EP1485557B1 - Verriegelungsvorrichtung mit drehbarer daumenklinke - Google Patents

Verriegelungsvorrichtung mit drehbarer daumenklinke Download PDF

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Publication number
EP1485557B1
EP1485557B1 EP03744572A EP03744572A EP1485557B1 EP 1485557 B1 EP1485557 B1 EP 1485557B1 EP 03744572 A EP03744572 A EP 03744572A EP 03744572 A EP03744572 A EP 03744572A EP 1485557 B1 EP1485557 B1 EP 1485557B1
Authority
EP
European Patent Office
Prior art keywords
thumb turn
switching element
latching
bolt
lock arrangement
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
EP03744572A
Other languages
English (en)
French (fr)
Other versions
EP1485557A1 (de
Inventor
Jorma Hirvi
Kjell Collin
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.)
Assa Abloy Opening Solutions Sweden AB
Original Assignee
Assa 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 Assa AB filed Critical Assa AB
Publication of EP1485557A1 publication Critical patent/EP1485557A1/de
Application granted granted Critical
Publication of EP1485557B1 publication Critical patent/EP1485557B1/de
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
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0065—Operating modes; Transformable to different operating modes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00—Devices preventing the key or the handle or both from being used
    • E05B13/002—Devices preventing the key or the handle or both from being used locking the handle
    • E05B13/004—Devices preventing the key or the handle or both from being used locking the handle by locking the spindle, follower, or the like
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B59/00—Locks with latches separate from the lock-bolts or with a plurality of latches or lock-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
    • E05B63/0013—Locks with rotary bolt without provision for latching

