EP4198249A1 - Aufhängungsbaugruppe für einen rollladenschirm und rollladenanlage mit solch einer baugruppe - Google Patents

Aufhängungsbaugruppe für einen rollladenschirm und rollladenanlage mit solch einer baugruppe Download PDF

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Publication number
EP4198249A1
EP4198249A1 EP22213374.6A EP22213374A EP4198249A1 EP 4198249 A1 EP4198249 A1 EP 4198249A1 EP 22213374 A EP22213374 A EP 22213374A EP 4198249 A1 EP4198249 A1 EP 4198249A1
Authority
EP
European Patent Office
Prior art keywords
tube
link
lock
configuration
suspension
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.)
Pending
Application number
EP22213374.6A
Other languages
English (en)
French (fr)
Inventor
Sébastien Brogly
Alain Jeunot
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
Original Assignee
Zurfluh Feller SAS
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
Priority claimed from FR2113581A external-priority patent/FR3130309A1/fr
Application filed by Zurfluh Feller SAS filed Critical Zurfluh Feller SAS
Publication of EP4198249A1 publication Critical patent/EP4198249A1/de
Pending 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/171—Rollers therefor; Fastening roller shutters to rollers

Definitions

  • the present invention relates to a suspension sub-assembly for a roller shutter screen.
  • the invention also relates to a roller shutter installation comprising such a sub-assembly.
  • a roller shutter installation generally comprises a box, which is fixed to the wall above the opening and in which is housed a tube, pivotally mounted relative to the box and around which a roller shutter apron is wound.
  • a user controls the rotation of the tube and, depending on the direction of rotation of the tube, an unrolled portion of the apron rises or falls in front of the opening to partially or completely conceal it.
  • the connection between the roller shutter apron and the tube is made by means of a part called a bolt.
  • the apron is generally connected to the tube by two locks, or even more depending on the length of the tube.
  • the tube and the locks thus form an apron suspension sub-assembly.
  • Each latch generally comprises several links hinged together, with a front link attached to the tube and a rear link attached to an upper blade of the apron. Depending on the configurations, the front link and the rear link are separated by one or more other intermediate links or directly hinged to each other.
  • the latch generally has an anti-lifting function, i.e. when the deck is fully extended in front of the corresponding opening, the links are braced so as to exert a force on the deck preventing the deck from being manually raised. apron.
  • the apron is generally made up of articulated blades which roll up, within the trunk, around the tube and the links of the lock.
  • the size of the boot is thus dictated by the size of the suspension sub-assembly and of the bulkhead in the rolled-up configuration. In general, it is desirable, for aesthetic reasons in particular, that the trunk be as small as possible.
  • a first approach consists in manufacturing a tube of minimum diameter and/or a lock of minimum thickness.
  • this approach reaches its limits, because the parts of the suspension sub-assembly must have a minimum of mechanical strength to fulfill their functions of attaching the bulkhead and anti-raising.
  • Another approach is to manufacture deck slats of minimal thickness, the slats being for example made of aluminum alloy, so that the bulk of the rolled up apron is as small as possible. Again, this approach is limited for constraints of solidity and/or thermal insulation, the thinner blades generally being less insulating than the thicker blades.
  • the invention more particularly intends to remedy by proposing a suspension sub-assembly which is more compact.
  • the reinforcement of the front hinge is received in the first groove, which makes it possible to have a resistant lock, with a reinforced rear hinge, while remaining relatively thin.
  • the coiled-configuration suspension sub-assembly is thus more compact.
  • a roller shutter apron is attached to the suspension sub-assembly and wound around the suspension sub-assembly, the overall size of this winding is reduced.
  • a roller shutter installation 10 is represented on the figure 1 .
  • the roller shutter installation 10 is mounted on a wall 12 comprising an opening 14.
  • the wall 12 is here represented in transparency, while the opening 14 is represented by a dotted parallelepiped portion.
  • the opening 14 is for example a window, a door or a garage entrance.
  • the wall 12 is assumed to be vertical, the description being made in relation to the orientation of the various elements represented in the figures, knowing that it may be otherwise in reality.
