EP3816390A1 - Protection contre l'ouverture d'un volet roulant et volet roulant avec protection contre l'ouverture - Google Patents

Protection contre l'ouverture d'un volet roulant et volet roulant avec protection contre l'ouverture Download PDF

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Publication number
EP3816390A1
EP3816390A1 EP20199981.0A EP20199981A EP3816390A1 EP 3816390 A1 EP3816390 A1 EP 3816390A1 EP 20199981 A EP20199981 A EP 20199981A EP 3816390 A1 EP3816390 A1 EP 3816390A1
Authority
EP
European Patent Office
Prior art keywords
roller shutter
chain
push
link
push link
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
EP20199981.0A
Other languages
German (de)
English (en)
Inventor
Moreno Miotto
Michele MARTINI
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co KG
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 Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP3816390A1 publication Critical patent/EP3816390A1/fr
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
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening

Definitions

  • the invention relates to a slide protection for a roller shutter with the features of the preamble of claim 1 and a roller shutter with a slide protection.
  • a roller shutter consists of a roller curtain with roller shutter slats, which are articulated to one another around pivot axes transversely to a direction of displacement of the roller curtain, so that they can be wound onto a roller shutter shaft.
  • the roller shutter slats typically have approximately flat rectangular tube profiles, which are usually slightly curved in the direction of displacement for easier winding.
  • a roller shutter usually has sliding guides on both sides of the roller curtain, with which the roller shutter slats are guided so that they can be moved in the direction of displacement.
  • the designation as "armor” does not necessarily mean armor, the roller shutter slats are typically made of plastic or an aluminum alloy. There is usually a gap between the sliding guides and the roller shutter shaft.
  • the European patent application EP 0 731 247 A2 discloses a roller shutter whose roller shutter slats closest to a roller shutter shaft are designed as protection against being pushed open. These roller shutter slats are connected to one another in an articulated manner like conventional roller shutter slats, but unlike conventional roller shutter slats they can be pushed into one another a little in the direction of displacement when they are unwound from the roller shutter shaft. The nested roller shutter slats cannot be pivoted against each other, so that they can transmit a thrust force to the roller shutter shaft and thereby lock the roller shutter against being pushed open, provided the roller shutter shaft is held in a rotationally fixed manner.
  • the object of the invention is to increase the robustness of a slide protection for a roller shutter of the type explained above.
  • the anti-slide protection according to the invention is provided for a roller shutter with a roller shutter having roller shutter slats.
  • the anti-slip protection has a push link chain that connects a roller shutter slat of the roller curtain to a roller shutter shaft.
  • the roller shutter is preferably guided displaceably with a sliding guide which is at a distance from the roller shutter shaft.
  • the push link chain has articulated interconnected chain links, which are designed in the manner of plugs and couplings and which are pushed together when a thrust is exerted, so to speak inserted into one another, so that they can no longer be pivoted against one another.
  • the push link chain is able to transmit not only a pulling force but also a pushing force. If the roller shutter and the sliding link chain are unwound from the roller shutter shaft and the roller shutter shaft is held in a rotationally fixed manner, the chain links of the sliding link chain, which are pushed into one another and therefore cannot pivot against one another, prevent the roller shutter in the sliding guide from being pushed in the direction of the roller shutter shaft.
  • the nested chain links of the push link chain of the anti-slide device according to the invention prevent or at least make it more difficult for the roller shutter to be pushed open. It is possible for chain links pushed into one another to pivot relative to one another by, for example, 3 °, 5 ° or 7 ° due to play.
  • the anti-lift device has a pulling means that can be wound onto the roller shutter shaft, such as a rope or a band, in particular a metal band.
  • the traction means connects two chain links of the push link chain or a chain link and the roller shutter shaft movably with one another in a longitudinal direction of the push link chain.
  • the traction means preferably connects a first and a last chain link to one another or a last chain link connected to the roller curtain to the roller shutter shaft.
  • traction means can also be provided which connect two, for example, adjacent chain links of the push link chain to one another in a movable manner in the longitudinal direction of the push link chain.
  • the chain links of the push link chain Due to the mobility of the chain links of the push link chain with respect to the traction mechanism, the chain links can be pulled apart so that they can be pivoted against one another, and pushed together, that is, slide into one another, so that they cannot be pivoted against one another.
  • the mobility of the chain links compared to the push link chain the traction means is dimensioned so that the traction means transmits a tensile force between the chain links or between the roller shutter shaft and the last chain link, whereby the articulated connections of the chain links are relieved of the tensile force.
  • the chain links transmit the pushing force against sliding the roller shutter from the roller curtain onto the roller shutter shaft, which is held in a rotationally fixed manner, and the traction device transmits the tensile force when the roller shutter is being wound onto the roller shutter shaft.
  • the traction means transmits the tensile force between the chain links or from the roller shutter shaft to the roller curtain.
  • the chain links of the push link chain also transmit part of the tensile force.
  • the "first chain link” is the one connected to the roller shutter shaft and the “last chain link” is the chain link of the push link chain connected to the curtain, regardless of whether it is actually the first or the last chain link, or whether the push link chain has other chain links outside the first and the last chain link.
  • a preferred embodiment of the invention provides a channel which penetrates the chain links of the push link chain in the longitudinal direction and through which the traction means is guided.
  • the channel forms a guide for the traction means, it also holds the traction means in the chain links when the push link chain runs in an arc, and the channel enables the traction means to move relative to the chain links in the longitudinal direction of the push link chain.
