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
  • E06B9/56—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
• • 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 invention relates to an automatic safety latch, for roller shutter having an articulated blade apron adapted to be wound around a winding tube of regular polygonal cross section, in particular octagonal, actuated by a maneuvering system.
• the lock comprises at least one tube link fixed to the winding tube and an apron link to which is articulated the upper blade of the apron, the links tube and apron being connected by a hinge system capable of causing an arching of the links when the apron is fully deployed, the winding tube being stopped in rotation by the operating system.
• An automatic security lock of this type is known, for example from EP-O 937 859 B1 in the name of the plaintiff company.
• Such an automatic lock ensures both the blocking of the deck when it is in the low position, and prevents an ascent of the deck by an external action, such as an attempted break-in.
• the raising of the deck is of course possible using the maneuvering system.
• the diameter of the winding tubes varies, in particular as a function of the length of the deck deployed, which generally requires to provide accessory mounting and assembly parts adapted to each tube diameter.
• FR 2 778 692 A discloses a safety lock of the type defined above, wherein the tube link has an inner dihedral surface having two flat faces which form an angle equal to that formed between two successive sides of a cross section of the tube, and at least one open clamping ring adapted to surround the tube, comprising at each of its ends a hooking means.
• the lock is relatively thick, in particular because of radially inward extensions for the attachment of the clamping ring, which prevents the tube link from being applied against the tube. The winding capacity in the trunk is thus limited.
• the invention aims, above all, to reduce the number of accessory parts necessary for the establishment of an automatic safety lock by making such a multi-purpose lock to different diameters of tubes.
• the invention also aims to provide a safety lock whose manufacture remains simple, setting up is fast with the possibility of adjustment. The size of the lock must be reduced, so as not to diminish substantially the winding capacity in the trunk.
• an automatic safety lock for roller shutter comprising an articulated blade apron adapted to be wound around a winding tube of regular polygonal cross-section, in particular octagonal, actuated by a maneuvering system, the latch comprising at least one tube link fixed to the winding tube and an apron link to which is articulated the upper deck blade, the tube and apron links being connected by a hinge system capable of causing the links to bend when the deck is completely deployed, the winding tube being stopped in rotation by the operating system, in which:
• the tube link has an inner dihedral surface having two flat faces which form an angle equal to that formed between two successive sides of a straight section of the tube, and at least one open clamping ring capable of surrounding the tube; having at each of its ends a hooking means, is characterized in that:
• the tube link rests on two consecutive faces of the tube, whatever its diameter, the clamping ring is adjustable
• the tube link has, on each side, an extension projecting laterally in the direction of the edge of the dihedral having a hooking means complementary to that provided at the end of the open clamping ring which does not take place in thickness to keep a good winding capacity in the trunk.
• At least one of the faces of the dihedral of the tube link comprises at least one lug adapted to be housed in a perforation of the winding tube.
• a clamping ring is provided on each side of the link.
• Each lateral extension of the tube link may comprise a housing opening in the peripheral direction of the tube, and one end of the clamping ring has on at least one of its faces a notched shape provided to cooperate with a complementary notched shape provided on the least one of the inner walls of the housing to allow an adjustable hooking of the end of the clamping ring.
• the ring has at one end a hook adapted to hook to a bar of the tube link and, at its other end, a tongue provided with a notched form of the type "fir tail” to fit into a complementary shape of the housing of the tube link.
• the housing is open on one side in a direction parallel to the edge of the dihedron so that the end of the ring can be disengaged by a displacement parallel to the edge of the dihedron.
• At least one link may comprise at least one spring tongue acting on the next link to push it into a stable position at the time of unwinding, at the end of descent.
• An angular wedge comprising a bar extending over the entire length of the links, can be interposed between the bearing faces of the links to limit the opening between two links.
• the angular wedge may comprise, at each end of the bar, an orthogonal ear to the direction of the bar to frame lugs of the links and to be traversed by an axis of articulation of the links.
• the invention also relates to a shutter equipped with an automatic safety lock as defined above for connecting the upper blade of the deck to the winding tube.
• Fig. 1 is a partial vertical schematic section of a roller shutter equipped with an automatic safety lock according to the invention.
• Fig. 2 is a partial schematic vertical section on a larger scale of a tube link according to the invention and the region of the tube against which the link is plated.
• Fig. 3 is a perspective view of the safety lock and two sections of tubes of different diameters.
• Fig. 4 is an elevational view of a clamping ring.
