EP0018864A1 - Sicherung für ein begrenztes Abrollen eines flexiblen Materials und ihre Anwendung bei einem Rolladen - Google Patents

Sicherung für ein begrenztes Abrollen eines flexiblen Materials und ihre Anwendung bei einem Rolladen Download PDF

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Publication number
EP0018864A1
EP0018864A1 EP80400434A EP80400434A EP0018864A1 EP 0018864 A1 EP0018864 A1 EP 0018864A1 EP 80400434 A EP80400434 A EP 80400434A EP 80400434 A EP80400434 A EP 80400434A EP 0018864 A1 EP0018864 A1 EP 0018864A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
axis
stop
rings
rotation
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.)
Withdrawn
Application number
EP80400434A
Other languages
English (en)
French (fr)
Inventor
Jean-François Jacquelin
Jean-Paul Sabran
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.)
Manducher Dite Ets Ste
Original Assignee
Manducher Dite Ets Ste
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 Manducher Dite Ets Ste filed Critical Manducher Dite Ets Ste
Publication of EP0018864A1 publication Critical patent/EP0018864A1/de
Withdrawn legal-status Critical Current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
    • E06B9/56—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
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6872—Control using counters to determine shutter position
    • E06B2009/6881—Mechanical counters

Definitions

  • the present invention relates to a mechanism for blocking the rotation of a rotary element at the end of its travel and the application of this mechanism to a retractable rotary shutter of the type comprising a mandrel rotatably mounted at each of its ends on a fixed support by the intermediate an axis and a strip of flexible material attached to one of its ends to said mandrel and capable of being wound on the mandrel and unwound therefrom.
  • a shutter of this type can be used in many applications where it is necessary to hide and unmask at will a panel or an opening, and the invention relates in particular, although not exclusively, to a retractable rotary shutter making it possible to ensure the closing of a rear trunk of a motor vehicle.
  • the retractable flap can be arranged in the extension of a rear shelf which partially closes the trunk and is integrated into this shelf by providing thereon two projecting edges which receive the respective ends of the axes of the mandrel.
  • the flap When it is desired to release a maximum storage volume at the rear of the vehicle, the flap is placed in the position where the entire strip is wound on the mandrel, while to isolate the rear trunk from the passenger compartment of the vehicle, the strip is unwound substantially in the extension of the rear shelf and is fixed by its free end to appropriate means of attachment provided on the vehicle to retain it in the unrolled position.
  • intermediate hooking means for retaining the strip in a partially unwound position where it only closes part of the communication opening between the rear boot and the passenger compartment of the vehicle.
  • the strip which may for example be fabric, carpet, plastic or other suitable material, is called to be frequently wound and unwound.
  • forces are applied repeatedly to the connection between the strip and the mandrel at the end of the unwinding, which, in the long term, risks causing the deterioration of this connection and the separation of the strip from the mandrel.
  • the invention therefore aims to provide a mechanism for blocking the end of travel rotation of an element rotatably mounted on a fixed support by means of at least one axis.
  • such a mechanism comprises a series of rings freely mounted for rotation on said axis and each of which comprises a stop extending over a fraction of its circumference and projecting axially over a distance capable of allowing it to bear against a side where the opposite side in direct circumferential ion of a stop of a contiguous ring in one or the other of two relative angular positions of said rings between which these are freely movable in rotation relative to each other, as well as a ring drive stop and a ring stop stop carried respectively by the - said rotary element and by the fixed support and adapted to cooperate each with the stop of the ring which is adjacent to them.
  • the invention also relates to a retractable rotary shutter of the aforementioned type intended, in particular, to ensure the closing of a rear boot of a motor vehicle, and which comprises at at least one of its ends a mechanism as defined above, of which the rotary element consists of the mandrel, the number of rings and the circumferential length of the stops of this mechanism determining a linear stroke of the periphery of the mandrel less than the length of the strip, so as to block the rotation of the mandrel before the complete unwinding of the strip.
  • the flap comprises such a mechanism at each of the ends of the mandrel.
  • the retractable rotary shutter comprises a hollow cylindrical mandrel 1 on which the end of a strip 2, for example of fabric, is fixed by means of a number of metal clips 3.
  • One of the ends of the mandrel know the left end by looking at Fig. 1, is closed by an end piece 4 which is fixed to the mandrel 1 and on which protrudes outward an axis 5 integral in rotation with the mandrel and whose free end is received in rotation in a left fixed support 6 component bearing which can be constituted, for example, by a projecting edge of a rear shelf of a motor vehicle.
  • the end piece 4 is completed by a cylindrical skirt 7 which extends coaxially around the axis 5 and a part of a left mechanism 9 for locking the mandrel at the end of rotation which will be described more in detail in the following description.
  • the other end of the mandrel 1, namely the right end, looking at FIG. 1, is closed by a bearing 10 integral in rotation with the mandrel and crossed by an axis 11 comprising a part 12 of reduced diameter passing through the bearing 10 and extending partly outside relative to the latter and part 13 of larger diameter extending inside the mandrel 1.