  • the roller shutter installation 10 comprises a box 20, which is therefore a roller shutter box.
  • the trunk 20 has an elongated shape extending along a main axis A20.
  • the trunk 20 is fixed to the wall 12 above the opening 14, the main axis A20 here being horizontal.
  • the box 20 is formed from an assembly of boards 22, each of which extends parallel to the main axis A20 and which together delimit an internal space V20 of the box 20.
  • the boards 22 are represented in transparency in center lines, to reveal the interior of the trunk 20.
  • the roller shutter installation 10 comprises a tube 100, which is received in the internal space V20.
  • the tube 100 has a cylindrical shape extending along an axis longitudinal A100, is made of metal, for example steel, and is manufactured here by bending a sheet.
  • a transverse plane P100 of the tube 100 is defined as being a plane orthogonal to the longitudinal axis A100.
  • THE figure 3 And 4 are therefore views in section along a plane parallel to the transverse plane P100.
  • the tube 100 comprises, at each of its ends, a bearing 102, each bearing 102 being carried by a respective flange 30 of the box 20, so that the tube 100 is pivotally mounted relative to the box 20, around its longitudinal axis A100 .
  • the longitudinal axis A100 is aligned with the main axis A20.
  • Each flange 30 is carried by a bracket 32, which is secured to the wall 12 by means of a slider 42.
  • the roller shutter installation 10 thus comprises two sliders 42, which are arranged opposite one of the the other on either side of the opening 14. Each slide 42 here receives a lug 32 supporting a flange 30.
  • the roller shutter installation 10 also comprises a roller shutter apron 36 and latches 200, via which the apron 36 is attached to the tube 100.
  • the roller shutter installation 10 here comprises two latches 200.
  • the tube 100 form, with the two locks 200, a sub-assembly 300 for suspending the apron 36.
  • the two locks 200 operate in the same way and are preferably identical to each other. What is valid for one of the two locks 200 can be transposed to the other lock 200.
  • the apron 36 is connected to the tube 100 by three locks 200, or even more, depending on the length of the tube 100, which is its largest dimension parallel to the longitudinal axis A100.
  • the tube 100 has, in projection on the transverse plane P100, a cross section which defines an outline 101.
  • the outline 101 is a convex shape, which represents the overall size of the tube 100.
  • the outline 101 globally has a circular section centered on the longitudinal axis A100.
  • Contour 101 is shown in dotted lines on the figure 3 And 4 .
  • the contour 101 has here for section a circle circumscribed to the tube 100.
  • the tube 100 advantageously comprises first grooves 104, which extend along the tube 100 parallel to the longitudinal axis A100 and which are configured to cooperate mechanically with the locks 200.
  • the first grooves 104 are set back from the outline 101, that is to say between the contour 101 and the longitudinal axis A100.
  • the tube 100 here comprises four first grooves 104, which are associated in pairs, the first grooves 104 of the same pair here being separated by a longitudinal protrusion 105.
  • the pairs of first grooves 104 are diametrically opposed to each other. .
  • the pairs of first splines 104 are arranged on either side of a median plane ⁇ 104 of the tube 100, the median plane ⁇ 104 being a plane of symmetry of the tube 100 carrying the longitudinal axis A100.
  • the shape of the first grooves 104 is not limiting.
  • the longitudinal protuberance 105 has another shape, or even is absent.
  • Fixing slots 106 are here made along the tube 100, that is to say parallel to the longitudinal axis A100, for fixing the locks 200 to the tube 100.
  • the fixing slots 106 are here made on the protuberance longitudinal 105 between the first two grooves 104 of the same pair of first grooves. Other arrangements of lights 106 are of course possible.
  • the fixing of the locks 200 to the tube 100 is not detailed further.
  • the tube 100 also includes second grooves 108.
  • the tube 100 here includes two second grooves 108.
  • the second grooves 108 are set back from the contour 101.
  • the two second grooves 108 are diametrically opposed to each other, the two second grooves 108 being arranged symmetrically to one another with respect to a longitudinal plane ⁇ 108 of the tube 100.
