US3260302A - Venetian blind and the like - Google Patents

Venetian blind and the like Download PDF

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Publication number
US3260302A
US3260302A US369560A US36956064A US3260302A US 3260302 A US3260302 A US 3260302A US 369560 A US369560 A US 369560A US 36956064 A US36956064 A US 36956064A US 3260302 A US3260302 A US 3260302A
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US
United States
Prior art keywords
shaft
frame means
swivel frame
spring
wind
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.)
Expired - Lifetime
Application number
US369560A
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English (en)
Inventor
Griesser Friedrich
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.)
Griesser AG
Original Assignee
Griesser AG
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Filing date
Publication date
Application filed by Griesser AG filed Critical Griesser AG
Application granted granted Critical
Publication of US3260302A publication Critical patent/US3260302A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/308—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape with coaxial tilting bar and raising shaft
    • 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
    • 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

Definitions

  • the present invention has reference to an improved shutter and, more specifically, to improvements in shutters of the type provided with a plurality of individual slats which can be gathered together or stacked when the shutter is in raised condition, such shutters being generally designated in the art as Venetian-type blinds.
  • the present invention concerns a shutter or Venetian blind of the aforementioned type provided with a lifting tape engaging with the lowermost slat and extending upwardly through openings provided at the slats, this lifting tape being windable upon a wind-up drum fixedly seated upon a driveable wind-up shaft.
  • carrier members are provided which engage with the slats and are connected to swivel frame means seated with frictional contact upon the wind-up shaft through the agency of the wind-up drum, and wherein stop means are provided for arresting the swivel frame means in its terminal positions during further rotation of the wind-up shaft.
  • the pivoting of the slats occurs by operating the wind-up shaft which by frictional contact is capable of entrainably rotating the swivel frame means between its terminal positions.
  • the swivel frame means is arrested within the confines of its swivel zone solely by virtue of the aforementioned frictional contact and thus, with an appropriate pulling force exerted upon the carrier members can be displaced or shifted. This can lead to an unintentional shifting of the slats.
  • Such is especially disadvantageous when the individual swivel frame means (generally two are provided) are not connected with one another and therefore can be brought into different swivel positions.
  • a further important object of the present invention resides in the provision of an improved roller shutter which is relatively simple in construction, highly reliable in operation, economical to manufacture, not readily subject to jamming or incorrect winding, and wherein the slats thereof are positively retained in selected position.
  • a locking mechanism is provided between the wind-up shaft and the swivel frame means which upon actuation of the wind-up shaft in the one or other direction is released, whereas when the wind-up shaft is stationary the locking mechanism couples the wind-up shaft with the swivel frame means under the action of a torsional or turning force exerted upon the swivel frame means in one or the other sense of rotation, and thereby prevents swiveling or displacement of the aforesaid swivel frame means.
  • a spiral spring is employed as the locking mechanism and is wound about the hub portion of the wind-up drum. Both of the end portions of such spiral spring cooperate with a respective stop means at the swivel frame means and with a stationary stop means in such a manner that with actuation of the wind-up shaft the stationary stop means exerts a pressure against the one or other spring end tending to open the spring coils or windings to thereby release the locking mechanism,
  • the spring end portions which are advantageously radially flexed away from the hub portion can cooperate with stop means of the swivel frame means which consist of flaps or flanges of a side portion of the swivel frame means bent inwardly in the axial direction, whereas the stationary stop means is formed by a flange or flap bent in axial direction from a bearing secured in a housing.
  • a further flap can be bent out of the mentioned side portion of said swivel frame means which extends inwardly in axial direction over the spring coils for the purpose of preventing a too pronounced opening of the spring coils.
  • FIGURE 1 is a vertical sectional view taken through a portion of the bearing housing of a wind-up shaft of a Venetian blind of the present invention
  • FIGURE 2 is a horizontal sectional view taken through the bearing housing depicted in FIGURE 1;
  • FIGURE 3 is a vertical cross-sectional view taken along lines III-III of FIGURE 2, depicting the swivel mount or frame means in one of its terminal positions;
  • FIGURE 4 is a cross-sectional view similar to FIG- URE 3, yet in this instance illustrating the swivel frame means in its central or middle position;
  • FIGURE 5 is a cross-sectional view similar to FIG- URE 3, but in this case depicting the swivel frame means in its other terminal position.
  • reference numeral 1 denotes a bearing housing or casing of substantially U- shaped cross-sectional configuration for accommodating a take-up or wind-up shaft 2 of the Venetian blind.
  • Bearings 3a and 3b secured in the housing 1 are provided for the wind-up shaft 2.
  • a wind-up drum or roller 4 is secured to the wind-up shaft 2 between both of the bearings 3a and 3b, a lifting tape 5 being windable upon such wind-up drum 4.