  • the reduced diameter portion 12 of the shaft 11 is sliding rise in the bearing 10 and delimits with the part 13 of larger diameter a shoulder 14 capable of coming to bear against a part 15 forming the bearing surface of the bearing 10 to limit the displacement of the axis 11 out of the mandrel 1.
  • the axis 11 is biased in the direction which tends to cause it to come out of the mandrel by a spring 16 working in tension which is fixed at one of its ends in a notch 17 of the bearing 10 and at its other end in a diametrical groove 18 formed at the end of the part 13 of larger diameter of the axis 11.
  • the spring 16 is a helical spring wound around the part 13 of larger diameter of the shaft 11 and whose respective ends are positively fixed in the notch 17 and the groove 18 so that it can also work in torsion in order to urge the mandrel 1 in the wound position of the strip 2, this torsional work being made possible by the fact that the shaft 11 is immobilized in rotation at his extr free emitted outside the mandrel which is received in a fixed right support 19. This immobilization in rotation can be ensured by any suitable means, for example by means of flats provided at the end of the part 12 of the shaft 11 and in the corresponding support housing 1.9.
  • part 13 of larger diameter of the shaft 11 is not necessarily full and can be simply constituted, as shown in the drawing, by four longitudinal ribs provided on the axis 11 at 90 ° from each other. other, this part 13 of larger diameter having the simple function of guiding the spring 16 and delimiting the abovementioned shoulder 14.
  • the bearing 10 has in its outer part to the mandrel 1 a diametrical slot 20 elongated in the axial direction while the axis 11 has a diametrical hole 21 adapted to receive a pin 22 which, in position on the axis 11, locks in rotation the mandrel 1 relative to the axis 11 while being able to slide in the slot 20, the length of the latter being at least equal to the distance by which the axis 11 must be pushed inside the mandrel 1 to allow the establishment of the end of the part 12 of the axis 11 in the complementary housing of the support 19, while the pin 22 is made brittle so as to be able to be broken during the first traction exerted on the strip 2 for unwind it once the rotary shutter in place on the elements 6 and 19 of fixed support.
  • the bearing 10 also has a cylindrical tubular skirt 23 coaxial with the axis 11 and which partially surrounds a second mechanism 24 for locking the mandrel 1 at the end of rotation.
  • the locking mechanisms 9 and 24 are substantially identical and it will therefore be considered that the description which follows of the left mechanism 9 also applies to the right mechanism 24.
  • the mechanism 9 comprises a series of identical rings, four in number in the example shown, which are identified by the references 25a, 25b, 25c, and 25d in FIG. 1 and which are arranged in the above order between the end piece 4 and the fixed support element 6.
  • These rings are freely mounted for rotation on the axis 5 and each include a stop 26a, 26b, 26c, 26d respectively extending over a fraction of the circumference of the respective ring and projecting axially over a distance suitable for enabling it to bear against one side or the opposite side in circumferential direction of the stop of a contiguous ring in one or the other of two relative angular positions of the rings between which these are freely movable in rotation relative to one another. More specifically, as can be seen in FIG.
  • each stop has the form of a sector of circular crown coaxial with the ring which carries it and whose internal peripheral surface 27 has a diameter greater than the external peripheral surface 28 of the ring so as to ensure the free rotation of the rings relative to one another between the aforementioned relative positions where the stops of two contiguous rings are in abutment against one another.
  • the mechanism is completed by a stop 29 for entraining the rings provided on the end piece 4 (and on the bearing 10 for the mechanism 24) and by a stop 30 for stopping the rings carried by the element of fixed support 6 (and by the fixed support element 19 for the mechanism 24) and which are adapted to cooperate respectively with the stop 26a and the stop 26d.
  • the pin 22 is positioned in the diametral hole 21 to immobilize in rotation the mandrel 1 relative to the axis 11 and prevent any untimely unwinding of the strip 2 during the manipulations of the shutter.
  • the axis 5 is introduced into the corresponding orifice of the support element 6 forming a bearing and then the axis 11 is pushed back towards the inside of the mandrel 1 to align it with the another fixed support element 19 and, once the flats of the axis 11 and of the housing of the support 19 in the correct relative position, the spring 16 pushes the axis 11 back into the aforementioned housing and the shutter is ready to operate.
  • the mechanisms 9 and 24 therefore ensure the stop of the mandrel at the end of the unwinding for a predetermined distance which is easily calculable from the angle given to each sector-shaped stop, including the entrainment stop and the stop d 'stop which can have the same shape as the stops of the rings, and the number of rings used.
  • the locking mechanism according to the invention therefore allows to interrupt the unwinding of the rotary shutter in a position where the strip is wound on the mandrel over a sufficient length to avoid any deterioration of the connection of this strip with the mandrel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP80400434A 1979-04-18 1980-04-01 Sicherung für ein begrenztes Abrollen eines flexiblen Materials und ihre Anwendung bei einem Rolladen Withdrawn EP0018864A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7909736A FR2454510A1 (fr) 1979-04-18 1979-04-18 Mecanisme de blocage en fin de course d'un element rotatif et son application a un volet rotatif retractable
FR7909736 1979-04-18

