EP1371807A1 - Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung - Google Patents

Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung Download PDF

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Publication number
EP1371807A1
EP1371807A1 EP02254014A EP02254014A EP1371807A1 EP 1371807 A1 EP1371807 A1 EP 1371807A1 EP 02254014 A EP02254014 A EP 02254014A EP 02254014 A EP02254014 A EP 02254014A EP 1371807 A1 EP1371807 A1 EP 1371807A1
Authority
EP
European Patent Office
Prior art keywords
motor
electromagnetic clutch
amplitude modulation
frequency modulation
controlled electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02254014A
Other languages
English (en)
French (fr)
Inventor
Yu-Che Wen
Song-He Lui
Ya-Wei Hsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Industrial Technology Research Institute ITRI
Nien Made Enterprise Co Ltd
Original Assignee
Industrial Technology Research Institute ITRI
Nien Made Enterprise Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Industrial Technology Research Institute ITRI, Nien Made Enterprise Co Ltd filed Critical Industrial Technology Research Institute ITRI
Priority to EP02254014A priority Critical patent/EP1371807A1/de
Publication of EP1371807A1 publication Critical patent/EP1371807A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor

Definitions

  • the present invention relates to Venetian blinds and, more specifically, to an electromagnetic clutch-controlled electric blind.
  • a regular Venetian blind comprises headrail, a bottom rail, a plurality of slats arranged in parallel between the headrail and the bottom rail, an amplitude modulation control mechanism for controlling lifting and positioning of the bottom rail to change the extending area of the blind, a frequency modulation control mechanism for controlling the tilting angle of the slats to regulate the light.
  • the amplitude modulation control mechanism comprises an endless lift cord suspended from the headrail at one lateral side for pulling by hand to lift/lower the bottom rail.
  • the frequency modulation control mechanism comprises a frequency modulation member disposed at one lateral side of the blind for permitting rotation by the user to regulate the tilting angle of the slats.
  • US Patent No. 5103888 discloses a motor-driven blind, which keeps the lift cord from sight.
  • a motor is mounted in the headrail or bottom rail, and controlled by a remote controller to roll up or let off the lift cord.
  • the motor is used to control lifting of the lift cord only.
  • the user When adjusting the tilting angle of the slats, the user must approach the blind and touch-control a tilting control unit. This operation manner is still not convenient.
  • the present invention has been accomplished to provide an electromagnetic clutch-controlled electric blind, which eliminates the aforesaid drawbacks. It is the main object of the present invention to provide an electromagnetic clutch-controlled electric blind, which controls lifting/lowering of the slats and bottom rail of the Venetian blind as well as tilting of the slats. It is another object of the present invention to provide an electromagnetic clutch-controlled electric blind, which is compact, and requires less installation space. It is still another object of the present invention to provide an electromagnetic clutch-controlled electric blind, which is inexpensive to manufacture.
  • the electromagnetic clutch-controlled electric blind comprises a blind body formed of a headrail, a set of slats, and a bottom rail, a power drive, the power drive including a reversible motor and electromagnetic clutch means connectable to the motor, an amplitude modulation set coupled to the motor for rotation with the motor to lift/lower the slats to the desired elevation, a frequency modulation set coupled to the motor through the electromagnetic clutch means and adapted for controlling tilting angle of the slats.
  • an electromagnetic clutch-controlled electric blind 100 is shown comprised of a blind body 10 , a power drive 20 , an amplitude modulation set 30 , a frequency modulation set 40 , an amplitude modulation detection unit 50 , and a frequency modulation detection unit 60 .
  • the blind body 10 is a Venetian blind comprised of a headrail 11 and a slat set 12 .
  • the headrail 11 is mountable to the top side of a window, comprising an inside. holding chamber 111 , and two through holes 112 bilaterally disposed at a bottom side in communication with the holding chamber 111 .
  • the slat set 12 is comprised of a plurality of slats 121 and a bottom rail 123 . Each slat 121 has two through holes 122 corresponding to the through holes 112 of the headrail 11 .
  • the power drive 20 comprises a double side reversible motor 21 , two electromagnetic clutches 22;23, a signal transmitter 24, a signal receiver 25 , and a battery 26 .
  • the motor 21 is mounted inside the holding chamber 111 of the headrail 11 .
  • the electromagnetic clutches 22;23 are coupled to the motor 21 at two sides to act upon rotation of the motor 21 .
  • the signal transmitter 24 can be a remote controller or wired controller for providing control signal to the signal receiver 25 .
  • the signal transmitter 24 is a remote controller for providing a radio control signal.
  • the signal receiver 25 is electrically connected to the motor 21 and the electromagnetic clutches 22;23 , and adapted to control the operation of the motor 21 and the connection between the motor 21 and the electromagnetic clutches 22;23 subject to the nature of the control signal received from the signal transmitter 24 .
  • the battery 25 can be storage battery, dry battery, planar battery, cylindrical battery, or mercury battery mounted inside of the holding chamber 111 and electrically connected to the motor 21 to provide the motor 21 with the necessary working power.
  • the amplitude modulation set 30 comprises a spindle 31 , two holders 32 , two bobbins 33 , and two amplitude modulation lift cords 34 .
