EP0547746B1 - Retention device - Google Patents

Retention device Download PDF

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Publication number
EP0547746B1
EP0547746B1 EP92309682A EP92309682A EP0547746B1 EP 0547746 B1 EP0547746 B1 EP 0547746B1 EP 92309682 A EP92309682 A EP 92309682A EP 92309682 A EP92309682 A EP 92309682A EP 0547746 B1 EP0547746 B1 EP 0547746B1
Authority
EP
European Patent Office
Prior art keywords
unit
lever unit
bolt
door
shoot
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
EP92309682A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0547746A1 (en
Inventor
Renzo Ravegnini
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.)
CORBIN Co
Original Assignee
CORBIN Co
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 CORBIN Co filed Critical CORBIN Co
Publication of EP0547746A1 publication Critical patent/EP0547746A1/en
Application granted granted Critical
Publication of EP0547746B1 publication Critical patent/EP0547746B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E05B65/1006—Locks or fastenings for special use for panic or emergency doors of the vertical rod type
    • E05B65/1013—Trigger means for holding the bolt in the retracted position and releasing the bolt when the door is closed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed

Definitions

  • This invention relates to a combination of a device for the retention of the bolt shoot of an emergency exit door and a bolt shoot.
  • Doors of this type which are also called “panic exits", are, for example, required for emergency exits in public buildings.
  • Some locks used for these emergency exit doors are fitted with bolt shoots which slide vertically within the actual door; the bolt shoots, operated by special spring-loaded devices, are designed to fit into a special hole in the doorframe. The bolt shoots are moved into the lowered (open) position by means of an external mechanism (for example a panic bolt push-bar).
  • an external mechanism for example a panic bolt push-bar.
  • An example of such an anti-panic system is known from WO 83/01644.
  • Such locks are often fitted with a retention device for holding the bolt shoot in the lowered position when the door is open.
  • the retention device is usually moved by means of a mobile part between a withdrawn position inside the door area and an active position projecting from the door, for example adjacent to the bolt shoot.
  • this mobile part When the door is closed, this mobile part is pushed down by coming into contact with the door head and the retention device is deactivated. When the door is opened this mobile part is sprung into the active, projecting position and retains the bolt shoot. Obviously, then the door is closed and the mobile part comes into contact with the door head, it is pushed into the lowered position again and frees the bolt shoot.
  • Retention devices already in use are not however without drawbacks which limit their effectiveness. In particular, some of them are of too large a size, and are not always acceptable in proportion to the dimensions of the door and its frame. Other models of retention devices require a great deal of precision during mounting to avoid preventing correct operation, which can lead to increased costs and risk of malfunction. For example, there have been complaints that the mobile part can jam in the closed position inside the bolt shoot guide, which may be manufactured with a slightly widened shape.
  • the present invention provides a combination of a bolt shoot of an emergency exit door and a device for the retention of said bolt shoot, the device comprising a lever unit mounted for rotation about a horizontal axis between a lowered position and an active raised position, biasing means for biasing the lever unit into the active position; latch means formed on the lever unit and located in front of the bolt shoot according to the hand of the door, and adapted to project above the door when the lever unit is in the active position; characterised in that said lever unit further comprises a catch unit mounted on the lever unit which is adapted in the active position to engage a toothed section of the bolt shoot to prevent it from moving upwards.
  • the retention device (1) has a box-type housing (3), which is of an inverted U-shape, and has a hole (4) on the upper side (3a), through which the bolt shoot (2) passes freely.
  • This bolt shoot (2) is moved vertically in known manner by a suitable spring-loaded mechanism which is not illustrated.
  • an oscillating lever unit (8) is mounted for rotation above a horizontal axis, by a pivot (9) which is mounted between the sides (3b) of the housing (3).
  • the free end of the lever unit (8) forms a latch (10) which extends upwards, in the median vertical plain of this lever (8), forming a bracket which holds the bolt shoot (2).
  • the latch (10) is located in front of the bolt shoot (2), according to the hand of the door (indicated with an A in the illustration).
  • part of the end of the latch (10) protrudes from an opening (11) on the top side (3a) of the housing (3).
  • This end section of the latch (10) forms an inclined plant (10a) which is opposite to the door hand A.
  • a catch unit (13) attached to the lever unit by means of a transverse pin (12) also rotates above the pivot (9).
  • the catch unit (13) comprises a bent U-shaped element and, in the active position, is adapted to engage a toothed section (14) of the bolt shoot (2) to prevent it from sliding upwards.
  • the toothing (14) on the bolt shoot (2) has a serrated profile, comprising a series of downwardly pointing conical teeth.
  • the catch unit (13) is used to engage these teeth with the front edge of its underside (13a), which works essentially as a pawl.
  • the catch unit (13) and the lever (8) are moved together by a torsion spring (15) which is wound round the pivot (9) and is at one end hooked on to a bend (16) on the upper side (3a) of the housing (3). At the free end, the spring (15) acts on the rear edge of the underside (13a) of the catch unit (13), pushing the catch unit (13) into the active position.
  • a torsion spring (15) which is wound round the pivot (9) and is at one end hooked on to a bend (16) on the upper side (3a) of the housing (3).
  • the spring (15) acts on the rear edge of the underside (13a) of the catch unit (13), pushing the catch unit (13) into the active position.
  • this embodiment of a device according to the invention provides an excellent solution to the problem of the retention of emergency exit bolt shoots. It should be noted in particular that the location of the latch (10) in front of the bolt shoot (2) results in a reduction in overall dimensions, particularly with regard to the transverse axis, and makes easy, rapid mounting possible, since great precision is not required.
  • the device also has a very simple structure, which is an advantage for both effectiveness and manufacturing costs, as well as being very sturdy, so as to ensure adequate duration even when used continuously.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lock And Its Accessories (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP92309682A 1991-11-15 1992-10-22 Retention device Expired - Lifetime EP0547746B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI913046A IT1252294B (it) 1991-11-15 1991-11-15 Dispositivo per il bloccaggio dell'asta di chiusura di porte di sicurezza
ITMI913046 1991-11-15

