EP1076152A1 - Brake device - Google Patents

Brake device Download PDF

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Publication number
EP1076152A1
EP1076152A1 EP00202397A EP00202397A EP1076152A1 EP 1076152 A1 EP1076152 A1 EP 1076152A1 EP 00202397 A EP00202397 A EP 00202397A EP 00202397 A EP00202397 A EP 00202397A EP 1076152 A1 EP1076152 A1 EP 1076152A1
Authority
EP
European Patent Office
Prior art keywords
roll
top door
brake
channel
brake device
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Withdrawn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
EP00202397A
Other languages
German (de)
English (en)
French (fr)
Inventor
Stig Redgart
Stefan Liberg
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.)
Kinnarps AB
Original Assignee
Kinnarps AB
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 Kinnarps AB filed Critical Kinnarps AB
Publication of EP1076152A1 publication Critical patent/EP1076152A1/en
Withdrawn legal-status Critical Current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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/115—Roller shutters specially adapted for furniture
    • 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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0615—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
    • E06B9/0638—Slats or panels
    • 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
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • 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
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
    • E06B9/0646—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position
    • E06B2009/0684—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position stored in a spiral like arrangement
    • 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
    • E06B2009/801—Locking arrangements
    • E06B2009/805—Locking arrangements located on or in the guides
    • 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
    • E06B2009/807—Brakes preventing fast screen movement

