EP3561214A1 - System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst - Google Patents

System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst Download PDF

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Publication number
EP3561214A1
EP3561214A1 EP19171297.5A EP19171297A EP3561214A1 EP 3561214 A1 EP3561214 A1 EP 3561214A1 EP 19171297 A EP19171297 A EP 19171297A EP 3561214 A1 EP3561214 A1 EP 3561214A1
Authority
EP
European Patent Office
Prior art keywords
tube
last link
link
last
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.)
Granted
Application number
EP19171297.5A
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English (en)
French (fr)
Other versions
EP3561214B1 (de
Inventor
Alain Jeunot
Jean-Marie Allemand
Sébastien Brogly
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.)
Zurfluh Feller SAS
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Zurfluh Feller SAS
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Publication date
Application filed by Zurfluh Feller SAS filed Critical Zurfluh Feller SAS
Publication of EP3561214A1 publication Critical patent/EP3561214A1/de
Application granted granted Critical
Publication of EP3561214B1 publication Critical patent/EP3561214B1/de
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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08Roll-type closures
    • E06B9/11Roller shutters
    • E06B9/17Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/171Rollers therefor; Fastening roller shutters to rollers
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening

Definitions

  • the present invention relates to a lock system comprising a winding tube of a shutter and a latch.
  • Roller shutters are used at the openings of buildings, such as windows. They are mainly used to adjust the brightness inside a room by adjusting the height of the shutter or, depending on the model, tilting the apron blades.
  • a rolling shutter installation generally comprises a trunk disposed in the upper part of the opening.
  • a winding tube of the flap is disposed in this trunk.
  • the invention relates more particularly to the mechanical connection between the rolling shutter deck and the roller shutter rolling tube.
  • Roller shutters are relatively vulnerable to burglary attempts. With basic models, it is usually enough for burglars to pass the hand or a fine tool under the last blade to lift the roller shutter and access the window, this is why some roller shutter installations, including those of individual houses and apartments on the ground floor include what is called a lock.
  • the lock is a device that automatically prevents the deck from being raised from the fully lowered position, by an external action (attempted break-in for example) other than a normal action on the operating device (winch or motor). Thanks to the presence of these locks, the shutters can be used as a means of protection preventing an intrusion into the building.
  • the maintenance of the link on the shaft can also be achieved without insert by a dovetail interface that can be clipped.
  • FR 2 831 596 A1 discloses a system in which the latch comprises three articulated links, among which a first link is configured to be attached to an upper blade of the shutter and a last link is configured to be attached to the outer surface of the tube, the last link and the tube including forms adapted to fit the last link on the outer surface of the tube.
  • the winding tube is provided with a single groove, having an undercut shape for securing with the last link of the lock.
  • the last link comprises two locking pins mounted on spring and the tube defines two openings shaped to receive these locking elements.
  • the invention intends to remedy more particularly by proposing a new system, in which the lock and the tube are simpler to manufacture and in which the connection between the tube and the lock is sufficiently resistant, a mechanical point of view, for the application concerned.
  • the invention relates to a system comprising a winding tube of a rolling shutter and a connection lock between the tube and the flap, the latch comprising at least two articulated links, among which a first link is configured to be attached to an upper blade of the flap and a last link is configured to be fixed on the outer radial surface of the tube, the last link and the tube comprising shapes adapted to fit a first portion of the last link on the outer radial surface of the tube.
  • the last link also comprises a second portion, curved, whose radius of curvature in the non-deformed state is less than the maximum radius of the outer radial surface of the tube, so that this second portion is elastically deformed during assembly of the lock around the tube and is fixed by clamping around the tube.
  • the first portion of the last link is connected to the tube by a dovetail connection.
  • the invention reinforces the strength of the connection between the lock and the tube by providing an elongated portion which will come to tighten around the tube. Indeed, since this elongated portion has a smaller radius of curvature than that of the tube, it will deform elastically during assembly. Thus, the constituent material of this elongate portion will seek to return to its original shape and thus to tighten the tube. This is called a clamping fixture. This portion is not complicated to manufacture because it is simply a modification of the geometry of the tube link. The dovetail connection is effective without the need to combine two rings around the winding tube.
  • the proposed principle allows a connection between the lock and the tube without insert.
  • the holding of the lock on the tube is directly ensured by the intrinsic shape of the tube link, which "clippes" directly on the tube, and which allows its interface in direct connection with the tube, rigidly thanks to the connection tail d dovetail, and in both directions of maneuvering.
