JPS642941Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an actuating device for an electric blind.

In electric horizontal blinds, multiple horizontal slats are arranged vertically at regular intervals, and the slats are raised, lowered, and rotated by a motor. Therefore, even in electric blinds in which the slats run and rotate, when the blind is opened or closed, the edges of adjacent slats may come into contact with each other, obstructing the opening/closing operation or causing damage to the slats or other parts. In order to prevent malfunctions, etc., when opening and closing the blind, first rotate the slat to a position perpendicular to the blind opening/closing direction by rotating the blind operating motor. It is configured to open and close. However, in terms of adjusting the rotation angle of the slats, it is preferable to set the rotational speed of the slats at a low speed, and in terms of opening and closing the slats, it is preferable to set the opening/closing speed to a high speed. If the slat opens and closes, it will take too much time, and if the motor is set to an appropriate speed for opening and closing the slat, the rotational speed of the slat will be too fast, making it impossible to finely adjust the angle of rotation of the slat. Conventionally, in order to eliminate these drawbacks of electric blinds, a blind operating device has been used that incorporates a mechanism for slowing down the rotational speed of the slats and increasing the opening/closing speed. It is quite complex and expensive.

The purpose of this invention is to have an extremely simple configuration, so that when the blind operating motor is energized, the slats are rotated at low speed to a position perpendicular to the blind opening/closing direction, and then the slats are opened/closed at high speed. An object of the present invention is to provide an operating device for an electric blind.

The feature of the electric blind operating device according to the present invention is that by rotating the blind operating motor, the slats are rotated to a position perpendicular to the blind opening/closing direction, and then the slats are opened/closed. In the operating device for type blinds, a motor control device consisting of a parallel circuit of a resistor and a normally open contact is placed between the blind operating motor and the motor drive power source, and the normally open switch is connected after a predetermined time delay after turning on the motor drive power source. This is achieved by providing a delay device that closes the contacts.

This will be explained below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of an electric blind operating device according to the present invention.
2 is a DC motor that operates the blind; 2 is a DC power source for driving the motor; 3 is a switching operation switch for forward, reverse, and stopping the DC motor; 4 is a motor control device that controls the operation of motor 1; , 5 indicates a delay device. Changeover operation switch 3
For example, it has a structure as shown in Fig. 2, and switches the current sent to the DC motor 1 to rotate the motor in the forward or reverse direction, or cuts off the current to rotate, open, close, or stop the slats of the blind. As shown in FIG. 3, the motor control device 4 that performs this function consists of a parallel circuit of a resistor 6 and a normally open contact 7. When the changeover operation switch 3 is turned ON in either the open or close direction, the delay device 5 outputs a control signal after a predetermined time delay, thereby closing the normally open contact 7. The delay time is set to be longer than, for example, about 8 seconds, until the slats of the blind rotate to a position perpendicular to the blind opening/closing direction.

The actuating device described above operates as follows.

Turn the changeover operation switch 3 in the direction of opening or closing (in the case of horizontal blinds, raise or lower)
When turned ON, the resistor 6 of the DC motor control device 4 works until the delay device 5 works and outputs a control signal (for example, about 8 seconds after turning the switch ON).
The DC motor voltage is lower than normal, so the motor rotates at a low speed to slowly rotate the blind slats.

The set time for outputting the control signal from the delay device is set longer than the time for the blind slats to rotate, and when the control signal is output from the delay device 5, the normally open contact 7 of the DC motor control device 4
is closed and the DC motor 1 starts rotating normally, opening and closing the blind smoothly.

FIG. 4 shows an example of a circuit used in the delay device 5 and motor control device 5 described above.

As mentioned above, the electric blind actuating device according to the present invention first rotates the slats slowly when the power is turned on, so the slats can be adjusted reliably, and the slats do not rotate when opening or closing. Operate at high speed and smoothly. Furthermore, this device has an extremely simple configuration and operates reliably.

[Brief explanation of drawings]

Figure 1 is a block diagram showing one embodiment of the device of the present invention, Figure 2 is a diagram showing a changeover operation switch, Figure 3 is a diagram showing a motor control device, and Figure 4 is used as a delay device and a motor control device. FIG. DESCRIPTION OF SYMBOLS 1... Motor, 2... DC power supply, 3... Changeover operation switch, 4... Motor control device, 5... Delay device, 6... Resistor, 7... Normally open contact.

Claims (1)

[Scope of utility model registration request] In an electric blind operating device that opens and closes the slats by rotating the blind operating motor to rotate the slats in a position perpendicular to the blind opening/closing direction, the blind operating motor and the motor drive are used. A motor control device consisting of a parallel circuit of a resistor and a normally open contact is provided between the power source and a delay device that closes the normally open contact after a predetermined time delay after turning on the motor drive power source. An operating device for electric blinds.