  • One embodiment of the invention provides snap connectors for the chain links of the push link chain, which connect the chain links in an articulated manner and movably in the longitudinal direction of the push link chain.
  • the snap connectors allow the chain links to be easily connected to one another and preferably also to be detached from one another. Because the traction means transmits the tensile force, the mechanical strength of the connection of the chain links is not very demanding.
  • One embodiment of the invention provides a stop of the traction means that comes into contact with the first chain link or the roller shutter shaft when the push link chain is subjected to tensile stress, so that the tensile force from the first chain link or from the roller shutter shaft to the last chain link via the abutting stop , which is connected to the roller armor, is transmitted and the chain links are relieved of the tensile force.
  • a further development of the invention provides that fastening points for the stop are provided on the traction means, for example holes for fixing the stop with a screw, a pin or the like.
  • the fastening points are provided at distances from one another in the longitudinal direction on the traction means, the distances between the fastening points at least as large as a distance between two successive pivot axes of the chain links of the push link chain when the chain links are pushed into one another and at most as large as the distance between successive pivot axes of the chain links of the push link chain when the chain links are pulled apart is.
  • This embodiment of the invention enables the stop on the traction mechanism to be easily fixed depending on a number of chain links: If the push link chain has more or less one chain link, the stop is set closer to or further away from the roller shutter shaft on the traction mechanism, offset by one fastening point. With the attachment points for the stop on the traction mechanism, it is possible to fix the stop on the traction mechanism in such a way that the tensile force is transmitted by the traction mechanism and the chain links are relieved of the tensile force.
  • one embodiment of the invention provides an openable fastening ring which, surrounding the roller shutter shaft, can be fixed on the roller shutter shaft in a rotationally fixed manner.
  • the fastening ring has, for example, two half rings or more than two partial rings that are or can be connected to one another. When opened, the fastening ring can be placed radially on the roller shutter shaft and is preferably connected to the roller shutter shaft in a rotationally fixed manner by closing. It is conceivable to clamp the fastening ring so tightly around the roller shutter shaft that it is rotationally fixed with the roller shutter shaft due to friction.
  • the fastening ring can be fixed on the roller shutter shaft in a rotationally fixed manner by means of a form fit by means of a corresponding inner circumference, in particular a polygonal ring hole.
  • the first chain link, that is, the one connected to the roller shutter shaft, of the push link chain is or is - preferably articulated - connected to the fastening ring, so that the first chain link of the push link chain is connected to the roller shutter shaft via the fastening ring.
  • one embodiment of the invention provides that the last chain link of the push link chain can be connected to the roller shutter bar in a tensile manner by sliding in a longitudinal direction of a roller shutter bar of the roller curtain through positive locking transversely to the longitudinal direction of the roller shutter bar.
  • the longitudinal direction of the Roller shutter slats run transversely to the direction of movement and the longitudinal direction of the roller curtain.
  • the last chain link viewed in the longitudinal direction of the roller shutter slat, has the same profile as the roller shutter slat, which can be connected in an articulated manner to another roller shutter slat by moving it in the longitudinal direction.
  • This embodiment of the invention enables the push link chain to be easily connected to the roller curtain.
  • the subject of claim 10 is a roller shutter with anti-slide protection, as has been explained above.
  • the roller shutter 1 according to the invention shown has a polygonal, in the exemplary embodiment octagonal tube as the roller shutter shaft 2, a roller shutter 3 and a push link chain 4 which connects the roller shutter 3 to the roller shutter shaft 2.
  • the push link chain 4 forms part of the anti-slip protection 5 for the roller shutter 1 according to the invention.
  • the push link chain 4 has chain links 6, which are shown as individual parts in Figure 2 you can see.
  • the chain links 6 are articulated about pivot axes and are connected to one another so as to be movable in a longitudinal direction of the push link chain 4.
  • the pivot axes of the chain links 6 run parallel to the pivot axes of Roller shutter bars 7 of the roller curtain 3.
  • the chain links 6 have tabs 8 running in the longitudinal direction on their side edges, which have outwardly protruding snap pins 9 at their free ends.
  • the snap pins 9 are or are snapped into elongated holes 10 of a respective next chain link 6 by elastic deformation of the tabs 8, which also run in the longitudinal direction of the push link chain 4.
  • the elongated holes 10 are in turn arranged on the side edges of the chain links 6 and extend from an end of the chain links 6 remote from the snap pins 9 in the direction of the tabs 8.
  • the snap pins 9 snapped into the elongated holes 10 can be displaced in the elongated holes 10, whereby the chain links 6 are displaceable relative to one another by a length of the elongated holes 10 in the longitudinal direction of the push link chain 4.
  • the snap pins 9 and the elongated holes 10 form snap connectors 24 which connect the chain links 6 to one another in an articulated manner and movably in the longitudinal direction.
  • the chain links 6 have rectangular tubular, longitudinally extending formations, which form plugs 11 and which can be plugged into corresponding, rectangular holes of the next chain link 6, which form the couplings of the chain links 6, which are not visible in the drawing.
  • the plugs 11 of one chain link 6 each get into the coupling of a next chain link 6 and hold the chain links 6 non-pivotably in a straight line against one another, as shown in FIG Figure 1 you can see.
  • the anti-slip device 5 has two fastening rings 12 with a polygonal inner circumference adapted to the polygonal shape of the roller shutter shaft 2, which are rotationally fixed on the roller shutter shaft 2 due to a positive fit.
