EP0275509B1 - Fangvorrichtung für Rolltore mit Klemmring - Google Patents

Fangvorrichtung für Rolltore mit Klemmring Download PDF

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Publication number
EP0275509B1
EP0275509B1 EP87118797A EP87118797A EP0275509B1 EP 0275509 B1 EP0275509 B1 EP 0275509B1 EP 87118797 A EP87118797 A EP 87118797A EP 87118797 A EP87118797 A EP 87118797A EP 0275509 B1 EP0275509 B1 EP 0275509B1
Authority
EP
European Patent Office
Prior art keywords
pawl
clamping ring
housing
brake wheel
arresting 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.)
Expired - Lifetime
Application number
EP87118797A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0275509A2 (de
EP0275509A3 (en
Inventor
Wilhelm Menke
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87118797T priority Critical patent/ATE63152T1/de
Publication of EP0275509A2 publication Critical patent/EP0275509A2/de
Publication of EP0275509A3 publication Critical patent/EP0275509A3/de
Application granted granted Critical
Publication of EP0275509B1 publication Critical patent/EP0275509B1/de
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
    • E06B9/80—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 securing rolling gates, rolling grilles and other rollable gate closures, with a housing which is fixed relative to the winding shaft, a sawtooth-shaped recesses which are arranged uniformly distributed over the circumference and a brake wheel which is arranged on the winding shaft in a rotationally fixed manner and has a pivot point arranged eccentrically pivotable, arc-shaped pawl with a role that can be influenced by the teeth of the brake wheel, which acts as a brake body acting in the recesses of the brake wheel in positive engagement when the winding shaft unintentionally unwinds.
  • a known safety device (DE-U-82 25 405) is designed as a ball ratchet that works depending on the flying force and is constructively completely independent of the worm gear.
  • the worm drive is usually arranged at one end and the safety gear at the other end of the winding shaft.
  • the design of the safety gear as a ball lock on the one hand, as a device independent of the worm gear on the other hand, is relatively complex. In principle, this also applies to the safety device for roller doors according to DE-C-24 41 522.3.
  • the brake wheel referred to as the ratchet wheel is equipped with spaces in which balls are arranged, which are pressed against the edge of the gear housing when the winding shaft is correspondingly accelerated, in which a recess is provided, into which the first ball is pressed accordingly then, due to the dimensioning of the recess and the ball, it is pressed into the narrowing slot between the housing and the ratchet wheel in order to block the winding shaft.
  • This known safety device has a brake wheel arranged in a rotationally fixed manner on the winding shaft, a brake body acting on the brake wheel when the winding shaft unintentionally unrolls, and a housing which is stationary relative to the winding shaft, the brake wheel having sawtooth-shaped recesses which are arranged uniformly distributed over the circumference and the brake body has a recess pivotally arranged pawl can be connected to the brake wheel in the event of unintentional rapid unrolling.
  • These safety devices are heavily loaded via the friction brake. They also work jerkily with only relatively small load areas.
  • the invention has for its object to provide a safety device that is simple in construction, always responsive and ensures surface braking.
  • the brake body is designed as the pivotally mounted pawl receiving asymmetrical clamping ring and is arranged between the brake wheel and the housing.
  • Such a safety device works completely trouble-free in normal operation, because the pawl pivoting about the eccentric pivot point is held in a position that prevents a response. Only when the brake wheel turns too fast does the pawl come into contact with the brake wheel itself so that it engages in one of the recesses and brakes the brake wheel in that the asymmetrical clamping ring brakes the braking wheel across the surface. The clamping ring thus comes into a clamping position between the brake wheel and the housing, which ensures that the brake wheel is securely caught or braked. Due to the flat braking, ie the flat rubbing of the clamping ring on the housing wall and the simultaneous wedging between the housing and the brake wheel, the winding shaft is braked very quickly and uniformly. The brake wheel thus acts practically as a trigger wheel, while the clamping ring takes over the function of the brake body.
