EP0021820A1 - Serrure - Google Patents

Serrure Download PDF

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Publication number
EP0021820A1
EP0021820A1 EP80302114A EP80302114A EP0021820A1 EP 0021820 A1 EP0021820 A1 EP 0021820A1 EP 80302114 A EP80302114 A EP 80302114A EP 80302114 A EP80302114 A EP 80302114A EP 0021820 A1 EP0021820 A1 EP 0021820A1
Authority
EP
European Patent Office
Prior art keywords
bolts
pinion member
handle
latch
locking position
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Withdrawn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
EP80302114A
Other languages
German (de)
English (en)
Inventor
Kevin Hinton
Barry Robert Guymer
John Smith
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.)
Schlegel UK Ltd
Original Assignee
Schlegel UK Ltd
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 Schlegel UK Ltd filed Critical Schlegel UK Ltd
Publication of EP0021820A1 publication Critical patent/EP0021820A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
    • E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
    • E05C9/047—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening comprising key-operated locks, e.g. a lock cylinder to drive auxiliary deadbolts or latch bolts
    • 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
    • E05B2063/207—Automatic deadlocking

Definitions

  • This invention relates to a three point lock for a side hung door or window (hereinafter referred to as a door).
  • a three point lock we mean a lock which, when operated, will cause the door to which it is fitted to be secured to its frame at three points. More specifically, the invention relates to a three point lock with a dead- locking facility.
  • Three point locks are known but the majority of these have a single operating member, e.g. a handle, to move the lock between its locking and unlocked positions. This means that the locks cannot be deadlocked and are ' not suitable for use on outside doors of private houses or on shop front doors.
  • a key-operated three point lock is known, in which all three bolts are thrown by the key, one engaging in the jamb of the door, and the others securing the top and bottom of the door, and engaging respectively in the head and sill of the door frame.
  • Such three point locks suffer from the disadvantage that they do not have sufficient mechanical advantage, in that the user often cannot obtain sufficient leverage with the key to throw the three bolts, especially when the door has warped slightly, and the bolts are not precisely aligned with their apertures in the frame.
  • a further three point lock has been proposed in which the head and sill bolts are operated with the same actuator as the third bolt or latch and in this construction a locking slide is provided to deadlock the head and sill bolts.
  • This locking slide can be released by operating a release mechanism which may incorporate a key but subsequently the head and sill bolts have to be withdrawn from their locking position meaning that unlocking of the lock is a two-handed operation.
  • the present invention seeks to overcome the disadvantages of known three point locks, and yet provide a relatively simple and cheap lock.
  • a three point lock comprising a casing, a latch, and two bolts movable in directions transverse to that of the latch, the latch being operated and the bolts being movable to a dead-locked locking position by means of a single operating handle, and there being a further operating device to move the bolts to a released position.
  • the latch is released in traditional manner, and by rocking it in the opposite sense, the two bolts are moved to their locking position and dead-locked, the bolts being movable from their locking position by operation of a key, or alternative means.
  • the handle is mounted on a spindle keyed to a first pinion member having a projecting lug engaging a projection on the rear of the latch, so that rocking movement of the first pinion member through about 30° as a result of rocking the handle in one sense withdraws the latch against a spring bias, which returns the latch to its locking position, and the handle to its position of rest, when the handle is released.
  • the first pinion member engages with a second pinion member for moving the bolts to their locking position.
  • each bolt has a yoke associated with it, the forked ends of which accommodate a part of the second pinion member to which they are pivotally connected by pins.
  • the pins run in arcuate slots in the second pinion member, located respectively 180° apart, one for the head bolt and the other for the sill bolt, the arrangement being such that rocking movement of the handle in the other sense will cause rotation of the second pinion member, which will be translated into upward movement of the head bolt and downward movement of the sill bolt.
  • At least one of the bolts when it moves to its locking position, is moved against the bias of a spring.
  • a locking pawl is provided to engage in a cut-out in the second pinion member when it reaches a position in which the bolts are in their fully extended locking position.
  • the locking pawl is in the form of a spring biased bell crank lever pivotally supported on the casing, there being a projecting lug on one of the arms of the lever which engages said cut-out to prevent rotation of the pinion member, and hence movement of the bolts from their locking position.
  • the key or alternative release means When the bolts are to be released from their dead-locked locking position, the key or alternative release means is operated, and a projection on the key lock barrel is preferably moved into engagement with the other arm of the bell crank lever, thus moving it against its spring bias, so that the lug is moved out of said cut-out, whereupon the spring biasing the said at least one locking bolt will cause the bolt to move away from its locking position, thus causing the second pinion member to rotate back to its original position thus withdrawing the other bolt, so that the bolts and handle both move back to their original positions.
