JP2006314389A - Electric curtain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To open and close curtain electrically when opening and closing it and to assist electrically the opening and closing operation also when opening and closing it manually. <P>SOLUTION: The curtain has a structure that a curtain rail 2 having plural cavities 2b to store the code guide for the connecting member 11 and the leading runner 8 slidably on the upper part and the rail 2c supporting the rollers 13 and 16 for the leading runner 8 and middle runner 9 rollably on the lower part, pulley cases 4 and 5 connected to the both sides of the curtain rail 2 to support the pulleys 6 and 7 pivotally inside, a driving mechanism 20 fixed on the pulley case 4 to drive the pulleys 6 and 7 and a wire 11 engagingly attached on the leading runner 8 and wounded between the pulley 6 and 7 are provided. In the driving mechanism 20, an assisting control circuit B to assist opening and closing operation when opening and closing the curtain manually is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric curtain that electrically opens and closes a curtain, and more particularly to an electric curtain that assists an opening and closing operation when manually opening and closing.

  Conventionally, instead of a manual curtain, an electric curtain that opens and closes a curtain by driving an electric motor is known. Further, for example, as shown in Japanese Utility Model Laid-Open No. 63-68875 (Patent Document 1), an electromagnetic clutch or the like is provided in the middle of a transmission path for transmitting the driving force of the drive motor to the curtain so that the electric curtain can be used manually. During manual operation, this electromagnetic clutch is switched to the disconnected state to shut off the power transmission path between the motor and the curtain so that the motor does not reversely drive when the curtain is opened and closed. There was something to reduce.

  However, the above-described electric curtain uses an electromagnetic clutch, and the electromagnetic clutch is expensive. Therefore, there is a problem that the electric curtain is also expensive. In order to solve this problem, there has been a manual combined electric curtain opening / closing device as disclosed in Japanese Patent Laid-Open No. 9-327373 (Patent Document 2). This device is pressed against the curtain rail from the lower side by a spring circumscribing the main body case in which the drive wheel with rubber-like material roller that functions as a suspension type traveling device is housed. By pulling down the curtain with force, the drive wheel is separated from the curtain rail, so that it can be opened and closed lightly.

Japanese Utility Model Publication No. 63-68875, page 1, JP-A-9-327373, first page

  In the conventional electric curtain described in the above-mentioned patent document, the curtain can be opened and closed manually and electrically. However, in order to operate this electric curtain, it is necessary to operate a switch installed on a wall or the like. When stopping the operation, it was necessary to turn off the switch by watching the movement of the curtain. In particular, when stopping the position of the curtain, there is a problem that it is difficult and troublesome to turn off the switch. Further, there is a similar problem even when a remote control is used. In particular, in the case of a remote control, there is a problem that it is more troublesome to search if the remote control is left behind.

  The present invention has been made in view of the above-described conventional problems, and provides an electric curtain that can be electrically opened and closed when the curtain is opened and closed, and can electrically assist the opening and closing operation when the curtain is manually opened and closed. To do.

  In order to solve the above problems, the present invention provides a curtain rail having a connecting member and a leading runner, a pulley case connected to both sides of the curtain rail and pivotally supporting a pulley therein, and the pulley case for driving the pulley. A driving mechanism fixed to a pulley case; and a connecting member wound around the pulley and engaged with the leading runner. The driving mechanism assists opening / closing operation when the curtain is manually opened / closed. A control circuit is provided.

  The present invention also provides a curtain rail having a coupling member and a leading runner, a pulley case coupled to both sides of the curtain rail and pivotally supporting a pulley therein, and fixed to the pulley case for driving the pulley. A driving mechanism, a connecting member wound between the pulleys and engaged with the leading runner, and an adjusting means for adjusting a winding length and tension of the connecting member. A drive motor; power transmission means for transmitting or interrupting the rotational operation of the drive motor to the pulley; and an assist control circuit for controlling the drive motor and the power transmission means to assist the opening / closing operation when the curtain is manually opened / closed. It is characterized by being equipped.