  • the pawl In order to be sure that the pawl also engages in the respective recess in the brake wheel at the right moment, the pawl is rocked up by the brake wheel at intervals corresponding to the recesses in the locking position. This upward rocking is absorbed again by the next sawtooth, so that the pawl cannot engage in a recess during normal operation, on the other hand it is all the more secure if the brake wheel is turned too quickly.
  • the pawl Once the pawl has engaged in a recess, it ensures that the clamping ring is pulled or pressed securely into the space between the brake wheel and the housing due to its asymmetrical design. In this way, very high forces are exerted and absorbed.
  • a quick wedging of the clamping ring is ensured in particular by the fact that the pawl is mounted in the thickest clamping ring, the clamping ring with its thickest clamping ring being arranged pointing towards the bottom of the housing. This position forces the above-mentioned rocking action of the pawl, which due to its special design repeatedly tries to get into the locked position, but is always prevented from doing so by the individual saw teeth of the brake wheel.
  • the pivot point of the pawl is arranged off-center of the curved pawl.
  • the jack has thus from Pivot point seen a shorter and a longer arm, so that due to the weight it always tries to come to the lower position, but is taken back by the teeth and pushed up with the tip, the end of the pawl which is stressed by the teeth of the brake wheel is equipped at the end with a rotatably arranged roller. This role therefore ensures that the tooth that hits it can neither produce wear nor wear itself. If the pawl is thrown up while the brake wheel is running too fast or too fast, the engagement in the respective recess can be reached safely, since the tip of the pawl engaging in the brake wheel is formed by the front end of the pawl.
  • This tip is expediently designed in accordance with the shape of the recesses, so that when it engages in the recess it has a secure fit and thus in turn takes the clamping ring securely with it or ensures that it is carried along by the brake wheel and into the slot between the brake wheel and housing slips in. Due to the design of the clamping body as a clamping ring, it is also ensured that the quality of the clamping body is almost insignificant for the action of the safety gear, because the clamping ring is always drawn or pressed into the slot in a wedge shape and thereby automatically leads to braking.
  • the pawl is advantageously arranged securely, for which the invention provides that the clamping ring in the region of the thickest clamping ring has a circumferential incision in which the pawl is tiltably mounted. It is therefore no longer possible to influence the jack from the outside after installation.
  • the clamping ring is assigned to the bottom of the housing with the thickest clamping ring, which has already been explained above.
  • the invention provides that the clamping ring is releasably connected to the housing via a pin. If the braking action occurs due to the engagement of the pawl, the resistance becomes this pin easily overcome, while the pin ensures during normal operation that the clamping ring remains in the optimal starting position.
  • the housing is the gear housing, because it can then be integrated with the gear designed as a slip-on gear. If, on the other hand, the gear is arranged below or above the winding shaft and connected to it, for example via a chain, the housing is designed separately so that it automatically acts as a brake shoe when the suspension element breaks.
  • the pawl is influenced evenly by the brake wheel and kept in a kind of suspended state, since according to an appropriate design the saw teeth formed by the recesses on the outer circumference of the brake wheel are evenly distributed and that the pawl is dimensioned such that at least three saw teeth each pawl cover.
  • the pawl is pushed up again and again, without the risk that it will be practically flung up by too large a distance between the saw teeth and can therefore come into the braking position.
  • the sawtooth stressed by the pawl is relieved in that the inner edge of the clamping ring is roughened in the region of the pawl and in the direction of rotation or has unevenness.
  • the saw teeth following or upstream of the stressed saw tooth each engage securely in the braking process and also ensure that the clamping ring is quickly pushed into the wedge position.