  • the fastening rings 12 have two half rings which are pivotably connected by brackets which are integral with the half rings and which form the film hinges 13. At the points opposite the film hinges 13, the fastening rings 12 are open, so that their half-rings can pivot apart and the fastening rings 12 can be placed on the roller shutter shaft 2. With screws 14 screwed into the fastening rings 12 tangentially at the open circumferential points, the fastening rings 12 are closed. By means of frictional engagement, the fastening rings 12 hold in the axial direction and, as explained, by means of positive engagement, in a rotationally fixed manner on the roller shutter shaft 2.
  • the fastening rings 12 On facing end faces, the fastening rings 12 have several axially parallel holes into which bearing pins 15 engage, which protrude laterally outward at an end of a first chain link 61 of the push link chain 4 remote from the snap pin 9, so that the first chain link 61 can pivot with the fastening rings 12 and via the fastening rings 12 about a pivot axis parallel to the roller shutter shaft 2 is connected to or outside of a circumference of the roller shutter shaft 12 so as to be pivotable with the latter.
  • a last chain link 16 of the push link chain 4 has, at an end facing the roller curtain 3, a hook-shaped profile as a sliding connection means 17 as seen in a longitudinal direction of the roller shutter slats 7.
  • the last chain link 16 of the sliding link chain 4 can be pushed in the longitudinal direction of the roller shutter slats 7 into a complementary hook-shaped profile on an upper longitudinal edge of a first or uppermost roller shutter slat 7 facing the roller shutter shaft 2 and thereby articulated to the roller shutter slat 7.
  • the last chain link 16 of the push link chain 4, like the roller shutter slats 7, is connected to one another by sliding in the longitudinal direction with the first or topmost roller shutter slat 7.
  • the longitudinal direction of the roller shutter slats 7 runs transversely to the longitudinal direction of the roller curtain 3, which is at the same time a direction of displacement of the roller curtain 3.
  • roller shutter slats 7 of the roller shutter 3 are guided displaceably at their two ends in grooves which form a sliding guide 18 for the roller shutter slats 7 and for the roller shutter 3.
  • the sliding guide 18 ends, as in FIG Figure 1 To see, at a distance from the roller shutter shaft 2.
  • To connect the roller curtain 3 with the roller shutter shaft 2 as many chain links 6 are connected by snapping the snap pins 9 into the elongated holes 10 of the chain links 6 as there is to bridge the distance between the sliding guide 18 and the Roller shutter shaft 2 is necessary.
  • the last chain link 16 of the push link chain 4 is pushed into the complementary hook-shaped profile of the first or uppermost roller shutter rod 7 by sliding it in the longitudinal direction of the roller shutter slats 7 and is thereby articulated to the first or uppermost roller shutter slat 7.
  • the other chain links 6 can already be connected to the last chain link 16 or can then be connected to the last chain link 16.
  • the two fastening rings 12 are arranged in a rotationally fixed and axially fixed manner on the roller shutter shaft 2, as described above, and the first chain link 61 is articulated to the two fastening rings 12 and articulated to the roller shutter shaft 2 via the fastening rings 12.
  • the other chain links 6 can be connected to the first chain link 61 when the first chain link 61 with the fastening rings 12 is attached to the roller shutter shaft 2, or the remaining chain links 6 are then connected to the first chain link 61.
  • a sheet metal strip i.e. a metal band, which can generally also be understood as a traction means 20
  • the traction means 20 is fixed on the last chain link 16 of the push link chain 4.
  • the traction means 20 is movable in the longitudinal direction of the push link chain 4 in the channel 19 of the push link chain 4.
  • the metal strip forming the traction means 20 has several holes, which are referred to here as fastening points 22 for a stop 23.
  • the holes forming the fastening points 22 are spaced apart in a longitudinal direction of the traction means 20, which corresponds to a distance between the snap pins 9 and the elongated holes 10 of the chain links 6.
  • the distance between the fastening points 22 is at most as great as a distance between the snap pins 9 of adjacent chain links 6 when the chain links 6 are pulled apart, and the distance between the fastening points 22 is at least as great as a distance between the snap pins 9 of adjacent chain links 6 when they are pushed into one another are.
  • the distance between the fastening points 22 for the stop 23 on the traction means 20 is at most as large as a maximum distance between the pivot axes of adjacent and extended chain links 6 and at least as large as a minimum distance between the pivot axes of adjacent and pushed together chain links 6.
  • the pivot axes of the chain links 6 are defined by the snap pins 9.
  • a screw is fastened with a nut as a stop 23. If the chain links 6 are pulled apart by winding the push link chain 4 onto the roller shutter shaft 2, the stop 23 comes into contact with the first chain link 61.
  • One of the fastening points 22 is selected which allows the chain links 6 to be pulled apart so far that the plug 11 extends the couplings are pulled out and the chain links 6 are pivotable against each other.
  • the fastening point 22 is selected such that a tensile force is not transmitted via the chain links 6, but rather via the traction means 20 from the first chain link 61 to the last chain link 16. There is a suitable fastening point 22 on the traction means 20 for a different number of chain links 16.
  • the roller shutter 3 can be wound onto the roller shutter shaft 2 via the push link chain 4, the end of the metal strip forming the traction means 20 protruding from the first chain link 6 under the push link chain 4 on the roller shutter shaft 2 and the push link chain 4 under the roller shutter 3 on the roller shutter shaft 2 be wound up.
  • roller shutters When the roller shutter 3 is unwound from the roller shutter shaft 2, the roller shutter slats 7 slide as in the case of a last or lowest roller shutter slat 7 on a window sill or the roller shutter 3 is held in another way against further shifting in its sliding guide 18 away from the roller shutter shaft 2 Roller shutters are common, together and also the chain links 6, 16, 61 of the push link chain 4 of the anti-slip protection 5 according to the invention are pushed together so that the plugs 11 of the chain links 6 get into the couplings of the chain links 6 and the chain links 6 can no longer be pivoted against each other.
  • the push link chain 4 now transmits a pushing force from the roller shutter shaft 2 to the first roller shutter slat 7, so that the roller curtain 3 cannot be shifted upwards or in the direction of the roller shutter shaft 2, i.e. cannot be pushed on, provided that the roller shutter shaft 2 is held in a rotationally fixed manner.