Publications (2)

Publication Number Publication Date
EP0547746A1 EP0547746A1 (en) 1993-06-23
EP0547746B1 true EP0547746B1 (en) 1995-08-09

Family

ID=11361109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92309682A Expired - Lifetime EP0547746B1 (en) 1991-11-15 1992-10-22 Retention device

Country Status (4)

Country Link
EP (1) EP0547746B1 (it)
DE (1) DE69204038T2 (it)
ES (1) ES2075632T3 (it)
IT (1) IT1252294B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT230668Y1 (it) * 1993-10-25 1999-06-09 Corbin Co Serratura per l'anta secondaria di porte tagliafuoco
IT232093Y1 (it) * 1994-11-21 1999-08-16 Corbin Co Dispositivo perfezionato per il bloccaggio dell'asta di chiusura di porte di sicurezza
ES2149062B1 (es) * 1997-02-17 2001-04-16 Talleres Escoriaza Sa Dispositivo de punto de cierre alto o bajo, en puertas con cerradura automatica.
DE69810908D1 (de) * 1997-03-12 2003-02-27 Express Lock Ltd Schloss
ES2199615B1 (es) * 2000-10-25 2005-02-16 Talleres De Escoriaza, S.A. Dispositivo de punto alto de cierre para cerraduras de puertas de emergencia.
DE102009044654A1 (de) * 2009-11-25 2011-05-26 Securidev S.A. Schubstangenschaltschloss
US20110265384A1 (en) * 2010-04-29 2011-11-03 Panduit Corp. Vertical Cable Manager Door
CN104145071B (zh) * 2012-03-02 2016-06-29 百乐仕株式会社 开闭体的锁止装置
DE202012002742U1 (de) * 2012-03-19 2012-04-26 Kfv Karl Fliether Gmbh & Co. Kg Treibriegel-Schaltschloss
DE102015217537A1 (de) * 2015-09-14 2017-03-16 Aug. Winkhaus Gmbh & Co. Kg Treibstangenschloss
GB2622614A (en) * 2022-09-23 2024-03-27 Surelock Mcgill Ltd Bolt restraint

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2918837C2 (de) * 1979-05-10 1986-03-20 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Notentsperreinrichtung an einem mit einer zentralen Verriegelungsanlage ausgerüsteten Schloß für Türen oder Raumklappen von Kraftfahrzeugen, insbesondere Omnibussen
WO1983001644A1 (en) * 1981-11-06 1983-05-11 PARLEBAS, Gérard, Georges, Eugène Antipanic opening system
DE3436749C2 (de) * 1984-07-04 1986-12-18 Echt & Co Nachf. Schulte Gmbh & Co Kg, 5750 Menden Vorrichtung zur Ver- und Entriegelung einer zweiflügeligen Tür, insbesondere als Panikentriegelung
FR2572116B2 (fr) * 1984-10-19 1988-09-30 Leplat Robert Dispositif de verrouillage et deverrouillage a distance, notamment pour barre anti-panique
DE3533361A1 (de) * 1985-02-14 1986-08-14 Echt & Co Nachf. Schulte Gmbh & Co Kg, 5750 Menden Panikstangengriffbeschlag
US4801163A (en) * 1986-09-02 1989-01-31 Emhart Industries Inc. Exit device actuator and dogger
FR2650619B1 (fr) * 1989-08-02 1991-11-08 Vachette Sa Serrure antipanique a barillet de surete

Also Published As

Publication number Publication date
DE69204038D1 (de) 1995-09-14
DE69204038T2 (de) 1996-01-11
ITMI913046A0 (it) 1991-11-15
ITMI913046A1 (it) 1993-05-15
ES2075632T3 (es) 1995-10-01
IT1252294B (it) 1995-06-08
EP0547746A1 (en) 1993-06-23

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