  The present invention also provides a curtain rail including a hollow portion that slidably accommodates the connecting member and the code guide portion of the leading runner, and a rail that supports the rollers of the leading runner and the intermediate runner at a lower portion so as to roll freely, and the curtain A pulley case connected to both sides of the rail and pivotally supporting a pulley therein, a drive mechanism portion fixed to the pulley case for driving the pulley, and a pulley wound around the pulley and engaged with the leading runner And a power transmission means for transmitting or interrupting the rotation operation of the drive motor to the pulley. An assist control circuit for controlling the drive motor and the power transmission means to assist the opening / closing operation when the curtain is manually opened / closed. A rotation detecting circuit for detecting the rotation of the power transmission means and said drive motor, a drive control circuit for controlling an intermittent of rotation said power transmission means of the drive motor is characterized in that provided.

  Furthermore, the present invention provides a curtain rail having a hollow portion that slidably accommodates the connecting member and the code guide portion of the leading runner, and a rail that supports the rollers of the leading runner and the intermediate runner at the lower portion so that the rollers can roll freely, and the curtain A pulley case connected to both sides of the rail and pivotally supporting a pulley therein, a drive mechanism portion fixed to the pulley case for driving the pulley, and a pulley wound around the pulley and engaged with the leading runner And a adjusting means for adjusting the winding length and tension of the connecting member, and the drive mechanism section includes a drive motor and a power transmission that transmits or blocks a rotational operation of the drive motor to the pulley. And an assist control circuit for assisting an opening / closing operation when the curtain is manually opened and closed by controlling the drive motor and the power transmission means. The control circuit includes the power transmission means, a rotation detection circuit for detecting the rotation of the power transmission means, and a drive control circuit for controlling the rotation of the drive motor and the power transmission means, and the rotation detection circuit. Is provided with a reflecting plate attached to the input side member and the output side member of the power transmission means, and a sensor including a light emitting element and a light receiving element disposed at positions facing the reflecting plate. It is what.

  Since the present invention is configured as described above, it can be normally used as an electric curtain, and even when manually opening and closing the curtain, the manual opening and closing operation is automatically detected at the start of the operation and the opening and closing operation is performed. Is assisted by the drive motor, so that the curtain can be opened and closed smoothly and lightly.

The best mode of an electric curtain according to the present invention will be described with reference to the drawings.
1 is a front view showing the overall configuration of the electric curtain according to the present invention, FIG. 2 is a plan view of the electric curtain of FIG. 1, FIG. 3 is a schematic diagram showing a drive system of the electric curtain of FIG. FIG. 5 is a block diagram showing an assist control circuit of the electric curtain in FIG. 1, FIG. 6 is a sectional view showing the structure of the curtain rail of the electric curtain in FIG. 1 is a cross-sectional view showing the structure of the pulley case of the electric curtain of FIG. 1, FIG. 8 is a front view showing the leading roller of the electric curtain of FIG. 1, FIG. 9 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing which shows the driving | running | working state of a front roller.

  As shown in FIGS. 1 to 4, the electric curtain A according to the present invention includes a curtain rail 2 fixed to the window frame 1, rail stops 3 and 3 attached to both ends of the curtain rail 2, and the curtain rail 2. Pulley cases 4 and 5 connected to both sides of the pulley, pulleys 6 and 7 pivotally supported in the pulley cases 4 and 5, and a drive mechanism portion 20 connected to the pulley case 4 for rotationally driving the pulley 6. The head runners 8, 8 and the plurality of intermediate runners 9, 9, 9... Which are supported by the curtain rail 2 via rollers and hold the upper edge of the curtain 10, and are wound around the pulleys 6, 7. The wire 11 is a connecting member, and adjustment means 12 for adjusting the winding length and tension of the wire 11 and the like. A string or a belt can be used instead of the wire 11. Further, the drive mechanism unit 20 is provided with an assist control circuit that assists the opening / closing operation when the curtain is manually opened / closed.

