EP1945900B1 - Federhaltervorrichtung für rollläden und tore - Google Patents

Federhaltervorrichtung für rollläden und tore Download PDF

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Publication number
EP1945900B1
EP1945900B1 EP05813688A EP05813688A EP1945900B1 EP 1945900 B1 EP1945900 B1 EP 1945900B1 EP 05813688 A EP05813688 A EP 05813688A EP 05813688 A EP05813688 A EP 05813688A EP 1945900 B1 EP1945900 B1 EP 1945900B1
Authority
EP
European Patent Office
Prior art keywords
spring
holder device
disks
hole
winding shaft
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.)
Not-in-force
Application number
EP05813688A
Other languages
English (en)
French (fr)
Other versions
EP1945900A1 (de
Inventor
Mario Gnaccarini
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.)
Pastore SpA
Original Assignee
Pastore SpA
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 Pastore SpA filed Critical Pastore SpA
Publication of EP1945900A1 publication Critical patent/EP1945900A1/de
Application granted granted Critical
Publication of EP1945900B1 publication Critical patent/EP1945900B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60Spring drums operated only by closure members

Definitions

  • the present invention refers to a spring-holder device for roller shutters and gates.
  • roller shutters and gates can be enlived with winding systems composed of a fixed or rotating winding shaft; the winding system with fixed winding shaft is equipped with two or more, substantially cylindrical spring-holder boxes that are coaxial to the winding shaft and rotating thereon; function of these spring-holder boxes, on which a gate side is secured, is supporting and allowing to roll-up the gate around the winding shaft and containing the compensating spring of the spiral type, this latter one operating for counterbalancing, at least partially, the gate weight, returning, during the opening phase, the energy stored as torque during the closing phase, making thereby easier for an operator to move the gate.
  • the known spring-holder boxes are generally composed of a containing case comprising two supporting disks, mutually spaced by a set of metallic tabs constrained thereto, each one equipped in its central position with a hole adapted to allow the shaft to pass; next to such hole, moreover, cages are secured for containing rolling rollers, similar to roller bearings but with a rather lower mechanical accuracy, adapted to decrease the rolling friction between shaft and spring-holder box when actuating the roller gate.
  • All above-mentioned spring-holder box components are further universally manufactured with metallic material, typically a sheet, through a series of mechanical workings aimed to shear, drill and press it in order to finally come, after assembling, to the manufacture of the finished spring-holder box.
  • FR-A-2 627 801 discloses a spring-holder device according to the preamble of claim 1.
  • Object of the present invention is solving the above prior art problems by providing a spring-holder device for roller shutters and gates made of self-lubricating material that does not require the mechanical workings and the sliding rollers of the known spring-holder boxes.
  • Another object of the present invention is providing a spring-holder device for roller shutters and gates composed of elements that can be composed and assembled upon installation, making their packaging, transport and storage extremely more convenient, efficient and easy.
  • an object of the present invention is providing a spring-holder device for rolling shutters and gates that can be installed, removed or replaced without necessarily having to remove the winding shaft from its housings.
  • a further object of the present invention is providing a spring-holder device for rolling shutters and gates that can, without specific modifications or variations when manufacturing it, be easily customised to its laying on shafts with different diameters.
  • the spring-holder device 1 for rolling shutters and gates is composed of at least two gate-supporting disks 10a, 10b, that are substantially equal one another, each one equipped at its center with a through-hole 12 adapted to allow the passage of a winding shaft (not shown) and quick-connection securing means 14 of a plurality of spacers 16 adapted to equally connect and to suitably space the two disks 10a, 10b one from the other, in order to create between them an adequate space to house a compensating spring; this particular arrangement allows the spring-holder devide 1 according to the present invention to be able to be decomposed, and to be easily assembled when installing it.
  • Each disk 10a, 10b is further preferably equipped with at least three spokes 18 that are suitable mutually spaced and separated by hollow spaces, each one of the spokes 18 being adapted to connect the external perimeter edge of its own disk with the external circumferential wall of the hole 12, in order to stiffen the structure of the spring-holder device 1 and to discharge the forces induced by weight and actuation of the roller gate connected therewith; in the embodiment of the present invention shown in the Figures, it is possible to note that the spokes 18 are preferably five. Moreover, the above securing means 14 are preferably arranged in a portion of each spoke 18 next to the external circumference of its own disk 10a, 10b.
  • each spacer 16 is preferably equipped, on each of its two opposite ends, with restraining means adapted to engage the respective securing means 14 of the disks 10a, 10b.
  • each restraining means is composed of a supporting portion 16d, substantially orthogonal to the main development plane of the spacer 16, equipped with a supporting tooth 16b and with a securing tooth 16c, each one aimed to engage a respective slit 14b, 14c with which each securing means 14 of the disks 10a, 10b is equipped.
  • each supporting portion 16d of these latter ones with an external perimeter with a trapezoidal shape, adapted to be inserted into a housing 19 whose edge has a similar shape that is complementary thereto and that surrounds each securing means 14.
  • a longitudinal rib 16e that preferably joins together the two opposite supporting portions 16d.
  • one of the spacers 16 is adapted to allow securing one end of a compensating spring, whose other end is traditionally secured to the winding shaft.
  • the spring-holder device 1 is preferably made of a self-lubricating material, above all on the surface of the hole 12 in contact with the winding shaft, that, reducing the friction, allows avoiding the use of traditional sliding rollers, and of a lightweight material, still more preferably a plastic material that has the above characteristics and guarantees the due sturdiness and fatigue resistance.
  • a self-lubricating material above all on the surface of the hole 12 in contact with the winding shaft, that, reducing the friction, allows avoiding the use of traditional sliding rollers, and of a lightweight material, still more preferably a plastic material that has the above characteristics and guarantees the due sturdiness and fatigue resistance.
  • Delrin 100® manufactured by company DuPont of Nemours (France)
  • the adapter 70 is a bush characterised by an external circumference that is substantially equal to the one of the hole 12 and by an internal circumference that is substantially equal to the one of the winding shaft and is adapted to be concentrically inserted on the winding shaft and in the hole 12 and to be secured to this latter one through hooking means, preferably composed of at least one tab 72 that is inserted into at least one respective slit (not shown) obtained inside the hole 12 itself, thereby allowing to install the device 1 on a winding shaft whose diameter is less than the diameter of the hole 12, without necessarily having to manufacture the device 1 suitably for each winding shaft diameter.
  • each disk 10a, 10b is composed of two half-disks respectively 101a, 102a and 101b, 102b being kept mutually joined through securing means 80 such as at least one screw, one bolt or one pin: in such arrangement, it is obvious that it is possible to apply or remove the device 1 from a winding shaft without the need of having to free at least one end of the shaft.
  • the spring-holder device 1 is characterised by disks 10a, 10b having their respective diameters preferably included between 100 mm and 300 mm, still more preferably between 130 mm and 280 mm.
  • the spacers 16, instead than in plastic material, can be made of metallic material, for example steel, guaranteeing thereby still lower costs.
  • the device 1 has all the following properties:

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Springs (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Feeding And Guiding Record Carriers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (12)

  1. Federhaltevorrichtung (1) für Rollläden und Rolltüren, die genannte Federhaltevorrichtung (1) ist in Bauteile unterteilt, die genannte Federhaltevorrichtung (1) schließt mindestens zwei grundlegend gleiche Trägerscheiben (10a, 10b) eines Rollladens oder einer Rolltür ein, jede der genannten Scheiben (10a, 10b) ist in ihrer Mitte mit einer durchgehenden Bohrung (12), die dazu dient, den Durchgang einer festen Aufwickelwelle des genannten Rollladens oder Rolltür zu ermöglichen, sowie mit mehreren Distanzstücken (16) ausgestattet, die dazu dienen, spiegelbildlich die beiden genannten Scheiben (10a, 10b) miteinander zu verbinden und diese entsprechend voneinander zu distanzieren, die genannten Scheiben (10a, 10b) dienen dazu, sich um die genannte Aufwickelrolle zu drehen, und dadurch gekennzeichnet ist, dass:
    - die genannte Federhaltevorrichtung (1) aus leichtem und selbst schmierendem Material hergestellt wurde,
    - die genannte Federhaltevorrichtung (1) außerdem mit Befestigungsmitteln mit Schnellkupplung (14) der genannten Menge von Distanzstücken (16) für die genannten Scheiben (10a, 10b) ausgestattet ist,
    - jede der genannten Scheiben (10a, 10b) mit mehreren Scheibenarmen (18) ausgestattet ist, die jeweils dazu dienen, den Außenrand ihrer Scheibe (10a, 10b) mit der Außenwand der genannten durchgehenden Bohrung (12) zu verbinden.
    - die genannten Befestigungsmittel (14) in einem Teil jedes Scheibenarms (18) nahe beim Umfang jeder Scheibe (10a, 10b) angeordnet sind, und
    - die genannten Distanzstücke (16) aus Metall z. B. Stahl hergestellt wurden.
  2. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass die genannten Scheibenarme (18) drei sind, die in gleichem Abstand zueinander und senkrecht zum Umfang der Scheiben (10a, 10b) angeordnet sind.
  3. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass jedes der genannten Distanzstücke (16) auf jedem seiner beiden gegenüberliegenden Endstücke mit Spannvorrichtungen ausgestattet ist, die dazu dienen, mit den genannten entsprechenden Befestigungsmitteln (14) der genannten Scheiben (10a, 10b) in Spannung zu treten.
  4. Federhaltevorrichtung (1) gemäß Patentanspruch 3, die dadurch gekennzeichnet ist, dass die genannten Spannvorrichtungen aus einem Trägerteil (16d) bestehen, der grundlegend orthogonal zu einer Hauptentwicklungsfläche des genannten Distanzstückes (16) liegt und mit einem Trägerzahn (16b) und einem Befestigungszahn (16c) ausgestattet ist, die dazu dienen, entsprechend ein Rillenpaar (14b, 14c) in Spannung zu bringen, mit denen jedes der Befestigungsmittel (14) der genannten Scheiben (10a, 10b) ausgestattet ist.
  5. Federhaltevorrichtung (1) gemäß Patentanspruch 4, die dadurch gekennzeichnet ist, dass zwischen jedem Paar der genannten Rillen (14b, 14c) eine grundlegend "T-förmige" Wulst (17) angeordnet ist, die dazu dient, die Verbindung zwischen den genannten Rillen (14c) und einem entsprechend genannten Befestigungszahn (16c) zu verstärken.
