EP0672814A1 - Dispositif télescopique pour arbre d'un volet roulant - Google Patents

Dispositif télescopique pour arbre d'un volet roulant Download PDF

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Publication number
EP0672814A1
EP0672814A1 EP94500168A EP94500168A EP0672814A1 EP 0672814 A1 EP0672814 A1 EP 0672814A1 EP 94500168 A EP94500168 A EP 94500168A EP 94500168 A EP94500168 A EP 94500168A EP 0672814 A1 EP0672814 A1 EP 0672814A1
Authority
EP
European Patent Office
Prior art keywords
spindle
interior
roller blind
arms
tube
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Withdrawn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
EP94500168A
Other languages
German (de)
English (en)
Inventor
Francisco Guillen Chico
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.)
Forjas del Vinalopo SL
Original Assignee
Forjas del Vinalopo SL
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 Forjas del Vinalopo SL filed Critical Forjas del Vinalopo SL
Publication of EP0672814A1 publication Critical patent/EP0672814A1/fr
Withdrawn legal-status Critical Current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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes

Definitions

  • the invention refers to a telescopic device for the extension of the spindle of a roller blind, placing the spindle between both ends and thus allowing a quick-mount and dismount, that incorporates two springs in the opposite ends of a hollow crossarm, closed at one end and pressed at the other end into the interior of another cross formed by four orthogonal flats with triangular section inscribed like fins within a cylinder, the external curved side of each triangle coinciding with a sector of the circle in which they are inscribed.
  • the first hollow cross rests on the closed base of a tube, opened at the opposite end, for the introduction and rotation of the bearing of the spindle, placed in the exterior, resting on the internal perimetric ribs of this tube.
  • the second piece that contains the first cross has an eight-angled external configuration, with the first part cylindrical and the second in cross, to allow the introduction of the whole piece after the pressure of the springs that separate them.
  • the telescopic systems for the extension of the spindle of a blind make it easy to place the spindle between both ends, allowing a quick-mount and dismount.
  • the proposed invention has two pieces, arranged so that the first one, cylindrical and irregular, can be introduced into the second one, prismatic and with eight-angled section.
  • the first one incorporates two springs in the interior, that separate the first bush from the second; by pressing on these springs it introduces completely.
  • the springs are inside a hollow cross with symmetric arms, in both disc-shaped ribs placed at the ends of the bottom of one of the arms, opposite to another one with lateral fingers and a slot in the interior of the external bush.
  • Both these supports of the springs and the cross rest on a disc inside the cross that constitutes the bottom of a tube, opened at the opposite end of these fingers.
  • the internal walls of the tube are covered by a series of small symmetric equidistant cylinders that are in the opposite side to the base of the crossarm and go beyond the middle of the tube, forming a perimetric support for a bearing inside the tube, except for a small rib that allows the support on the spindle of the roller blind.
  • This system with double spring and crossarm at the end, thanks to the distribution of weights along the crossarm and towards the bearing inside the interior bush and the symmetric arrangement of the springs, improves the functioning of this bearing, since the lateral pressure is more advisable for the useful life of the balls than the central pressure of a single spring that facilitates the lateral shifts, deteriorating the balls and making it difficult to handle.
  • the chamber of the spring transforms into a hollow crossarm, with a series of grills joined in pairs by the corners towards the interior of the piece and arranged all the groups orthogonal to one another.
  • this telescopic bush usually injected with plastic but that can be made of other materials, functions as an external bush, cylindrical and with a cover at one of the ends, while at the other end it comes out slightly.
  • the bush has two interior small ribs, arranged so that they serve as anchors for the springs.
  • this bush we introduce the other one, which is a telescopic extensor thanks to the pressure of the springs, which rest on a disc inside the bush and joined to it, which is placed at such a distance that, deducing the space for the bearing, the thickness of the disc, and the cover of the external bush, plus the length of the springs in their position of maximum contraction, it is possible to introduce this bush into the first one up to the external lips of both.
  • the invention consists of two pieces, arranged so that the first one, cylindrical (1) irregular, can be introduced into the second one, prismatic (2) and with eight-angled section.
  • the piece (1) incorporates two distance springs (3) inside a hollow cross (4) with symmetric arms, starting from ribs (5) at the ends of the bottom of one of the arms, opposite to another one with lateral fingers (6) and a slot (7) in the interior of the external bush (2).
  • the external piece With regard to the external piece, eight-angled, it is formed in interior circular section (12), up to a rib (13) that becomes a hollow crossarm (14), with four pairs of fins (15) forming a series of orthogonal triangles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
EP94500168A 1994-03-15 1994-10-28 Dispositif télescopique pour arbre d'un volet roulant Withdrawn EP0672814A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9400537 1994-03-15
ES9400537 1994-03-15

Publications (1)

Publication Number Publication Date
EP0672814A1 true EP0672814A1 (fr) 1995-09-20

Family

ID=8285559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94500168A Withdrawn EP0672814A1 (fr) 1994-03-15 1994-10-28 Dispositif télescopique pour arbre d'un volet roulant

Country Status (1)

Country Link
EP (1) EP0672814A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791718A3 (fr) * 1996-02-21 1999-05-26 Forjas Del Vinalopo, S.L. Douille télescopique pour arbres de store à rouleau
GB2339820A (en) * 1998-07-20 2000-02-09 Hunter Douglas Ind Bv End plug assembly for use in a roller
US7677294B2 (en) 2006-01-10 2010-03-16 Hunter Douglas Industries Bv End mounting for supporting a roller

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2029267A (en) * 1967-04-13 1968-10-17 Breneman, Inc Terminal for shade roller length adjustment
DE2626568A1 (de) * 1975-06-16 1977-01-13 Newell Co Inc Springrollo
US4009745A (en) * 1975-05-02 1977-03-01 Breneman, Inc. Window shade support roller and method of assembling
GB2051936A (en) * 1979-06-29 1981-01-21 Sandll C Telescopic Roller for Roller Blinds
AU6341080A (en) * 1979-10-15 1981-10-01 Woodsun Products Pty. Ltd. Roller blind mechanism
US4883395A (en) * 1987-01-16 1989-11-28 Space Display Systems Pty. Ltd. Connecting devices for structural elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2029267A (en) * 1967-04-13 1968-10-17 Breneman, Inc Terminal for shade roller length adjustment
US4009745A (en) * 1975-05-02 1977-03-01 Breneman, Inc. Window shade support roller and method of assembling
DE2626568A1 (de) * 1975-06-16 1977-01-13 Newell Co Inc Springrollo
GB2051936A (en) * 1979-06-29 1981-01-21 Sandll C Telescopic Roller for Roller Blinds
AU6341080A (en) * 1979-10-15 1981-10-01 Woodsun Products Pty. Ltd. Roller blind mechanism
US4883395A (en) * 1987-01-16 1989-11-28 Space Display Systems Pty. Ltd. Connecting devices for structural elements

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791718A3 (fr) * 1996-02-21 1999-05-26 Forjas Del Vinalopo, S.L. Douille télescopique pour arbres de store à rouleau
GB2339820A (en) * 1998-07-20 2000-02-09 Hunter Douglas Ind Bv End plug assembly for use in a roller
GB2339820B (en) * 1998-07-20 2002-08-28 Hunter Douglas Ind Bv End plug assembly
US7677294B2 (en) 2006-01-10 2010-03-16 Hunter Douglas Industries Bv End mounting for supporting a roller

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