  • the spindle 31 is a rod member having a non-circular cross section. According to this embodiment, the spindle 31 is a rectangular rod member having one end coupled to one electromagnetic clutch 22 .
  • the holders 32 are fixedly mounted in the holding chamber 111 of the headrail 11 corresponding to the through holes 112 of the headrail 11 , each defining a holding chamber 321 respectively disposed in communication with the through holes 112 of the headrail 11 .
  • the bobbins 33 are respectively mounted in the holding chambers 321 of the holders 32 for synchronous rotation with the spindle 31 .
  • Each bobbin 33 has an axial through hole 331 fitting the cross section of the spindle 31 .
  • the peripheral wall of each bobbin 33 defines a lift cord winding face 333 and a conical guide face 332 at one end of the lift cord winding face 333 .
  • the conical guide faces 332 of the bobbins 33 are respectively disposed in vertical alignment with the through holes 112 of the headrail 11 .
  • Each amplitude modulation lift cord 34 has one end fixedly connected to the end of the lift cord winding face 333 of one bobbin 33 , and the other end wound round the lift cord winding face 333 and the conical guide face 332 of the corresponding bobbin 33 and then inserted through one through hole 112 of the headrail 11 and one through hole 122 of each slat 12 and then fixedly connected to the bottom rail 123 .
  • the bottom rail 123 is lifted or lowered to the desired elevation.
  • the frequency modulation set 40 is comprised of a transmission gear set 41 , a spindle 42 , two wheels 43 , and two frequency modulation lift cords 44 .
  • the transmission gear set 41 is (comprised of a first gear 411 and a second gear 412 ) coupled to the other electromagnetic clutch 23 and controlled to rotate by the electromagnetic clutch 23 .
  • the spindle 42 has one end fixedly connected to the transmission gear set 41 , for rotation with the transmission gear set 41 .
  • the wheels 43 are respectively mounted on the spindle 42 corresponding to the through holes 112 of the headrail 11 for synchronous rotation with the spindle 42 , each having an axial hole 431 that fits the cross section of the spindle 42 .
  • the frequency modulation lift cords 44 are respectively wound round the wheels 43 , each having two ends respectively inserted through the through holes 112 of the headrail 11 and fixedly connected to the slats 121 and the bottom rail 123 for controlling tilting of the slats 121 to regulate the amount of light passing through the blind 10 .
  • the amplitude modulation detection unit 50 is installed in the holding chamber 111 of the headrail 11 between the holders 32 of the amplitude modulation set 30 , and adapted to stop the motor 21 of the power drive 20 when the slats 121 lowered to the lower limit position or lifted to the upper limit position.
  • the amplitude modulation detection unit 50 is comprised of a mounting plate 51 , locating block 52 , a roller 53 , and two limit switches 54;55 .
  • the mounting plate 51 is fixedly fastened to the peripheral wall of the holding chamber 111 of the headrail 11 .
  • the locating block 52 is fixedly mounted inside the holding chamber 111 of the headrail 11 , having a center screw hole 521 .
  • the roller 53 is coupled to the spindle 31 of the amplitude modulation set 30 for synchronous rotation, having an outer thread 532 threaded into the center screw hole 521 of the locating block 52 .
  • the roller 53 has an axial hole 531 fitting the cross section of the spindle 31 .
  • Rotation of the spindle 31 causes synchronous rotation of the roller 53 with the spindle 31 and axial movement of the roller 53 relative to the locating block 52 .
  • the limit switches 54;55 are respectively mounted on the mounting plate 51 at two sides relative to the wheel 53 (in positions of the ends of the path of the axial movement of the wheel 53 corresponding to the upper limit position and lower limit position of the slats 121 of the blind 10 ), and electrically connected to the motor 21 .
  • the wheel 53 touches one limit switch 54 or 55 , thereby causing the limit switch 54 or 55 to stop the motor 21 .
  • the frequency modulation detection unit 60 is comprised of a wheel 61 , a support 62 , and a sensor 63 .
  • the wheel 61 is fixedly fastened to one end of the spindle 42 of the frequency modulation set 40 remote from the transmission gear set 41 for synchronous rotation with the spindle 42 , having three pins protruded from the periphery at different angles, namely, the left limit position detection pin 611 , the horizontal position detection pin 612 , and the right limit position detection pin 613 .
  • the support 62 is fixedly mounted in the holding chamber 111 of the headrail 11 .
  • the sensor 63 is fixedly mounted on the support 62 and electrically connected to the motor 21 of the power drive 20 , having a left limit position detection portion 631 , a horizontal position detection portion 632 , and a right limit position detection portion 633 respectively disposed corresponding to the left limit position detection pin 611 , the horizontal position detection pin 612 , and the right limit position detection pin 613 .
  • the wheel 61 is rotated with the spindle 42 .
  • the left limit position detection pin 611 induces the left limit position, detection portion 631 , thereby causing the sensor 63 to stop the motor 21 .
  • the right limit position detection pin 613 induces the right limit position detection portion 633 , thereby causing the sensor 63 to stop the motor 21 .
  • the operation of the present invention is outlined hereinafter.
  • the signal transmitter 23 of the power drive 20 When the user operated the signal transmitter 23 of the power drive 20 to transmit a control signal of lifting the blind, the signal receiver 24 immediately receives the signal.