  • the lifting tape 5 is downwardly guided over a roller 6, through a slot 6a in the floor of the bearing housing 1 as well as through appropriate openings (not shown) of the slats 7.
  • Such lifting tape 5 is secured in any appropriate non-illustrated manner to the lowermost slat of the shutter or blind assembly.
  • a swivel fname means 8 which encircles the wind-up drum 4 at a radial spacing over more than half of its circumference.
  • Carrier tapes 9 are suitably fixed to the peripheral portion of the swivel frame means 8 and are directed downwardly over respective guide rollers 10 and appropriate openings provided at the flood of the bearing housing 1, then being secured to the edges of the slats 7, as generally indicated by reference numeral 9a.
  • a stop flap or tab 12 is provided at the inner face of the same side portion 8a of the swivel frame means 3 which, when the lifting tape is unwound, bears against stop means 13 which, for example, under spring action extends out of a hub portion 4a of the wind-up drum 4 into the rocking or swivel path of the flap 12, as best shown in FIGURE 2 and, thus, during simultaneous contact of the flap 11 at the bearing 3b prevents further rotation of the wind-up shaft 2 in the let-down or lowering direction of the blind unit.
  • stop means 13 is held out of the swivel path of the stop flap 12 by means of an arm or lever 13a which is pressed into the interior of the drum 4 by means of the lifting tape 5.
  • Resilient means in the form of a spiral spring 14 is wound upon hub portion 412 of the drum 4 situated opposite the hub portion 4a.
  • Both of the end portions 14a, 14b of the spinal spring 14, displaced with respect to one another about half of the circumference of the hub portion 4b, are radially flexed towards the outside, as best seen in FIGURES 2 to 5.
  • Two top noses or flaps 15a 15b inwardly flexed in the axial direction are provided at the side portion 8b of the swivel frame means 8 for operable cooperation with these spring and portions 14a, 14b.
  • a further nose or flap 15c inwardly bent in the axial direction of the swivel frame means 8 is located between the flaps 15a, 15b.
  • a stationary stop tab or nose 16 is inwardly bent and is likewise provided for cooperation with both of the spring end portions 14a, 14b.
  • the swivel frame means 8 Upon rotation of the wind-up shaft 2 in a direction for lowering the blind or shutter (direction of arrow a in FIGURE 3) the swivel frame means 8 is also entrained by friction in the same rotational sense until the nose or flap 11 leading in the direction of rotation comes to bear against the associated bearing impact or stop surfaces. On the other hand, the wind-up drum 2 can be further rotated by overcoming the frictional contact with the swivel frame means 8.
  • the spring 14 seated upon the hub portion 4b is rotatably entrained during rotation of the Wind-up shaft 2 and thus abuts against the bearing stop means 16 by means of its spring end portion 14b which leads in the direction of rotation.
  • the winding sense of the spring 14 is selected such that with impact of the spring end portion 14b at the stationary stop means 16 during rotation of the wind-up shaft 2 a force is exerted upon the aforesaid end portion 14b tending to open the spring coils.
  • the nose 15c prevents the spring from excessively opening up.
  • the drum hub 4b serving as a seat for the spring 14 as well as the wind-up shaft 2 can thus be further rotated in the direction of arrow a in spite of the spring 14 coming to rest.
  • the liftin g tape 5 is wound-off the drum 4 so that a non-illustrated spring presses the ⁇ arm 133a out of the interior of the drum 4 to thereby place the stop means 13 in the operating zone of the stop means 12.
  • the swivel frame means 8 is coupled with the drum 4 and the wind-up shaft 2 respectively, through the agency of the spring means 14, and since such wind-up shaft 2 posseses a self-locking drive a rocking or displacement of the swivel frame means 8 in the direction of the arrow 0 and a displacement of the slats 7 due to tension exerted upon the carrier band 9 is impossible.
  • a torque exerted through the *bands 9 upon the swivel frame 8 thus cannot cause the latter to pivot or the blinds to move.
  • Venetian-type blind comprising a plurality of slats provided with openings for a lifting tape; a drivable windup shaft; a wind-up drum rigidly supported by said shaft and including a hub; a lifting tape engageable with the lowermost one of said slats extending upward through said openings and windable upon said drum; swivel frame means seated for frictional contact upon said shaft through the agency of said drum; carrier means engaging said slats and operably connected with said swivel frame means; stop means for arresting said swivel frame means in its terminal position during further rotation of the shaft; a locking mechanism for locking the swivel frame means to the shaft, comprising a spiral spring wound upon said hub and having a pair of angularly spaced ends; stationary stop means for engaging one or the other of said pair of ends, during said further rotation, in a direction causing said spring to open up around the hub to permit turning thereof while the spring is held at rest; and two angularly spaced
  • Venetian-type. blind as defined in claim 2 including further flap means bent out of said side portion of said swivel frame means inwardly in the axial direction and extending over the spring windings of said spiral spring in order to prevent a too pronounced opening of the aforesaid spring windings, said further flap means being disposed between said two spaced stop means of said swivel frame means.
  • Venetian-type blind as defined in claim 3 further including a stop flap, stop means displaceable into and out of said hub portion cooperating with said stop flap for preventing further lowering of said Venetian-type blind.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
US369560A 1963-05-24 1964-05-22 Venetian blind and the like Expired - Lifetime US3260302A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH649463A CH400817A (de) 1963-05-24 1963-05-24 Raff-Lamellenstore