Definitions

  • the present invention relates generally to a lock device and more particularly to a lock device that includes a thumb turn latch that can be operated from the forend side.
  • Many house locks and apartment locks for instance, include a lock cylinder and a lock bolt that can be brought to a locked or unlocked state with the aid of a key from inside and outside the door to which the lock is fitted, and a thumb turn that is mounted on the inside of the door and that has the same function as the key.
  • the purpose of the thumb turn is to enable the lock to be brought to a locked and unlocked state without needing to use a key.
  • One drawback with this solution is that a person who has unlawfully obtained access to the inside of the door, for instance through a window, can easily unlock the door by means of the thumb turn and then leave the room through the normal exit, see for example US 3 672 714 A.
  • Locks that include a so-called thumb turn latch are known to the art.
  • a person in the possession of a valid key for instance the owner of an apartment, is able to latch the thumb turn function and thereafter use the key to lock the door.
  • anyone located on the inside of the door is then unable to leave the room through the locked door, and must therefore find another exit.
  • thumb turn latch is activated by means of a switching element on the forend side of the lock, wherein the switching element is moved to a specific position in which said latch is activated, prior to locking the door with the key.
  • a person who intends to enter locked premises unlawfully other than through the door can determine whether or not the latch has been activated, by peering through the crack in the door and therewith determining the position of the switching element.
  • a further drawback with known thumb turn latches is that their function contributes significantly to the number of lock components, resulting in higher costs both with respect to manufacture and with lock assembly/fitting.
  • a problem resides in the provision of a lock arrangement that includes a thumb turn latch with which it cannot be seen whether or not the latch has been activated, and also which is both simple and inexpensive in manufacture.
  • An object of the present invention is to provide a lock arrangement that includes a thumb turn latch that functions in a manner to prevent it from being seen whether or not the latch has been activated, from outside the door.
  • Another object of the invention is to provide a lock arrangement that comprises few components and includes a thumb turn latch and that can therefore be manufactured both simply and inexpensively.
  • the invention is based on the realisation that a lock bolt can be designed so that the latch-activating element will be returned to its original position.
  • an inventive lock arrangement comprises the features defined in the accompanying Claim 1.
  • the aforesaid drawbacks with known lock technology are avoided with the lock arrangement according to the present invention.
  • the inventive lock arrangement includes a bolt which when the door is locked from the outside functions to return the thumb turn latch switching element to its original position, therewith making it impossible to discern whether or not the latch has been activated solely from outside the door. Moreover, there is provided a thumb turn latching function that requires only very few additional parts.
  • Fig. 1 is a perspective view of an inventive lock arrangement, with the cover plate removed, and Fig. 2 is an exploded view of said arrangement.
  • the lock arrangement includes a forend unit 10 and a forend or post 11 and a bar 12 of U-shaped cross-section welded to the forend 11.
  • the U-bar encloses all lock functions close to the front of the lock, such as controlling and operating a bolt 13 in the form of a pivotal hook bolt, and a latch bolt 14.
  • the forend unit 10 will be described more precisely below, with reference to Fig. 3.
  • the lock arrangement also includes a housing consisting of a case 15 and a cover plate 16. These components are in mirror image to one another, with otherwise identical parts that are fitted to the U-bar 12 by means of anchoring elements.
  • the lock arrangement includes in said housing follower units or follower modules, in the illustrated case a cylinder follower unit 30, a handle follower unit 40, and a thumb turn unit 50.
  • the thumb turn unit will be described more specifically below with reference to Figs. 5a and 5b.
  • the follower units and the thumb turn unit are mounted between the case 15 and the cover plate 16 by means of pins and screw-on sleeves.
  • a lock cylinder 31 is fitted to the cylinder follower unit 30 and a thumb turn 51 is fitted to the thumb turn unit 50.
  • a handle is fitted to the handle follower unit 40 (Fig. 2).
  • the cylinder follower unit 30 includes a stud 31 which is coupled mechanically to a guide element 17 which is coupled to the bolt 13 and which controls movement of the bolt between an unlocked and locked position. Fitted between the cylinder follower unit 30 and the thumb turn unit 50 is a rack 70, whereby movement of the bolt can also be controlled via the thumb turn unit.
  • the forend unit 10 also includes a switching element which is guided in grooves 12a, 12b in the U-bar and which includes an outwardly projecting part 21 which can be manoeuvred by a finger inserted through an opening 11a in the forend or post 11.
  • the switching element can be moved vertically between an upper and a lower end position, of which the upper position is shown in Figs. 1 and 2.
  • the switching element functions so that when moved from its upper to its lower position, it activates a thumb turn latch which deactivates the function of the thumb turn unit 50, in other words it is no longer possible to influence the position of the hook bolt 13 by means of a thumb turn 51 coupled to the thumb turn unit 50 (see Fig. 2).
  • the switching element and its co-action with the hook bolt 13 will now be described more specifically with reference to Fig. 3 and Figs. 3a-c.
  • the switching element 20 is made of plastic and in addition to the outwardly projecting part 21 also includes a body 22 which is terminated at its bottom with an oblique contact part 23 whose underside presents a sloping contact surface 23a, as will be seen from Fig. 3a.
  • Each side of the body 22 that faces towards a respective side of the U-shaped bar includes a bevelled bead 22a, 22b, said beads running in grooves 12a, 12b in the U-bar.
  • the bevel on respective beads enables the switching element 20 to be readily pressed into the U-bar when fitting said element, wherewith the sides of said switching element spring inwards so as to enable the element to snap firmly into position.
  • the switching element also includes an outwardly projecting tailpiece 24 which is adapted for co-action with a latch plate 60, as will be described in more detail below with reference to Figs. 4a and 4b.
