US3835911A - Electrically operable drive arrangement for venetian blinds - Google Patents

Electrically operable drive arrangement for venetian blinds Download PDF

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Publication number
US3835911A
US3835911A US00311762A US31176272A US3835911A US 3835911 A US3835911 A US 3835911A US 00311762 A US00311762 A US 00311762A US 31176272 A US31176272 A US 31176272A US 3835911 A US3835911 A US 3835911A
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US
United States
Prior art keywords
feeler
draw tape
plane
header
tape
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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.)
Expired - Lifetime
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US00311762A
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English (en)
Inventor
W Horst
H Coldewey
M Ammazzalorso
E Schuppler
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Individual
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Individual
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    • 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
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S160/00—Flexible or portable closure, partition, or panel
    • Y10S160/17—Venetian blinds, motor driven

Definitions

  • the invention relates to an electrically operable drive arrangement for venetian blinds with at least one draw [21] Appl 3ll762 I tape which tape is wound up or down by a motor located in the header. Switches in the header are oper- [30] Foreign Application Priority Data ated by a feeler which moves respectively perpendicu- Jan. 13, 1972 Germany 7201069[U] lar to of Parallel to the tape as the tape moves from its normal tangential position on the take-up roller upon [52] US. Cl. 160/168 bottoming of the blind, or when the blind reaches fully 51 1m. (:1 E06b 9/30 raised Position- [58] Field of Search 160/168 7 Claims, 6 Drawing Figures PAIENIEDSEPI H914 3' 83 SHEET 101 2 5,911
  • the invention is based on the problem to place a drive arrangement of the aforementioned type, avoiding the mentioned disadvantages, in a sturdy, simple manner,safe in operation, in the header of a venetian blind in such a way that the blind can assume an upper and lower adjustable end position reliably and reproduceably.
  • a feeler is arranged movable in a first plane perpendicular to the draw tape to operate one switch and also in a second plane which runs essentially parallel to the loaded draw tape to operate a second switch for the motor.
  • the upper limit position can be adjusted especially advantageously to a certain height factor, for instance, agreeing with adjacent similar venetian blinds, if a moving element is attached on the bottom board, for instance in the form of an adjustable release pin.
  • FIG. 1 is a schematic, perspective and partly sectional view of a drive arrangement, in accordancewith the invention, for a venetian blind which, for reasons of clarity, has only a single draw tape with pertaining feeler;
  • FIG. 2 is a cross section through the header of the venetian blind of FIG. 1 with tightened draw tape;
  • FIG. 3 is the same view as in FIG. 2, however, with relieved draw tape
  • FIG. 4 is a longitudinal section through the header of FIGS. 2 and 3 with a switch for the upper limit position switch-off of the motor and with the feeler in rest position in relation to this switch;
  • FIG. 5 is a cross section through the header corresponding to FIGS. 2 and 3, however, with the feeler moved into its upper switch-off position by the stack of slats;
  • FIG. 6 is a view from above on the header, which is open on top, with a switch for the lower limit position switch-off of the motor and with a limit position switching setting of the feeler, indicated by dash-dots, for the lower end position of the bottom board with the draw tape released.
  • FIG. 1 an electrically operable drive arrangement for venetian blinds is schematically illustrated.
  • this venetian blind is illustrated with only one draw tape 2 and with only three slats 4; as usual with such blinds, a larger number of slats 4 is guided on the draw tapes 2 by means of openings.
  • the upper part of the venetian blind shown in the drawing consists of a hollow header 1 which is open at the top and which is fastened in the usual manner on the ceiling or on a wall and in which there is located a motor 5 as a drive source of the blind, and a horizontally running drive shaft 6 on which, among other things, a winding roller 7 is placed.
  • the motor 5 can be operated in both directions of rotation so that the draw tape 2 guided on the winding roller 3 can be wound or unwound according to the direction of rotation.
  • all elements for turning of slats 4 and for the switch-off of the motor 5 in both turning directions are put together in a turning and switch-off arrangement whose base plate 10 is mounted in the header 1 by means of screws (not shown) so that it can be exchanged.
  • the base plate 10 has several openings of which opening lla serves as a passage for a feeler 12, which will be described in detail later, and an opening 11b which serves as a passage for the draw tape 2. Additional openings are provided for straps (not shown in the drawing) for the adjustment of slats 4.