Publications (1)

Publication Number Publication Date
US3260302A true US3260302A (en) 1966-07-12

Family

ID=4310498

Family Applications (1)

Application Number Title Priority Date Filing Date
US369560A Expired - Lifetime US3260302A (en) 1963-05-24 1964-05-22 Venetian blind and the like

Country Status (6)

Country Link
US (1) US3260302A (de)
AT (1) AT252536B (de)
BE (1) BE648122A (de)
CH (1) CH400817A (de)
DE (1) DE1509369A1 (de)
NL (1) NL6405456A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310099A (en) * 1965-07-19 1967-03-21 Hunter Electric venetian blind
US3327765A (en) * 1964-06-29 1967-06-27 Strahm Andre Venetian blinds
US4088171A (en) * 1976-04-30 1978-05-09 Storen- Und Maschinenfabrik Emil Schenker Ag Venetian blind
US4334572A (en) * 1980-01-24 1982-06-15 Griesser Ag Venetian blind construction
US4487245A (en) * 1980-08-29 1984-12-11 Toso Kabushiki Kaisha Torque-adjusting device for use in a roller blind
US5123472A (en) * 1990-10-11 1992-06-23 Toso Company, Limited Apparatus for lifting and tilting slats in a venetian blind
EP0608042A2 (de) * 1993-01-21 1994-07-27 Newell Operating Company Kopfschiene für Minivorhang
US6619365B1 (en) * 2002-03-07 2003-09-16 Industrial Technology Research Institute Plug-in transmission mechanism for a motor-driven blind
US20040231807A1 (en) * 2003-05-21 2004-11-25 Springs Window Fashions Lp Venetian blind ladder drum and method of assembling venetian blind
CN103306594A (zh) * 2013-07-03 2013-09-18 立森（博罗）木器有限公司 一种隐形拉绳窗帘
US20140360682A1 (en) * 2013-06-05 2014-12-11 Han-Sen Lee Single cordless control for window covering

