JPH05202685A - Motor-driving roll screen and motor-driven blind - Google Patents

Abstract

PURPOSE:To obviate an operation switch for controlling elevatable movement, stop, and the like to be provided separately from a roll screen or a blind main body. CONSTITUTION:The upper end of a screen 14 is connected to a winding up pipe 10 rotationally driven with a motor 16 controlled by means of a control device 24, capably of being wound up or rewound. A signal line 18 is provided on the side edge of the screen 14 like being sewn so as to be extending from the upper end to the lower end and connected to a control device 24 at the one end. An electrically conductive weight bar 20 contacted with the signal line 18 is fitted to the lower end of the screen 14. The control device 24 is electrically connected to the weight bar 20 through the signal line 18, and AC line noise is always let flow on this. The pulse amplitude and time of AC line noise are always measured by means of the control device 24, and when AC line noise of a decided pulse amplitude is detected for a decided time, an operation signal is generated so as to control elevatable movement and stop of the screen 14.

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 and an electric blind.

[0002]

2. Description of the Related Art The following are conventional electric roll screens and electric blinds. For example, the electric roll screen is composed of an operation switch, a roll screen main body, and a control device, and the operation switch is separated from the control device and attached to a position where the operation switch is easily operated. Cables and the like are connected between each. Further, the electric blind is also provided with an operation switch at a position apart from the control device similarly to the electric roll screen.

[0003]

However, in the above-described conventional electric roll screen and electric blind, since the operation switch is mounted at a position away from the control device, it is necessary to wire them between them, and to connect them to the wall surface. It was troublesome to decide the wiring route and adjust the length of the cable, and it took a long time to install it. The present invention is intended to solve such a problem.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above problems by detecting an operation by electrostatic induction and performing control such as raising and lowering and stopping the screen. That is, the electric roll screen of the present invention has a screen that has an upper end connected to a winding pipe that is rotationally driven by a motor controlled by a control device and that has a screen that can be wound and unwound by the winding pipe. It has a signal line which is provided from the upper end to the lower end and whose upper end is connected to the control device, and a conductive weight bar which is attached to the lower end of the screen and is connected to the lower end of the signal line. The control device is configured to detect that a person touches the weight bar by a change in noise due to electrostatic induction and output an operation signal for moving up or down the screen. Further, a conductive pull cord and a knob can be attached to the lower side of the weight bar.

Further, according to the present invention, a head box, a large number of slats that are supported in an aligned state by ladder cords, a conductive bottom rail arranged at a lower end of the slat row, and one end thereof is connected to the bottom rail. An elevating cord that is connected to a rotating drum provided at the other end in the headbox through the slat row so that the winding drum can be wound and unwound, and a motor that is provided inside the headbox and drives the winding drum to rotate. It is also applicable to an electric blind having a control device that controls driving of a motor. In this case, the control device is electrically connected to the bottom rail by a signal line, and the control device detects that the bottom rail is touched by a person by a change in noise due to electrostatic induction and moves the slat up or down or rotates. It is configured to output a signal.

[0006]