  • the signal receiver 24 switches on one electromagnetic clutch 22 to connect the amplitude modulation set 30 to the motor 21 and switches off the other electromagnetic clutch 23 to disconnect the frequency modulation set 40 from the motor 21 and, at the same time drives the motor 21 to rotate in one direction, thereby causing the spindle 31 of the amplitude modulation set 30 to be rotated with the motor 21 .
  • the bobbins 33 are rotated with the spindle 31 to roll up the amplitude modulation lift cords 34 along the respective conical guide faces 332 and then the respective lift cord winding faces 333 smoothly to lift the bottom rail 123 and then the slats 121 to the desired elevation.
  • the amplitude modulation detection unit 50 is induced to stop the motor 21 .
  • the operation of the present invention is outlined hereinafter.
  • the signal transmitter 23 of the power drive 20 When the user operated the signal transmitter 23 of the power drive 20 to transmit a control signal of lowering the blind, the signal receiver 24 immediately receives the signal.
  • the signal receiver 24 switches on one electromagnetic clutch 22 to connect the amplitude modulation set 30 to the motor 21 and switches off the other electromagnetic clutch 23 to disconnect the frequency modulation set 40 from the motor 21 and, at the same time drives the motor 21 to rotate in the reversed direction, thereby causing the spindle 31 of the amplitude modulation set 30 to be rotated with the motor 21 .
  • the bobbins 33 are rotated with the spindle 31 to let off the amplitude modulation lift cords 34 and to further lower the bottom rail 123 and the slats 121 .
  • the amplitude modulation detection unit 50 is induced to stop the motor 21 (see FIGS. 6 ⁇ 8).
  • the operation is described hereinafter.
  • the user operates the signal transmitter 23 to transmit a slat tilting control signal to the signal receiver 24 .
  • the signal receiver 24 Upon receipt of the control signal, the signal receiver 24 immediately switches off one electromagnetic clutch 22 to disconnect the amplitude modulation set 30 from the motor 21 and switches on the other electromagnetic clutch 23 to connect the frequency modulation set 40 to the motor 21 and, at the same time drives the motor 21 to rotate in one direction, thereby causing the transmission gear set 41 to rotate the spindle 42 and the wheels 43 f the frequency modulation set 40 , so as to turn the frequency modulation lift cords 44 in tilting the slats 121 .
  • the left limit position detection pin 611 or right limit position detection pin 613 of the frequency modulation detection unit 60 immediately stops the motor 21 .
  • the signal receiver 25 switches on the electromagnetic clutch 23 to connect the frequency modulation set 40 to the motor 21 , for enabling the slats 121 to be automatically regulated to the horizontal position (by means of the control of the relative action between the horizontal position pin 612 and the horizontal position detection portion 632 ), i.e., when the horizontal position pin 612 and the horizontal position detection portion 632 matched, the electromagnetic clutch 23 is switched off to disconnect the frequency modulation set 40 from the motor 21 and the electromagnetic clutch 22 is switched on to connect the amplitude modulation set 30 to the motor 21 before adjusting the slats 121 .
  • the present invention can be explained by means of the system block diagram of FIG. 10. As illustrated, the two sides of the motor 21 are respectively connected to the amplitude modulation set 30 and the frequency modulation set 40 by the electromagnetic clutches 22;23 .
  • One single driving source is sufficient to drive the amplitude modulation set 30 and the frequency modulation set 40 .
  • FIG. 11 is a system block diagram showing a second embodiment of the present invention.
  • the amplitude modulation set 30 is directly coupled to the motor 21
  • the frequency modulation set 40 is coupled to the motor 21 through the transmission gear set 41 and the electromagnetic clutch 23 .
  • switch off the electromagnetic clutch 23 to disconnect the frequency modulation set 40 from the motor 21 .
  • switch on the electromagnetic clutch 23 to connect the frequency modulation set 40 to the motor 21 .
  • the amplitude modulation set 30 moves slightly following the action of the frequency modulation set 40 . However, because this movement causes the bottom rail to be lifted or lowered within a short distance only, this insignificant amount of movement does not affect the reliability of the operation.
  • FIG. 12 is a system block diagram showing a third embodiment of the present invention.
  • the motor 21' is a single side motor coupled to the transmission gear set 41 ; the amplitude modulation set 30 and the frequency modulation set 40 are connected in parallel to the transmission gear set 41 through the electromagnetic clutches 22;23 respectively.
  • FIG. 13 is a system block diagram showing a fourth embodiment of the present invention.
  • the motor 21' is a single side motor coupled to the transmission gear set 41 ;
  • the amplitude modulation set 30 is directly connected to the transmission gear set 41 ;
  • the frequency modulation set 40 is connected to the transmission gear set 41 through the electromagnetic clutch 23 .
  • FIG. 14 is a system block diagram showing a fifth embodiment of the present invention.
  • the amplitude modulation set 30 is coupled between the single side motor 21' and the transmission gear set 41
  • the frequency modulation set 40 is coupled to the transmission gear set 41 through the electromagnetic clutch 23 .
EP02254014A 2002-06-10 2002-06-10 Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung Withdrawn EP1371807A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02254014A EP1371807A1 (de) 2002-06-10 2002-06-10 Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02254014A EP1371807A1 (de) 2002-06-10 2002-06-10 Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung

