EP0439027A1 - Dispositif pour volets roulants - Google Patents

Dispositif pour volets roulants Download PDF

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Publication number
EP0439027A1
EP0439027A1 EP91100287A EP91100287A EP0439027A1 EP 0439027 A1 EP0439027 A1 EP 0439027A1 EP 91100287 A EP91100287 A EP 91100287A EP 91100287 A EP91100287 A EP 91100287A EP 0439027 A1 EP0439027 A1 EP 0439027A1
Authority
EP
European Patent Office
Prior art keywords
roller shutter
wheels
shutter shaft
shaft
torsional force
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.)
Granted
Application number
EP91100287A
Other languages
German (de)
English (en)
Other versions
EP0439027B1 (fr
Inventor
Max Dünner
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.)
Lista AG
Original Assignee
Lista AG
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 Lista AG filed Critical Lista AG
Priority to AT91100287T priority Critical patent/ATE82795T1/de
Publication of EP0439027A1 publication Critical patent/EP0439027A1/fr
Application granted granted Critical
Publication of EP0439027B1 publication Critical patent/EP0439027B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the invention relates to a device on a manually liftable and lowerable roller shutter for a cabinet front or other opening, the roller shutter having movably connected strips which are guided during lifting and lowering in wheels provided with driving means of a roller shutter shaft.
  • Roller shutters are used as practical locking devices in many places, be it on furniture whose front can be opened and closed quickly, or for openings on windows, passages and the like.
  • the main advantage of the roller shutter is that it is easy to handle and can also be conveniently accommodated in a non-distracting place.
  • roller shutter As long as the roller shutter does not exceed a certain size, its weight plays a subordinate role in lifting and lowering. However, this changes as soon as the roller shutter reaches a certain size, be it that it has an opening of large width or that it should close a large opening. With such roller shutters, the weight of the roller shutter can be dangerous if it is accidentally released and it slams at great speed. Although this property of the roller shutter is known and there has been no lack of attempts to use attached devices to ensure that the roller shutter can be held in any opening position, these solutions have proven to be impractical or complex.
  • the invention comes in, which is based on the object of further developing a device of the type described at the outset in such a way that the roller shutter can be stopped in any open position and then remains in this position. Furthermore, the device should be accommodated in the area of the roller shutter shaft without taking up more space, and should also be independent of the width and height of the roller shutter always the same type of device can be used unchanged.
  • the helical spring preferably has a double-conical contour, the turns in the center of the helical spring having a larger diameter and merging with the ends of the helical spring into turns with a smaller diameter. This ensures that when the springs are tensioned with the inner wheel, the spring turns in the middle become smaller and the spring takes on a more and more cylindrical shape, and it is avoided that individual spring turns overlap, as is the case when using an untensioned cylindrical coil spring Case can be.
  • one end of the helical spring can be held in a bracket which is fixed in position in the vicinity of a bearing of the roller shutter shaft, and the two circular-profile-shaped parts assigned to the inner wheels can be integrally formed with one another as a single circular-profile-shaped part, and in addition, the two coil springs can be given such a torsional force by turning the corresponding inner wheel that the weight of the roller shutter is almost balanced in all roller shutter positions.
  • a roller shutter shaft is shown, the one-piece core shaft 1 in two bearings 2, 3 on a stationary part, for. B. is mounted on a wall 4, 5.
  • the core shaft 1 has a polygonal profile, for example a square or hexagonal profile.
  • two outer wheels 6, 7 are fixedly arranged, while between the wheels 6, 7 two inner wheels 8, 9 are rotatably but axially displaceably mounted.
  • the core shaft 1 has a round profile section 16, the diameter of which corresponds to the inscribed circle of the polygon profile.
  • the wheels 6-9 have driver recesses 17, see FIG. 2.
  • a helical spring 10 is mounted, the spring windings of which comprise the core shaft 1.
  • the one end 11 in the vicinity of the hub portion 23 of the outer wheels 6, 7 of the coil spring 10 attached to a bracket 12 which is fixed to one of the walls 4, 5.
  • the other end 13 of the coil spring 10 is fixedly connected to a hub 14, 15 of the corresponding inner wheel 8, 9.
  • the axial displacement of the inner wheels 8, 9 in the circular section 16 can easily be achieved in view of the relatively large axial elasticity of the coil springs 10.
  • the inner wheels can be rotated in both directions of rotation, whereby a "positive” or “negative” torsional force is forced on the spring.
  • the strips 18 move over the wheels 6-9 arranged on the core shaft 1, of which the external wheel 6 is visible in FIG. 2, when the roller shutter is being raised or lowered.
  • the strips 18 are provided with drivers 19 which are in corresponding recesses 17 of the wheels 6-9 protrude and thus ensure a positive fit between the roller shutter and the wheels.
  • FIG. 2 also shows the arrangement of the roller shutter in a piece of furniture 20, for example a drawer cabinet.
  • the roller shutter When the roller shutter is lifted, it is guided along the ceiling of the furniture 20 via a rear guide 21, and it then runs vertically along the rear wall 22 of the furniture 20.
  • This vertical part of the roller shutter exerts a counterforce with its weight against that of the front part of the Roller shutter generated power.
  • this counterforce acts only as long as a part of the roller shutter extends over the guide 21 of the rear wall 22 of the furniture 20. But even in this case it is possible for the entire stroke of the Roller shutter with the torsional forces set on the springs 10 to largely compensate for the forces resulting from the weight of the various roller shutter sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Percussion Or Vibration Massage (AREA)
EP91100287A 1990-01-25 1991-01-10 Dispositif pour volets roulants Expired - Lifetime EP0439027B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91100287T ATE82795T1 (de) 1990-01-25 1991-01-10 Einrichtung an einem rolladen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH23690 1990-01-25
CH236/90 1990-01-25