Action: For example, AC line noise (noise having a certain fixed period) is constantly being made to flow from the control device to the weight bar or the bottom rail, and when the human touches these, the human has it inside. AC line noise changes due to electrostatic induction of electrostatic energy. When the control device detects the AC line noise having the pulse amplitude changed by the electrostatic induction for a predetermined time, it generates an operation signal to control the raising and lowering of the screen or the raising and lowering and rotation of the blind. Therefore, when a person touches the weight bar, the knob, or the bottom rail, the AC line noise is changed by electrostatic induction to generate an operation signal to the control device, and the screen is moved up and down or the slats are moved up and down. Can be controlled. This eliminates the need to install a separate operation switch.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an overall view of an electric roll screen of the present invention. The wind-up pipe 10 is rotatably supported by the side plates 12 at both ends of the rotation center axis thereof. The winding pipe 10 is connected to one side of the upper end of the screen 14, and a motor 16 that drives the winding pipe 10 in the winding and unwinding directions of the screen 14 is built in the winding pipe 10. .. On the screen 14,
Along the side edges of this signal line 18 from the upper end to the lower end.
Is attached. A conductive (for example, aluminum) weight bar 20 electrically connected to the signal line 18 is attached to the lower end of the screen 14.
Winding pipe 10, side plate 12, screen 1
4, the motor 16, the signal line 18, and the weight bar 20 constitute a roll screen body 22. A controller 24 for controlling the operation of the roll screen body 22 is connected to the roll screen body 22. The controller 24 uses the signal line 1
It is electrically connected to the weight bar 20 via 8, and AC line noise is constantly flowing to this. The controller 24 has a function of measuring the pulse amplitude and time of AC line noise. The control device 24 is 62 ms in a cycle in which the AC line noise having a pulse amplitude larger than the pulse amplitude of the normal AC line noise is 22 ms or less.
When it is detected that the operation is continued, an operation signal described later is generated. The controller 24 is connected to the motor 26 and controls the rotational drive of the motor 26.

FIG. 2 shows a side view near the weight bar 20. The signal line 18 is attached to the screen 14 so as to sew it. Therefore, the uncovered signal line 18 is exposed on the surface of the screen 14. The weight bar 20 has a cylindrical shape, and on the upper surface and the lower surface thereof, openings 26 and 28 are formed over the entire surface in the longitudinal direction, respectively. The lower end of the screen 14 is inserted into the weight bar 20 through the opening 26. The screen 14 is arranged such that one surface of the screen 14 is in contact with the one end 29 of the opening 26 such that the signal line 18 is in contact with the one end 29 of the opening 26. This allows
The signal line 18 and the weight bar 20 are electrically connected. The lower end portion 27 of the screen 14 is bent to have a width dimension larger than the width of the opening portion 26. A screen stop plate 30 is provided on the surface of the lower end 27 facing the opening 26. The tip of the lower end portion 27 is in contact with the protruding portion 32 that radially protrudes from the inner peripheral surface of the weight bar 20. As a result, the lower end portion 27 is sandwiched between the one end portion 29 and the projecting portion 32 so as not to shift. As a result, the screen 14 is fixed to the weight bar 20.

FIG. 3 shows a view of the roll screen body 22 and the control device 24. The cable 36 is pulled out from one end of the winding pipe 10. A connector 34 is provided at the tip of the cable 36. A connector 38 that can be fitted to the connector 34 is provided on the side surface of the control device 24. By fitting the connector 34 and the connector 38 together, the motor 16 and the signal line 18 are electrically connected to the control device 24. The control device 24 is provided with a power cord 40, and by connecting the power cord 40 to an outlet provided on a wall or the like, the control device 24
Is connected to the power supply.

The operation of this embodiment will be described. When a human touches the weight bar 20, the AC line noise flowing in the weight bar 20 changes due to the electrostatic induction of the electrostatic energy that the human has inside the body. The AC line noise is monitored by the controller 24 that is electrically connected to the weight bar 20. The control device 24 is A
When it is detected that the state in which the pulse amplitude of the C line noise is larger than that in the normal state continues for 62 ms or more in a period of 22 ms or less, an operation signal based on the operation pattern shown in the block diagram of FIG. 4 is generated. That is, for example, when the screen 14 is stopped in the fully closed state, when the weight bar 20 is touched once, the control device 24 generates an operation signal of “up” and the take-up pipe 10 takes up the screen 14. The motor 16 is rotationally driven so as to rotate in the direction. As a result, the screen 14 moves up. Next, when the weight bar 20 is touched again while the screen 14 is being raised, the control device 24 generates a "stop" operation signal to stop the rotational driving of the motor 16.
As a result, the raising of the screen 14 is stopped. next,
When the weight bar 20 is touched in this state, the control device 24
Generates an operation signal of "descent" and causes the winding pipe 10 to rotate in the direction in which the screen 14 is unwound.
To rotate. As a result, the screen 14 descends. Next, when the weight bar 20 is touched while the screen 14 is descending, the control device 24 generates an operation signal of "stop" to stop the rotational driving of the motor 16. This stops the descent of the screen 14. Thus, each time the weight bar 20 is touched, the control device 24
The motor 16 is controlled by repeating the pattern of ascending, stopping, descending, and stopping.