Publications (1)

Publication Number Publication Date
EP0018864A1 true EP0018864A1 (de) 1980-11-12

Family

ID=9224426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400434A Withdrawn EP0018864A1 (de) 1979-04-18 1980-04-01 Sicherung für ein begrenztes Abrollen eines flexiblen Materials und ihre Anwendung bei einem Rolladen

Country Status (3)

Country Link
EP (1) EP0018864A1 (de)
ES (1) ES490527A0 (de)
FR (1) FR2454510A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003327A1 (fr) * 1983-02-24 1984-08-30 Hans Gross Dispositif d'entrainement pour stores a lamelles
GB2175848A (en) * 1985-05-31 1986-12-10 Procter & Gamble Non-occluding, liquid-impervious, composite backsheet and use thereof in an absorptive device
FR2591653A1 (fr) * 1985-12-18 1987-06-19 Ortopedia Gmbh Dispositif pour definir les butees dans le cas des jalousies et volets roulants et analogues
US6536502B2 (en) * 2001-06-05 2003-03-25 First Years Inc., The Adjustable width child safety barrier
US7178792B2 (en) 2002-04-19 2007-02-20 The First Years Inc. Child safety barriers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106073A (en) * 1934-10-27 1938-01-18 Mcfall Co Carey Shade roller plunger trunnion
FR1235431A (fr) * 1959-05-26 1960-07-08 Perrier Sa Dispositif d'arrêt de fin de course de volets roulants
FR2115745A5 (de) * 1970-11-30 1972-07-07 Gallot Aime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106073A (en) * 1934-10-27 1938-01-18 Mcfall Co Carey Shade roller plunger trunnion
FR1235431A (fr) * 1959-05-26 1960-07-08 Perrier Sa Dispositif d'arrêt de fin de course de volets roulants
FR2115745A5 (de) * 1970-11-30 1972-07-07 Gallot Aime

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003327A1 (fr) * 1983-02-24 1984-08-30 Hans Gross Dispositif d'entrainement pour stores a lamelles
WO1984003328A1 (fr) * 1983-02-24 1984-08-30 Hans Gross Dispositif d'entrainement pour stores a lamelles
GB2175848A (en) * 1985-05-31 1986-12-10 Procter & Gamble Non-occluding, liquid-impervious, composite backsheet and use thereof in an absorptive device
GB2175848B (en) * 1985-05-31 1989-07-12 Procter & Gamble Non-occluding, liquid-impervious, composite backsheet and use thereof in an absorptive device
FR2591653A1 (fr) * 1985-12-18 1987-06-19 Ortopedia Gmbh Dispositif pour definir les butees dans le cas des jalousies et volets roulants et analogues
US6536502B2 (en) * 2001-06-05 2003-03-25 First Years Inc., The Adjustable width child safety barrier
US7178792B2 (en) 2002-04-19 2007-02-20 The First Years Inc. Child safety barriers

Also Published As

Publication number Publication date
ES8100698A1 (es) 1980-12-01
ES490527A0 (es) 1980-12-01
FR2454510A1 (fr) 1980-11-14

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Inventor name: JACQUELIN, JEAN-FRANCOIS

Inventor name: SABRAN, JEAN-PAUL