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EP0674062A1 - Mécanisme pour store - Google Patents

Mécanisme pour store Download PDF

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Publication number
EP0674062A1
EP0674062A1 EP94306551A EP94306551A EP0674062A1 EP 0674062 A1 EP0674062 A1 EP 0674062A1 EP 94306551 A EP94306551 A EP 94306551A EP 94306551 A EP94306551 A EP 94306551A EP 0674062 A1 EP0674062 A1 EP 0674062A1
Authority
EP
European Patent Office
Prior art keywords
arm
awning
pivotal axis
pivotal
movement
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.)
Granted
Application number
EP94306551A
Other languages
German (de)
English (en)
Other versions
EP0674062B1 (fr
Inventor
Brian Wanklyn
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.)
VENTOLITE nsb Ltd
Original Assignee
VENTOLITE nsb 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 VENTOLITE nsb Ltd filed Critical VENTOLITE nsb Ltd
Publication of EP0674062A1 publication Critical patent/EP0674062A1/fr
Application granted granted Critical
Publication of EP0674062B1 publication Critical patent/EP0674062B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E04F10/0637—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 mechanisms for adjusting the inclination of the blind
    • E04F10/064—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 mechanisms for adjusting the inclination of the blind whereby the mechanism changes the inclination of the blind during unrolling
    • 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

