EP0774561A2 - Dispositif de sécurité pour un volet à rouleau ou une porte enroulable - Google Patents

Dispositif de sécurité pour un volet à rouleau ou une porte enroulable Download PDF

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Publication number
EP0774561A2
EP0774561A2 EP96103861A EP96103861A EP0774561A2 EP 0774561 A2 EP0774561 A2 EP 0774561A2 EP 96103861 A EP96103861 A EP 96103861A EP 96103861 A EP96103861 A EP 96103861A EP 0774561 A2 EP0774561 A2 EP 0774561A2
Authority
EP
European Patent Office
Prior art keywords
shaft
roller shutter
safety device
recess
locking ring
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Withdrawn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
EP96103861A
Other languages
German (de)
English (en)
Other versions
EP0774561A3 (fr
Inventor
Heinz Ruprechter
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.)
Wiral Rolladenfertigungs- u Vertriebsgesellschaft mbH
Original Assignee
Wiral Rolladenfertigungs- u Vertriebsgesellschaft mbH
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 Wiral Rolladenfertigungs- u Vertriebsgesellschaft mbH filed Critical Wiral Rolladenfertigungs- u Vertriebsgesellschaft mbH
Priority to DE29624413U priority Critical patent/DE29624413U1/de
Publication of EP0774561A2 publication Critical patent/EP0774561A2/fr
Publication of EP0774561A3 publication Critical patent/EP0774561A3/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Withdrawn legal-status Critical Current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
    • E06B9/56—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

