EP3438405B1 - Hubtor - Google Patents

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Publication number
EP3438405B1
EP3438405B1 EP18000624.9A EP18000624A EP3438405B1 EP 3438405 B1 EP3438405 B1 EP 3438405B1 EP 18000624 A EP18000624 A EP 18000624A EP 3438405 B1 EP3438405 B1 EP 3438405B1
Authority
EP
European Patent Office
Prior art keywords
curtain
uprights
upright
bottom wall
groove
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.)
Active
Application number
EP18000624.9A
Other languages
English (en)
French (fr)
Other versions
EP3438405A1 (de
Inventor
Danilo Benotto
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.)
BProjet Srl
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BProjet Srl
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Publication date
Application filed by BProjet Srl filed Critical BProjet Srl
Publication of EP3438405A1 publication Critical patent/EP3438405A1/de
Application granted granted Critical
Publication of EP3438405B1 publication Critical patent/EP3438405B1/de
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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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B2009/588—Sealings for guides

Definitions

  • the present invention generally refers to closing devices, particularly for industrial use, such as quick vertical sliding doors, in which the opening and closing steps occur at a relatively high speed.
  • the invention relates to a quick closing device of the so-called "fold up” type.
  • closures comprise a flexible curtain slidably mounted with respect to an opening defined by a portal structure, such that the curtain can assume a lowered configuration or a raised configuration.
  • the portal structure includes an upper cross member and two vertical uprights in which guide grooves are formed, which are engaged by the side edges of the curtain and by the opposite ends of transverse bars for stiffening the curtain, which delimit a series of panels of it.
  • a plurality of strips or belts are associated with one face of the curtain, which extend in the vertical direction, having their upper end fixed to a motorized winding shaft arranged close to the upper cross member of the portal structure, while the lower end is fixed in a lower region of the curtain, typically to the lowermost stiffening bar of the curtain.
  • the curtain is provided with a series of holding members in the form of belt loops or the like, in which the various strips are slidably engaged.
  • the winding shaft is driven in rotation so that the strips of the curtain are wound on it in order to drag the curtain upwards.
  • the various panels of the curtain close as an "accordion", so as to form a series of loops on the face of the curtain opposite to the strips.
  • a quick closing fold up device of the aforesaid type is known from FR-2 785 639 A1 on which the preamble of appended claim 1 is based.
  • the width of the grooves of the uprights of the fastening devices of the "fold up" type is constant between the upper end, adjacent to the cross member of the portal structure, and the lower end, and they have therefore a rectangular shape the width of which corresponds at least to the thickness of the curtain with the relevant loops in its completely raised configuration.
  • the main object of the present invention is to solve the aforementioned drawbacks of the known quick closing "fold up” devices.
  • each upright has a substantially V-shaped bottom wall, the vertex of which constitutes a rectilinear seat for the sliding movement of the opposite ends of the transverse stiffening members associated with the curtain.
  • the curtain extends on a fixed vertical plane passing through the parallel lines of the vertices of the two uprights of the structure.
  • the shape of the groove of each upright is progressively tapered downwards, so that the width thereof grows towards said cross member for connecting the uprights.
  • the clearance between the curtain and the parts of the uprights delimiting the transverse gap defined by them is substantially reduced or canceled, so as to avoid any transverse movement of the curtain with respect to the grooves of the uprights, and to further reduce a possible deterioration of the side edges of the curtain.
  • the advantage is obtained that the uprights, in their base portion close to the ground, have a narrow section, by virtue of which a space wider than that existing in the portal structures provided with traditional uprights is available near the ground, for the operation of machines and people.
  • the uprights are made in a single piece of metal sheet folded so as to form said substantially V-shaped bottom wall, as well as a pair of containment side walls for holding the opposite side edges of the curtain and the opposite ends of the transverse stiffening members.
  • the uprights of the portal structure can be made in a simple manner by a single piece of metal sheet intended to be folded and, in the case their shape is tapered, with the width of the groove increasing towards the top of the uprights, less sheet metal needs to be used than that required by their most common shape having a constant cross-section with a rectangular groove, whereby manufacturing costs of the uprights can be reduced, as well as those of the whole closing device.
  • a linear brush sealing member is fastened to at least one containment side wall of each upright, which member faces the curtain and is directed transversely to the general plane of the curtain.
  • the linear brush sealing members fastened to the edges of the uprights of the portal structure allow a possible clearance between the sheet and the grooves of the uprights of the portal structure to be further reduced, as well as passing of air between the upstream and downstream environments with respect to the curtain to be considerably limited, helping to make the closure device of the invention substantially airtight in the lowered configuration of the curtain.
  • the width of the curtain is greater than the length of said transverse stiffening members, so that the curtain has, at the opposite side edges thereof, respective flexible flaps projecting beyond the ends of the transverse stiffening members, which flaps engage the vertex of the substantially V-shaped bottom wall of the groove of the respective upright.