Definitions

  • the present invention relates to a brake device for a roll-top door whose side edges are each guided in their channel.
  • Roll-top or roll-front doors have long been employed, for example, in furniture primarily for office use. Other fields of application are cabinets for gas bottles at petrol stations and, in more robust constructions, even as garage doors.
  • the upwardly displaced section is taken care of in different ways.
  • this section may be led up along the inside of the top piece of the furniture in order thereafter to be led down along the inside of the rear piece of the furniture.
  • Another method is that the upwardly slid section of the roll-top door is led into channels on the inside of the side pieces of the furniture. In such instance, the channels are suitably substantially spiral shaped in shape.
  • the intention is to limit the speed of the roll-top door principally in the lower distance of its closing movement, at the same time as it must be easy to slide the roll-top door upwards.
  • the object forming the basis of the present invention will be attained if the brake device intimated by way of introduction is characterised in that a brake member is eccentrically disposed on a lever at each channel, so that the brake is self-applying when the roll-top door moves downwards.
  • Fig. 1 shows the brake device 5 in a cabinet 1 principally for office use, and provided with a roll-top door 2.
  • rails 15 are provided as a downward continuation of the grooves of the channel 3.
  • a brake device 5 is disposed close to the front side edge 16 of the cabinet 1 and in a curved transitional zone between the vertical rail and the upper and outer groove of the channel 3, the brake device consisting of a brake member 8 which is mounted on a lever 9.
  • the brake device 5 is pivotal between two extreme positions, of which the one, a braking or activated position, entails that the brake member 8 extends in over the channel in the transitional zone of its groove, while the second position entails that a roll-top door 2 may freely pass through the transitional zone.
  • the channel is provided with two arrest pins 19, 20 on either side of the lever 9 when this is located in a position between the extreme points.
  • the arrest pins 19 and 20 are shown most clearly in Fig. 3.
  • each of the channels 3 is substantially in the form of an oval spiral in a plane.
  • the channel 3 is designed as a groove in a substantially rectangular plate.
  • the rails 15 are connected to each respective channel 3 in the outermost turn of the spiral at reference numeral 24.
  • the innermost turn of the spiral has an end 17 and when the upper end of the roll-top door 2 has reached this point, the roll-top door 2 is fully retracted.
  • Fig. 2 shows the brake device 5 in close-up.
  • the major components of the device are the brake member 8 and the lever 9.
  • the brake member 8 is rotatably disposed on the lever 9.
  • the brake member 8 consists of a reel or a wheel with a central hole.
  • a stub shaft 12 which is fixed in the lever extends through the central hole and its outer end is threaded, while its inner end portion has a smooth circumferential surface and is of circular cross section so that it may serve as a bearing for the brake member or wheel 8. Between the two end portions, there is a transitional portion whose cross sectional area in the preferred embodiment is approximately oval.
  • the length of the inner portion of the stub shaft 12 substantially corresponds to the axial thickness of the brake member 8.
  • the washer 18 has a substantially oval hole through which extends the transitional portion of the stub shaft 12 of oval cross section. Consequently, the washer is not rotary in relation to the stub shaft, but is, to some extent, axially movable along it.
  • an operating device 10 in the form of a thumbwheel is provided on the outer, threaded portion of the stub shaft 12.
  • the operating device 10 has a central, interiorly threaded hole whose threads are disposed to mesh with the threads on the stub shaft 12.
  • a spring washer 11 is disposed between the operating device 10 and the washer 18, the spring washer 11 being preferably manufactured of metal.
  • the brake device 5 is symmetric throughout its entire longitudinal axis.
  • a screw 13 and a bushing 14 are disposed in the lever 9 on the longitudinal axis in such a manner that the mass centre of the entire brake device 5 lies on the same side of the screw 13 as the brake member 8, this within the permitted pivotal positions of the lever 9 as defined by the two arrest pins 19 and 20.
  • the screw 13 and the bushing 14 are disposed to pivotally secure the brake device 5 in the channel 3. Since the mass centre lies on the one side of the screw 13, an eccentric suspension will be obtained in the channel 3. This eccentricity is most clearly apparent in Figs. 3 and 4.
  • the lever 9 In order to amplify the action of the eccentricity on the position of the lever, i.e. its striving to pivot the lever with the brake member 8 into engagement with the inside of the roll-top door, the lever 9 has, in its lower region, a resilient tongue 22 which co-operates with a pin 23 disposed on the channel 3 (Fig. 3).
  • the cabinet 1 When the cabinet 1 is in use, it is often desirable to move the roll-top door 2 up or down. It is desirable if the upward movement takes place as rapidly as possible and that the downward movement is retarded in order to avoid the risk of pinch or crush injuries. Thus, it is reasonable that the brake is applied only on the downward movement of the roll-top door, and preferably only in the final distance of this movement. On an upward movement of the roll-top door and during the initial stage of the downward movement, the brake is not to be applied.
  • Fig. 3 shows the de-activated position of the brake device 5.
  • the brake member 8 is, in such instance, pivoted in a counterclockwise direction so far that the tongue 22 abuts against the pin 23 and does not extend, or extends but insignificantly, in over the channel 3, for which reason the roll-top door 2 may freely pass the brake member 8.
  • This position of the brake device 5 is typical in the upwardly directed movement of the roll-top door 2. If the brake device 5, because of its eccentric suspension, or the action of the resilient tongue 22, were to be pivoted clockwise, the upwardly moving roll-top door 2 which passes the brake member 8 in an upwardly directed movement and to the left in the Figure, will move the brake member 8 in the same direction on first contact.
  • the brake device 5 is, in such instance, forced to rotate a short distance counterclockwise until such time as the contact between the roll-top door 2 and the brake member 8 eases or ceases. The brake device 5 is thus returned to its de-activated state.
  • That portion 21 of the lever 9 which is opposed to the brake member 8 extends an insignificant distance in over the spiral portion of the channel 3.
  • the lever will, against the action of the resilient tongue 22, be pivoted somewhat in a counterclockwise direction so that the roll-top door 2 will continue to assist in retaining the brake device 5 in its de-activated state where the brake member 8 is wholly located outside the grooves of the channel and thus is not in engagement with the roll-top door.
  • the roll-top door 2 When the roll-top door 2 is once again drawn out from fully retracted position, the roll-top door 2 will, by contact with the lower portion 21 of the lever, prevent the brake device 5 from being activated and applied, as long as the first retracted portion of the roll-top door has not yet passed the lower portion of the lever 9. Until such time, the roll-top door 2 will, as was disclosed above, block the movement of the lever 9 in over the channel 3.
  • the brake device 5 is free to move in over the channel 3 and does so under the action of the resilient tongue 22 and the eccentric suspension of the lever.
  • the brake member 8 now comes into contact with the outwardly moving roll-top door 2, which now moves to the right and downwards in Fig. 4, the brake device is caused to rotate a distance clockwise and the application of the brake device becomes even harder.
  • the brake device 5 is thus self-applying.
  • the actual retardation of the roll-top door 2 takes place in two ways. Primarily, the brake member 8 urges the roll-top door against the edge of the channel 3. The retardation then takes place with the aid of the friction between the roll-top door 2 and the edge of the channel 3.
  • the other type of retardation is related to the retarding rotation of the brake member 8 around the stub shaft 12.
  • One precondition is that the brake member 8 does not slip to any appreciable degree in relation to the inside of the roll-top door 2.
  • the downward speed of the roll-top door 2 is then limited by the rotation of the brake member 8 in relation to the lever 9.
  • the lightness with which the brake member 8 rotates is adjusted in the manner described above with the aid of the operating device 10. The harder the operating device 10 is tightened, the more sluggishly will the brake member 8 rotate and the harder will the brake device be applied against the inside of the roll-top door.
  • the tightening will be, however, so hard that the brake member 8 slides or slips against the inside of the roll-top door 2 and the above-described retardation effect will be cancelled. In this case, the friction braking against the edge of the channel 3 will still function.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Braking Arrangements (AREA)
EP00202397A 1999-08-09 2000-07-07 Brake device Withdrawn EP1076152A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9902866A SE518540C2 (sv) 1999-08-09 1999-08-09 Bromsanordning för jalusidörr
SE9902866 1999-08-09

