on a result of comparison with the set time.

In the first invention, the first point, which is the reference point,
When the target object is moved from the position to the second position, which is a predetermined movement limit point, and the position is stopped at that position, the frequency is constant when the commercial power supply is used, and the rotational speed of the synchronous motor is also constant. Since the moving distance of the object corresponds to the driving time of the synchronous motor,
Is stored in the storage means as the driving time of the synchronous motor required to move the object from the first position to the second position, and the stored value and the synchronous value obtained by the subtraction means are stored. By stopping the synchronous motor based on the result of comparison with the difference between the forward rotation drive time and the reverse rotation drive time of the motor, the object can be automatically stopped accurately at the second position, that is, the movement limit point.

An electric curtain device according to a second aspect of the present invention is a winding roll that is rotatably supported in a forward and reverse direction, and is wound around the winding roll. An electric motor including a curtain member that is fed out and rewound therefrom, a synchronous motor that drives the take-up roll forward and reverse, and a control unit that controls switching between forward and reverse rotation of the synchronous motor. A curtain device, wherein the control unit includes:
Mode setting means for setting the unwinding limit point of the curtain member, a setting mode for storing, and in the setting mode, the unwinding limit point of the curtain member from the reference point set on the rewind limit side to the unwinding limit point. Storage means for storing the drive time of the synchronous motor until the curtain member reaches, subtraction means for obtaining a difference between the forward drive time and reverse drive time of the synchronous motor, and a difference obtained by the subtraction means and Means for stopping the synchronous motor based on a result of comparison with the time stored in the storage means.

In the second invention, the length from the predetermined reference point to the unwinding limit point on the side of the rewind limit point is defined as:
The drive time of the synchronous motor required to move the curtain member from the former to the latter is defined, and this is stored in the storage means, and thereafter, the forward drive time and the reverse drive time of the synchronous motor are subtracted by the subtraction means. And the difference between
The feeding limit point can be automatically detected based on the result of comparison with the stored value, so that a sensor for detecting the feeding limit point is not required, and a side guide member for guiding the moving range of the curtain member is not required. As a result, significant cost reduction can be achieved.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an electric roll curtain device according to an embodiment of the present invention; FIG. 1 is a front view showing a configuration of an electric roll curtain device to which a movement control device and an electric curtain device according to the present invention are applied, and an electric roll curtain device according to an embodiment of the present invention is mounted on an upper frame W of a window. is set up. The electric roll curtain device supports a take-up roll 5 on which a curtain 4 is wound around a mounting frame 1 fixed to an upper frame W of a window via supporting members 2 and 3 and supports the take-up roll 5. It is connected to a synchronous motor M provided on the member 2, and is configured to instruct a control unit of the synchronous motor M to perform a forward rotation, a reverse rotation drive, and a stop instruction through an operation device 6 for remote control.

FIG. 2 is an enlarged sectional view of the mounting frame 1. The mounting frame 1 is configured as a long object made of aluminum or the like, and has mounting ribs 11, 11 formed on both sides of an upper edge portion.
Auxiliary mounting member (not shown) fixed to upper frame W via
It is designed to be removably attached to. The inside of the mounting frame 1 is formed substantially hollow in which reinforcing ribs 12 and 13 are arranged, and a space 14 for mounting a control board 70 to be described later and guide locking pieces 21 and 31 for positioning are engaged. And a notch 18 for engaging a power supply head 25 of a synchronous motor M described later.

FIG. 3 is a partially enlarged sectional view showing a supporting structure on the right end side of the winding roll 5, FIG. 4 is a partially enlarged sectional view showing a supporting structure on the left end side of the winding roll 5, and FIG. 2 is an enlarged right side view and an enlarged bottom view, and FIG.
7 is a left side view of the support member 3 similarly. The support members 2 and 3 are formed in substantially the same shape using a metal plate such as stainless steel or iron.
, A synchronous motor M and a motor cover 28 are fixed to the inner surface thereof, while the support member 3 has a mounting shaft 34 mounted on the inner surface thereof.

The space 1 of the mounting frame 1 is provided above the support member 2.
5 and a long nut 22 is projected at four places on the inner surface of the lower half portion not opposed to the mounting frame 1, and is provided with a synchro as shown in FIGS. The flange 24 and the motor cover 28 of the eggplant motor M pass through and are detachably fixed with screws 23b.
, A mounting shaft 34 is fixed with a plurality of rivets 33a. Further, a square hole 32 is opened at a position facing the core hole of the mounting shaft 34, and an adjusting knob 45b constituting a clutch shaft 45 for adjusting the spring strength, which will be described later, is locked in a state where it is not rotated. I have

As shown in FIG. 6, the synchronous motor M has a flange 24 projecting therefrom, a power supply head 25 formed at an upper portion thereof, and an output shaft 26 provided with an output shaft 26.
The collar 27 is externally fitted and fixed. The motor cover 28 is made of a synthetic resin, and is formed in an upward U-shape so as to cover side peripheral surfaces extending to the left, right and bottom excluding the upper portion of the synchronous motor M as shown in FIG. The bracket 28a is formed in a protruding manner, and each has a hole 28b facing the hole of the bracket 24 of the synchronous motor M.
Are formed.