  • a quick fold up closure device according to the invention, indicated 10 as a whole, comprises a stationary portal structure 12 that delimits an opening 14 of a wall of a building.
  • the structure 12 includes a pair of vertical uprights 16, parallel to each other, and an upper cross member 18 for connecting the uprights 16.
  • the opening 14 is delimited below by a transverse plane, usually consisting of the ground.
  • a closing member 20 slidably mounted in the vertical direction is associated with the portal structure 12, which is made of a flexible curtain of plastic material, usually PVC, polyethylene or polyurethane, or of a textile material made waterproof, having the horizontal upper edge fixed with respect to the upper cross member 18 or close to it.
  • the curtain 20 is movable between a lowered ( Figures 1 and 4 ) or raised ( Figures 2 and 3 ) configuration, in which it closes or opens, respectively, the opening 14, or vice-versa.
  • the curtain 20 comprises a series of panels 22 fixed to each other along the respective horizontal edges, transverse stiffening members usually consisting of substantially rigid bars 24 being provided, in a manner known per se, at the connection between pairs of adjacent panels 22.
  • a series of vertical strips or belts 26 is associated with the curtain 20, which extend along one of its faces.
  • the upper end of each strip 26 is fixed to a motorized shaft 28 rotatably mounted about its own axis, which is arranged parallel to the cross member 18 and in a position close to such cross member, while the lower end of each strip 26 is fixed to the curtain 20 in the vicinity of its lowermost bar (indicated 24a), for example at the lower horizontal edge of the lowermost panel 22 of the curtain 20.
  • each strip 26 passes through a series of eyelets usually formed by belt loops 30 that are fixed at the connecting zone between pairs of adjacent panels 22.
  • the groove 32 of each upright 16 is delimited by a bottom wall 34 and by a pair of side containment walls 36 that, at least in their portion adjacent to the cross member 18, are spaced of a width such as to allow all the loops 22a that are formed in the curtain 20 to be collected, as the latter moves towards its fully raised configuration.
  • the side containment walls 36 may be parallel, so that the groove 32 has a rectangular shape.
  • the bottom wall 34 of the groove 32 of each upright 16 is substantially V-shaped, and its vertex 38 constitutes a rectilinear guide seat for guiding the sliding of the respective ends of the stiffening bars 24.
  • each upright 16 consists of a single piece of metal sheet (indicated 15 in Figure 6 ) which is folded, starting from its flat and extended shape, so as to form the aforesaid bottom wall 34 and the pair of side containment walls 36, as well as end edges 36a of the latter.
  • the vertex of the bottom wall 34 is formed by a central rectilinear fold 38 of the bottom wall 34.
  • the groove 32 of each upright 16 has a shape progressively tapered downwards, i.e. towards the transverse plane delimiting the opening 14 below, so that the width of the groove 32 of the uprights 16 grows towards the upper cross member 18, in order to allow all the loops 22a that are formed progressively as a result of raising the curtain 20, to be accommodated with a reduced clearance.
  • the side containment walls 36 are inclined in order to diverge from their lower end close to the ground, so that the groove 32 has a tapered shape.
  • linear brush sealing members 40 are applied to at least one of the end edges 36a of the containment walls 36 of each upright 16, which are directed transversely to the general plane of the curtain 20 so as to face the curtain 20.
  • both the edges 36a of each upright 16 have a respective brush sealing member 40.
  • the width of the curtain 20 is slightly greater than the bars 24.
  • end side flaps 20a of the curtain 20 project beyond the ends of the bars 24, which flaps extend to the inside of the apex 38 of the bottom wall 34 of the grooves 32, and slidably engage it.
  • These flaps 20a which are as flexible as the curtain 20, constitute in practice lip seals interposed between the curtain 20, or the ends of the bars 24, and the sliding seat defined by the vertex 38 of the bottom wall 34 of the grooves 32.
  • the tapered shape of the grooves 32 of the uprights 16 allows to obtain, in addition to a better stability and planarity of the curtain 20 in its lowered configuration, and to a smaller overall dimensions of the base portions of the uprights 16, also a reduction of the manufacturing costs of the uprights 16, because it requires the use of less sheet material with respect to that having a traditional rectangular slot.
  • This fact is highlighted in figure 6 of the drawings, where the flat and unfolded shapes of the surface of a metal sheet 15a (dotted lines) that can be used for manufacturing a rectangular groove, and of the surface of a metal sheet 15 (solid lines) of a sheet used to form a tapered groove 32, are compared.
  • the vertex 38 of the V-shaped bottom wall 34 of the groove 32 of each upright 16 is substantially engaged by the respective end of each bar 24 of the curtain, whereby such vertex constitutes a rectilinear vertical guide seat for guiding these ends.
  • the curtain 20 is kept in a flat configuration both during its raising and in its completely lowered and extended configuration, so that transversal movements of the curtain 20 with respect to the uprights 16 are avoided.
  • the curtain 20 is kept in its flat configuration in an even more effective manner.
  • an inverse rotation of the shaft 28 causes the strips 26 to unwind and, by gravity, the various bars 24 to move away one to the other and the curtain 20 and the loops 22a to spread out, until the lower end of the curtain 20 reaches the contact with the transverse plane delimiting the opening 14 below.
  • the linear brush sealing members 40 applied to the edges 36a of the containment walls 36 of the uprights 16, and/or the side flaps 20a of the curtain that engage the inner cavity formed by the vertex 38 of the base wall 34 of the uprights 16, allow an optimal seal to be assured against the passage of air between the upstream and downstream environments with respect to the curtain 20, and therefore an insulation between such environments to be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Claims (6)

