US3324929A - Roller shutter - Google Patents

Roller shutter Download PDF

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Publication number
US3324929A
US3324929A US548636A US54863666A US3324929A US 3324929 A US3324929 A US 3324929A US 548636 A US548636 A US 548636A US 54863666 A US54863666 A US 54863666A US 3324929 A US3324929 A US 3324929A
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US
United States
Prior art keywords
slat
slats
convex surface
reinforced
roller shutter
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
US548636A
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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
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 Griesser AG filed Critical Griesser AG
Application granted granted Critical
Publication of US3324929A publication Critical patent/US3324929A/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
    • E06B9/34—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable roller-type; Roller shutters with adjustable lamellae

Definitions

  • a roller shutter having carrier band means provided with the usual slats and at spaced intervals between such normal slats there are inserted reinforced slats to enable the shutter to withstand greater pressures.
  • the reinforced slat is provided with hollow profiles located at each end in which stiffening insert means are inserted with pins to cooperate with the carrier tapes of the shutter.
  • the present invention has reference to an improved roller shutter of the type provided with pivotable slats secured upon carrier bands or tapes at an equal spacing from one another and windable upon a roller unit.
  • roller shutters of the aforementioned type are known to the art. Since the slats are manufactured from thin material they tend to easily bend when subjected to pronounced wind pressure. This has the disadvantage that the closed roller shutter leaks and can also lead to a permanent change in shape of the slats. Indeed, redress of these disadvantages can be had by providing stronger slats, yet in so doing manufacturing costs increase, additionally the wind-up drum or roller must be larger, and the operation of the unit becomes more difficult.
  • Another important object of the present invention is the provision of an improved roller shutter which is highly reliable in operation, capable of withstanding pronounced external loads without deforming thereby retaining a leakproof construction, as well as a shutter which is economical to manufacture.
  • Still a further important object of the subject invention is the provision of an improved construction of reinforced roller shutter slat capable of application in conjunction with normal slats and providing for the entire roller shutter assembly advantages respecting resistance to external loads and deformation.
  • an essential feature of the present invention resides in the provision of individual slats which are reinforced in order to accommodate increased demands, such reinforced slats being arranged in each instance for pivotable movement at the carrier bands after a number of so-called normal slats arranged following one another.
  • the reinforced slats of the present invention can exhibit a hollow section or profile.
  • the hollow profile comp-rises a frontal face which is outwardly convex and a rearward face convex in the same direction, as well as side walls which connect the same together.
  • the ends bounding at the carrier bands and the portion bordering at the openings for the drawstrings or tension bandsof the reinforced slats can be provided with inserts engaging in the aforesaid section or profile. These inserts carry pins for example allowing for the rotatable mounting of the slats at the carrier bands and tension bands.
  • the reinforced slats possess the same length and width as Well as a similar external profile as the normal slats.
  • FIGURE 1 diagrammatically illustrates a portion of the inventive roller shutter provided, by way of illustration, with five slats;
  • FIGURE 2 is a perspective view of a reinforced slat employed with the roller shutter of FIGURE 1.
  • roller shutter is shown, by way of example, as employing five series arranged slats of different construction and manufactured of sheet metal or synthetic material eg plastic, although it will be appreciated a different or larger number of slats, as necessary, can be used in the roller shutter. It will be seen that following the so-called normal slats 1, 2 is a reinforced slat 3 and then again a normal slat 4 followed by a reinforced slat 3.
  • each body member 30 of the normal slats 1, 2 and 4 is advantageously provided at its upper end or edge with a bulbous or curled portion 32 and at its lower end or edge with an upwardly flexed rim or lip against which bears the aforesaid bulbous portion 32 of the next lower slat.
  • a carrier band or tape 5 is provided at each end of the slats 1-4, for convenience in illustration only one such carrier band is shown at the left of the roller shutter of FIGURE 1.
  • Each carrier band 5 is provided with support means 6, 7, 8 and 9, for distance configured as U-shaned support bands, receiving pins 10, 11, 12 and 13 carried by the slats 1-4 respectively.
  • the slats 1-4 are provided with a draw tape 130, which is connected to the curled edges 32 of the normal slats and the edges 35 of the reinforced slats by any known means (not shown) such as illustrated at 10, FIGURE 1, in the United States patent to F. Griesser, No.
  • the slats may be provided with openings 14, 15, 16 and 17 through which there is applied a supporting band 18 which rotatably engages via fastening elements 34 connected with the associated tension band 18 inwardly curled flaps or tabs 19, 20, 21 and 22 arranged eccentric to the center of the associated slat. It should be appreciated that if the drawband or tension band 18 is pulled the slats 1-4 are rocked about the corresponding pins 10-13 respectively into desired position.
  • the winding-up of the roller shutter unit occurs in known manner by means of the carrier bands 5 windable upon a suitable non-illustrated roller or drum, such as shown at FIGURES 2 and 3 of the aforementioned patent to Griesser.
  • reinforced slat 3 corresponds completely in its convex external side or face 23 to a normal slat i, 2 or 4, see FIGURE 2.
  • reinforced slat 3 incorporates a bulbous portion 35 at its upper edge and an upwardly flexed rim or lip 36 at its lower edge.
  • the body portion 23a of slat 3, in particular the outwardly convex forward face 23 of such body portion together with the convex rearward face or portion 24 and the side walls 24a and 24b form a hollow section or profile 25a.
  • Such construction results in an improvement of the longitudinal stiffness of the slat 4, so that it can also withstand stronger 3 wind pressure.
  • a further increase of the rigidity or stiffness of the roller shutter is achieved by the provision of inserts 25, 26, 27 which are pushed into the hollow profile or section 2511 of the reinforced slat 3 and which carry the means for securing and pivotably mounting the slats.
  • insert 26 carries pin means 12 for the carrier band 5 and inserts 26, 27 the pin means or tab 21 for the supporting band.
  • a roller shutter comprising carrier band means, slat means pivotally connected at substantially equal spacing from one another to said carrier band means, said slat means incorporating a plurality of normal slat members and a plurality of individual reinforced slat members, each individual reinforced slat member being pivotably connected to said carrier band means at spaced intervals with at least one normal slat filling each spaced interval,
  • each of said reinforced slats comprising a body member with a first convex surface defining front and rear faces of the slat; a second surface convex in the same direction as said first and spaced from the rear surface of said first convex surface; side wall means connecting said second convex surface to the rear of said first convex surface, whereby said second convex surface, side walls, and rear face of said first convex surface define at least two hollow profiles, located one at each end; stiffening insert means carried within said profiles and pin means carried by said inserts, for cooperating with said carrier tapes of the shutter.
  • said reinforced slat has an opening in said slat for passage therethrough of a supporting band; and a hollow profile on each side of said opening, stiffening inserts therein, and pin means associated with each insert, for cooperating with said supporting band.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
US548636A 1963-04-19 1966-05-09 Roller shutter Expired - Lifetime US3324929A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH494863A CH407505A (de) 1963-04-19 1963-04-19 Rolladen