  In the electric curtain A configured as described above, the pulleys 6 and 7 are rotated by the rotational drive of the drive motor 21 of the drive mechanism unit 20, and the wire 11 is moved accordingly. Since the wire 11 is connected to the leading runner 8 with the winding length and tension adjusted through the adjusting means, the leading runner 8 moves along the curtain rail 2 as the wire 11 moves, Accordingly, the intermediate runner 9 moves. As a result, when the operation switch of the curtain 10 (not shown) is turned on, the curtain 10 is opened and closed electrically. The operation switch may be turned on / off with a remote controller. Furthermore, as will be described later, the electric curtain A of the present invention is such that an assist operation of the drive motor 21 is performed by the assist control circuit 23 when the curtain is manually opened and closed.

  As shown in FIG. 6, the curtain rail 2 has a locking portion 2 a for engaging with the window frame 1 with a bracket 17 at the top, and the left and right sides in which the wire 11 is slidably accommodated at the top. Cavities 2b and 2b are formed at symmetrical positions. The wiring part of the wire 11 as the connecting member is not limited to the upper part, and may be wired to the lower part or the middle part in the rail 2c. In addition, rails 2c and 2c that support the roller 13 in a freely rolling manner are formed at the lower portion at symmetrical positions. In addition, the latching | locking part 2a, the cavity part 2b, and the rail 2c are formed by extrusion molding etc. A hanging tool 14 for hanging the curtain 10 is supported in a suspended manner on the intermediate runner 9 that moves freely on the curtain rail 2.

  FIG. 7 is a cross-sectional shape diagram showing a connected state of the pulley case 6 and the curtain rail 2 connected to both ends of the curtain rail 2. The locking portion 2 a of the curtain rail 2 is fixed by a bracket 6 a of the pulley case 6. A hanging tool 15 for hanging the curtain 10 is supported below the pulley case 6.

  Further, FIGS. 8 to 10 show the leading runner 8, and the leading runner 8 rolls on the wire guide portion 29 and the rail 2 c that are slidably inserted into the hollow portion 2 b at the top of the curtain rail 2. It is formed from a frame body 27 having a moving roller 16 and a locking hole 31 for suspending the curtain 10. The outside of the frame body 27 is extended via a wire guide portion 29 in which the wire 11 of the adjusting means 12 is disposed. A wire guide hole 30 is provided. The wire 11 that has passed through the wire guide hole 30 is engaged by a wire fastener 36.

  4 controls the drive motor 21, the power transmission means 22 that transmits or blocks the rotational operation of the drive motor 21 to the pulley 6, and the drive motor 21 and the power transmission means 22. An assist control circuit 23 that assists the opening and closing operation when the curtain is manually opened and closed is provided. Further, the assist control circuit controls the reflector 24 and the sensor 25 that constitute the detection circuit 23 that detects the rotation of the drive motor 21 and the power transmission means 22, and the rotation of the drive motor 21 and the intermittent connection of the power transmission means 22. The drive control circuit 26 is provided.

  The drive motor 21 used in the drive mechanism unit 20 is a motor that can rotate forward and backward. The power transmission means 22 connected to the drive motor 21 generally uses an electromagnetic clutch, but a reverse input cutoff clutch unit may be used. The input side member 22a of the power transmission means 22 is directly connected to the drive motor 21, the output side member 22b is directly connected to the pulley 6, and the input side member 22a and the output side member 22b can be intermittently connected.

  Further, on the outer periphery of the input side member 22a and the output side member 22b of the power transmission means 22, a reflection plate 24a and a reflection plate 24b are attached in order to detect the rotation of the drive motor 21 and the pulley 6. The reflectors 24 a and 24 b are configured such that white portions and black portions are alternately arranged in a band shape, and the white portions reflect light from the light emitting elements of the sensor 25. Sensors 25a and 25b are disposed at positions where the reflecting plates 24a and 24b face each other. The reflection plates 24a and 24b and the sensors 25a and 25b constitute a part of the rotation detection circuit 26.

The sensors 25a and 25b use light emitting diodes as light emitting elements, and use phototransistors as light receiving elements. The light emitted from the light emitting diode is reflected by the white portion of the reflector 24 by a phototransistor, converted into an electrical signal by the phototransistor, and input to a sensor circuit 23a described later. Therefore, the rotation of the drive motor 21 and the pulley 6 can be detected by the combination of the sensors 25a and 25b and the reflection plates 24a and 24b.
As these sensors 25a, a two-phase encoder may be used in addition to the above.