FIG. 5 shows a second embodiment. Weight bar 2
In the lower space 42 of 0, a conductive pull cord fixture 44 having a substantially same cross-section and a lower end slightly protruding from the opening 28 is inserted. The pull cord fixture 44 is in contact with both ends of the opening 28 and is electrically connected to the weight bar 20. Pull cord fixture 4
An upper end of a conductive pull cord 46 is attached to the lower surface of 4. A conductive knob 48 is attached to the lower end of the pull cord 46. As a result, the pull cord fixing tool 44, the pull cord 46, and the knob 48 are electrically connected to the weight bar 20, so that no matter which part of the weight bar 20, the pull cord 46, or the knob 48 is touched, AC is generated by electrostatic induction. The line noise can be changed, which allows the controller 24 to be activated.

The present invention is not limited to the electric roll screen of the above embodiment, but can be applied to an electric blind. That is, the bottom rail of the electric blind may be formed of a conductive material, the bottom rail and the control device may be electrically connected by a signal line, and the slat may be raised and lowered and rotated by touching the bottom rail.

[0013]

According to the present invention, a human touches a weight bar, a knob, or a bottom rail to generate an operation signal in a control device by electrostatic induction of electrostatic energy held by the human. The lifting and stopping of the screen or the lifting and rotating of the slats can be controlled. As a result, there is no need to provide a separate operation switch. Therefore, since wiring from the control device to the operation switch is not necessary, it is not necessary to secure a wiring space on the wall surface in advance, and a mounting space can be reduced. Also, the installation work is easy and does not take much time. Because it is not wired on the wall,
The design of the wall surface is not damaged.

[Brief description of drawings]

FIG. 1 is an overall view of an electric roll screen of the present invention.

FIG. 2 is a side view of the vicinity of a weight bar.

FIG. 3 is a diagram showing a connection between a roll screen body and a control device.

FIG. 4 is a block diagram showing an operation pattern of the control device.

FIG. 5 is a diagram showing a second embodiment.

[Explanation of symbols]

 10 Winding Pipe 14 Screen 16 Motor 18 Signal Line 20 Weight Bar 24 Controller 46 Pull Cord 48 Knob

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kiji Maeda 2-4-10 Higashikanda, Chiyoda-ku, Tokyo Camellia Seiko Co., Ltd.

Claims (3)

[Claims] 1. An electric roll screen having an upper end connected to a take-up pipe rotatably driven by a motor controlled by a controller and having a screen capable of being wound and unwound by the upper end of the screen. To a lower end and a top end thereof is connected to the control device, and a conductive weight bar attached to a lower end of the screen and connected to a lower end of the signal line. Is an electric roll screen, which is configured to detect a touch of a weight bar by a person based on a change in noise due to electrostatic induction and output an operation signal for moving up or down the screen. 2. The electric roll screen according to claim 1, wherein a conductive pull cord and a knob are attached to the lower side of the weight bar. 3. A head box, a number of slats that are supported in an aligned state by ladder cords, a conductive bottom rail disposed at a lower end of the slat row, and one end connected to the bottom rail and the slat row. An elevating cord that is inserted into the head box so that the other end can be wound and unwound on a rotary drum provided in the head box, a motor that is provided in the head box to drive the take-up drum to rotate, and a motor drive In an electric blind having a control device for controlling, the control device is electrically connected to the bottom rail by a signal line, and the control device detects that a person touches the bottom rail by a change in noise due to electrostatic induction. And an electric blind configured to output an operation signal for raising or lowering the slat.