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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)
EP20199981.0A 2019-10-28 2020-10-05 Protection contre l'ouverture d'un volet roulant et volet roulant avec protection contre l'ouverture Pending EP3816390A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019128966.1A DE102019128966A1 (de) 2019-10-28 2019-10-28 Aufschiebeschutz für einen Rollladen und Rollladen mit Aufschiebeschutz

Publications (1)

Publication Number Publication Date
EP3816390A1 true EP3816390A1 (fr) 2021-05-05

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ID=72752285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20199981.0A Pending EP3816390A1 (fr) 2019-10-28 2020-10-05 Protection contre l'ouverture d'un volet roulant et volet roulant avec protection contre l'ouverture

Country Status (2)

Country Link
EP (1) EP3816390A1 (fr)
DE (1) DE102019128966A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530168A1 (fr) * 1991-08-23 1993-03-03 Dotesa Engineering Bv Dispositif de verrouillage automatique de volets mécaniques
EP0731247A2 (fr) 1995-03-09 1996-09-11 Johann Henkenjohann Dispositif de sécurité d'un volet enroulable autour d'un arbre
EP3269917A1 (fr) * 2016-07-13 2018-01-17 BUBENDORFF Société Anonyme Dispositif de verrouillage automatique d'un tablier d'un système d'occultation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0530168A1 (fr) * 1991-08-23 1993-03-03 Dotesa Engineering Bv Dispositif de verrouillage automatique de volets mécaniques
EP0731247A2 (fr) 1995-03-09 1996-09-11 Johann Henkenjohann Dispositif de sécurité d'un volet enroulable autour d'un arbre
EP3269917A1 (fr) * 2016-07-13 2018-01-17 BUBENDORFF Société Anonyme Dispositif de verrouillage automatique d'un tablier d'un système d'occultation

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DE102019128966A1 (de) 2021-04-29

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