  The assist control circuit B includes a rotation detection circuit 23 and a drive control circuit 26, as shown in FIG. The rotation detection circuit 23 receives signals from the sensors 25 a and 25 b, detects the rotation and direction of the drive motor 21 and the pulley 6, and sends the detection result to the drive control circuit 26. The drive control circuit 26 outputs a drive current for rotating the drive motor 21 in response to a signal input from the rotation detection circuit 23 and controls the power transmission means 22 to be intermittent.

  A manual assist operation of the electric curtain configured as described above will be described. First, when manually opening and closing the curtain 10, the end 10 of the curtain 10 is usually held and pulled in the opening direction or the closing direction. Then, the movement is transmitted to the wire 11 through the leading runner 8, so that the wire 11 moves. Then, the wire 11 rotates the wound pulley 6. The rotation of the pulley 6 rotates the output side member 22b of the power transmission means 22 having the same axis as the rotation shaft of the pulley 6.

  Since the rotation of the output side member 22b is the rotation of the reflection plate 24b, it is detected by the sensor 25b and output to the rotation detection circuit 23. The rotation detection circuit 23 determines the rotation direction and sends a rotation signal to the drive control circuit 26. The drive control circuit 26 outputs a drive current of the drive motor 21 to rotate the drive motor 21. Since the drive control circuit 26 puts the power transmission means 22 in the connected state, the pulley 6 is driven to rotate, and the curtain wire 10 is electrically driven via the leading runner 8 by moving the wound wire 11. It is to be operated with.

  Thus, since the power transmission means 22 is in the connected state during the opening / closing operation of the curtain 10, the reflecting plate 24a on the input member side 22a and the reflecting plate 24b on the output member side 22b rotate at the same speed. When the curtain 10 is completely closed or fully opened, it cannot be operated any more, so that the brake is applied. Then, since the movement is transmitted to the pulley 6 through the wire 11, the pulley 6 is also braked.

As a result, the rotational speed of the reflecting plate 24b of the output side member 22b having the same axis as the pulley 6 is slightly reduced. Then, since the rotation of the reflection plate 24a of the input side member 22a is rotated at the same speed as the drive motor 21 rotates, slip occurs between the input side member 22a and the output side member 22b, and the reflection plate 24a and the reflection plate A speed difference occurs between 24b. Since the speed difference is detected by the sensors 25a and 25b, the rotation detection circuit 23 determines. Then, a cutoff current is output from the drive control circuit 26 to the power transmission means 22, and the power transmission means 22 enters a cutoff state. At the same time, the drive current of the drive motor 21 output from the drive control circuit 26 is stopped, and the drive motor 21 is stopped.

  Similarly, when the curtain 10 is stopped halfway, the operating curtain 10 is forcibly stopped by hand, so that the brake is applied. Then, since it becomes the same as the above-mentioned case, the movement is transmitted to the pulley 6 through the wire 11, and the pulley 6 will also be in the braked state. As a result, the rotational speed of the reflecting plate 24b of the output side member 22b having the same axis as the pulley 6 is slightly reduced. Then, since the rotation of the reflection plate 24a of the input side member 22a is rotated at the same speed as the drive motor 21 rotates, slip occurs between the input side member 22a and the output side member 22b, and the reflection plate 24a and the reflection plate A speed difference occurs between 24b. Since this speed difference is detected by the sensors 25a and 25b, the rotation detection circuit 23 determines. Then, a cutoff current is output from the drive control circuit 26 to the power transmission means 22, and the power transmission means 22 enters a cutoff state. At the same time, the drive current of the drive motor 21 output from the drive control circuit 23b is stopped, and the drive motor 21 is stopped.

  As described above, the present invention can be normally used as an electric curtain, and even when the curtain is manually opened and closed, the manual opening and closing operation is automatically detected by the detection circuit at the start of the operation, and the opening and closing operation is detected. Since it is assisted by the driving motor of the part, the opening and closing operation of the curtain can be performed smoothly and lightly. The curtain can be easily stopped at an arbitrary position even during the opening and closing operation of the curtain.

