EP1842981A2 - Rollladen mit einem Führungselement - Google Patents

Rollladen mit einem Führungselement Download PDF

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Publication number
EP1842981A2
EP1842981A2 EP07104884A EP07104884A EP1842981A2 EP 1842981 A2 EP1842981 A2 EP 1842981A2 EP 07104884 A EP07104884 A EP 07104884A EP 07104884 A EP07104884 A EP 07104884A EP 1842981 A2 EP1842981 A2 EP 1842981A2
Authority
EP
European Patent Office
Prior art keywords
cassette
strip
roller
linkage
fabric
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Withdrawn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
EP07104884A
Other languages
English (en)
French (fr)
Other versions
EP1842981A3 (de
Inventor
Lorenzo Danieli
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.)
PROGETTOTENDA SpA
Original Assignee
PROGETTOTENDA SpA
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 PROGETTOTENDA SpA filed Critical PROGETTOTENDA SpA
Publication of EP1842981A2 publication Critical patent/EP1842981A2/de
Publication of EP1842981A3 publication Critical patent/EP1842981A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B43/00—Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like
    • A47B43/02—Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like made of cardboard or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B61/00—Wardrobes
    • A47B61/06—Travelling or trunk wardrobes also made of cardboard or the like, e.g. provided with garment-holders, ironing board, washing outfit, for picnics
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/20—Furniture panels or like furniture elements
    • A47B96/201—Edge features
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0685—Covers or housings for the rolled-up blind
    • E04F10/0688—Covers or housings for the rolled-up blind with the housing taking up the articulated arms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0692—Front bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0611—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind
    • E04F10/0618—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building with articulated arms supporting the movable end of the blind for deployment of the blind whereby the pivot axis of the articulation is perpendicular to the roller
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/02—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins
    • E04F10/06—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of flexible canopy materials, e.g. canvas ; Baldachins comprising a roller-blind with means for holding the end away from a building
    • E04F10/0666—Accessories
    • E04F10/0677—Accessories acting as centre bearing