• Fig. 5 is a perspective view from above of an octagonal tube portion equipped with a security lock according to the invention.
• Fig. 6 is a perspective view from above, at another angle and on a smaller scale than in FIG. 5, octagonal tube equipped at one end of a lock according to the invention.
• Fig. 7 shows, in perspective, the octagonal tube and the bolt in the bracing position
• Fig. 8 is a perspective view of an angular wedge mounted on an articulation between the tube link and an intermediate link.
• an automatic safety latch A for a roller shutter comprising an apron T with articulated blades 1.
• the apron T is adapted to be wound around a winding tube 2 of regular polygonal cross-section, in particular octagonal, operated by a maneuvering system (not shown).
• the operating system motorized or manual, rotates the tube 2 when the operating system is stopped.
• the lock A comprises at least one link 3 attached to the winding tube 2 and an apron link 4 to which is articulated the upper blade 1 of the deck.
• the links tube and apron are connected by a hinge system B which comprises, according to the example of FIG. 1, an intermediate link 5.
• the hinge system B is able to cause a jamming of the links 3, 4, 5 when the apron T is fully deployed and the winding tube 2 is stopped in rotation by the system maneuvering. This bracing makes it possible, in particular, to prevent unauthorized raising of the apron from the outside, for example in view of a break-in.
• the apron T is guided in vertical slides 6 provided at their upper end with a tulip 7 opening towards the tube 2.
• This tube is rotatably supported at each end by a cheek 8 which can close a chest having a front wall vertical 9 substantially to the right of the slide 6.
• the automatic lock A according to the invention is intended to be adaptable, without modification or with very few modifications, to the various octagonal tubes on the market, the diameter of which can generally vary from 10 mm to 10 mm over a range from 40 mm to 70 mm. mm.
• the diameter of an octagonal tube is that of the circle circumscribing the octagonal section, or more generally polygonal regular.
• the tube link 3 has an inner dihedral surface 10 (FIG 2) having two flat faces 10a, 10b which form an angle ⁇ equal to that formed between two successive sides 11a, 11b of a cross section of the tube 2. In the case of an octagonal tube, the angle ⁇ is equal to 135 ° regardless of the diameter of the tube.
• the edge of the dihedron 10 is superimposed on an edge of the tube 2.
• the tube link 3 is supported on two consecutive faces 11a, 11b of the tube.
• the attachment and articulation of the next link, namely the intermediate link 5 in the example are always in a good position, pressed closer to the tube 2 so as not to penalize the winding. At least one of the faces of the dihedron, for example the face 10a in the example of FIG.
• the width of the faces of the dihedron 10 that is to say the dimension of the faces in a direction orthogonal to the edge of the dihedron, is smaller than the width of the faces of the winding tube 2 of smaller diameter.
• Fixing the link 3 to the tube 2 is provided by at least one clamping means S (Fig.4-6) adjustable to surround the tube.
• a clamping means S is provided on each side of the tube link 3.
• the clamping means S is advantageously constituted by an open ring 13 (FIG 4) made of plastics material.
• the ends of the ring 13 can be spaced by elastic deformation so that the ring 13 is positioned on the tube 2 without having to thread it from one end of the tube.
• the ring 13 comprises, radially inwards, lugs 13a for bearing against the faces of the tube 2.
• a hook 14 is provided at one end of the ring 13.
• the tube link 3 comprises on each side a lateral projecting portion comprising a substantially rectangular closed-contoured light 15, limited on the side of the intermediate link 5 by a bar 16 parallel to the direction of the edge of the dihedron.
• the light 15 is provided to receive the hook 14 which is hooked on the bar 16.
• the other end of the ring 13 comprises a tongue 17 provided, at least on its face turned radially inwardly, a succession of notches 18 of the type "tail of fir" suitable to come and engage in complementary notches 18a provided in a housing 19 (FIG 5) delimited by walls protruding from each side of the tube link 3, in opposition to the light 15.
• the housing 19 is open laterally, that is to say in a direction parallel to the edge of the dihedron, the lower face of the housing being provided with complementary notches 18a.
• the upper face of the housing 19 is smooth and is applied against the smooth upper face of the tongue 17.
• the upper wall 19a of the housing 19 exerts a pressure on the tongue 17 to properly apply the notches 18 of the tongue in those 18a housing.
• the lateral opening of the housing 19 makes it possible to engage and disengage the tongue 17 by a translation parallel to the direction of the ridges of the tube.
• the rings 13 are thus adjustable, that is to say that their diameter, and their circumference can be modified according to the tube considered.
• the rings 13 are adapted to each range of tube diameters, but the tube link 3 remains the same.
• the intermediate link 5 preferably has a lower face, facing the winding tube, in the form of dihedron 20 having the same angle as the dihedral 10 of the link 3.
• the articulation between the links 3 and 5 is made at using ears such as 21 (Fig.3) provided on the longitudinal edges of each link, fit to come face to each other, so that a hinge pin 22 can be engaged in the circular orifices of these lugs to ensure the articulated connection between the links 3 and 5.
• the pivoting of the intermediate link 5 in a direction away from the tube 2 is limited by the abutment of the longitudinal edge 5a (FIG. link 5 against the corresponding longitudinal edge 3a of the link 3, or against the longitudinal edge of an angular wedge 23 interposed between the opposite edges of the links 3 and 5.