Definitions

  • This invention relates to extendable and retractable awnings of the type commonly fitted above doors and windows.
  • awnings conventionally consist of a fabric canopy and a supporting structure for the canopy.
  • the supporting structure usually comprises an elongated chassis which in use is fixed in a horizontal position to the wall of the building or other structure on which the awning is to be installed.
  • the chassis is associated with a roller for storing the awning fabric, a front bar to which the leading edge of the fabric is attached, and articulated arms connecting the chassis to the front bar so that the front bar can be displaced away from or towards the wall, thus extending or retracting the awning, respectively.
  • no chassis is provided and the arms are simply mounted on separate horizontally-spaced end brackets.
  • arms are generally articulated in some cases other types of arms (e.g. rigid arms) are used. Where a chassis is included this may simply be an elongated metal bar to which the arms are clamped or alternatively may be a shaped extrusion (usually of aluminium) which also forms part of a housing for the fabric.
  • a chassis this may simply be an elongated metal bar to which the arms are clamped or alternatively may be a shaped extrusion (usually of aluminium) which also forms part of a housing for the fabric.
  • a winding mechanism (which may be motorized or manually operated) is provided to open and close the awning.
  • awnings In the open position, such awnings are always arranged to slope downwardly away from the wall.
  • One reason for this is that it prevents rainwater from accumulating on the awning fabric.
  • the arms are often spring-loaded towards the open position.
  • One type of conventional retractable awning is of the cassette type.
  • the whole awning mechanism including the fabric
  • the whole awning mechanism is housed in an elongated rectangular box or cassette which is fitted horizontally above the door or window which the awning is to shield.
  • the front face of the box forms the front bar mentioned above to which the leading edge of the awning fabric is attached.
  • the front face forms a cover which closes the box, and the awning is completely enclosed within the cassette.
  • the front face of the cassette is displaced outwardly, carrying the leading edge of the fabric with it and thus causing the awning fabric to unroll.
  • Another type of conventional awning known as the blind box type, is similar except that instead of being housed in a cassette the awning mechanism and awning fabric are fitted into a horizontally-extending recess formed in the wall above the door or window to be shielded.
  • the recess is 10 inches x 10 inches in cross-section.
  • the front bar, to which the leading edge of the fabric is attached, is in this case shaped to form a cover for the recess when the awning is in the retracted position.
  • the front bar forming a cover for the cassette or recess it is necessary for the front bar forming a cover for the cassette or recess to move directly outwards for a short distance so as to clear the cassette or recess, before moving to a lower position to provide the desired angle of slope of the fabric when the awning is open.
  • the mechanism must be locked in this lower position to prevent the awning from being blown up by gusts of wind.
  • the initial outwards movement of the front bar is horizontal, but this would not be the case if for example the awning is mounted on a sloping structure.
  • the awning In the case of existing awning mechanisms, the awning is simply allowed to fall under gravity from the initial horizontal position to the final sloping position. This clumsy movement is noisy and puts an undesirable strain on the mechanism and could lead to early component failure, particularly as the size and therefore the strength of the components is limited by the space available to them. Locking of the mechanism in the lower position is generally ensured by a locking pin.
  • this invention provides an awning mechanism in which the transition between the initial movement directly out of the recess or cassette to the desired angle of slope is accomplished smoothly and in a controlled manner.
  • an awning mechanism comprising mounting means to be fixed to a wall or other structure to permit mounting of at least one supporting arm, the or each arm being pivotally attached to the mounting means so that it can move from a closed position in which it is parallel to the wall to an open position in which it extends outwardly and downwardly from the wall, the or each arm being fixed to the mounting means by a first joint which allows both outward pivotal movement about a first pivotal axis and downward rotational movement of the arm, but which does not allow the first pivotal axis to move horizontally relative to the mounting means, and a second joint spaced from the first joint in the vertical direction which allows outward pivotal movement of the arm about a second pivotal axis and downward rotational movement of the arm, the second pivotal axis being horizontally displacable relative to the first pivotal axis.
  • the second joint acts as a control joint and positively controls the downward rotational movement of the arm as it is pivoted outwards.
  • the horizontal relationship between the first and second pivotal axes is preferably adjustable (e.g. by providing for horizontal displacement of the second pivotal axes) and the selected relative position determines the angle of slope of the arm in the open position.
  • the mounting means is provided on an elongate chassis and preferably includes at any point along the length of the chassis where an arm is required a pair of horizontal bars of circular cross-section spaced apart in the vertical direction.
  • Each pair of horizontal bars is associated with one of the articulated arms.
  • the first joint which comprises a first or lower sleeve which can rotate around the bar but which is fixed in the horizontal direction. This permits the downward rotation of the arm whilst fixing the arm relative to the chassis in the horizontal direction.
  • the lower horizontal bar may be replaced by a simple pivot.
  • the articulated arm is attached to the first or lower sleeve so that it can swing outwardly about a first pivotal axis.
  • the upper circular cross-section bar carries the second joint which comprises a second or upper sleeve and the upper sleeve can both rotate around the bar and slide along it.
  • the upper sleeve is connected to the articulated am proper by a control arm rigid with the articulated arm in the plane in which the arm moves about the first pivotal axis so that it can swing outwards relative to the upper sleeve about a second pivotal axis.
  • the relative horizontal positions of the two sleeves can be adjusted by adjusting the effective length of the control arm, (e.g. by the installer) thus enabling the slope adopted by the articulated arm, and thus the slope of the awning fabric, to be selected.
  • the control arm is as rigid as possible with the articulated arm in the direction of pivotal movement of the articulated arm, and rigid cheek plates or other means may be provided on the inner end of the articulated arm to restrain any tendency of the control arm to move laterally.