It is a front view which shows the whole structure of the electric curtain which concerns on this invention. It is a top view of the electric curtain of FIG. It is a schematic diagram which shows the drive system of the electric curtain of FIG. It is a front view which shows the drive mechanism part of the electric curtain of FIG. It is a block diagram which shows the assist control circuit of the electric curtain of FIG. It is sectional drawing which shows the structure of the curtain rail of the electric curtain of FIG. It is sectional drawing which shows the structure of the pulley case of the electric curtain of FIG. It is a front view which shows the head roller of the electric curtain of FIG. It is YY sectional drawing of FIG. It is sectional drawing which shows the driving | running | working state of the front roller of FIG.

Explanation of symbols

A Electric curtain B Assist control circuit 1 Window frame 2 Curtain rail 3 Rail stop 4 Pulley case 5 Pulley case 6 Pulley 7 Pulley 8 Leader runner 9 Intermediate runner 10 Curtain 11 Wire 12 Adjusting means 13 Roller 14 Lifting tool 15 Lifting tool 16 Roller 17 Bracket 20 Drive mechanism 21 Drive motor 22 Power transmission means 23 Rotation detection circuit 24 Reflector 25 Sensor 26 Drive control circuit 27 Frame body 29 Connecting member guide portion 30 Connecting member guide hole 31 Connecting member fastener

Claims (4)

A curtain rail having a connecting member for towing and a leading runner;
A pulley case connected to both sides of the curtain rail and pivotally supporting a pulley inside;
A drive mechanism fixed to the pulley case for driving the pulley;
A connecting member wound between the pulleys and engaged with the leading runner;
And the drive mechanism section is provided with an opening / closing operation assist device for assisting an opening / closing operation when the curtain is manually opened / closed. A curtain rail having a connecting member for towing and a leading runner;
A pulley case connected to both sides of the curtain rail and pivotally supporting a pulley inside;
A drive mechanism fixed to the pulley case for driving the pulley;
A connecting member wound between the pulleys and engaged with the leading runner;
Adjusting means for adjusting the winding length and tension of the connecting member;
The drive mechanism section includes a drive motor, power transmission means for transmitting or interrupting the rotation of the drive motor to the pulley, and controlling the drive motor and the power transmission means to open and close when the curtain is manually opened / closed. An electric curtain comprising an assist control circuit for assisting operation. A curtain rail provided with a hollow portion that slidably accommodates the connecting member and the code guide portion of the leading runner, and a rail that rotatably supports the rollers of the leading runner and the intermediate runner at the bottom;
A pulley case connected to both sides of the curtain rail and pivotally supporting a pulley inside;
A drive mechanism fixed to the pulley case for driving the pulley;
A connecting member wound between the pulleys and engaged with the leading runner; and an adjusting means for adjusting a winding length and tension of the connecting member;
The drive mechanism includes a drive motor, power transmission means for transmitting or interrupting the rotational operation of the drive motor to the pulley, and controlling the drive motor and the power transmission means to assist the opening / closing operation when manually opening and closing the curtain. An assist control circuit,
The assist control circuit includes a power transmission unit, a rotation detection circuit that detects rotation of the power transmission unit, and a drive control circuit that controls rotation of the drive motor and intermittent connection of the power transmission unit. Electric curtain characterized by. A curtain rail having a connecting member and a leading runner;
A pulley case connected to both sides of the curtain rail and pivotally supporting a pulley therein, a drive mechanism fixed to the pulley case for driving the pulley, and a winding mechanism wound around the pulley and engaged with the leading runner An attached connecting member; and an adjusting means for adjusting a winding length and tension of the connecting member;
The drive mechanism includes a drive motor, power transmission means for transmitting or interrupting the rotational operation of the drive motor to the pulley, and controlling the drive motor and the power transmission means to assist the opening / closing operation when manually opening and closing the curtain. An assist control circuit,
The assist control circuit includes a power transmission unit, a rotation detection circuit that detects rotation of the power transmission unit, and a drive control circuit that controls rotation of the drive motor and the power transmission unit.
The rotation detection circuit includes a reflecting plate attached to an input side member and an output side member of the power transmission unit, and a sensor including a light emitting element and a light receiving element disposed at positions facing the reflecting plate. Electric curtain characterized by that.

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