Definitions

  • the invention relates to a safety device for a roller shutter or a roller shutter against automatic unrolling.
  • the motor In the case of a motor-driven roller shutter, the motor is not only a drive device for moving the roller shutter up and down, but also at the same time a braking device against automatic unrolling. However, should the motor shaft break, for example, so that the motor or its gearbox can no longer perform the braking function, it must be ensured that the roller shutter does not unroll unchecked and may suffer or cause damage as a result.
  • the invention proposes a securing device of the type mentioned at the outset, which according to the invention is characterized by at least one toothed washer arranged on the shaft of the roller shutter or roller shutter or an auxiliary shaft coupled to it rotates within a fixed locking ring and in the tooth spaces between which rolling elements are arranged, which at a correspondingly high rotational speed of the shaft are carried radially outwards by the centrifugal force into a recess arranged in the upper area of the locking ring on its inside diameter and in this with a tooth of the toothed disc wedge.
  • the shaft rotates at relatively low speeds, as a result of which the rolling elements, which can be balls, cylindrical rollers or cylindrical pins, remain in the spaces between the teeth of the toothed disk or immediately fall back out of the recess in the locking ring into a space between the teeth.
  • the safety device does not hinder the normal operation of the roller shutter here. If the motor shaft breaks or gear parts fail, the shaft is no longer braked, so that the roller shutter begins to unroll due to the heavy weight of its curtain. Here speeds of the shaft are reached at which the rolling elements are carried by the centrifugal force from the interdental spaces into the recess of the locking ring and wedge there with one of the teeth of the toothed disc.
  • the flanks of the teeth can have a contact surface on one or both sides for rolling elements carried in the recess of the locking ring. Accordingly, both flanks or only one of the flanks can be wedged one of the rolling elements in the recess of the locking ring in the position.
  • a flank of the teeth can form a guide curve for the rolling elements, which guides them in the direction of the tooth tip even at low speed of the shaft. As a result, only minimal forces are required to fully carry the rolling elements outwards. The arrangement becomes more sensitive.
  • the tooth tips can also have approximately radially arranged grooves, as a result of which the teeth are given a certain elasticity and can absorb part of the forces when the rolling bodies wedge.
  • the at least one toothed disk can advantageously be arranged on an auxiliary shaft within the shaft of a roller shutter or roller shutter and the at least one locking ring can be fixedly connected to a bearing sleeve fastened to a building wall or a roller shutter box. Due to the arrangement of the securing device within the roller shutter shaft, the securing device does not require any additional installation space.
  • the auxiliary shaft can be driven by the shaft via a drive plate.
  • FIG. 1 shows the end region of a roller shutter shaft 10, in the interior of which a coaxial auxiliary shaft 11 of a securing device according to the invention is arranged.
  • the roller shutter shaft 10 is driven in a manner not shown by a motor.
  • the speed of the shaft 10 is transmitted to the auxiliary shaft 11 via a drive plate 12.
  • the three toothed disks 13, 13 'and 13''each have a central bore with a recess 15, 15' and 15 '' (FIG.
  • the bearing sleeve 17 can be attached to a roller shutter box or directly to a building wall.
  • balls 19 are arranged between the toothed disks 13, 13 ′ and 13 ′′ and the locking rings 16 in the interdental spaces 18. During normal operation of the roller shutter, the shaft 10 and thus the toothed disks 13, 13 'and 13''rotate only slowly. The balls 19 therefore remain in the interdental spaces 18.
  • the three toothed disks 13, 13 'and 13'' are each offset from one another in the circumferential direction by an angle ⁇ 1 and ⁇ 2 , so that in the front view the three toothed disks 13, 13', 13 '' arranged one behind the other are shown in FIG 4 shows the picture shown.
  • the interdental spaces 18 of the three toothed disks 13, 13 'and 13'' now lie against one another without gaps. This means that when a certain speed is exceeded by the shaft 10, a ball is located in the region of the recess 20 of the locking rings 16, is thrown out into this recess 20 and the shaft 10 stops.
  • the path of the roller shutter curtain is kept very low.
  • FIG. 5 to 7 show a second embodiment of a safety device according to the invention.
  • the central longitudinal section through the end region of a roller shutter shaft 30 according to FIG. 5 shows the arrangement of the securing device. It is again integrated in the interior of the end region of the shaft 30. It is enclosed by a housing 31, the area 31.1 of which forms a continuous latching area for cylindrical rollers 32, which are arranged in cutouts in toothed disks 33.
  • the toothed disks 33 are mounted on a square shaft 34 which is coupled to the shaft 30 of the roller shutter via a driver 35.
  • the housing 31 is mounted on a rod 36 which is fastened to a house wall 38 via a wall bearing 37.
  • the roller shutter shaft 30 is in turn rotatably mounted on the rod 36 via a shaft bearing 39 by means of a bearing block 40.
  • the bearing block has an anti-rotation device 41 with respect to the rod 36.
  • the rod 36 has a square cross section, the housing 31 being able to rotate by a limited angle ⁇ relative to the rod 36 when the securing device is activated (FIG. 6c)).
  • a switch 42 for interrupting the motor current which is firmly connected to the housing 31, can thereby be actuated.
  • the sectional views 6a) - 6c) show the housing 31 in the area of a receptacle 31.2 for the rod 36. In FIG.
  • the housing 31 is shown without the rod 36. From this it can be seen that the receiving opening 31.2 has a substantially square cross section, but recesses 31.3 are provided in the corner regions of the square, in which damping bodies 43 are arranged, as can be seen in FIG. 6b), which the arrangement in normal Shows the operating status.
  • the housing 31 rotates relative to the rod 36 by the angle ⁇ (FIG. 6c)).
  • the damping body 43 provides for cushioning of the shock that occurs as a result.
  • FIG. 7 shows the special configuration of the toothed disks 33 of the securing device.
  • Recesses 45 for the cylinder rollers 32 are provided between teeth 44.
  • the front flank 46 of the teeth 44 in the direction of rotation forms a guide curve for the cylinder rollers 32.
  • the rolling elements 32 reach those in FIGS c) positions shown.
  • the cylinder rollers 32 are guided out of the recesses 45 along the guide curve 46 of the tooth 44 (FIG. 7b)). After exceeding the highest point (Fig. 7c)), the cylinder rollers 32 fall at low speed of the shutter shaft 30, i. H.
  • the cylinder rollers 32 are carried outwards by the centrifugal force and wedge with a tooth 44 of the toothed disk 33 in the Recess 31.4 of the housing part 31.1 (Fig. 7d), e)). This reliably prevents further rolling of the roller shutter.
  • the teeth 44 have a radially aligned groove 47 in the region of their tip, which causes a certain cushioning of the forces occurring when the cylinder rollers 32 wedge, as the enlarged illustration in FIG. 7e) shows.
  • balls could of course also be used as rolling elements in the securing device according to FIGS. 5 to 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP96103861A 1995-11-15 1996-03-12 Dispositif de sécurité pour un volet à rouleau ou une porte enroulable Withdrawn EP0774561A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29624413U DE29624413U1 (de) 1995-11-15 1996-03-12 Sicherungsvorrichtung für einen Rollladen oder ein Rolltor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1995142565 DE19542565A1 (de) 1995-11-15 1995-11-15 Sicherungsvorrichtung für einen Rolladen oder ein Rolltor
DE19542565 1995-11-15