Proximity switches SW1 to SW3 are provided on the inner surface of the left and right side walls and the inner surface of the bottom wall of the motor cover 28, and the optical sensor PS is provided on the outer surface of the bottom wall as shown in FIGS.
And an LED (red). The reason why the plurality of proximity switches SW1 to SW3 are provided is that the same component can be used even when the support member 3 is installed in the downward direction or in any of the left and right directions.

The take-up roll 5 is formed in a hollow cylindrical shape by using a metal such as aluminum, and has both ends as shown in FIGS.
As shown in FIG. 3, the roll receiving members 41 and 42 are respectively fitted and fixed therein. One end of the roll receiving members 41 and 42 is connected to the output shaft 26 of the synchronous motor M disposed on the support member 2 as shown in FIG. The other end is supported by a fitting shaft 34 fixed to the support member 3 via a roll receiving member 42 via a bearing 35 as shown in FIG. I have.

The roll receiving members 41 and 42 have substantially the same cylindrical shape, have an outer diameter substantially equal to the inner diameter of the winding roll 5, and adjust the inner diameter to the outer diameter of the collar 27 or the mounting shaft 34. The inner end side fitted in 5 has a reduced diameter. In the roll receiving member 41, an engagement recess 41a into which the locking projection 27a of the collar 27 is engaged is formed in the reduced diameter portion,
The locking projections 27a of the collar 27 are engaged with the engagement recesses 41a to prevent the collar 27 from rotating.

On the other hand, one end of a coil spring 44 provided on the support shaft 43 is connected to the outer periphery of the inner end of the roll receiving member 42. The support shaft 43 is formed of an aluminum or resin pipe. One end of the support shaft 43 is fitted over the mounting shaft 34 and the roll receiving member 42 to the tip of a clutch shaft 45 inserted therein, and is fitted to the knock pin 45f. And is integrally fixed to the clutch shaft 45,
The other end is supported by a bearing 47 inside a bush 46 fitted inside the winding roll 5.

The support shaft 43 having the bush 46 penetrated therethrough
A washer 48 is disposed in contact with the side surface of the bush 46 on the outer periphery of the distal end of the bush 46, and this is stopped by a retaining ring 48a. A spring receiving member 49 is externally fitted to the support shaft 43 on the side surface of the bush 46 opposite to the side on which the washer 48 is arranged, and the support shaft 4 is
3 and can be integrally rotated. The coil spring 44 is externally fitted to the support shaft 43 and one end of the coil spring 44 is externally fitted to the tip of the roll receiving member 42, and the terminal is stopped and locked in the hole 42a drilled here,
Further, the other end is externally fitted and locked to the spring receiving member 49.

The clutch shaft 45 has a shaft portion 45a and an adjustment knob 4
5b, one end of the shaft portion 45a is integrally connected to one end of the support shaft 43 by the knock pin 45f as described above, and a quadrangular concave hole 45c is formed in the other end surface. A prismatic projection 45e formed at one end of the adjustment knob 45b is slidably fitted with a coil spring 45d interposed therebetween. A quadrangular prism-shaped protrusion is formed on the terminal surface of the other end of the adjustment knob 45b, and is engaged with the rectangular hole 32 formed in the support member 3 to prevent rotation.

In this state, the adjusting knob 45b is urged in a direction to come out of the shaft portion 45a by the expanding pressure of the coil spring 45d, and the adjusting knob 45b is opposed to the coil spring 45d by a driver (not shown). By pressing the support member 3 out of the hole 32, the restraint by the support member 3 is released, and by rotating the driver, the coil spring 44 is turned an appropriate number of times in an arbitrary direction of increasing or decreasing the resilience thereof. To adjust the resilience when the curtain is rewound.

FIG. 8A is a partially enlarged longitudinal sectional view of the weight bar 9, and FIG. 8B is a sectional view taken along the line bb of FIG. 8A, which is made of synthetic resin or aluminum. A groove 51a is formed in the middle of the upper surface and extends in the axial direction at the center of the upper surface. The inner ends of the groove walls 51b, 51b on both sides are turned toward the opposite sides, respectively, and extend in parallel with the upper wall. I have been.