• the angular wedge 23 (FIG 5) comprises a longitudinal bar 23a, preferably trapezoidal section with large base facing outwards, arranged between the facing edges 3a, 5a of the links.
• the bar 23a extends along the entire length of the links parallel to the edge of the dihedron 10.
• ears 24 At both ends of the wedge 23 are provided, in a plane orthogonal to the longitudinal direction of the bar, ears 24 with clean circular holes to frame the ears 21 (Fig.3).
• the orifices of the lugs 21 and 24 are facing each other and can be traversed by the hinge pin 22.
• the presence of the wedge 23 limits the pivoting of the link 5 in the direction away from the tube 2.
• the articulation between the intermediate link 5 and the deck link 4 is made in the same way as between the links 3 and 5 using conjugate ears provided at each end of the links, these ears having openings adapted to be traversed by an axis hinge.
• An angular wedge similar to the wedge 23 can be placed between the links 5 and 4 to limit the angular deflection.
• At least one spring tongue 25 (Fig.6) is provided on one side of a link such as the link intermediate 5.
• This tongue 25, secured to one end of the link 5, is engaged at its other end, being constrained, under a lateral projection 26 of the next link, namely the deck link 4 in the example.
• the tongue 25 tends to lift the deck link 4 to bring it to bear by its longitudinal edge against the adjacent edge of the intermediate link 5.
• the deck link 4 comprises at its end remote from the intermediate link 5, a hook 27 for hingably attaching the complementary edge of the upper blade 1 of the deck.
• the tongue 25 is in the stressed position when the links are wound on the tube 2 and thus pushes the links such as 4 in their stable position at the time of unwinding at the end of descent.
• the link tube 3 is applied against two successive faces of the tube 2 by engaging the one or the lugs 12 in perforations of the tube 2.
• a ring 13 is installed around the tube 2 at each end of the link 3, the lugs 13a of the ring taking bearing against the faces of the tube 2.
• the hook 14 of the ring is engaged in the slot 15 to hook the bar 16.
• the tongue 17, at the other end of the ring 13, is engaged in the housing 19 so that the notches of this tongue cling to the notches provided in the housing, exerting a tightening of the ring 13 around the tube.
• a self-adjusting, self-locking system is created around the tube 2. This system eliminates the need for a precise tolerance on the diameter of the tube and allows an assembly without specific tools, resulting in quick assembly.
• the intermediate links 5 have a custom length to the section of the tube 2, so that the articulation between the intermediate link 5 and the deck link 4 is in the middle of a face of the tube.
• the projecting angle of two contiguous faces of the tube is therefore positioned between the joints present at each end of the intermediate link, precisely hollowed out at this point, thus making it possible to optimally optimize the winding capacity. blades in the trunk.
• the aim is that the links of the lock do not exceed the outer diameter of the ring 13.
• the lock A is positioned in the roller shutter box between the upper blade 1 of the deck and the winding tube 2.
• the blades come to bear vertical against each other, and the lock A creates a rigid link by buttressing links 3, 4, 5 between them.
• the links unfold with respect to one another to an abutment position defined by the coming into contact of the edges 3a, 5a with each other or with the angular wedge 23.
• the articulation axes such as the hinge pin 22a (Fig.1) between the intermediate link 5 and the deck link 4, are below an alignment line D shown in phantom in FIG. 1.
• the line D is tangent to the tube 2 and passes through the joint G between the deck link 4 and the upper blade 1 of the deck.
• the links 4, 5, 3 remain in abutment against each other by bracing themselves and preventing the ascent of the apron.
• the force oriented on the straight line D has a horizontal component which has a tendency to press the upper blade 1 against the vertical wall of the slide 6 or of the tulip 7 orthogonal to the plane of FIG. 1, or possibly against the front wall 9 of the trunk if the blade 1 substantially exceeds the top of the tulip 7.
• lock A For a good adaptation to the different sizes of boxes, several lengths of lock A can be defined.
• the lock A to function properly must block the deck T just above the tulip 7.
• the hinge G between the deck link and the upper blade 1 of the deck is Just at the top exit of the tulip.
• the action line D1 is inclined at an angle of 45 ° to the horizontal.
• the joint G can be located at a level hO (FIG.
• the angular wedge 23 can be put in place directly by the fitter or installer of the trunk to limit the number of references of parts to be controlled, or to better adjust on site the length of the lock.
• Another possibility to reduce the opening angle between the tube link and the intermediate link would be to create an angular variant of the tube link or the intermediate link in order to have the right model directly to the trunk mounting station.

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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)

Applications Claiming Priority (2)

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Family Cites Families (6)

• 2007
  • 2007-06-27 FR FR0704615A patent/FR2918101B1/fr not_active Expired - Fee Related
• 2008
  • 2008-06-23 EP EP08826530.1A patent/EP2158375B1/de active Active
  • 2008-06-23 WO PCT/FR2008/000882 patent/WO2009013414A2/fr active Application Filing

Non-Patent Citations (1)

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