Definitions

  • the present invention relates to a roller blind having the characteristics stated in the preamble to Claim 1, which is the principal claim.
  • the invention relates particularly, although not exclusively, to the specific technical field of roller blinds of the cassette type, in which the winding roller, the blind extension arms and any drive unit are housed in a cassette structure designed to be closed when the fabric is fully wound on to the winding roller, in the inoperative condition.
  • the cassette is made with a longitudinal aperture through which the fabric is unwound and extended by means of the arms.
  • the blind fabric is also made with a terminal edge fastened to a front strip positioned parallel to the winding roller, in such a way that, when the fabric is unwound, the forced opening of the arms for extension (by means of springs or similar means) pushes the front strip away from the roller, thus extending the fabric through the aforesaid aperture.
  • the strip is brought towards the cassette until it is made to close the aperture, when the fabric has been fully wound on to the roller.
  • the fabric can have extensions of a certain length in the longitudinal direction, making it necessary to provide cassettes and front strips which are of corresponding length.
  • a limitation encountered in these solutions is the fact that the strip tends to bend as a result of the longitudinal extension, showing flexural deformation, the maximum deflections occurring in the middle of the strip and interfering with its engagement with the cassette, since they prevent the longitudinal edges of the strip from being correctly superimposed on the facing edges of the aperture in corresponding positions, owing to the flexion of the front strip.
  • the greater flexural deformation caused in the strip by comparison with that of the cassette is therefore such as to compromise the matching of the facing edges when the parts are engaged with each other for closing.
  • the fundamental problem of the present invention is that of providing a roller blind whose structural and functional design enables the limitations of the aforementioned prior art to be overcome.
  • the number 1 indicates the whole of a sun blind of the roller type made according to the present invention. It comprises a cassette 2 in which a winding roller 3 is housed and rotatably supported, the roller being powered by means of a drive unit (not shown) and designed to receive a fabric 4 wound on to it.
  • a drive unit not shown
  • one or more pairs of extendable arms 5 are also provided, these arms being shown purely schematically in Figure 1 and each having one end hinged inside the cassette and an opposite second end hinged to a front strip 6 extending parallel to the longitudinal direction of extension of the cassette.
  • Each arm 5 is provided with two or more portions hinged together and pushed towards the extended position by springs or other similar return means of a conventional type (not shown), such as those typically provided in blinds with extendable arms.
  • an aperture 7 delimited by a pair of opposed edges 7a, 7b extending in the longitudinal direction of extension of the cassette, the said aperture allowing the passage of the fabric and the arms during the unwinding and winding of the said fabric.
  • the front strip 6 has a pair of longitudinal edges 6a, 6b running longitudinally and opposite each other.
  • the strip 6 is also fixed to one edge of the free end 4a of the fabric, which is transversely opposed to the roller 3, and can also be moved so that it closes the aperture 7 of the cassette when the fabric is fully wound on to the winding roller 3, in the inoperative condition.
  • the blind 1 comprises a guide element, indicated as a whole by the number 10, fitted in the cassette, in such a position that it interferes with the strip 6 in the approach of the latter to the cassette as a result of the winding of the fabric on to the roller, as is clearly indicated in the remainder of the description.
  • the guide element comprises, in particular, a linkage 11, supported rotatably on the stationary structure of the cassette, in such a way that it can oscillate to a limited degree about an axis of oscillation X. More specifically, the linkage 11 is pivoted about the axis X in the form of a first-class lever, having a first and a second end, indicated by 11a and 11b respectively, positioned on opposite sides of the axis X.
  • the linkage 11 is formed from a pair of plate-like bodies 12a, 12b, parallel and spaced apart, which are fixed together and supported oscillatably on the cassette 2 about a pin allowing free oscillation 12c coaxial with the axis X.
  • a rotatably supported idle roller 12d At the first end 11a, between the bodies 12a, 12b, there is a rotatably supported idle roller 12d, whose axis of rotation Y parallel to the axis of oscillation X, and whose function will be explained below.
  • the linkage 11 comprises, in each of the bodies 12a, 12b, a first and a second appendage 13a, 13b, which can bear, respectively, on a first and a second bearing surface 14a, 14b of the cassette, thus forming elements limiting the oscillation of the linkage about the axis of oscillation X.
  • the linkage 11 as shown in Figure 2, can oscillate to a limited degree between two angular positions, of which one is shown in solid lines and the other in broken lines in the aforesaid figure.
  • the front strip 6 is fixed to a plate element 15, fixed to it in a position facing the guide element 10 and capable of interacting with the latter.
  • a plate element 15 In the plate element 15 there is identified a first base portion 15a, used for fixing to the strip, by means of a screw 16 for example, and a second portion 15b, extending substantially at a right angle to the first portion towards the guide element.
  • the internal area connecting the two portions faces the guide element and is shaped so as to interact by mutual contact with the roller 12d, in such a way that the linkage is made to oscillate by the plate, as a result of their mutual interference, and the plate, together with the strip, is in turn supported by the linkage during the oscillatory travel about the axis X.
  • the linkage performs its function of supporting and guiding the strip, by projecting in the inoperative condition (corresponding to the linkage position shown in broken lines in the figure) to facilitate the engagement with the strip, but ceasing to project, as a result of its limited degree of oscillation, and thus remaining housed inside the cassette, in the closed position of the strip (corresponding to the linkage position shown in solid lines in the figure).
  • the guide element is preferably made to be positioned in the middle of the longitudinal extension of the strip ( Figure 1), where the deflection due to flexural deformation is maximal, although clearly one or more such elements can be placed in different positions along the extension of the strip.
  • the deformation of the strip is opposed during the winding of the strip, the front strip being supported in its engagement with the cassette so as to enable the facing edges of the strip and the cassette to be correctly matched until the cassette is fully closed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP07104884A 2006-04-05 2007-03-26 Rollladen mit einem Führungselement Withdrawn EP1842981A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPD20060127 ITPD20060127A1 (it) 2006-04-05 2006-04-05 Tenda avvolgibile

Publications (2)

Publication Number Publication Date
EP1842981A2 true EP1842981A2 (de) 2007-10-10
EP1842981A3 EP1842981A3 (de) 2011-01-19

Family

ID=38198380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07104884A Withdrawn EP1842981A3 (de) 2006-04-05 2007-03-26 Rollladen mit einem Führungselement

Country Status (2)

Country Link
EP (1) EP1842981A3 (de)
IT (1) ITPD20060127A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961835A1 (fr) * 2010-06-25 2011-12-30 Matest Sas Store pare-soleil
IT202200006236A1 (it) * 2022-03-30 2023-09-30 Gibus Spa Tenda a bracci

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105520A1 (de) * 1991-02-22 1992-09-03 Markisen Spettmann Gmbh Markise
EP0665346A1 (de) * 1994-02-01 1995-08-02 WEINOR Dieter Weiermann GmbH & Co. Gelenkarmmarkise

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105520A1 (de) * 1991-02-22 1992-09-03 Markisen Spettmann Gmbh Markise
EP0665346A1 (de) * 1994-02-01 1995-08-02 WEINOR Dieter Weiermann GmbH & Co. Gelenkarmmarkise

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2961835A1 (fr) * 2010-06-25 2011-12-30 Matest Sas Store pare-soleil
IT202200006236A1 (it) * 2022-03-30 2023-09-30 Gibus Spa Tenda a bracci

Also Published As

Publication number Publication date
EP1842981A3 (de) 2011-01-19
ITPD20060127A1 (it) 2007-10-06

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