  6. Federhaltevorrichtung (1) gemäß Patentanspruch 4, die dadurch gekennzeichnet ist, dass der genannte Trägerteil (16d) mit einem Außenrand ausgestattet ist, der grundlegend trapezförmig ist und dazu dient, in eine Verbindung (19) eingesetzt zu werden, die einen grundlegend trapezförmigen Rand hat, der jedes Befestigungsmittel (14) umgibt und den genannten Umfang des genannten Trägerteils (16d) vervollständigt.
  7. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass das genannte Distanzstück (16) mit einer Längsrippe (16e) ausgestattet ist, die dazu dient, zwei der genannten gegenüberliegenden Trägerteile (16d) zu verbinden.
  8. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass das genannte leichte und selbst schmierende Material ein Kunststoffmaterial ist.
  9. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass sie einen Adapter (70) enthält, der dazu dient, konzentrisch auf der genannten Aufwickelwelle und in der genannten durchgehenden Bohrung (12) eingesetzt und durch die Befestigungsmittel an der genannten Bohrung (12) befestigt zu werden
  10. Federhaltevorrichtung (1) gemäß Patentanspruch 9, die dadurch gekennzeichnet ist, dass die genannten Befestigungsmittel mindestens eine Zunge (72), die auf einer Außenwand des genannten Adapters (70) angeordnet ist, und mindestens eine entsprechende Spannungsrille innerhalb der genannten Bohrung (12) enthalten, die genannte Zunge (72) und die genannte Spannungsrille dienen dazu, gegenseitig in Spannung gebracht zu werden.
  11. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass jede der genannten Scheiben (10a, 10b) aus zwei Halbscheiben (101a, 102a, 101b, 102b) besteht.
  12. Federhaltevorrichtung (1) gemäß Patentanspruch 1, die dadurch gekennzeichnet ist, dass die genannten Scheiben (10a, 10b) einen Durchmesser haben, der vorzugsweise zwischen 100 mm und 300 mm und noch besser zwischen 130 mm und 280 mm liegt.
EP05813688A 2005-10-11 2005-10-11 Federhaltervorrichtung für rollläden und tore Not-in-force EP1945900B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2005/000591 WO2007043069A1 (en) 2005-10-11 2005-10-11 Spring-holder device for roller shutters and gates

Publications (2)

Publication Number Publication Date
EP1945900A1 EP1945900A1 (de) 2008-07-23
EP1945900B1 true EP1945900B1 (de) 2010-01-20

Family

ID=36579712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05813688A Not-in-force EP1945900B1 (de) 2005-10-11 2005-10-11 Federhaltervorrichtung für rollläden und tore

Country Status (4)

Country Link
EP (1) EP1945900B1 (de)
AT (1) ATE455930T1 (de)
DE (1) DE602005019117D1 (de)
WO (1) WO2007043069A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627801B1 (fr) * 1988-02-29 1992-02-07 Zurfluh Feller Sa Ets Perfectionnements apportes aux rideaux metalliques et aux grilles enroulables a equilibrage par ressorts plats
US6164428A (en) * 1999-08-23 2000-12-26 Joel Berman Associates, Inc. Wrap spring shade operator
AUPQ473399A0 (en) * 1999-12-16 2000-01-20 Neumann Steel Pty Limited A spool
FR2826688B1 (fr) * 2001-06-28 2004-01-23 Bmj Dispositif anti-chute pour fermeture a enroulement
DE602004006836D1 (de) * 2004-04-28 2007-07-19 Mario Gnaccarini Vorrichtung zur Befestigung einer Feder für Rolläden und Tore

Also Published As

Publication number Publication date
DE602005019117D1 (de) 2010-03-11
ATE455930T1 (de) 2010-02-15
WO2007043069A1 (en) 2007-04-19
EP1945900A1 (de) 2008-07-23

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