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2400643C2 (de) * 1974-01-08 1983-12-15 Dieter 7340 Geislingen Rau Auf einer Betätigungswelle einer Lamellenjalousie anzuordnende, mit Leiterschnüren einer Schnurleiter für die Lamellen zusammenwirkenden Wendevorrichtung
DE2726452A1 (de) * 1977-06-11 1979-05-23 Hunter Douglas Ind Bv Antrieb fuer eine lamellenjalousie
DE3037759A1 (de) * 1980-10-06 1982-11-04 Emil Schenker AG, 5012 Schönenwerd Rafflamellenstore
CH650311A5 (de) * 1981-05-19 1985-07-15 Baumann Rolladen Rafflamellenstore.
DE3313833A1 (de) * 1983-04-16 1984-10-18 Hüppe GmbH, 2900 Oldenburg Wendevorrichtung einer lamellenjalousie
DE8503040U1 (de) * 1985-02-05 1985-06-20 Hunter Douglas Industries B.V., Rotterdam Wendevorrichtung für eine Lamellenjalousie
DE69007992T2 (de) * 1989-01-25 1994-09-01 Nichibei Kk Auf-/Abtriebs- und Rotationsvorrichtung für die Lamellen von horizontalen Stores.
CA2213807C (en) * 1995-03-06 2003-08-12 Norbert Marocco Combined tilt and raise control for window coverings

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604939A (en) * 1950-03-09 1952-07-29 Rolladenfabrik A Griesser A G Venetian blind
US2758644A (en) * 1953-07-30 1956-08-14 Virlouvet Jacques Control system for slatted roller blinds

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2604939A (en) * 1950-03-09 1952-07-29 Rolladenfabrik A Griesser A G Venetian blind
US2758644A (en) * 1953-07-30 1956-08-14 Virlouvet Jacques Control system for slatted roller blinds

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327765A (en) * 1964-06-29 1967-06-27 Strahm Andre Venetian blinds
US3310099A (en) * 1965-07-19 1967-03-21 Hunter Electric venetian blind
US4088171A (en) * 1976-04-30 1978-05-09 Storen- Und Maschinenfabrik Emil Schenker Ag Venetian blind
US4334572A (en) * 1980-01-24 1982-06-15 Griesser Ag Venetian blind construction
US4487245A (en) * 1980-08-29 1984-12-11 Toso Kabushiki Kaisha Torque-adjusting device for use in a roller blind
US5123472A (en) * 1990-10-11 1992-06-23 Toso Company, Limited Apparatus for lifting and tilting slats in a venetian blind
EP0608042A2 (de) * 1993-01-21 1994-07-27 Newell Operating Company Kopfschiene für Minivorhang
EP0608042A3 (de) * 1993-01-21 1995-03-08 Newell Operating Co Kopfschiene für Minivorhang.
US6619365B1 (en) * 2002-03-07 2003-09-16 Industrial Technology Research Institute Plug-in transmission mechanism for a motor-driven blind
US20040231807A1 (en) * 2003-05-21 2004-11-25 Springs Window Fashions Lp Venetian blind ladder drum and method of assembling venetian blind
US6976522B2 (en) 2003-05-21 2005-12-20 Springs Window Fashions Lp Venetian blind ladder drum and method of assembling venetian blind
US20140360682A1 (en) * 2013-06-05 2014-12-11 Han-Sen Lee Single cordless control for window covering
US9078537B2 (en) * 2013-06-05 2015-07-14 Han-Sen Lee Single cordless control for window covering
CN103306594A (zh) * 2013-07-03 2013-09-18 立森（博罗）木器有限公司 一种隐形拉绳窗帘
CN103306594B (zh) * 2013-07-03 2016-04-20 立森（博罗）木器有限公司 一种隐形拉绳窗帘

Also Published As

Publication number Publication date
CH400817A (de) 1965-10-15
BE648122A (de) 1964-09-16
DE1509369A1 (de) 1969-04-03
NL6405456A (de) 1964-11-25
AT252536B (de) 1967-02-27

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