  • An advantageous asymmetry of the clamping ring is advantageously achieved in that the center point of the circle forming the inner edge lies slightly, preferably 5 mm, below the circle forming the outer edge. This results in a uniform wedge that optimally slides into the existing gap and very quickly leads to the braking of the brake wheel.
  • the invention is particularly characterized in that, in the event of a suspension element breakage, the braking process is initiated very quickly in that the pawl engages in the toothing of the brake wheel and thereby displaces the clamping ring in the direction of fall so that wedging between the clamping ring and the brake wheel or the clamping ring and housing occurs.
  • unintentional braking of the brake wheel and thus the winding shaft by the pawl is prevented because the pawl tries to tip out of the locked position due to its design.
  • the pawl is repeatedly prevented from doing so because the saw teeth running slowly over it presses onto the end that carries a roller and thus the shorter arm of the pawl.
  • the pawl When the brake wheel is running fast, on the other hand, the pawl is thrown up so that it engages in one of the recesses in the brake wheel and then brings about the braking process for a short time. It is particularly advantageous that, due to the flat braking and the special design of the individual parts, it is possible to switch to die-cast zinc or brass, with special machining of the brake wheel and the other parts not being necessary. The shape and the special design and arrangement of the individual parts causes and ensures that the winding shaft is braked quickly if the suspension element breaks.
  • the safety device (1) shown in the figures is designed here as a safety device integrated in the slip-on gear.
  • a brake wheel (4) which is designed like a saw wheel and to which a specially shaped brake body is assigned, is slid onto the winding shaft (2), which is arranged to rotate in the housing (3).
  • the direction of rotation of the brake wheel (4) is designated (6).
  • the brake wheel (4) Distributed over the circumference of the brake wheel (4), it has recesses (9, 10) which are arranged and formed uniformly and form saw teeth (11, 12) pointing in the direction of rotation (6).
  • a clamping ring (13) is arranged in an asymmetrical design. With its thickest clamping ring (14), it is arranged pointing in the direction of the bottom (15) of the housing (3) and equipped with a pawl (16) which can be pivoted about the pivot point (17).
  • the pawl (16) has a longer arm (18) and one shorter arm (19). At the free end of the shorter arm (19), a roller (20) is rotatably arranged, the saw tooth (12) rotating past acting on this roller (20) and ensuring that the pawl (16) due to its longer arm (18 ) cannot drop or fall. Rather, the tip (21) of the longer arm (18), which is adapted to the shape of the recesses (9, 10), is pivoted into the position shown in FIG. 1, in order to then sink again to the next sawtooth (11) and thereby let the next sawtooth pass. The tip (21) is thus raised and lowered when the winding shaft (2) and thus the brake wheel (4) are turned slowly, without the pawl (16) engaging with one of the recesses (9, 10) with its tip (21) can.
  • the pawl (16) is swiveled up or rocked up by the saw teeth (11 or 12) striking with appropriate force, so that the tip (21) engages in one of the recesses (9, 10) and thereby causes the clamping ring (13) to be pulled or pressed together.
  • the clamping ring (13) is in the direction of the arrow, i.e. shifted in the direction of rotation (6) so that wedging occurs between the brake wheel (4) and the clamping ring (13).
  • the brake wheel (4) and thus the winding shaft (2) are fixed in the shortest possible way and the suspension element breakage can be remedied.
  • FIG. 4 illustrates the asymmetrical design of the clamping ring and shows that on the inner edge (29) bumps (30) are provided, which the Carrying the clamping ring (13) by the individual saw teeth (11, 12) facilitates or additionally ensures in the event of a suspension element breakage.
  • the notch (27) for the pin (28) is provided in the outer edge (26).
  • the pivot point is designated by (17) about which the pawl (16) used can rock.
  • FIG. 5 shows the clamping ring (13) in plan view, it being clear here that and how the incision (23) is provided, in which the pawl (16) is used.
  • bores (22, 31) are provided in the clamping ring (13), into which the pawl (16) with its bolts (24, 25) can be inserted, so that they can be easily moved around the pivot point (17th ) pivots.
  • the upper part of FIG. 6 illustrates how the roller (20) is arranged on the shorter arm (19).