  1. Schnell schließende Faltvorrichtung mit einem flexiblen Vorhang (20), der vertikal zwischen einer abgesenkten Konfiguration und einer angehobenen Konfiguration oder umgekehrt in Bezug auf eine Portalstruktur (12) beweglich ist, die ein Paar paralleler Stützen (16) und ein oberes Querelement (18) zum Verbinden der Stützen (16) aufweist, wobei die Stützen (16) jeweilige Nuten (32) für den Eingriff der gegenüberliegenden Seitenränder des Vorhangs (20) und der gegenüberliegenden Enden von Querversteifungselementen (24) definieren, die mit dem Vorhang (20) verbunden sind, wobei die Nuten (32) in ihrem an das obere Querelement (18) angrenzenden Abschnitt eine Breite aufweisen, die die Aufnahme einer Reihe von Schleifen (22a) des Vorhangs (20) ermöglicht, wobei die Schleifen durch das Schieben des Vorhangs (20) in Richtung seiner angehobenen Konfiguration gebildet werden, wobei die Nut (32) jeder Stütze (16) eine im wesentlichen V-förmige Bodenwand (34) aufweist, dadurch gekennzeichnet, dass
    ein Scheitelpunkt (38) der V-förmigen Bodenwand (34) der Nut (32) jeder Stütze (16) einen geradlinigen Sitz für die Gleitbewegung der gegenüberliegenden Enden der Querversteifungselemente (24) bildet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sich die Form der Nut (32) jeder Stütze (16) zunehmend nach unten verjüngt, so dass ihre Breite in Richtung zum Querelement (18) zur Verbindung der Stützen (16) zunimmt.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stützen (16) aus einem einzigen Stück Metallblech (15) hergestellt sind, das so gefaltet ist, dass es die im Wesentlichen V-förmige Bodenwand (34) sowie ein Paar Rückhalteseitenwände (36) zum Halten der gegenüberliegenden Seitenränder des Vorhangs (20) und der gegenüberliegenden Enden der Querversteifungselemente (24) bildet.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Scheitelpunkt (38) der im Wesentlichen V-förmigen Bodenwand (34) der Nut (32) jeder Stütze (16) durch eine geradlinige zentrale Falte der Bodenwand (34) gebildet wird.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein geradliniges Bürstendichtungselement (40) an mindestens einer Rückhalteseitenwand (36) jeder Stütze (16) befestigt ist, wobei das Element dem Vorhang zugewandt und quer zur allgemeinen Ebene des Vorhangs (20) ausgerichtet ist.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Breite des Vorhangs (20) größer ist als die Länge der Querversteifungselemente (24), so dass der Vorhang an seinen gegenüberliegenden Seitenrändern jeweils flexible Laschen (20a) aufweist, die über die Enden der Querversteifungselemente (24) hinausragen, wobei diese Laschen (20a) in den Scheitelpunkt (38) der im Wesentlichen V-förmigen Bodenwand (34) der Nut (32) der jeweiligen Stütze (16) eingreifen.
EP18000624.9A 2017-07-31 2018-07-25 Hubtor Active EP3438405B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000087744A IT201700087744A1 (it) 2017-07-31 2017-07-31 Dispositivo di chiusura rapida ad impacchettamento

Publications (2)

Publication Number Publication Date
EP3438405A1 EP3438405A1 (de) 2019-02-06
EP3438405B1 true EP3438405B1 (de) 2020-08-26

Family

ID=60570140

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Application Number Title Priority Date Filing Date
EP18000624.9A Active EP3438405B1 (de) 2017-07-31 2018-07-25 Hubtor

Country Status (3)

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EP (1) EP3438405B1 (de)
ES (1) ES2833467T3 (de)
IT (1) IT201700087744A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112586964B (zh) * 2020-12-16 2022-04-08 宁波星宏智能技术有限公司 一种智能窗帘

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785639B1 (fr) * 1998-11-10 2001-03-16 Bernard Simon Porte de manutention et son dispositif de fixation des sangles de traction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
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None *

Also Published As

Publication number Publication date
IT201700087744A1 (it) 2019-01-31
EP3438405A1 (de) 2019-02-06
ES2833467T3 (es) 2021-06-15

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