An elongated bag-like portion 4a is formed at the lower end of the curtain 4 by folding it back to a predetermined width, and a bar 52 thicker than the width of the groove 51a is inserted through the bag-like portion 4a. The inside of the groove 51a and the bar material 52 are inserted into the weight bar 9 together with the bag-shaped portion 4a housed from one end side thereof, and both ends of the weight bar 9 are fitted with caps 53 having the same contour. Thus, the lower end of the curtain is prevented from coming off from the weight bar 9. M
G is a magnet for operating the proximity switches SW1 to SW3, and is inserted and fixed in a cavity formed by folding back the groove wall 51b on one side.

FIG. 9A is a block diagram showing the configuration of the arithmetic control unit provided on the control board 70, and FIG. 9B is a schematic plan view of the operation device 6 for remote control. The control board 70 is inserted and positioned in the space portion 14 of the mounting frame 1 as shown in FIG. 2, and a power supply line L is drawn out from the control board 70 through the side wall of the mounting frame 1 as shown in FIG.

The arithmetic control unit has a central arithmetic control unit CPU, which is turned on by the approach of an optical sensor PS1 for receiving an optical signal from a remote control operating device 6 and a magnet MG built in the weight bar 9. ,
Proximity switches SW1 to SW that are turned off by separation
3. A counter 73 which counts up a clock corresponding to the drive time when the synchronous motor M is rotated forward, the forward drive unit 74 and the reverse rotation drive unit 75, and the counter 73 which counts down the clock in the case of reverse rotation.
And a register 72 for storing the lower limit position of the curtain 4 as the drive time of the synchronous motor M until the curtain 4 reaches the lower limit position from the upper limit position. The LED 71 is lit when the register 72 does not store the curtain limit point, and is lit to urge the user to set the curtain limit point.

In addition, PS2 to PS4 are optical sensors of each electric roll curtain device installed at a plurality of locations (four locations in the embodiment), and these optical sensors are collected and installed at one location. Each optical sensor PS1 on the operating device 6
ＰＳPS4 can be output simultaneously or individually. The operating device 6 opens the electric roll curtain devices respectively installed at four locations as shown in FIG.
P), four buttons 6a, 6 to be closed (DOWN)
b, and a button (ALL) for simultaneously opening (UP) and closing (DOWN) all of the plurality of electric roll curtain devices.
In addition to the above, between the rows of these two buttons 6a and 6b,
A small hole approximately the same size as the pen tip of a ballpoint pen or the tip of a mechanical pen is opened, and a reset switch 6c is exposed to each of these holes.

If the tip of a ball-point pen or the tip of a mechanical pen is inserted into this recess, the previously set descent limit point is reset, and the control unit 70 is changed to the descent limit setting mode. Next, the operation of the electric roll curtain device according to the embodiment will be described with reference to the flowcharts showing the processing steps of the CPU of the arithmetic and control unit shown in FIGS.

In FIG. 10, when a power supply outlet for the synchronous motor M or the like shown in FIG. 6 is inserted into the receptacle (step S1), a setting mode for the curtain lower limit is set (step S2), and the setting of the lower limit is performed. It is determined whether or not the operation has been performed (step S3). If the operation has not been performed, the process returns to step S2. If the lower limit has been set, the operation mode is set (step S3).
4).

The processing of the CPU in the lower limit setting mode is performed as follows. First, the LED attached to the motor cover 28 is turned on, the timer is reset, and the register is cleared (step S11). Proximity switch SW
1 to SW3 are turned on, in other words, curtain 4
Is determined to be at the upper limit (step S1).
2) If it is not located at the ascending limit, the operation signal to the forward drive control unit 74 of the synchronous motor M is cut off (the curtain is prevented from descending) (step S13), and the reverse drive control of the synchronous motor M is performed. It is determined whether or not there has been a command to the unit 75 (step S14). If there is no command, the process returns to step S13 to repeat the above-described process.
(Step S15) Returning to Step S12, it is determined whether or not one of the proximity switches SW1 to SW3 is turned on.
If it is not turned on, the processing steps of steps S13 to S15 are repeated, and if it is turned on, the cutoff for the descending command is released (step S16).

It is determined whether or not a descending command has been issued (step S17). If there is no descending command, this decision is repeated. If a descending command has been received, the synchronous motor M is intermittently driven forward intermittently. Then, the counter 73 is operated (step S18). It is determined whether or not a stop command has been received (step S19). If not, the process returns to step S18 to continue intermittent normal rotation drive. It is determined whether or not the process has been completed (step S20). If not, the process returns to step S11 to repeat the above-described process. If there is, the integrated value of the counter 73 at that time is stored in the register 72 ( That is, after setting the lower limit) (step S21), the mode shifts to the normal mode.