Publications (1)

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EP1371807A1 true EP1371807A1 (de) 2003-12-17

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EP02254014A Withdrawn EP1371807A1 (de) 2002-06-10 2002-06-10 Elektrische Verdunkelungseinrichtung mit elektromagnetischer Kupplung

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518379A (zh) * 2011-12-22 2012-06-27 广东顶固集创家居股份有限公司 可控调光门窗组件及采用该组件的家居配套
CN107002463A (zh) * 2014-11-06 2017-08-01 艾西斯实验有限公司 用于具有连续绳环的窗户覆盖系统的驱动系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046268A (en) * 1963-07-23 1966-10-19 Avery & Co Est 1834 Ltd J Electrically operated venetian blinds
JPH01275891A (ja) * 1988-04-26 1989-11-06 Tokyo Blind Kogyo Kk 電動式横型ブラインド
JPH0462288A (ja) * 1990-07-02 1992-02-27 Toso Co Ltd 電動ベネシャンブラインド
US6079471A (en) * 1994-04-06 2000-06-27 Newell Operating Company Cordless, balanced window covering
JP2001248368A (ja) * 2000-03-06 2001-09-14 Nichibei Co Ltd ブラインド

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1046268A (en) * 1963-07-23 1966-10-19 Avery & Co Est 1834 Ltd J Electrically operated venetian blinds
JPH01275891A (ja) * 1988-04-26 1989-11-06 Tokyo Blind Kogyo Kk 電動式横型ブラインド
JPH0462288A (ja) * 1990-07-02 1992-02-27 Toso Co Ltd 電動ベネシャンブラインド
US6079471A (en) * 1994-04-06 2000-06-27 Newell Operating Company Cordless, balanced window covering
JP2001248368A (ja) * 2000-03-06 2001-09-14 Nichibei Co Ltd ブラインド

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 046 (M - 0926) 26 January 1990 (1990-01-26) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 258 (M - 1264) 11 June 1992 (1992-06-11) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 26 1 July 2002 (2002-07-01) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102518379A (zh) * 2011-12-22 2012-06-27 广东顶固集创家居股份有限公司 可控调光门窗组件及采用该组件的家居配套
CN107002463A (zh) * 2014-11-06 2017-08-01 艾西斯实验有限公司 用于具有连续绳环的窗户覆盖系统的驱动系统

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