KR940004903Y1 - Operating device of blind curtain - Google Patents

Abstract

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Description

Drive of blind curtain

Figure 1 is an embodiment according to the present invention.

2 is a partially cutaway perspective view of the present invention.

* Explanation of symbols for main parts of the drawings

1: Motor 2: Worm Gear

3,3 ': Bevelier A, B 10: Blind curtain

10a: wing 20: curtain operation part

20a: shaft member 30: reducer

HS: High Speed Selector Switch LS: Low Speed Selector Switch

A: Motor high speed control means B: Power

The present invention relates to a blind curtain driving device that opens and closes a blind curtain exhibiting a sunshade function and a function of blocking the inside and the outside, and changes the wing angle of the blind curtain, and in particular, improves the reliability of the function. The invention relates to a blind curtain driving device developed for the purpose of improving the structure and providing a high quality product to the user.

In general, the curtain curtain is installed in the window, and the shade and shading function and the function to block the inside and the outside visually, it is driven by means of performing the opening and closing operation of the blind curtain and the angular displacement operation of the blind curtain wing. A speed reducer for transmitting the motor as a means and a driving force of the motor by deceleration; It is introduced that the clutch is made to maintain the opening and closing operation of the curtain and the angular displacement operation of the wing as it is, but since it uses a separate clutch, a separate part (clutch, etc.) is required in the manufacturing process. There was a problem such as an upward factor, and the opening and closing operation of the blind curtain Since the speed (number of rotations) of the motor, which is the driving means, is constant during opening and closing operation of the blade, there is no problem in opening and closing operation. There were several defects such as following.

Therefore, the present invention is to improve the speed reducer structure of the blind curtain driving device to open and close the blind curtain in order to eliminate the above-mentioned drawbacks, and to change the vane angle. It is equipped with the motor speed control means to control the speed (speed) of the motor and to perform the clutch function at the same time, and to operate the motor at high speed when opening and closing the curtain, and to operate the motor at low speed when the blade angle is displaced. By operating, it has been devised to provide convenience of use, the configuration and operation effect will be described in detail by the accompanying drawings as follows.

In the blind curtain driving device which opens and closes the blind curtain 10 in a foldable manner, and changes the angle of the blind curtain 10a at a predetermined angle, it is fitted to the worm 2a and the worm built up in the motor 1. Bevel gear 2 made of worm wheel 2b, bevel gear A 3 arranged on the worm wheel 2b, and bevel gear A meshed with the bevel gear A and connected to the shaft member 20a of the curtain actuating section 20. Gear B (3 ') is a high-speed to select the speed of the motor at high speed and low speed by controlling the reducer 30, which transmits the driving force of the motor decelerating and clutch function, and the power (B) applied to the motor (1) The motor speed control means (A) which consists of the selection switch HS and the low speed selection switch LS is comprised.

Here, the curtain operation unit 20 covers the pulley 20b installed on the shaft member 20a and the members 20a and 20b and is mounted on the window frame to support the blind curtain 10 ( 20c).

The wires 20d and 20d 'wound on the pulley 20b are connected to the respective blades 10a of the blind curtain 10 through the holes of the cover 20c, and the wires 20d are the blind curtain wings 10a. It is for folding and opening the room, the curtain wing angle variable wire (20d ') is for varying the angle of the blind curtain wing (10a).

(This is a part or structure corresponding to the curtain operating portion of the conventional blind curtain drive device, so a detailed description thereof will be omitted.)

By using a pair of wires 20d 'connected to both ends of the spring 20e by rotatably winding the spring 20e to the pulley 20b, the user can pull the selected wire 20d' to change the wing angle. In this case, since the spring 20e is slip-operated in the left or right direction from the pulley 20b, the user can manually change the angle of the blade of the blind curtain even without using the driving device according to the present invention.

In addition, the motor speed control means (A) is composed of a high speed selection switch (HS) to which the power source (B) is directly applied, and a low speed selection switch (LS) to which the power supply voltage (B) is applied through the resistor (R), That is, when the high speed selection switch HS is turned on, the power is applied to the motor 1 as it is, and the motor is rotated at a constant speed (high speed). When the low speed selection switch LS is turned on, the power is applied through the resistor R. In other words, the voltage below the power is applied to the motor 1 so that the speed of the motor 1 is rotated at a constant speed or less (low speed).