  • the longitudinal plane ⁇ 108 is a plane which carries the longitudinal axis A100 and which is orthogonal to the median plane ⁇ 104.
  • Each second spline 108 comprises a bottom 109.
  • the bottom 109 is geometrically carried by a cylindrical surface of circular section centered on the longitudinal axis A100.
  • the median plane ⁇ 104 and the longitudinal plane ⁇ 108 are each a plane of symmetry of the tube 100.
  • the longitudinal axis A100 is here an axis of symmetry of the tube A100.
  • the tube 100 comprises radial portions 110, which are geometrically carried by the contour 101.
  • the tube 100 here comprises four radial portions 110.
  • Each radial portion 110 is here a portion of circular section cylinder centered on the longitudinal axis A100.
  • Each lock 200 comprises a front link 202, sometimes called a "tube-link", by which the each lock 200 is attached to the tube 100.
  • Each front link 202 cooperates with at least one fixing slot 106.
  • the front link 202 is fixed to the tube 100, the corresponding lock 200 is in a so-called “mounted” configuration on the tube 100.
  • the front link 202 is here partially received in a pair of first splines 104.
  • Each lock 200 also includes a rear link 204, by which each lock 200 is attached to the apron 36.
  • each lock 200 also includes an intermediate link 203, which is inserted between the front link 202 and the rear link 204 .
  • each lock 200 does not include an intermediate link.
  • each lock 200 comprises two intermediate links of the type of intermediate link 203, or even more.
  • the single link 203 configuration is still preferred.
  • the lock 200 comprises, in addition to the first intermediate link 203 described in the figures, at least one other intermediate link, this other intermediate link is called an “additional link”.
  • this other intermediate link is called an “additional link”.
  • the additional link or links are identical to the intermediate link 203.
  • Each front 202, intermediate 203 or rear 204 link comprises a respective body 208.
  • the bodies 208 are made of a rigid synthetic polymer material, considered non-deformable.
  • the bodies 208 are preferably made of a thermoplastic material and are generally manufactured by hot injection.
  • the bodies 208 are here made of polyamide filled with glass fibers.
  • the bodies 208 of two adjacent links for example the body 208 of the front link 202 and the body 208 of the intermediate link 203, or else the body 208 of the intermediate link 203 and the body 208 of the rear link 204, are hinged together by a axis hinge parallel to the longitudinal axis A100 when the lock 200 is mounted on the tube 100.
  • the intermediate link 203 is articulated in rotation with the rear link 204 around a rear hinge 210, having a rear axis A210.
  • the rear axis A210 is parallel to the longitudinal axis A100 in the mounted configuration of the lock 200.
  • the intermediate link 203 is also articulated in rotation with the front link 202 around a front hinge 212, having a front axis A212.
  • the front axis A212 is parallel to the rear axis A210, the front A212 and rear axes A210 therefore being parallel to the longitudinal axis A100 when the lock 200 is in the configuration mounted on the tube 100.
  • the intermediate link 203 is here a second link, which is articulated in rotation around the front hinge 212.
  • the rear link 204 is directly hinged in rotation relative to the front link 202 around the front hinge 212.
  • the rear link 204 is then, relative to the front link 202, a second link.
  • Each hinge 210 and 212 is made here by means of a rod 214, which is made here of metal and which is centered on the axis A210 or A212 of the corresponding hinge.
  • the apron 36 is formed by an assembly of blades 38 hinged together.
  • the blades 38 include an upper blade 40, which is attached to the rear link 204 of each lock 200.
  • each lock 200 is then in a so-called “attached” configuration of the lock to the apron 36.
  • Each of the two slides 42 receives ends of the blades 38 and 40.
  • Blades 38 are generally made by extrusion and are considered rigid and dimensionally stable. Blades 38 are generally made of PVC or an aluminum alloy. When the slats 38 are made of PVC, the slats 38 are generally dyed in the mass. When the blades 38 are made of an aluminum alloy, the blades 38 are generally painted. In a variant not shown, the blades 38 are filled with an insulating material, for example an insulating foam such as polystyrene or polyurethane.