  • the pivotal axis of the control arm should be capable of slight movement relative to the pivotal axis of the articulated arm in a plane transverse to the plane of movement of the articulated arm about the first pivotal axis to allow the mechanism to accommodate without excessive stress the complexities of the swinging motion.
  • Each articulated am preferably consists of elongated inner and outer parts connected by a hinge.
  • the inner part of each articulated arm is connected to the chassis or other means of mounting the arm to a wall or other structure as described above and to the outer part of each articulated arm by a hinge.
  • the outer part of each articulated arm is preferably pivotally connected a front bar to which the front surface of the blind fabric is attached.
  • the articulated arms are preferably spring-biased towards the open position.
  • the chassis or other mountingmeans for the arms is preferably associated with a roller around which the fabric is stored when the awning is in the retracted position, and a housing for the roller.
  • a chassis is provided this is preferably formed as an elongate aluminium extrusion having a part-cylindrical hollow portion which acts as a housing for the fabric roller.
  • Fig.1 shows a cassette-type awning, in which the awning fabric and the supporting mechanism is fully enclosed within a cassette mounted in a horizontal position on a wall of a building above a door or window to be shielded.
  • the cassette consists of a chassis 1 having wall mounting brackets 17 and a front bar 2 which is shaped so as to close the front of the cassette when the awning is fully retracted.
  • the front bar 2 is attached to the chassis by a pair of spaced articulated arms 3.
  • Each arm 3 consists of an inner portion 4 and an outer portion 5 connected at a hinge 8.
  • the inner end of the inner arm portion 4 is attached to the chassis by a joint means shown generally at 6.
  • the outer end of each of the outer arms 5 is pivotally attached to the front bar 2.
  • the arms house springs (not shown) which urge them in conventional manner towards the open position.
  • the front bar 2 carrying the leading edge of the fabric 7 begins to move in a horizontal direction out from the chassis 1 and, as it clears the chassis, gradually moves downwardly as it moves outwardly relative to the chassis until, when the awning is fully extended, the awning fabric has achieved the desired angle of slope.
  • Fig.2 shows the joint means 6 between the inner part 4 of the arm 3 and the chassis 1 in more detail.
  • the chassis is provided with upper and lower horizontal bars of circular cross-section, 9 and 10 respectively.
  • First and second sleeves 12 and 11 respectively are fitted to bars 10 and 9.
  • First or lower sleeve 12 is rotatable around bar 10 but is fixed so that it cannot move relative to the bar 10 in the horizontal direction.
  • the inner arm portion 4 is attached to sleeve 12 by a pivot having a pivotal axis 13 which allows the arm portion 4 to swing outwardly from the chassis 1.
  • a control arm 14 is fitted to the top surface of inner arm portion 4, and its inner end is mounted at pivot axis 15 to a second or upper sleeve 11, to allow the outward swinging movement of the arm portion 4.
  • the inner end of control arm 14 is divided into spaced parallel sections 14a and 14b between which a lug on upper sleeve 11 is pivotally attached.
  • the joint between the control arm and the upper sleeve has to be strong enough to accommodate the large tensile forces between the control arm and the sleeve and to ensure that the two components remain aligned even at maximum displacement of the articulated arm, even when acting as a strut rather than a tie rod as in upward wind loading.
  • Second or upper sleeve 11 is mounted on bar 9 so that it can both rotate around the bar and slide along it in a horizontal direction.
  • Control arm 14 can be displaced longitudinally relative to arm portion 4 thus altering its effective length by unfastening and re-tightening adjustment bolts 16.
  • inner arm portion 4 When the awning is closed, inner arm portion 4 is horizontal and lies parallel to and alongside the chassis 1. Outer arm portion 5 is folded back against inner arm portion 4 and the front bar 2 fits against the front edge of chassis 1, thereby forming with it a closed cassette in which the entire mechanism, including the fabric, is stored.
  • the effective length of the control arm 14 is adjusted so that pivotal axis 15 of control arm 14 is horizontally displaced from the pivotal axis 13 by the appropriate distance.
  • the control arm 14 forces the arm portion 4 to swing downwardly as shown in Fig.2.
  • An angle of drop adjustable between, say, 0° and 55° may be easily provided.
  • control arm 14 should not be able to move relative to articulated arm portion 4 in the plane in which the arm portion 4 pivot about axis 13.
  • rigid cheek plates 18 are fixed to the joint end of the arm portion 4 and abut opposite sides of the control arm 14.
  • the pivot axis 15 should be able to move slightly axially relative to pivot axis 13. For this reason control arm 14 is made slightly springy and its end adjacent the pivot axis 15 is not restrained in the direction of that axis.
  • Fig.3 shows the inner arm portion 4 in the closed position in which it lies parallel to and alongside the chassis 1.
  • the upper sleeve 11 is at its maximum horizontal displacement from the lower sleeve 12 in this position.
  • the sleeve 11 will move closer to the fixed sleeve 12 in the horizontal direction, as is shown in Fig.4.
  • Fig.4 shows, in plan, the sliding movement of the upper sleeve 11 along the associated bar 9 between the closed position in which the control arm 14 and the arm portion 4 lie parallel to the chassis 1 and the open position (shown by reference numerals 15', 4' and 14') where the arm portion 4 extends outwards generally perpendicular to the chassis 1.
  • control arm 14 is not divided at its upper end. Instead, two spaced lugs 17a, 17b are provided on upper sleeve 11 between which the inner end of control arm 14 is pivotally mounted.
  • the awning fabric adopts the desired angle of slope gradually as the awning is opened and the angle of slope is closely controlled by the changing angle of the inner arm portion as is swings from the closed to the open position.
  • This mechanism is substantially stronger and neater in operation than conventional mechanisms in which the awning is allowed to drop to the sloped position under gravity.
  • no separate locking mechanism is required to prevent the open awning from being blown upwards by gusts of wind. Any vertical motion (either upwards or downwards) by the awning fabric and hence the supporting arms is always constrained by the position of those arms in a horizontal plane. The arms could only be displaced upwards if they were to close against the action of their springs by means of which they are biased towards the open position. However, if subjected to very high wind loads the awning could potentially close in these circumstances thereby reducing the likelihood of its being damaged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Awnings And Sunshades (AREA)
  • Tents Or Canopies (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
EP94306551A 1994-03-22 1994-09-06 Mécanisme pour store Expired - Lifetime EP0674062B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9405637A GB9405637D0 (en) 1994-03-22 1994-03-22 Awning mechanism
GB9405637 1994-03-22

