JPH06108764A - Motor-driven rolled screen device for lighting window - Google Patents

Abstract

PURPOSE:To automatically open and close a screen by providing a motored drive device for winding up and paying off an elevation cord, and a control device for stopping the motored drive device at a fully open position and a full close position of the screen. CONSTITUTION:When a geared motor 7 is normally rotated by a control device 19, an elevation cord 6 is wound up on a drive pulley 8 so that a screen is pulled out from a wind-up device 2, that is, the screen 3 is closed. Meanwhile when the geared motor 7 is reversely rotated, the elevation cord 6 is paid off, and accordingly, the screen 3 is wound up onto the wind-up device 2 by the resilient force of a spring incorporated in the wind-up device 2 so as to open the screen 3. In this phase, the fully open and close positions of the screen 3 are detected by a position detecting unit 9, and the geared motor 7 is sapped by the control device 10 in response to a signal from the unit 9. With this arrangement, it is possible to enhance the convenience.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric roll screen device for daylighting windows. For more details,
The present invention relates to an electric roll screen device for a daylighting window, which can automatically stop the electric drive device at the fully open and fully closed positions as well as automatically open and close the screen.

[0002]

2. Description of the Related Art Conventionally, a roof window of a house or the like has been provided with a daylighting window (a) as shown in FIG. 4, for example, for daylighting and ventilation. Such a lighting window (a)
In FIG. 5, as illustrated in FIG. 5, a roll screen (d) is provided on the duct part (c) formed on the ceiling surface part (a) so that light control can be performed simultaneously with daylighting and ventilation.

FIG. 6 is a plan view showing an example of a roll screen used for the daylighting window (a). In this roll screen (D) for a daylighting window, a screen (F) having a roll bar (E) at one end is attached to a winding device (K) with a built-in spring so that it can be pulled out and wound up. The take-up device (K) can be rotated forward and backward in the direction of the arrow shown in the figure, and when the screen (F) is closed, the built-in spring accumulates elastic force and releases this elastic force. By doing so, the screen (F) can be wound up. Also, on the roll screen (d),
A lifting cord (ke) having a fixed length and having a fixed end is inserted through the roll bar (e) from one end and pulled out from the other end. By manually pulling this lifting cord (ke), the winding device (ki) is rotated (normal rotation).
You can pull out the screen (F). Then, when the screen (F) is closed, the roll bar (E) is locked to the fixed hook (U) provided on the duct portion (C) illustrated in FIG. On the other hand, when opening the screen (K), by releasing the lifting cord (K), the above-mentioned winding device (K) reverses (reverses) by the elastic force of the built-in spring and winds the screen (K). take.

[0004]

However, in the conventional daylighting window roll screen as shown in FIG. 6, for example, since the screen (F) is drawn out manually, the operation is troublesome. It was annoying. In particular, with regard to this daylighting window roll screen (d), as shown in FIG. 5, a special installation condition of being arranged on the ceiling surface part (a) is added, so that the opening / closing operation is performed by the user. It is desired to make it easier.

The present invention has been made in view of the above circumstances, solves the drawbacks of the conventional roll screen for daylighting windows, and automatically opens and closes the screen, as well as the electric drive device at the fully open and fully closed positions. It is an object of the present invention to provide a new electric roll screen device for a daylighting window, which can automatically stop the light.

[0006]

In order to solve the above problems, the present invention provides a roll screen for a daylighting window provided with a screen, a winding device with a built-in spring, and a lifting cord for pulling out the screen. , An electric drive device that winds and rewinds the lifting cord, a position detection unit that detects the fully open and fully closed positions of the screen, and the electric drive based on the fully open and fully closed position detection signals from the position detection unit. Provided is an electric roll screen device for daylighting windows, which is provided with a control device for stopping the device.

In the present invention, it is preferable that the position detecting unit is provided with a limit switch which is turned on and off by a roll bar provided at one end of the screen and another limit switch which is turned on and off by a change in tension of the lifting cord. It is also one of the aspects.