Publications (2)

Publication Number Publication Date
EP0774561A2 true EP0774561A2 (fr) 1997-05-21
EP0774561A3 EP0774561A3 (fr) 1998-12-30

Family

ID=7777523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103861A Withdrawn EP0774561A3 (fr) 1995-11-15 1996-03-12 Dispositif de sécurité pour un volet à rouleau ou une porte enroulable

Country Status (2)

Country Link
EP (1) EP0774561A3 (fr)
DE (1) DE19542565A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028187A1 (fr) * 1998-11-09 2000-05-18 A/S Chr. Fabers Fabriker A/S Mecanisme de blocage de rotation pour stores roulants
EP0969180A3 (fr) * 1998-07-03 2002-09-11 GAPOSA S.r.l. Moto-réducteur tubulaire avec frein anti-chute intégré pour l'enroulement de volets et stores roulants
CN109882062A (zh) * 2019-03-19 2019-06-14 湖北思泽新能源科技有限公司 旋转柱式卷帘门防坠装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106193981B (zh) * 2016-08-29 2018-04-06 宜昌四八二〇机电有限公司 卷门机防坠装置
DE102019113111B4 (de) 2019-05-17 2022-08-04 Logicdata Electronic & Software Entwicklungs Gmbh Linearaktuator, Aktuatorsystem, Möbelstück und Verfahren zum Ansteuern eines Linearaktuators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8104543U1 (de) * 1981-02-19 1981-07-23 Haake, Werner, 4286 Südlohn Sicherungsvorrichtung fuer auf eine wickelwelle aufgerollte oeffnungsabschluesse
DE3113043A1 (de) * 1981-04-01 1982-10-28 W. u. H. Neukirchen GmbH & Co KG, 4060 Viersen Fangvorrichtung an einer rolladenwelle
DE3300331C1 (de) * 1983-01-07 1984-05-10 Werner 4286 Südlohn Haake Tor
DE3415878A1 (de) * 1984-04-28 1985-10-31 Werner 4286 Südlohn Haake Sicherungsvorrichtung gegen ungewolltes abrollen von oeffnungsabschluessen
EP0497711A1 (fr) * 1991-01-14 1992-08-05 Simu Mécanisme de sécurité pour dispositifs de fermeture à commande électrique de volets roulants et similaires

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8104543U1 (de) * 1981-02-19 1981-07-23 Haake, Werner, 4286 Südlohn Sicherungsvorrichtung fuer auf eine wickelwelle aufgerollte oeffnungsabschluesse
DE3113043A1 (de) * 1981-04-01 1982-10-28 W. u. H. Neukirchen GmbH & Co KG, 4060 Viersen Fangvorrichtung an einer rolladenwelle
DE3300331C1 (de) * 1983-01-07 1984-05-10 Werner 4286 Südlohn Haake Tor
DE3415878A1 (de) * 1984-04-28 1985-10-31 Werner 4286 Südlohn Haake Sicherungsvorrichtung gegen ungewolltes abrollen von oeffnungsabschluessen
EP0497711A1 (fr) * 1991-01-14 1992-08-05 Simu Mécanisme de sécurité pour dispositifs de fermeture à commande électrique de volets roulants et similaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969180A3 (fr) * 1998-07-03 2002-09-11 GAPOSA S.r.l. Moto-réducteur tubulaire avec frein anti-chute intégré pour l'enroulement de volets et stores roulants
WO2000028187A1 (fr) * 1998-11-09 2000-05-18 A/S Chr. Fabers Fabriker A/S Mecanisme de blocage de rotation pour stores roulants
CN109882062A (zh) * 2019-03-19 2019-06-14 湖北思泽新能源科技有限公司 旋转柱式卷帘门防坠装置

Also Published As

Publication number Publication date
EP0774561A3 (fr) 1998-12-30
DE19542565A1 (de) 1997-05-22

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