Referring to the effect of the present invention configured as described above are as follows. The present invention reduces the transmission of the driving force of the motor (1) to the curtain operation unit 20 side and at the same time reducer consisting of a worm gear (2) and bevel gears A, B (3) (3 ') that can perform a clutch function ( 30) and a motor having a high speed or low speed selection switch (HS) LS capable of controlling the size of the power B applied to the motor 1 to selectively control the speed of the motor 1 at a high speed or a low speed. A blind curtain driving apparatus provided with a speed control means (A), that is, a user only selects the high speed selection switch (HS) of the motor speed control means (A) to open the blind curtain (10). (Not shown) When turned ON, (for convenience, the motor 1 rotates forward when the blind curtain is opened, and the motor 1 rotates reverse when the blind curtain is closed). As the motor 1 is rotated forward as applied to the motor 1, the forward driving force of the motor 1 is a worm gear composed of a worm 2a and a worm wheel 2b. (2) and the bevel gears A, B (3) and 3 'are transmitted to the shaft member 20a of the curtain operating part 20 through the reduction gear 30 with the built-in rotation.

Subsequently, the pulley 20b inserted and fixed to the shaft member 20a is rotated to wind the wing opening and closing wire 20d so that the wings 10a of the blind curtain 10 are folded and moved upward from the bottom. In-blind curtain opening operation is executed.

In addition, when the user selects the high speed selection switch HS of the motor speed control means A to close the blind curtain and turns on the reverse rotation switch (not shown), the power source B turns on the high speed selection switch HS. As it is applied to the motor (1) as it is through the reverse rotation of the motor (1) at a high speed as the reverse drive force of the motor (1) through the reduction gear 30 of the present invention shaft member of the curtain operating portion (20) It is delivered to 20a and is rotated.

Subsequently, the pulley 20b fixed to the shaft member 20a is reversely rotated to release the wing opening and closing wire 20d 'so that the blade 10a of the blind curtain 10 is unfolded while being lowered by its own load. The blind curtain closing operation is executed.

In addition, when opening and closing the blind curtain 10 as described above, when the blind curtain 10 is stopped at a certain height position rather than being completely opened or completely closed, in other words, completely opened or completely closed. If not, the weight of the curtain itself acts downward, so that the shaft member 20a of the curtain operating part 20 may be rotated by the weight. At this time, the worm gear 2 is provided in the reducer 30 according to the present invention. Since it is laid, it blocks the rotation of the curtain operating part shaft member 20a due to the weight of the blind curtain to maintain the current position.

Accordingly, by employing the worm gear 2 in the reduction gear 30, it is possible to obtain the effect of removing the clutch that was necessary in the conventional drive device of the blind curtain.

On the other hand, when the user changes the angle of the blade 10a of the blind curtain 10 from the horizontal state to the inclined state or from the inclined state to the horizontal state, the full speed selection switch LS of the motor speed control means A is turned on. When the forward only or reverse only switch is turned on while selecting, the forward or reverse driving force of the motor 1 is reduced by the reducer 30 as the motor 1 rotates forward or reverse at a low speed. Since the pulley 20b inserted into the shaft member 20a is forward or reversely rotated by being forwarded or reversely rotated at a low speed by being transmitted to the member 20a, both ends of the spring 20e wound on the pulley 20b are continuously Since only one selected wire 20d 'of the fixed pair of wing angles 20d' is pulled and one remains, the blade 10a of the blind curtain 10 is varied in an inclined state or a horizontal state. .

At this time, the power (B) is applied to the motor 1 through the resistor (R), the rotation speed is reduced so that the user can easily and accurately vary the angle of the blade.

In addition, when arbitrarily adjusting the opening or closing section of the blind curtain, it is necessary to select the high speed selection switch (HS) of the motor speed control means (A), and then press the forward or reverse rotation switch intermittently while requiring the degree of opening and closing section. Can be selectively operated according to the

As seen from the above, the present invention is a blind curtain driving device that opens and closes a blind curtain in a folding manner, and has a deceleration function and a clutch function by incorporating a worm gear in the reducer that transmits and decelerates the driving force of the motor. The motor speed control means for controlling the rotational speed of the motor is operated at the same time, and the motor is operated at high speed when the curtain is opened or closed. It is possible to precisely control the angle by operating it, which not only improves the convenience of use but also improves the reliability of the product's quality function.

Claims (1)

In the blind curtain driving device which opens and closes the blind curtain 10 in a folding manner, and changes the angle of the blind curtain 10a at a predetermined angle, the blind curtain 10 is fitted to the worm 2a and the worm built up in the motor 1. Bevel gear 2 made of worm wheel 2b, bevel gear A 3 arranged on the worm wheel 2b, and bevel gear A meshed with the bevel gear A and connected to the shaft member 20a of the curtain actuating section 20. Gear B (3 ') is a high-speed to select the speed of the motor at high speed and low speed by controlling the reducer 30 and the power source (B) applied to the motor 1 to decelerate and transfer the driving force of the motor and the clutch function A drive device for a blind curtain comprising a motor speed control means (A) comprising a selection switch (HS) and a low speed selection switch (LS).