  • the hook bolt 13 is hinged about a point 13a and is able to pivot between a position in which is locked from the inside, shown for example in Fig. 3, and a position in which it is locked from the outside, shown in Fig. 3c.
  • the bolt is guided forcibly by means of the vertically movable guide element 17, which includes on either side a projection 17a that runs in a respective groove 13b in the hook bolt.
  • the guide element is, in turn, coupled to the stud 31 of the cylinder follower unit 30 (see Fig. 2) therewith guiding said unit 30.
  • the hook bolt 13 includes a restoring part in the form of a beak-like portion 13c which faces upwards towards the switching element 20 and whose function will now be described.
  • Figs. 3 and 3a show the switching element in its upper position, which is its normal position. In this position, the switching element is spaced from the restoring part of the hook bolt and the hook bolt is thus able to pivot between its inside-locked and its outside-locked positions without actuating the switching element.
  • the switching element 20 when activating the latching function of the thumb turn latch, the switching element 20 is moved from its upper position to its lower position, shown in Fig. 3b, with the aid of a finger.
  • the contact surface 23a of the switching element will therewith come into contact with the restoring part 13c of the hook bolt.
  • the switching element 20 remains in this lower position until the hook bolt 13 is manoeuvred from its inside-locked position to its outside-locked position, by inserting a key into the lock cylinder 31 coupled to the cylinder follower unit 30. During this movement of the switching element, the tip of the restoring part 13c slides over the contact surface 23a of the switching element therewith pressing the switching element up into its upper position, as shown in Fig. 3c.
  • the switching element co-acts with a latch plate, shown in detail in Fig. 4a.
  • the latch plate 60 is comprised of a generally flat plate 61 on which a plastic element 62 is mounted.
  • the plate includes a bent tongue 63, which is influenced by tailpiece 24 of the switching element 20.
  • Fig. 4b which shows the latch plate mounted in the lock case, with the lower position of the switching element 20 indicated in broken lines.
  • the plate 61 is also bent to form snap-in fastener parts for accommodation of the plastic element 62.
  • the lower end-part 65 of the plate 61 is configured for engagement with the thumb turn unit for the purpose of latching said unit, as described hereinafter.
  • the plastic element 62 includes two resilient arms 63, 64.
  • the right-hand arm 64 has a rounded recess 64a such that the arm defines an essentially round opening for receiving a case-carried pin 15a. This defines the lower latching end position of the latching plate. This will be explained in more detail below with reference to Figs. 6a and 6b.
  • Figs. 5a and 5b illustrate the thumb turn unit 50 included in the lock arrangement.
  • the thumb turn unit includes a plastic case or box 52 which has a lid or cover 52a formed integrally therewith.
  • the lid is intended to be snapped firmly into a closed state subsequent to having mounted relevant components in the box, and is provided to this end with holes that co-act with outwardly protruding box-carried members.
  • Both the box bottom and lid 52a include round openings 52b in which a thumb turn hub 53 is mounted with the aid of an appropriate bearing.
  • the hub 53 is spring-biased by means of a coil spring 54 disposed around the bearing and includes a latch recess 53a which faces upwards towards the lower end 65 of the latch plate in the rest position of the hub.
  • the arrangement also includes a toothed ring 55, which is mounted by bearing means on the end of the hub distal from the spring.
  • the toothed ring has a toothed portion 55a intended for engagement with the rack 70, see Figs. 6a, 6b.
  • a recess 55b Arranged around a part of the periphery of the central opening of the toothed ring 55 is a recess 55b whose width is larger than a shoulder 53b on the thumb turn hub. This provides rotational play between hub 53 and ring 55, therewith enabling the toothed ring to work freely from the hub and under the influence of the rack.
  • the thumb turn latch will now be described in more detail with reference to Figs. 6a and 6b. Because the switching element 20 has been moved to its lower position, the latch plate 60 will have been moved to its latching position by virtue of the co-action between the tailpiece 24 of the switching element and the bent tongue 63 on the latch plate. The right-hand arm 64 of the plastic element grips around the pin 15a in this position, therewith holding the latch plate in said position even should the switching element 20 be returned to its upper position. The lower end-part 65 of the latch plate therewith engages the recess 53a of the thumb turn hub 53, so as to prevent rotation of the hub. The thumb turn latch is therewith activated.
  • the hook bolt can thus only be actuated by means of the cylinder follower unit 30 through the medium of a link arrangement (not shown) coupled to the stud 31 on the cylinder follower unit, which is vertically movable.
  • a link arrangement (not shown) coupled to the stud 31 on the cylinder follower unit, which is vertically movable.
  • the switching element 20 When locking the bolt from the outside by means of a key, the switching element 20 is returned to its upper position, as described above with reference to Fig. 3 and Figs. 3a-c.
  • the rack 70 includes an outwardly protruding restoring part 71, which is intended to co-act with the left-hand arm 63 of the plastic element.
  • the rack When locking the bolt from the outside, the rack is moved to its lower end position and presses the resilient left-hand arm 63 away as it moves downwards. Upon completion of said movement, the arm returns to its rest position, whereby the restoring part is located beneath the lower tip of the left-hand arm 63 as shown in Fig. 6b.
  • the latch plate 60 is caused to accompany movement of the rack as the rack is moved towards its upper end position by virtue of the restoring part 71 pressing upwards against the arm 63.
  • the rack and the latch plate When locking of the bolt has been completed, the rack and the latch plate will be located in the position shown in Fig. 6b and the thumb turn latch facility will have been maintained.
  • the choice of specific materials has been proposed. It will be understood, however, that the plastic material may be replaced with some other material.
  • the switching element 20 may be comprised of metal sheet or the housing of the thumb turn unit 50 may be comprised of zinc, for example.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Laser Surgery Devices (AREA)
  • Tumbler Switches (AREA)
  • Toys (AREA)