  • each lock 200 is in the configuration mounted on the tube 100, in particular each front link 202 is assembled to the tube 100.
  • apron 36 when a user controls the rotation of the tube 100, either manually by means, for example, of a crank/pinion assembly or of a strap/pulley assembly, or automatically by means of an electric motor, the apron 36 is rolled up or unrolled around tube 100 depending on the direction of rotation of tube 100.
  • Tube 100 is therefore a winding tube for apron 36.
  • An unrolled portion of apron 36 which passes through a lower slot in the trunk 20 arranged between the boards 22 and which is guided by the wings 42, then rises or falls in front of the opening 14 to partially or completely conceal it.
  • the apron 36 is shown completely unwound; also by extension, the roller shutter installation 10 and the suspension sub-assembly 300 are each said to be in the unrolled configuration. Under the action of the tube 100, each hinge 210 and 212 is then in abutment, so as to fulfill the anti-lifting function of the lock 200. This aspect is not detailed further.
  • the apron 36 attached to the tube 100 by the latch 200, is shown wrapped around the tube 100.
  • the roller shutter installation 10 the suspension sub-assembly 300 and the latch 200 are each said to be in the rolled-up configuration. .
  • An internal face 36A of the apron 36 is defined as being a face of the apron 36 oriented towards the tube 100 when the apron 36 is wound around the tube 100.
  • an external face 36B of the apron 36 is also defined as being a face opposite the internal face 36A, in other words a face facing away from the tube 100 when the apron 36 is wrapped around the tube 100.
  • an outer surface 208A of the corresponding body 208 is defined as being a surface facing away from the tube 100 when the lock 200 is assembled to the tube 100 and wound around this tube 100.
  • the external surface 208A of each body 208 is oriented towards the internal face 36A of the apron 36.
  • an internal surface 208B of the corresponding body 208 is defined as being a surface oriented opposite to the external surface 208A of this body 208.
  • Each internal surface 208B is oriented towards the tube 100 when the latch 200 is in the configuration mounted on the tube 100 and wound around this tube 100. More specifically, each internal surface 208B is located opposite a respective radial portion 110 of the tube 100, while the rear hinge 210 is located opposite of the second spline 108 located between the two radial portions 110.
  • the latch 200 has an outer casing 212A, which is a geometric surface that carries the outer portions 208A of the intermediate 203 and rear 204 links when the suspension subassembly 300 is in the coiled configuration.
  • the outer surfaces 208A of the intermediate 203 and rear 204 links together define the outer casing 212A.
  • the lock 200 also has an internal envelope 212B, which is a geometric surface which carries the internal portions 208B of the intermediate 203 and rear 204 links when the suspension subassembly 300 is in the rolled-up configuration.
  • an internal envelope 212B which is a geometric surface which carries the internal portions 208B of the intermediate 203 and rear 204 links when the suspension subassembly 300 is in the rolled-up configuration.
  • the internal surfaces 208B of the intermediate 203 and rear 204 links together define the internal casing 212B.
  • the internal casing 212B of the lock 200 is a cylinder of circular section centered on the longitudinal axis A100.
  • the outer casing 212A of the lock 200 is a cylinder of circular section centered on the longitudinal axis A100, so as to reduce the size of the suspension sub-assembly 300 in the rolled-up configuration.
  • the outer casing 212A is therefore preferably coaxial with the inner casing 212B.
  • a thickness E208 of the corresponding body 208 is defined as the minimum distance, in projection on a transverse plane P100, between the outer surface 208A and the inner surface 208B of the corresponding body 208.
  • the thickness E208 here corresponds to the distance between the outer casing 212A and the inner casing 212B.
  • the thickness E208 must be as small as possible, so as to reduce the overall size of the suspension subassembly 300 in configuration rolled up.
  • the thickness E208 is selected to be less than 12 mm, preferably less than 10 mm, more preferably less than 8 mm.
  • “lower”, is meant here “lower or equal”, within assembly and/or manufacturing tolerances, that is to say within ⁇ 10%.