  • a rack is slidably mounted in the casing, the rack having teeth thereon in engagement with teeth on the first pinion member, and wherein a recess is provided in the rack which is engageable by said projection on continued rotatian of said key beyond the position for moving the lug out of the cut-out, so that further movement of the key in the same direction will cause unlocking of said latch.
  • the spring bias for the locking pawl bell crank lever is provided by a coil spring encircling the pivot pin of the pawl, one end of the spring bearing against one arm of the bell crank lever and the other end bearing against a transverse stop in the casing.
  • this stop may be movable with the handle, so that the load on the spring is increased as the handle is operated to move the bolts to their locking position. This movement of the stop can be achieved by making the stop part of a yoke member which is moved by the second pinion as it is rocked to its bolt locking position.
  • the free ends of the arms of the yoke member may be hooked, and located on respective sides of the second pinion member, there being a transverse stud on the pinion member with which the hooks engage to lift the yoke as the pinion member is rotated.
  • the yoke member, spring, bell crank lever and its pivot may be in the form of a single assembly to assist in assembly of the mechanism.
  • the lock has a casing 1 in which a latch 3 is slidable in the direction of the arrows A, but is biased to the illustrated extended or locking position by a spring 4.
  • the latch is reversible so that the lock can be used either left or right handed.
  • the latch is of traditional shape with a curved leading edge and has an enlarged rear portion 7 with which a lug 9 on a first pinion member 11 engages.
  • the latter is rockable within the casing 1 by means of a handle, the centre line of which is shown-at 13 (for the normal position of the handle) and which engages a spindlel5 keyed to the pinion 11.
  • the latch 3 will be moved to its release position, for opening a door to which the lock is fitted.
  • the pinion member 25 has a toothed portion 35 which meshes with a toothed portion 37 of pinion member 11, and when the handle is moved in the direction of the arrow E, so the member 37 moves anti-clockwise, thus causing clockwise movement of the pinion member 25.
  • This rocking movement is then translated into linear movement of the bolts 21 and 23 which move to their extended locking position, when the handle reaches the position represented by the vertical line 39.
  • This bolt movement is resisted by a spring bias, which is provided by a spring 41, one end of which is anchored to the casing at 43 and the opposite end of which is connected to the yoke 19 at 45.
  • the second pinion member 25 has a cut-out 47 therein in which a lug 49 engages when the bolts are in their locking position as shown in Figure 2.
  • the lug 49 is part of a locking pawl 51 and is provided on one arm of a bell crank lever, the other arm of which is indicated at 55.
  • the locking pawl acts as a dead-lock, holding the two bolts 21 and 23 in their locking position.
  • the locking pawl is biased into its dead-lock position by means of a spring 57 which encircles a pivot pin 59 for the pawl, one end of the spring bearing against one arm of the bell crank lever and the other end engaging the base 61 of a U-shaped yoke member 63.
  • the other end of the spring 57 could be fixed to the casing 1, it preferably bears against the base 61 of the yoke member 63, the arms of which are hooked at their free ends 65, and are located, one on each side of the pinion member 25.
  • a transverse stud or bar 67 is mounted on the member 25, and as this moves clockwise as a result of the handle being moved to the position 39, so the stud or bar 67 will engage the hooked ends 65 of the yoke member, and lift it, thus increasing the bias of the spring 57 acting on pawl 51, to ensure satisfactory engagement of the lug 49 in cut-out 47.
  • the handle In this position, the handle is also locked in the position represented by the centre line 39, and the lock is dead-locked.
  • a key is located in a keyhole 69.
  • the barrel of the keylock will rotate, this rotational movement being transferred to a projection 71 on the barrel, which is so located as to be moved into engagement with the other arm 55 of the bell crank.
  • the bell crank lever will be rocked anti-clockwise from the Figure 2 position to that of Figure 1, against the bias of the spring 57.
  • the latch 3 can be released either from the exterior or the interior of the building by operating the handle.
  • the three point lock can also be fitted to front doors or doors of shop premises and traditionally these doors to not have an exterior operating handle but only one on the inside. This means that it must be possible to move the latch 3 to its unlocked position by means of a key located in the keyhole 69.
  • a rack 72 is slidably supported in the rear of the casing 1, the rack having at its upper end a plurality of gear teeth 73 which mesh with the teeth 37 on the first pinion member 11.
  • the rack is located between the side plates of the casing 1, each of which is provided with an upper slot 75 and a lower slot 77 in which projections 79 on the rack slidably engage.
  • a recess 81 is formed in the rack which can be engaged by the projection 71 on the key lock barrel.
  • the drawing shows a cylinder lock which is operated from either side of the door by a key which is inserted in the keyhole 69
  • the cylinder lock may be altered, so that the interior keyhole (that on the interior face of the door) is replaced or supplemented by alternative means, e.g. a thumb turn, i.e. a supplementary operating handle for turning the barrel to release the dead-lock.
  • the three point lock of this invention is designed particularly for side hung doors and windows and can considerably increase securit Yi e.g. for front and back doors of private houses, and can also be used for shop front doors. It is especially suited for use with aluminium doors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
EP80302114A 1979-06-25 1980-06-24 Serrure Withdrawn EP0021820A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7922043 1979-06-25
GB7922043 1979-06-25