  • the invention also relates to a shutter installation comprising such a system.
  • FIG. 1 to 3 On the Figures 1 to 3 is shown a system comprising a winding tube 4 of a roller shutter and a latch 2 connecting the tube 4 and the flap apron T.
  • this system comprises two identical bolts 2, only one is shown on the figures.
  • this system includes spare parts of a roller shutter installation (not shown in full therefore).
  • this system includes spare parts of a roller shutter installation (not shown in full therefore).
  • the latch 2 comprises at least two articulated links 2a and 2c, among which a first link 2a is configured to be attached to an upper blade of the deck T (shown in fine broken lines on the figure 1 ) and a last link 2c is configured to be fixed on the outer surface S4e of the tube 4.
  • the first link 2a may be better known as the "apron link” or “lower link”, while the last link 2c can be better known as “tube link” or "top link”.
  • the directions “up” and “down” for the interpretation of terms such as “up”, “down”, “upper”, “lower”, “above” are directions that we take by relative to a mounted configuration of the tube 4 and the latch 2 in the upper part of an opening.
  • the latch 2 and the flap T are directions that we take with respect to an assembled configuration of the lock 2 on the tube 4 and which must be interpreted with respect to the tube 4.
  • the links of the latch 2 are wound around the tube 4 and therefore comprise a face, called inner, turned to the tube 4, and another face, called outer, turned away from the tube 4.
  • the latch 2 also comprises an intermediate link 2b disposed between the first link 2a and the last link 2c.
  • the intermediate link is used unitarily but one could also consider a multiple chain. We would then have a chain of intermediate links. Also, this intermediate link 2b, or third link, is optional.
  • the links 2a, 2b and 2c are respectively articulated about two axes X2 and X'2 parallel to a central axis X4 of the tube 4.
  • the axis X2 is the axis of articulation between the links 2b and 2c, while the X'2 axis is the axis of articulation between the links 2a and 2b.
  • Each link is in the form of a profile, the largest dimension (longitudinal direction) is often parallel to the longitudinal axis X4 of the tube 4 in attached configuration of the lock on the tube.
  • the section of each link in a plane perpendicular to the longitudinal direction of the link, and therefore in a plane perpendicular to the longitudinal axis X4 of the tube 4 in the locked configuration of the lock on the tube, is generally banana-shaped. More specifically, the section of each link is curved, with a center of curvature positioned inward, that is to say on the side of the winding tube 4. In other words, each link has a curved shape on the outside, shaped to wrap around the tube 4.
  • the first two links 2a and 2b have a radius of curvature substantially identical to the maximum radius of the tube 4.
  • the links of the lock 2 can be manufactured by plastic injection or by extrusion of plastic or metal material.
  • the last link 2c and the tube 4 comprise shapes adapted to fit (or "clipper") a first portion 2.1 of the last link 2c on the outer surface S4e of the tube 4.
  • This portion 2.1 of the link 2c is called a "low” portion because it is arranged on the side of the link 2b disposed below.
  • the portion 2.1 of the link 2c thus defines the articulation with the link 2b.
  • said forms adapted to fit the portion 2.1 of the last link on the outer surface S4e of the tube 4 in fact comprise complementary reliefs in pairs, and respectively provided on the outer surface S4e of the tube 4 and on the inner surface S2i of the link 2c. These reliefs are shaped to allow interlocking of the male-female type.
  • the male part is indifferently on the tube 4 or on the link 2b.
  • the mechanical connection between the portion 2.1 of the link 2c and the tube 4 is a connection of the dovetail type, which consists of a trapezoid-shaped tenon, which may be symmetrical or asymmetrical, and a groove 40 of the same shape.
  • a symmetrical trapezoid is also called isosceles trapezium.
  • the post 20 has here an asymmetrical shape, in particular a truncated shape similar to a rectangle trapezium.
  • the pin 20 is formed on the inner surface S2i of the link 2c, while the groove 40 is delimited on the outer surface S4e of the tube 4, but the opposite is also possible.
  • the post 20 can be inserted with or without play inside the groove 40. In the figures, there is almost no play.
  • the post 20 When there is little or no play, the post 20 is deformed elastically during assembly of the last link 2c to come into engagement, that is to say snap elastically, inside the groove 40.
  • the pin 20 is mounted slightly in force inside the groove 40.
  • This force assembly provides a certain mechanical strength to the connection between the latch 2 and the tube 4.
  • the post 20 actually serves as holding pin.
  • This holding lug ensures the traction of the shutter apron T folding (when opening the shutter), and keeps the link 2c radially connected to the tube 4 through its trapezoidal shape, or dovetail.
  • the dovetail connection functions as a hook when the apron of the shutter T is partially open and suspended from the latch 2, in particular during the raising or lowering phases of the shutter of the shutter T, and also functions as a restraint during the low abutment of the shutter of the shutter T.
  • the tube 4 also comprises, on its outer surface S4e, a rib 42 adapted to cooperate with a reservation 24 provided on the inner surface S2i of the link 2c.
  • the rib 42 and the reservation 24 have complementary shapes to allow a male-female engagement.