Publications (1)

Publication Number Publication Date
US3324929A true US3324929A (en) 1967-06-13

Family

ID=4285305

Family Applications (1)

Application Number Title Priority Date Filing Date
US548636A Expired - Lifetime US3324929A (en) 1963-04-19 1966-05-09 Roller shutter

Country Status (5)

Country Link
US (1) US3324929A (de)
BE (1) BE646232A (de)
CH (1) CH407505A (de)
DE (1) DE1952205U (de)
NL (1) NL6404226A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429355A (en) * 1965-12-03 1969-02-25 Griesser Ag Blinds
US4236566A (en) * 1977-11-24 1980-12-02 Hunter Douglas International N.V. External venetian blind
US6371189B1 (en) * 2000-07-21 2002-04-16 Kol Chen Ltd. Roller shutter
US20080202709A1 (en) * 2003-04-09 2008-08-28 Hunter Douglas, Inc. Single cord drive for coverings for architectural openings
US20100212842A1 (en) * 2009-02-20 2010-08-26 Peter Bichler Roller blind and member therefore
US20140262071A1 (en) * 2013-03-15 2014-09-18 Hunter Douglas Inc. Roll-up coverings for architectural openings and related methods, systems and devices
US11156031B2 (en) 2014-09-10 2021-10-26 Hunter Douglas, Inc. Roll-up coverings for architectural openings and related methods, systems and devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US546858A (en) * 1895-09-24 Rolling fireproof blind or partition
US2391904A (en) * 1944-11-22 1946-01-01 Bela B Junkunc Venetian blind rail and tape fastener
US2840156A (en) * 1955-11-11 1958-06-24 Griesser Ag Venetian blind
US3110036A (en) * 1960-02-29 1963-11-12 Valguard Company Inc Flush tank assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US546858A (en) * 1895-09-24 Rolling fireproof blind or partition
US2391904A (en) * 1944-11-22 1946-01-01 Bela B Junkunc Venetian blind rail and tape fastener
US2840156A (en) * 1955-11-11 1958-06-24 Griesser Ag Venetian blind
US3110036A (en) * 1960-02-29 1963-11-12 Valguard Company Inc Flush tank assembly

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429355A (en) * 1965-12-03 1969-02-25 Griesser Ag Blinds
US4236566A (en) * 1977-11-24 1980-12-02 Hunter Douglas International N.V. External venetian blind
US6371189B1 (en) * 2000-07-21 2002-04-16 Kol Chen Ltd. Roller shutter
US20080202709A1 (en) * 2003-04-09 2008-08-28 Hunter Douglas, Inc. Single cord drive for coverings for architectural openings
US7836937B2 (en) * 2003-04-09 2010-11-23 Hunter Douglas, Inc. Single cord drive for coverings for architectural openings
US20110031343A1 (en) * 2003-04-09 2011-02-10 Hunter Douglas, Inc. Single cord drive for coverings for architectural openings
US8418742B2 (en) 2003-04-09 2013-04-16 Hunter Douglas, Inc. Single cord drive for coverings for architectural openings
US20100212842A1 (en) * 2009-02-20 2010-08-26 Peter Bichler Roller blind and member therefore
US20140262071A1 (en) * 2013-03-15 2014-09-18 Hunter Douglas Inc. Roll-up coverings for architectural openings and related methods, systems and devices
US9359813B2 (en) * 2013-03-15 2016-06-07 Hunter Douglas Inc. Roll-up coverings for architectural openings and related methods, systems and devices
US10465442B2 (en) 2013-03-15 2019-11-05 Hunter Douglas Inc. Roll-up coverings for architectural openings and related methods, systems and devices
US11156031B2 (en) 2014-09-10 2021-10-26 Hunter Douglas, Inc. Roll-up coverings for architectural openings and related methods, systems and devices

Also Published As

Publication number Publication date
DE1952205U (de) 1966-12-22
BE646232A (de) 1964-07-31
NL6404226A (de) 1964-10-20
CH407505A (de) 1966-02-15

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