Publications (1)

Publication Number Publication Date
EP0021820A1 true EP0021820A1 (fr) 1981-01-07

Family

ID=10506069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80302114A Withdrawn EP0021820A1 (fr) 1979-06-25 1980-06-24 Serrure

Country Status (3)

Country Link
EP (1) EP0021820A1 (fr)
JP (1) JPS5634867A (fr)
ES (1) ES492714A0 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548432A (en) * 1982-04-29 1985-10-22 Bengtsson Sigurd W Latch assembly
WO1986006130A1 (fr) * 1985-04-10 1986-10-23 Mila Beslag A/S Serrure a points multiples
US4998757A (en) * 1986-09-25 1991-03-12 Dieter Ramsauer Bar enclosure for sheet metal cabinet doors
EP0500998A1 (fr) * 1991-03-28 1992-09-02 Imberwood Ltd. Dispositif de verrouillage automatique
US5495731A (en) * 1993-03-26 1996-03-05 Roto Frank Eisenwarenfabrik Aktiengesellschaft Multiple-bolt door lock
GB2289084B (en) * 1994-05-06 1998-09-02 Surelock Mcgill Limited Lock mechanism
US6257030B1 (en) * 1999-06-09 2001-07-10 Therma-Tru Corporation Thumb-operated multilatch door lock
US6478345B1 (en) 1999-10-13 2002-11-12 Surelock Mcgill Limited Multi point bolting mechanism
GB2413154A (en) * 2004-04-16 2005-10-19 Southco Latch assemblies
AU2006200991B2 (en) * 2006-03-08 2008-03-20 Allegion (Australia) Pty Ltd Improvements In Locks
US20110193352A1 (en) * 2010-02-10 2011-08-11 Lien-Hsi Huang Lock structure
US20120285207A1 (en) * 2004-07-06 2012-11-15 Homegate Ltd Integrated security and emergency lock
CN110439399A (zh) * 2019-07-12 2019-11-12 宁波生久柜锁有限公司 连杆传动自锁机构
WO2020130904A1 (fr) * 2018-12-17 2020-06-25 Electec System Ab Agencement de serrure de porte avec élément de guidage allongé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE359856C (de) * 1922-09-27 J B Dandois & Cie Verschluss- und Blockiervorrichtung fuer Tueren von Fahrzeugen aller Art mittels eines mit keilfoermigen Nasen versehenen Baskuelriegels
FR789747A (fr) * 1934-08-04 1935-11-05 Crémone
US3477753A (en) * 1967-04-13 1969-11-11 Ford Motor Co Latch mechanism
FR2177238A6 (fr) * 1972-03-21 1973-11-02 Drevet & Cie
FR2253384A5 (en) * 1973-11-30 1975-06-27 Massard Jean Ets Casement bolt with upper and lower roller or rods latch - is used for closing French windows with probe lever actuated by handle
DE2814417A1 (de) * 1977-04-08 1978-10-12 Gillet Roquigny Sa Abschliessbare verriegelungseinrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE359856C (de) * 1922-09-27 J B Dandois & Cie Verschluss- und Blockiervorrichtung fuer Tueren von Fahrzeugen aller Art mittels eines mit keilfoermigen Nasen versehenen Baskuelriegels
FR789747A (fr) * 1934-08-04 1935-11-05 Crémone
US3477753A (en) * 1967-04-13 1969-11-11 Ford Motor Co Latch mechanism
FR2177238A6 (fr) * 1972-03-21 1973-11-02 Drevet & Cie
FR2253384A5 (en) * 1973-11-30 1975-06-27 Massard Jean Ets Casement bolt with upper and lower roller or rods latch - is used for closing French windows with probe lever actuated by handle
DE2814417A1 (de) * 1977-04-08 1978-10-12 Gillet Roquigny Sa Abschliessbare verriegelungseinrichtung