Claims (10)

  1. Schlossmechanismus, aufweisend
    - ein Schlossgehäuse (12, 15, 16), welches aufnimmt:
    - eine schlüsselbetätigte Folgereinheit (30);
    - eine durch Daumendrehen betätigte Daumendreheinheit (50);
    - einen Bolzen (13), welcher in dem Schlossgehäuse für eine Bewegung zwischen einer inneren und einer äußeren Endposition unter der Wirkung der Folgereinheit und der Daumendreheinheit durch das Mittel eines Verbindungsmechanismus (17, 31) montiert ist; und
    - ein Schaltelement (20), welches mechanisch mit der Daumendreheinheit gekoppelt ist für eine Deaktivierung ihrer Funktion durch Bewegen des Schaltelements von einer Startposition zu einer Verriegelungsposition,
    dadurch gekennzeichnet, dass
    - der Bolzen ein Rückstellteil (13c) umfasst, welches dafür bestimmt ist, eine Kraft auf eine Kontaktoberfläche (23a) des Schaltelements so auszuüben, um das Sehaltelement in seine Startposition zu bewegen, wenn der Bolzen von seiner inneren Endposition zu seiner äußeren Endposition bewegt wird.
  2. Schlossmechanismus nach Anspruch 1, wobei die Kontaktoberfläche (23a) auf einer schrägen Unterseite des Schaltelements (20) angeordnet ist.
  3. Schlossmechanismus nach Anspruch 1 oder 2, wobei der Bolzen ein schwenkender Bolzen (13) ist.
  4. Schlossmechanismus nach irgendeinem der Ansprüche 1 bis 3, wobei das Rückstellteil (13c) zum Blockieren der Bewegung des Schaltelements (20) in seine Verriegelungsposition funktioniert, wenn der Bolzen in einer verriegelten Position angeordnet ist.
  5. Schlossmechanismus nach irgendeinem der Ansprüche 1 bis 4, aufweisend
    - eine drehbare Daumendrehnabe (53), welche mittels einer Daumendrehung betätigt werden kann, wobei die Nabe eine Vertiefung (53a) umfasst; und weiterhin aufweisend
    - ein Verriegelungselement (60), welches zwischen einer Freigabeposition und einer Verriegelungsposition bewegbar ist, in welcher das Verriegelungselement mit der Vertiefung in der Daumendreheinheit in Eingriff ist.
  6. Schlossmechanismus nach Anspruch 5, wobei das Schaltelement (20) einen Teil (24) umfasst, welcher das Verriegelungselement (60) in seine Verriegelungsposition antreibt, wenn das Schaltelement in seine Verriegelungsposition bewegt wird.
  7. Schlossmechanismus nach Anspruch 5 oder 6, wobei das Verriegelungselement (60) einen ersten federnden Arm (64) umfasst, welcher zum Verriegeln des Verriegelungselements in seiner Verriegelungsposition funktioniert.
  8. Schlossmechanismus nach irgendeinem der Ansprüche 1 bis 7, aufweisend eine Zahnstange (70), welche betriebsbereit zwischen der Folgereinheit (30) und einem drehbaren gezahnten Rad (55) auf der Daumendreheinheit (50) gekoppelt ist.
  9. Schlossmechanismus nach Anspruch 8, wobei das Verriegelungselement (60) einen zweiten federnden Arm (63) umfasst und wobei die Zahnstange (70) einen Eingriffsteil (71) umfasst, welcher zum Bewegen des Verriegelungselements in seine Freigabeposition funktioniert, wenn der Bolzen von seiner äußeren Endposition zu seiner inneren Endposition bewegt wird.
  10. Schlossmechanismus nach Anspruch 8 oder 9, wobei die Daumendrehnabe (53) eine Schulter umfasst und der gezahnte Ring (55) eine Vertiefung (55b) umfasst, die eine periphere Erweiterung aufweist, welche größer ist als die Schulter, wobei dadurch ein Drehabstand oder ein Spiel zwischen der Nabe und dem gezahnten Ring bereitgestellt wird.
EP03744572A 2002-03-15 2003-03-12 Verriegelungsvorrichtung mit drehbarer daumenklinke Expired - Lifetime EP1485557B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0200786 2002-03-15
SE0200786A SE521128C2 (sv) 2002-03-15 2002-03-15 Låsanordning med vredspärr
PCT/SE2003/000414 WO2003078767A1 (en) 2002-03-15 2003-03-12 Lock device with thumb turn latch