  • the links 204 and 203 must have a minimum of rigidity and mechanical strength.
  • the thickness E208 is selected greater than 3 mm, preferably greater than 5 mm, more preferably greater than 6 mm.
  • greater is meant “greater than or equal”, within assembly and/or manufacturing tolerances, that is to say within ⁇ 10%.
  • the thickness E208 is equal to 6 mm, within assembly and/or manufacturing tolerances.
  • the rear 204 and intermediate 203 links have reinforcements 216, which are provided to guarantee a minimum thickness of material around the rods 214 and to reinforce the hinges. These reinforcements 216 are made projecting with respect to the internal surfaces 208B and generate, with respect to the thickness E208, extra thicknesses of material, these extra thicknesses being distributed radially to the front axes A212 and rear A210.
  • Each reinforcement 216 has, at the rear hinge 210, a thickness E216, measured radially to the longitudinal axis A100 when the suspension sub-assembly 300 is in the rolled-up configuration.
  • the thickness E216 of the reinforcements 216 is thus greater than the thickness E208 of the corresponding body 208.
  • the body 208 is a thinned portion compared to the reinforcements 216.
  • the reinforcement 216 has, at the rear hinge 210, a thickness E216, measured radially to the longitudinal axis A100 when the suspension subassembly 300 is in the rolled-up configuration, equal to 7 mm.
  • the corresponding reinforcement 216 is arranged so that, in the rolled-up configuration of the suspension sub-assembly 300, part of this reinforcement 216 is received in the second spline 108 located opposite. In other words, part of the rear hinge 210 protrudes from the internal casing 212B in the direction of the longitudinal axis A100.
  • the reinforcements 216 of the rear 210 and front 212 hinges do not protrude from the outer casing 212A, which contributes to reducing the overall size of the suspension sub-assembly 300, while offering improved solidity at the level of the hinges. front 212 and rear 210.
  • Each second groove 108 has a depth P108, which is equal to a distance between the bottom 109 of this second groove 108 and the contour 101 of the tube 100, measured radially to the longitudinal axis A100.
  • the depth P108 of each second spline 108 is dimensioned so that the rear hinge 210 does not touch the bottom 109 of the corresponding second spline 108 when the suspension sub-assembly 300 is in the rolled-up configuration.
  • the reinforcements 216 associated with the rear hinge 210 do not touch the bottom 109 of the second spline 108 opposite.
  • the depth P108 is greater than 3 mm, preferably greater than 4 mm, preferably greater than 5 mm. In the example illustrated, the depth P108 of each second groove 108 is equal to 3 mm.
  • each rear link 204 bears against the tube 100, here against the radial portions 110.
  • the apron 36 exerts on the lock 200, in particular on the rear link 204, compressive forces radial to the longitudinal axis A100 and centripetal, these compressive forces being transmitted to the radial portions 110. This avoids the premature wear and the risk of breakage of the lock 200, in particular of the rear link 204.
  • one of the first grooves 104 is advantageously arranged to receive part of the front hinge 212 when the lock 200 is in the configuration mounted on the tube 100.
  • part of the front hinge 212 protrudes from the internal envelope 212B in the direction of the longitudinal axis A100.
  • Each first groove 104 has a depth P104, which is equal to a distance between a bottom of this first groove 104 and the contour 101 of the tube 100, measured radially to the longitudinal axis A100.
  • the depth P104 of each spline 104 is advantageously dimensioned so that the front hinge 212 does not touch the bottom of the corresponding spline 104 when the suspension sub-assembly 300 is in the rolled-up configuration. More precisely, the reinforcements 216 associated with the front hinge 212 do not touch the bottom of the spline 104 opposite.
  • the internal surface 208B of the intermediate link 203 bears against the tube 100, here against the radial portions 110.
  • the apron 36 exerts on the lock 200, in particular on the intermediate link 203, compressive forces radial to the longitudinal axis A100 and centripetal, these compressive forces being transmitted to the radial portions 110. This prevents premature wear and the risks of breakage of the lock 200, in particular of the intermediate link 203.