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548432A (en) * 1982-04-29 1985-10-22 Bengtsson Sigurd W Latch assembly
WO1986006130A1 (fr) * 1985-04-10 1986-10-23 Mila Beslag A/S Serrure a points multiples
US4998757A (en) * 1986-09-25 1991-03-12 Dieter Ramsauer Bar enclosure for sheet metal cabinet doors
EP0500998A1 (fr) * 1991-03-28 1992-09-02 Imberwood Ltd. Dispositif de verrouillage automatique
US5495731A (en) * 1993-03-26 1996-03-05 Roto Frank Eisenwarenfabrik Aktiengesellschaft Multiple-bolt door lock
GB2289084B (en) * 1994-05-06 1998-09-02 Surelock Mcgill Limited Lock mechanism
US6257030B1 (en) * 1999-06-09 2001-07-10 Therma-Tru Corporation Thumb-operated multilatch door lock
US6478345B1 (en) 1999-10-13 2002-11-12 Surelock Mcgill Limited Multi point bolting mechanism
US7334438B2 (en) 2004-04-16 2008-02-26 Southco, Inc. Latch assembly
GB2413154B (en) * 2004-04-16 2006-11-01 Southco Latch assembly
GB2413154A (en) * 2004-04-16 2005-10-19 Southco Latch assemblies
US20120285207A1 (en) * 2004-07-06 2012-11-15 Homegate Ltd Integrated security and emergency lock
US9068381B2 (en) * 2004-07-06 2015-06-30 Erez Segev Integrated security and emergency lock
AU2006200991B2 (en) * 2006-03-08 2008-03-20 Allegion (Australia) Pty Ltd Improvements In Locks
US20110193352A1 (en) * 2010-02-10 2011-08-11 Lien-Hsi Huang Lock structure
US8628125B2 (en) 2010-02-10 2014-01-14 Taiwan Fu Hsing Industrial Co., Ltd. Lock structure
WO2020130904A1 (fr) * 2018-12-17 2020-06-25 Electec System Ab Agencement de serrure de porte avec élément de guidage allongé
NO346869B1 (en) * 2018-12-17 2023-02-06 Se Dev Ab Door lock arrangement with elongated guiding element
CN110439399A (zh) * 2019-07-12 2019-11-12 宁波生久柜锁有限公司 连杆传动自锁机构
CN110439399B (zh) * 2019-07-12 2023-12-22 宁波生久科技有限公司 连杆传动自锁机构

Also Published As

Publication number Publication date
JPS5634867A (en) 1981-04-07
ES8102255A1 (es) 1980-12-16
ES492714A0 (es) 1980-12-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19801120

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820724

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GUYMER, BARRY ROBERT

Inventor name: HINTON, KEVIN

Inventor name: SMITH, JOHN