[0008]

[Working] In an electric roll screen device for a daylighting window of the present invention, an electric drive device for winding and rewinding an elevating cord, a position detection unit for detecting the fully open and fully closed positions of the screen, and this position detection Since the control device for stopping the electric drive device based on the fully opened and fully closed position detection signals from the unit is provided, it is possible to automatically control the electric drive device at the same time when the screen is automatically opened and closed. When closing the screen, the elevating cord is wound up by the electric drive device, and when opening the screen, the elevating cord is rewound by the electric drive device and the screen is wound up on the winding device by the winding device. When the screen is fully opened or fully closed, the position can be instantly detected by the position detection unit, and the control device automatically stops the electric drive device based on the detection signal. Therefore, it is not necessary to overload the electric drive device.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An electric roll screen device for daylighting windows according to the present invention will be described in more detail below with reference to the accompanying drawings. FIG. 1 is a configuration diagram illustrating the configuration of an electric roll screen device for a daylighting window of the present invention.

For example, in the example of FIG. 1, the roll screen (1) is provided with a screen winding device (2) having a built-in spring and the winding device (2).
The screen (3) is attached to the so that it can be pulled out and wound up. The winding device (2) rotates (normally rotates) by pulling out the screen (3), elastic force is accumulated in a built-in spring, and when the elastic force is released, it is reversed (reverse) and the screen (3) is rotated. ).

A roll bar (4) is provided at one end of the screen (2). Further, an elevating cord (6) having a fixed end (5) is inserted into the inside of the roll bar (4) from one end thereof and pulled out from the other end. The lifting cord (4) has a free end and is attached to a drive pulley (8) provided on the geared motor (7) so as to be freely wound and unwound. By the rotation (normal rotation) of the geared motor (7), the lifting cord (6) is wound around the drive pulley (8), and the screen (3) can be pulled out from the winding device (2) and closed. On the other hand, when the geared motor (7) is reversed (reverse rotation) and the elevating cord (6) is rewound, the elastic force of the spring built into the winding device (2) causes the screen (3) to wind up the winding device (2). ) Can be rolled up. When stopping the screen (3) at an appropriate position, the forward rotation or the reverse rotation of the geared motor (7) is stopped.

As described above, the screen (3) can be automatically opened and closed by winding up and down the lifting cord (6) using the geared motor (7). The trouble and troublesomeness of the opening / closing operation in the conventional manual roll screen are eliminated. The forward rotation, the reverse rotation and the stop of the geared motor (7) can be performed by an arbitrary method such as a wired or wireless remote control switch or a combination thereof.

Further, in the example of FIG. 1, a position detecting unit (9) for detecting the fully open and fully closed positions of the screen (3) and a geared motor (7) for detecting the position by the position detecting unit (9). A control device (10) for stopping is also provided. The control device (10) is electrically connected to the geared motor (7) and the position detection unit (9), respectively.

FIG. 2 is a sectional view showing an example of the position detecting unit. In the example of FIG. 2, the position detection unit (9) includes two limit switches (11) (1
2) is incorporated, and lead wires (13) connected to the control device (10) illustrated in FIG. 1 are drawn from these limit switches (11) and (12).

The limit switch (11) is for sending a detection signal for detecting the fully closed position of the screen (3) illustrated in FIG. 1 to the control device (10), and is a push rod arranged on the upper part thereof so as to be able to move up and down. It is turned on / off by (14). The limit switch (11) is normally in the OFF state. The other limit switch (12) is for sending a fully open position detection signal of the screen (3) to the control device (10) and is turned on / off by a lever (15) rotatably arranged near the switch part. OF
I am trying to be F. A roller (16) is provided at an end of the lever (15) opposite to the limit switch (12), and a lifting cord (6) is hung on the roller (16). Therefore, the lifting cord (6) usually has
A constant tension is applied by the geared motor (7) and the winding device (2) in FIG. 1, and this tension acts in the direction of turning on the limit switch (12) of the lever (16). Therefore, the limit switch (1
In 2), normally, the ON state is maintained.