  • the reservation 24 is U-shaped (flat bottom) and the rib 42 is of the same shape.
  • the last link 2c also comprises a second portion 2.2, referred to as "high” portion, because it is disposed on the upper part of the link 2c.
  • the second portion 2.2 may also be described as “extension” because it lengthens the curvilinear length of the link 2c.
  • Portion 2.2 thus consists of a section of link that extends the portion 2.1 upwards in the curvilinear direction. The portion 2.2 defines the free end of the link 2c.
  • the radius of curvature r2 of this second portion 2.2 is smaller than the maximum radius r4 of the outer radial surface S4e of the tube, so that this second portion 2.2 is elastically deformed during the mounting of the lock 2 around the tube 4 and is fixed by clamping around the tube 4.
  • the outer surface S4e of the tube 4 does not have a constant radius, especially because of the presence of rib (s) and / or groove ( s) on the outer radial surface S4e.
  • the radius of the outer surface S4e of the tube 4 is maximum when measured at the ribs of the tube, for example at the rib 42.
  • the second portion 2.2 of the link 2c when mounting the latch 2 around the tube 4, the second portion 2.2 of the link 2c is slightly flattened, that is to say deformed so that its radius of curvature increases.
  • the portion 2.2 tends to return to its original shape by elastic return of the material and therefore exerts on the tube stresses directed substantially in a radial direction and oriented inward (centripetal).
  • portion 2.2 is shown in the undeformed state (or rest) with interrupted fine lines and in the deformed state solid line. It will be understood, the deformed state corresponds to the state of the link 2c once attached to the tube 4.
  • the state of rest, or non-deformed is the state of the last link 2c when no stress is applied to the surfaces of the link 2c.
  • the two portions 2.1 and 2.2 of the last link 2c are made of the same material, for example polymer, in particular polyamide.
  • the two portions 2.1 and 2.2 of the last link 2c are manufactured wholly or partially with different materials, for example by a bi-injection molding process.
  • the first portion 2.1 of the link 2c could be made of a relatively softer and more adherent material than the material constituting the second portion 2.2.
  • the Young's modulus of the material constituting the first portion 2.1 will preferably be less than 2.5 MPa if it is used only superficially on the side of the flap tube (adhesive skin effect), whereas the modulus of Young of the material constituting the second portion 2.2 or the rest of the portion 2.1 will preferably be greater than 9500 MPa.
  • the material of the first portion 2.1 would be sufficiently flexible to allow easy nesting the reliefs of the link 2c within those of the tube 4 and the material of the second portion 2.2 would be sufficiently rigid to generate an elastic return stress relatively important, and therefore a clamping force around the tube 4 relatively high.
  • the partial use of a softer material allows the adhesion between the surfaces of the tube 4 and that of one of the portions of the link, which prevents the link 2c from sliding along the tube 4. This also improves the mechanical strength of the connection between the latch 2 and the tube 4.
  • the last link 2c and the tube 4 comprise shapes adapted to hang the second portion 2.2 of the last link 2c on the outer radial surface S4e of the tube 4.
  • said forms adapted to hang the portion 2.2 of the last link 2c on the outer surface S4e of the tube 4 comprise in fact a rib 44 formed on the outer surface of the tube 4, on which hangs a free end 26 of portion 2.2.
  • This end 26 is bent substantially at 90 °, radially inward, which can be likened to a hook shape.
  • the rib 44 could be replaced by a recess, shaped to receive the end 26 of the portion 2.2 of the link 2c.
  • the end 26 would preferably be of complementary shape to that of the hollow, to perform a fitting of the male-female type, with or without play.
  • the last link 2c and the tube 4 could comprise shapes adapted to fit the second portion 2.2 of the last link 2c on the outer surface S4e of the tube 4.
  • the portion 2.2 and the tube 4 would comprise complementary two-to-two reliefs, respectively provided on the outer surface S4e of the tube 4 and on the inner surface S2i of the link 2c. These reliefs would advantageously be shaped to allow interlocking of the male-female type.
  • the male part could be indifferently on the tube 4 or on the link 2b.
  • the two portions 2.1 and 2.2 of the last link 2c are movable relative to each other.
  • the second portion 2.2 could be at least partially retractable within a reservation formed inside the first portion 2.1.
  • the curvilinear length of the second portion 2.2 and adapt to different tube geometries.
  • the second portion 2.2 is telescopic, and therefore adjustable in length.
  • the system comprises locking means for blocking the movement of the last link in translation along the tube, whereas these locking means preferably comprise at least one lug carried by the last link and a radial opening of the tube adapted to receive the lug.
  • the post 20 is inserted inside the groove 40 with play.
  • the post 20 is held inside the groove 40 under the effect of only the elastic stresses generated by the elastic deformation of the portion 2.2.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP19171297.5A 2018-04-27 2019-04-26 System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst Active EP3561214B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1853734A FR3080644B1 (fr) 2018-04-27 2018-04-27 Systeme comprenant un tube d'enroulement d'un volet roulant et un verrou et installation de volet roulant comprenant un tel systeme