Publications (2)

Publication Number Publication Date
EP0674062A1 true EP0674062A1 (fr) 1995-09-27
EP0674062B1 EP0674062B1 (fr) 1998-09-23

Family

ID=10752288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94306551A Expired - Lifetime EP0674062B1 (fr) 1994-03-22 1994-09-06 Mécanisme pour store

Country Status (4)

Country Link
EP (1) EP0674062B1 (fr)
AT (1) ATE171501T1 (fr)
DE (1) DE69413514T2 (fr)
GB (1) GB9405637D0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2877369A1 (fr) * 2004-10-29 2006-05-05 Matest Soc Par Actions Simplif Dispositif pour monter un bras sur un support et assemblage de store pourvu d'un tel dispositf
EP1985776A3 (fr) * 2007-04-24 2013-09-18 Producciones Mitjavila, S.A. Mécanismes de réglage pour bâches
CN116411685A (zh) * 2023-04-07 2023-07-11 浙江湖州森富机电有限责任公司 一种顶棚天幕帘电机控制系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH542337A (de) * 1972-08-22 1973-09-30 Frego Ottenbach Ag Aufrollbare Markise
WO1988007115A1 (fr) * 1987-03-13 1988-09-22 Victor Lohausen Store a profil central de fixation
WO1989008175A1 (fr) * 1988-03-01 1989-09-08 Viktor Lohausen Limiteur de basculement pour stores en toile
DE9003058U1 (de) * 1990-03-13 1990-05-17 Inventa Markisen Dr. Krüger KG, 6349 Sinn Armlager für eine Gelenkmarkise

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH542337A (de) * 1972-08-22 1973-09-30 Frego Ottenbach Ag Aufrollbare Markise
WO1988007115A1 (fr) * 1987-03-13 1988-09-22 Victor Lohausen Store a profil central de fixation
WO1989008175A1 (fr) * 1988-03-01 1989-09-08 Viktor Lohausen Limiteur de basculement pour stores en toile
DE9003058U1 (de) * 1990-03-13 1990-05-17 Inventa Markisen Dr. Krüger KG, 6349 Sinn Armlager für eine Gelenkmarkise

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2877369A1 (fr) * 2004-10-29 2006-05-05 Matest Soc Par Actions Simplif Dispositif pour monter un bras sur un support et assemblage de store pourvu d'un tel dispositf
EP1985776A3 (fr) * 2007-04-24 2013-09-18 Producciones Mitjavila, S.A. Mécanismes de réglage pour bâches
CN116411685A (zh) * 2023-04-07 2023-07-11 浙江湖州森富机电有限责任公司 一种顶棚天幕帘电机控制系统
CN116411685B (zh) * 2023-04-07 2023-08-29 浙江湖州森富机电有限责任公司 一种顶棚天幕帘电机控制系统

Also Published As

Publication number Publication date
DE69413514D1 (de) 1998-10-29
EP0674062B1 (fr) 1998-09-23
GB9405637D0 (en) 1994-05-11
ATE171501T1 (de) 1998-10-15
DE69413514T2 (de) 1999-05-27

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