FIG. 3 is a block diagram showing an example of the circuit configuration of the controller illustrated in FIG. In the example of FIG. 3, the control device (10) includes a limit switch (1
1) A CPU (17) for detecting whether the screen (3) is fully opened or fully closed by inputting a position detection signal from (12) is incorporated. The CPU (17) detects that the screen (3) is fully open or fully closed, and then sets Ry1 or Ry2 to 0.
Set to FF and stop driving of the geared motor (7).

FIG. 3 shows the screen (3) when fully open. For example, in the electric roll screen device for a daylighting window of the present invention having the above-described configuration, the fully open and fully closed position detection control of the screen (3) can be performed as follows. That is, when the geared motor (7) illustrated in FIG. 1 is rotated (normal rotation) to wind the lifting cord (6) around the drive pulley (8) and pull out the screen (3) to bring the roll bar (6) into a fully closed state. 4) contacts the upper end of the push rod (14) in FIG. 2 and pushes it down, turning on the limit switch (11). Then, a fully closed position detection signal is output, the CPU (17) illustrated in FIG. 3 confirms that the screen (3) is fully closed, and Ry2 is turned off to stop the geared motor (7).

On the other hand, the geared motor (7) is reversed (reversely rotated), the lifting cord (6) is rewound, the screen (3) is wound up by the winding device (2), and when the fully opened position is reached, the geared motor ( Since the lifting cord (6) is unwound by 7), the tension of the lifting cord (6) is loosened. This loosening of the tension causes the lever (15) shown in FIG.
Set to FF. When this switch is turned off, the CPU (1
7) judges that the screen (3) is fully opened, Ry1 is turned off and the geared motor (7) is stopped.

As described above, in the electric roll screen device of the present invention, at the same time when the geared motor (7) and the winding device (2) are automatically opened and closed, the fully open and fully closed states of the screen (3) are instantly detected. Thus, the drive of the geared motor (7) can be automatically stopped. It is possible to prevent the geared motor (7) from being overloaded and prevent device failure.

Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in details such as the configuration and structure of the roll screen and the position detection unit, the circuit configuration of the control device, and the control method.

[0021]

As described in detail above, according to the present invention, the electric drive device can be automatically opened and closed, and the electric drive device can be automatically stopped at the fully open and fully closed positions thereof. A roll screen device for a daylighting window is provided.

[Brief description of drawings]

FIG. 1 is a configuration diagram illustrating the configuration of an electric roll screen device for a daylighting window of the present invention.

FIG. 2 is a sectional view showing an example of a position detection unit.

FIG. 3 is a block diagram showing an example of a circuit configuration of a control device.

FIG. 4 is a perspective view illustrating a daylighting window.

FIG. 5 is a perspective view illustrating a conventional roll screen installed in a daylighting window.

FIG. 6 is a plan view showing an example of a conventional roll screen for daylighting windows.

[Explanation of symbols]

 1 Roll Screen 2 Winding Device 3 Screen 4 Roll Bar 5 Fixed End 6 Lifting Code 7 Geared Motor 8 Drive Pulley 9 Position Detection Unit 10 Control Device 11, 12 Limit Switch 13 Lead Wire 14 Push-in Rod 15 Lever 16 Roller 17 CPU

Claims (2)

[Claims] 1. A roll screen for a daylighting window in which a screen, a winding device with a built-in spring, and an elevating cord for pulling out the screen are arranged, and an electric drive device for winding and rewinding the elevating cord, and a screen. A position detection unit that detects the fully open and fully closed positions of
An electric roll screen device for a daylighting window is provided with a control device for stopping the electric drive device based on a fully opened and fully closed position detection signal from the position detection unit. 2. The position detection unit includes a limit switch that is turned on and off by a roll bar provided at one end of the screen, and another limit switch that is turned on and off by a change in tension of a lifting cord. Electric roll screen device.