  • the inner surface 208B of the intermediate link 203 bears on the surface against the tube 100. More preferably, the inner surface 208B of the link intermediate link 203 is in continuous support against the tube 100.
  • continuous support it is meant that the internal surface 208B of the intermediate link 203 is in support against the radial portion 110 opposite over at least 30% of an area of a projection, radially to the longitudinal axis A100, of the internal surface 208B on the radial portion 110 opposite, preferably over at least 50%, preferably over at least 70%.
  • the depth P104 of the first grooves 104 is greater than 3 mm, preferably greater than 4 mm, preferably greater than 5 mm. In the example illustrated, the depth P104 of each groove 104 is equal to 3 mm, within assembly and/or manufacturing tolerances.
  • the internal envelope 212B of the lock 200 coincides with the outline 101 of the tube 100.
  • the internal surfaces 208B of the rear link 204 and of the intermediate link 203 are geometrically carried by the outline 101 of the tube, preferably surface support against the corresponding radial portions 110.
  • the internal surfaces 208B bear surface against the tube 100.
  • recesses and/or ribs can be made in the links, to lighten and/or strengthen the links, or even in connection with the method of manufacturing the links.
  • the links here being produced by hot injection, recesses are generally provided to reduce shrinkage during the cooling of the parts.
  • tube 100 includes two second splines 108.
  • the tube 100 comprises only a single second spline 108.
  • the configuration with two second splines 108 is however preferred, because it makes it possible to mount the lock 200 on the tube 100 without worrying about the orientation of the tube 100 with respect to the lock 200, the rear hinge 210 being received in one of the second splines 108, in the rolled-up configuration of the suspension subassembly 300, regardless of the mounting direction of the lock 200 on the tube 100.
  • the additional link or links are interposed between the intermediate link 203 and the rear link 204, two consecutive intermediate links being hinged together in rotation around a clean intermediate hinge, having an intermediate axis parallel to the front axis A212.
  • Each additional link has its own internal surface 208B which, when the lock 200 is in the mounted configuration and wound around the tube 100, is oriented towards the tube 100 and is carried by the internal casing 212B, and an external surface 208A, opposite the inner surface 208B.
  • Each intermediate hinge comprises a reinforcement 216, which protrudes the inner casing 212B in the direction of the longitudinal axis A100 when the suspension sub-assembly 300 is in the rolled-up configuration.
  • the tube For each intermediate hinge, the tube comprises 100 a respective second groove 108, called an additional groove, each additional groove being arranged to receive part of the reinforcement 216 of the corresponding intermediate hinge when the lock 200 is in the mounted configuration and is wound around of the tube 100, so that the internal surface 208B of the intermediate links associated with this intermediate hinge bear against the tube 100.

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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)
EP22213374.6A 2021-12-15 2022-12-14 Aufhängungsbaugruppe für einen rollladenschirm und rollladenanlage mit solch einer baugruppe Pending EP4198249A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2113581A FR3130309A1 (fr) 2021-12-15 2021-12-15 Verrou de volet roulant, installation de volet roulant comprenant un tel verrou et procédé de fabrication associé
FR2209345A FR3130310A1 (fr) 2021-12-15 2022-09-16 Sous-ensemble de suspension d’un écran de volet roulant, et installation de volet roulant comprenant un tel sous-ensemble

Publications (1)

Publication Number Publication Date
EP4198249A1 true EP4198249A1 (de) 2023-06-21

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Application Number Title Priority Date Filing Date
EP22213374.6A Pending EP4198249A1 (de) 2021-12-15 2022-12-14 Aufhängungsbaugruppe für einen rollladenschirm und rollladenanlage mit solch einer baugruppe

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771800A1 (de) * 2019-08-01 2021-02-03 Zurflüh-Feller System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3771800A1 (de) * 2019-08-01 2021-02-03 Zurflüh-Feller System, das ein aufrollrohr eines rollladens und einen sperrriegel umfasst, und rollladenanlage, die ein solches system umfasst

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