  • the feeler 12 has a point of rotation 13 in the form of a screw threaded in the base plate 10; however, since the free end of the feeler 12 is bent at an angle toward the bottom and is guided through the opening 11a of the base plate 10, the feeler 12 can be turned in the horizontal plane at an angle limited by the length of the opening 1 la.
  • This horizontal turning plane is designated as the first plane of movement of the feeler 12.
  • the feeler 12 is shown in connection with the tripping of a first microswitch 16 which, in the present example, is designated as a work contact and is located in the circuit of the motor 5 and therefore closed when the feeler 12 is in its operating position indicated by dashdotted lines.
  • the feeler constantly assumes this operating position as long as the bottom board 3 hangs on the draw tape and stretches it tangentially from the roller 7 according to FIG. 1.
  • the feeler is pressed in the direction of the arrow (FIG. 3) by the spring-loaded tripping of the microswitch whereby the motor is switched off in the downward direction.
  • the switching-off in the downward direction is analogously effected in the same manner by the release of the draw tape 2 when the bottom board encounters an obstacle and the tape 2 slackens.
  • the feeler 12 has a second release attachment 15, which pertains to a microswitch 17, with a vertical plane of operation.
  • the feeler 12 On the basis of its relatively great length between the point of rotation 13 and guide slot 18, the feeler 12 is in a position to follow, with its free end, a vertically running second plane of movement when an element provided in connection with the bottom board 3 bears (in the upper end position of the venetian blind) on this free end of the feeler from below.
  • this element is the uppermost slat 4 of the slat package which is pushed together, This slat 4 presses against the bent-over free end of the feeler 12. If, according to FIG. 5, the feeler is moved vertically upward toward the base plate 10, the second release attachment trips the second microswitch 17, which is made as a rest contact, and the motor 5 is switched off in its upward direction of rotation.
  • the actuation of the free end of the feeler 12 according to FIG. 1 is not carried out by the uppermost slat 4 but by a separate adjustable release pin 21 which is attached on the bottom board 3 and protrudes through the opening for the draw tape in the slats adjacent to the draw tape 2 when, during the upward movement, the slats 4 are stacked on the bottom board 3 one after the other.
  • this adjustable release pin 21 there can be achieved a uniform upper limit position arrangement of all bottom boards 3 of quite a number of blinds which, for instance, are installed in a common window front independent of the installing tolerances which the individual headers 1 of the various blinds have with respect to each other.
  • the draw tape 2 is guided through the guide slot 18 on the free end of the feeler 12.
  • This guide slot 18 has a widening in the form of a threading slot 19 which permits the threading and unthreading of the draw tape 2. This is especially valuable during servicing or repair work when the feeler 12 must be separated from the draw tape 2. In this case, the slats 4 and the bottom board 3 need not be separated from the draw tape.
  • An electrically operable drive arrangement for venetian blinds with-at'least one draw tape comprising a windup roller and motor located in a header, a bottom board on a blind attached to said draw tape, switch operating means including a single unitary feeler mounted to said header and movable in a first plane running essentially transversely to the loaded draw tape with the feeler end portion operatively adjacent and responsive to the transverse location of the tape for effecting movement of the feeler in said first plane and additionally movable in a second plane which runs essentially parallel to the loaded draw tape with the said feeler end portion responsive to vertical location of the blind bottom board for effecting movement of the feeler in said second plane, a first switch operable by said feeler upon movement thereof in the first plane perpendicular to said draw tape, and a second switch operable by said feeler in the second plane parallel to said draw tape, each of said switches being effective to stop operation of said motor in a given direction of rotation.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
US00311762A 1972-01-13 1972-12-04 Electrically operable drive arrangement for venetian blinds Expired - Lifetime US3835911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7201069 1972-01-13

Publications (1)

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US3835911A true US3835911A (en) 1974-09-17

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ID=6627513

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Application Number Title Priority Date Filing Date
US00311762A Expired - Lifetime US3835911A (en) 1972-01-13 1972-12-04 Electrically operable drive arrangement for venetian blinds

Country Status (4)