Publications (2)

Publication Number Publication Date
EP3561214A1 true EP3561214A1 (de) 2019-10-30
EP3561214B1 EP3561214B1 (de) 2020-10-28

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EP19171297.5A Active EP3561214B1 (de) 2018-04-27 2019-04-26 System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst

Country Status (2)

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EP (1) EP3561214B1 (de)
FR (1) FR3080644B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3933163A1 (de) * 2020-07-03 2022-01-05 fischerwerke GmbH & Co. KG Anordnung zu einer gelenkigen verbindung eines rollpanzers eines rollladens mit einer rollladenwelle und rollladen mit einer solchen anordnung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10131646A (ja) * 1996-10-30 1998-05-19 Bunka Shutter Co Ltd シャッターカーテンの吊元構造
FR2831596A1 (fr) * 2001-10-26 2003-05-02 Zurfluh Feller Dispositif de verrou pour tablier de volet roulant et caisson de volet roulant incorporant ce dispositif
WO2009013414A2 (fr) * 2007-06-27 2009-01-29 Zurfluh Feller Verrou de securite automatique pour volet roulant, et volet roulant equipe d'un tel verrou
FR2950102A1 (fr) * 2009-09-11 2011-03-18 Midi Moulages Plast Dispositif de liaison entre un arbre rotatif et un tablier a lames articulees de volet roulant, et volet roulant muni d'un tel dispositif.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10131646A (ja) * 1996-10-30 1998-05-19 Bunka Shutter Co Ltd シャッターカーテンの吊元構造
FR2831596A1 (fr) * 2001-10-26 2003-05-02 Zurfluh Feller Dispositif de verrou pour tablier de volet roulant et caisson de volet roulant incorporant ce dispositif
WO2009013414A2 (fr) * 2007-06-27 2009-01-29 Zurfluh Feller Verrou de securite automatique pour volet roulant, et volet roulant equipe d'un tel verrou
FR2950102A1 (fr) * 2009-09-11 2011-03-18 Midi Moulages Plast Dispositif de liaison entre un arbre rotatif et un tablier a lames articulees de volet roulant, et volet roulant muni d'un tel dispositif.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3933163A1 (de) * 2020-07-03 2022-01-05 fischerwerke GmbH & Co. KG Anordnung zu einer gelenkigen verbindung eines rollpanzers eines rollladens mit einer rollladenwelle und rollladen mit einer solchen anordnung

Also Published As

Publication number Publication date
EP3561214B1 (de) 2020-10-28
FR3080644A1 (fr) 2019-11-01
FR3080644B1 (fr) 2021-06-25

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