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Braking Arrangements (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Replacement Of Web Rolls (AREA)
  • Seal Device For Vehicle (AREA)
  • Lock And Its Accessories (AREA)
  • Clamps And Clips (AREA)
EP87118797A 1987-01-17 1987-12-18 Fangvorrichtung für Rolltore mit Klemmring Expired - Lifetime EP0275509B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118797T ATE63152T1 (de) 1987-01-17 1987-12-18 Fangvorrichtung fuer rolltore mit klemmring.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701251 1987-01-17
DE19873701251 DE3701251A1 (de) 1987-01-17 1987-01-17 Fangvorrichtung fuer rolltore mit klemmring

Publications (3)

Publication Number Publication Date
EP0275509A2 EP0275509A2 (de) 1988-07-27
EP0275509A3 EP0275509A3 (en) 1989-01-11
EP0275509B1 true EP0275509B1 (de) 1991-05-02

Family

ID=6318998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87118797A Expired - Lifetime EP0275509B1 (de) 1987-01-17 1987-12-18 Fangvorrichtung für Rolltore mit Klemmring

Country Status (5)

Country Link
EP (1) EP0275509B1 (cs)
AT (1) ATE63152T1 (cs)
DE (2) DE3701251A1 (cs)
ES (1) ES2022286B3 (cs)
GR (1) GR3001911T3 (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011107241U1 (de) * 2011-06-21 2012-11-07 GfA-Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG Rohrmotorantrieb und Excentergetriebe für Rohrmotorantrieb

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840444C2 (de) * 1988-12-01 1998-11-19 Mfz Antriebe Gmbh Rohrmotor
DE3901206C2 (de) * 1989-01-17 1994-11-10 Mfz Antriebe Gmbh Fangvorrichtung zur Sicherung von Rolltoren u.a.
DE4024666C2 (de) * 1990-06-01 1994-02-03 Niemetz Torbau Und Metallbau Sektionaltor
FR2685032B1 (fr) * 1991-12-11 1994-02-04 Zurflum Feller Sa Dispositif limiteur de vitesse pour volets roulants.
DE4207697C2 (de) * 1992-02-19 1994-10-06 Wilfried Rahe Fangvorrichtung für Wickelwellen
PT1689859E (pt) 2003-12-03 2011-06-01 Danisco Us Inc Per-hidrolase
US7254868B2 (en) 2004-12-27 2007-08-14 Wayne-Dalton Corp. winding and anti-drop assembly for door counterbalance system
DE102006034962B4 (de) 2006-07-28 2010-07-08 Feig Electronic Gmbh Verfahren zum gesicherten Bremsen eines Tores sowie Vorrichtung zur Durchführung des Verfahrens
DE202007002787U1 (de) 2007-02-22 2008-07-03 GfA-Antriebstechnik Gesellschaft mit beschränkter Haftung Fangvorrichtung zum Stillsetzen einer Umlenk- oder Wickelwelle
CN110843968B (zh) * 2019-11-12 2025-08-22 上海钧正网络科技有限公司 闸线锁、车辆及车辆的开关锁方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH573146A5 (en) * 1974-07-18 1976-02-27 Kauffmann Th Kg Rolladen Kauff Grab for lifting or lowering loads - released in dependence on speed with control disc rotating with drive roller
DE2441522C3 (de) * 1974-08-30 1982-08-19 Werner 4426 Vreden Haake Sicherungsvorrichtung für Rolltore o.dgl.
DE2708087A1 (de) * 1977-02-25 1978-08-31 Neukirchen W U H Fangvorrichtung an einer wickelwelle eines rolladens, rolltores o.dgl.
DE3140792C2 (de) * 1981-10-14 1984-08-02 Josef Timmer Gmbh, 4420 Coesfeld Sicherungsvorrichtung gegen ungewolltes Abrollen von auf Wickelwellen aufgerollten Öffnungsabschlüssen
DE8225405U1 (de) * 1982-09-09 1982-12-30 Haake, Andre, 4286 Südlohn Sicherungsvorrichtung gegen ungewolltes abrollen von oeffnungsabschluessen
DE3300215A1 (de) * 1983-01-05 1984-07-12 Fa. W.u.H. Neukirchen, 4060 Viersen Antrieb fuer rolltore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011107241U1 (de) * 2011-06-21 2012-11-07 GfA-Gesellschaft für Antriebstechnik Dr.-Ing. Hammann GmbH & Co. KG Rohrmotorantrieb und Excentergetriebe für Rohrmotorantrieb

Also Published As

Publication number Publication date
DE3701251C2 (cs) 1989-05-18
DE3701251A1 (de) 1988-07-28
EP0275509A2 (de) 1988-07-27
ES2022286B3 (es) 1991-12-01
EP0275509A3 (en) 1989-01-11
GR3001911T3 (en) 1992-11-23
ATE63152T1 (de) 1991-05-15
DE3769778D1 (de) 1991-06-06

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