Publications (1)

Publication Number Publication Date
EP1076152A1 true EP1076152A1 (en) 2001-02-14

Family

ID=20416640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00202397A Withdrawn EP1076152A1 (en) 1999-08-09 2000-07-07 Brake device

Country Status (2)

Country Link
EP (1) EP1076152A1 (sv)
SE (1) SE518540C2 (sv)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306514A2 (de) * 2001-10-13 2003-05-02 REHAU AG + Co Bremsvorrichtung für Jalousiezüge
WO2006117042A1 (de) * 2005-04-29 2006-11-09 Rehau Ag + Co Schrankmöbel
CN1811124B (zh) * 2004-11-30 2010-07-28 三和控股株式会社 卷帘门的安全装置
DE202017107722U1 (de) * 2017-12-19 2019-03-21 Rehau Ag + Co Verschlussanordnung insbesondere für Schrankmöbel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125869A (en) * 1982-07-19 1984-03-14 Rotalac Plastics Shutter for a cabinet
GB2317415A (en) * 1996-09-19 1998-03-25 Martela Ag Roll-up door:brake

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125869A (en) * 1982-07-19 1984-03-14 Rotalac Plastics Shutter for a cabinet
GB2317415A (en) * 1996-09-19 1998-03-25 Martela Ag Roll-up door:brake

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1306514A2 (de) * 2001-10-13 2003-05-02 REHAU AG + Co Bremsvorrichtung für Jalousiezüge
EP1306514A3 (de) * 2001-10-13 2003-12-17 REHAU AG + Co Bremsvorrichtung für Jalousiezüge
CN1811124B (zh) * 2004-11-30 2010-07-28 三和控股株式会社 卷帘门的安全装置
WO2006117042A1 (de) * 2005-04-29 2006-11-09 Rehau Ag + Co Schrankmöbel
DE202017107722U1 (de) * 2017-12-19 2019-03-21 Rehau Ag + Co Verschlussanordnung insbesondere für Schrankmöbel

Also Published As

Publication number Publication date
SE9902866L (sv) 2001-02-10
SE518540C2 (sv) 2002-10-22
SE9902866D0 (sv) 1999-08-09

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