Publications (2)

Publication Number Publication Date
EP0439027A1 true EP0439027A1 (fr) 1991-07-31
EP0439027B1 EP0439027B1 (fr) 1992-11-25

Family

ID=4182395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91100287A Expired - Lifetime EP0439027B1 (fr) 1990-01-25 1991-01-10 Dispositif pour volets roulants

Country Status (4)

Country Link
EP (1) EP0439027B1 (fr)
JP (1) JPH04221187A (fr)
AT (1) ATE82795T1 (fr)
DE (1) DE59100011D1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE826251C (de) * 1949-11-15 1951-12-27 Wilhelm Stiegler Federgehaeuse fuer die Rollachse von Rolladen
FR2542364A1 (fr) * 1983-03-08 1984-09-14 Imbac Spa Dispositif de manoeuvre a tirage direct de stores enroulables, comportant un ressort de compensation
WO1985000633A1 (fr) * 1983-07-20 1985-02-14 P.V.B.A. Helioscreen Dispositif tendeur destine a permettre l'enroulement et le deroulement d'un element de protection
EP0210381A2 (fr) * 1985-07-29 1987-02-04 Toso Kabushiki Kaisha (Toso Company, Limited) Dispositif de positionnement de rideau pour un store à rouleau

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE826251C (de) * 1949-11-15 1951-12-27 Wilhelm Stiegler Federgehaeuse fuer die Rollachse von Rolladen
FR2542364A1 (fr) * 1983-03-08 1984-09-14 Imbac Spa Dispositif de manoeuvre a tirage direct de stores enroulables, comportant un ressort de compensation
WO1985000633A1 (fr) * 1983-07-20 1985-02-14 P.V.B.A. Helioscreen Dispositif tendeur destine a permettre l'enroulement et le deroulement d'un element de protection
EP0210381A2 (fr) * 1985-07-29 1987-02-04 Toso Kabushiki Kaisha (Toso Company, Limited) Dispositif de positionnement de rideau pour un store à rouleau

Also Published As

Publication number Publication date
EP0439027B1 (fr) 1992-11-25
DE59100011D1 (de) 1993-01-07
JPH04221187A (ja) 1992-08-11
ATE82795T1 (de) 1992-12-15

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