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US (1) US3835911A (fr)
BE (1) BE805278A (fr)
CH (1) CH545406A (fr)
NL (1) NL144025B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706726A (en) * 1985-01-10 1987-11-17 V. Kann Rasmussen Industri A/S Electric control of venetian blind
US5178200A (en) * 1990-12-14 1993-01-12 Halge Hagen Venetian-or pleated blinds, particularly for multiple pane insulating glass window
US5495153A (en) * 1993-06-11 1996-02-27 Harmonic Design, Inc. Head rail-mounted mini-blind actuator for vertical blinds and pleated shades
US5517094A (en) * 1993-07-20 1996-05-14 Harmonic Design, Inc. Head rail-mounted mini-blind actuator
US5698958A (en) * 1993-06-11 1997-12-16 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
US5699847A (en) * 1995-06-21 1997-12-23 Somfy Motorized roll-up device for venetian blinds
US5793174A (en) * 1996-09-06 1998-08-11 Hunter Douglas Inc. Electrically powered window covering assembly
USRE35926E (en) * 1990-12-14 1998-10-20 Nordicon Develop Aps Venetian- or pleated blinds, particularly for multiple pane insulating glass window
US6060852A (en) * 1993-06-11 2000-05-09 Harmonic Design, Inc. Head rail-mounted actuator for window covering
US20130048231A1 (en) * 2011-08-31 2013-02-28 Qualitas Manufacturing, Inc. Base Slat Retention and Motor Triggering For Rolling Protective Shutters
US20190085622A1 (en) * 2017-09-20 2019-03-21 Whole Space Industries Ltd Window covering control apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675448A5 (en) * 1986-03-25 1990-09-28 Rau Metall Gmbh & Co Venetian blind slats rotating device
CH676869A5 (en) * 1987-07-09 1991-03-15 Rau Metall Gmbh & Co Blind-salt-turning mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603372A (en) * 1968-09-18 1971-09-07 Hueppe Justin Fa Electrically operated venetian blind

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603372A (en) * 1968-09-18 1971-09-07 Hueppe Justin Fa Electrically operated venetian blind

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706726A (en) * 1985-01-10 1987-11-17 V. Kann Rasmussen Industri A/S Electric control of venetian blind
US5178200A (en) * 1990-12-14 1993-01-12 Halge Hagen Venetian-or pleated blinds, particularly for multiple pane insulating glass window
USRE35926E (en) * 1990-12-14 1998-10-20 Nordicon Develop Aps Venetian- or pleated blinds, particularly for multiple pane insulating glass window
US5698958A (en) * 1993-06-11 1997-12-16 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
US5714855A (en) * 1993-06-11 1998-02-03 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
US5495153A (en) * 1993-06-11 1996-02-27 Harmonic Design, Inc. Head rail-mounted mini-blind actuator for vertical blinds and pleated shades
US5907227A (en) * 1993-06-11 1999-05-25 Harmonic Design, Inc. Head rail-mounted actuator for window coverings
US6060852A (en) * 1993-06-11 2000-05-09 Harmonic Design, Inc. Head rail-mounted actuator for window covering
US5517094A (en) * 1993-07-20 1996-05-14 Harmonic Design, Inc. Head rail-mounted mini-blind actuator
US5699847A (en) * 1995-06-21 1997-12-23 Somfy Motorized roll-up device for venetian blinds
US5883480A (en) * 1995-11-15 1999-03-16 Harmonic Desing, Inc. Window covering with head rail-mounted actuator
US5793174A (en) * 1996-09-06 1998-08-11 Hunter Douglas Inc. Electrically powered window covering assembly
US20130048231A1 (en) * 2011-08-31 2013-02-28 Qualitas Manufacturing, Inc. Base Slat Retention and Motor Triggering For Rolling Protective Shutters
US8746321B2 (en) * 2011-08-31 2014-06-10 Qualitas Manufacturing, Inc. Base slat retention and motor triggering for rolling protective shutters
US20190085622A1 (en) * 2017-09-20 2019-03-21 Whole Space Industries Ltd Window covering control apparatus
US10676988B2 (en) * 2017-09-20 2020-06-09 Whole Space Industries Ltd. Window covering control apparatus

Also Published As

Publication number Publication date
BE805278A (fr) 1974-01-16
NL7216594A (fr) 1973-07-17
NL144025B (nl) 1974-11-15
CH545406A (de) 1973-12-15

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