The processing of the CPU in the normal mode is performed as follows. In FIG. 12, first, it is determined whether there is a descending command, whether there is an ascending command, or whether there is a limit command (step S31). If there is a descending command (step S32), the counter 7
It is determined whether or not the integrated value of No. 3 is the lower limit value T (step S3).
3) If the lower limit value T is reached, the synchronous motor M is stopped. If the lower limit value is not reached, the synchronous motor M is driven forward (step S34) to determine whether or not a stop command has been issued. It is determined (step S35), and if there is, the synchronous motor M is stopped (step S36). If not, the process returns to step S31 to repeat the above-described process.

When there is an ascending command (step S
37), it is determined whether or not any one of the proximity switches SW1 to SW3 is turned on (step S38). If so, the synchronous motor M is stopped. The synchronous motor M is rotated reversely (step S39), and it is determined whether or not a stop command has been issued (step S40). If there is a stop command,
The synchronous motor M is stopped, and if not, the process returns to step S31 to repeat the above-described processing. If there is a limit set command (step S41), the mode is changed to the lower limit setting mode shown in FIG.

[0034]

As described above, in the first invention, the movement limit position of the object is stored in the storage means as the drive time of the synchronous motor until the object reaches the limit position from the reference position. The movement limit position of the object can be set and detected without installing a special sensor, the equipment cost can be reduced, and the movement limit position is not affected even by wind, etc. Malfunction can be prevented, and high reliability can be obtained.

According to the second aspect of the present invention, the feed limit position of the curtain member is defined as a drive time of the synchronous motor until the curtain member reaches the feed limit position from the reference position set on the rewind side of the curtain member. By storing the information, a sensor for detecting the distance between the extension limit positions and a side guide are not required, and malfunction due to a trouble of the sensor can be prevented.
The reliability can be improved, and the change of the extension limit position can be performed extremely simply by changing the stored value of the storage means.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of an electric roll curtain device to which a movement control device and an electric curtain device according to the present invention are applied.

FIG. 2 is an enlarged sectional view of a mounting frame.

FIG. 3 is a partially enlarged sectional view showing a support structure on a right end side of a winding roll.

FIG. 4 is a partially enlarged cross-sectional view showing a support structure on a left end side of a winding roll.

FIG. 5 is an enlarged right side view and an enlarged bottom view of a support member on the right end side of the winding roll.

FIG. 6 is a side sectional view taken along line VI-VI of FIG. 3;

FIG. 7 is a left side view of the support member.

FIG. 8 is a partially enlarged longitudinal sectional view of a weight bar.

FIG. 9 is a block diagram illustrating a configuration of an arithmetic control unit.

FIG. 10 is a flowchart showing a control process of a control block diagram.

FIG. 11 is a flowchart showing a process of a lower limit setting mode.

FIG. 12 is a flowchart showing a process of an operation mode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attachment frame 2, 3 Support member 4 Curtain 5 Take-up roll 6 Operation device 9 Weight bar 70 Control board 73 Counter PS (PS1-4) Optical sensor M Synchronous motor

Claims (3)

[Claims] An object is moved from a first position, which is a reference point, to a second position, which is a predetermined movement limit point, using a synchronous motor. When the object reaches the movement limit point, positioning is stopped. In the movement control device provided with a control unit for causing the synchronous motor to move the second position, the drive time of the synchronous motor required to move the target object from the first position to the second position. Storage means for storing in association with each other; clock means for measuring the driving time of the synchronous motor; and a synchronous motor based on a comparison result between a time value measured by the clock means and the time stored in the storage means. And a means for stopping the movement. 2. A take-up roll pivotally supported so as to be rotatable forward and reverse, and wound around the take-up roll, fed out and wound back by forward and reverse rotation of the take-up roll. An electric curtain device comprising: a curtain member; a synchronous motor that drives the take-up roll to rotate forward and backward; and a control unit that controls switching between forward rotation and reverse rotation of the synchronous motor. A mode setting means for setting and storing a feeding limit point of the curtain member, and a setting mode for setting and storing the feeding limit point of the curtain member. Storage means for storing the drive time of the synchronous motor until the curtain member reaches the point; subtraction means for obtaining a difference between the forward drive time and the reverse drive time of the synchronous motor; Electric curtain device, characterized in that it comprises a means for stopping the synchronous motor based on a comparison result between meta difference and time is stored in the storage means. 3. The electric curtain device according to claim 2, wherein the curtain member is a shutter, a light shielding screen, a roll curtain, or a screen for projecting an image.