Publications (2)

Publication Number Publication Date
EP1485557A1 EP1485557A1 (de) 2004-12-15
EP1485557B1 true EP1485557B1 (de) 2006-11-02

Family

ID=20287275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03744572A Expired - Lifetime EP1485557B1 (de) 2002-03-15 2003-03-12 Verriegelungsvorrichtung mit drehbarer daumenklinke

Country Status (8)

Country Link
EP (1) EP1485557B1 (de)
AT (1) ATE344363T1 (de)
AU (1) AU2003215994A1 (de)
DE (1) DE60309448D1 (de)
DK (1) DK1485557T3 (de)
NO (1) NO336120B1 (de)
SE (1) SE521128C2 (de)
WO (1) WO2003078767A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008016699A1 (de) * 2008-03-31 2009-10-08 Dorma Gmbh & Co Kg Schloss mit einer freigebbaren Dreheinheit

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5813261A (en) 1996-10-31 1998-09-29 Boehlow; Robert D. Keyless deadbolt lock engaging device
DE10341440A1 (de) * 2003-09-09 2005-03-31 Aug. Winkhaus Gmbh & Co. Kg Treibstangenschloss
DE10341442A1 (de) * 2003-09-09 2005-03-31 Aug. Winkhaus Gmbh & Co. Kg Treibstangenschloss
US7389661B2 (en) 2004-09-24 2008-06-24 Viviano Robert J Keyless deadbolt door lock assembly
FI121344B (fi) * 2006-03-28 2010-10-15 Bjoerkboda Laas Oy Ab Ovenlukko
SE1050260A1 (sv) 2010-03-19 2011-02-01 Assa Oem Ab Låsanordning med omställbar spärranordning
SE534261C2 (sv) * 2010-06-16 2011-06-21 Assa Oem Ab Låsanordning med omställbar spärranordning
GB2489912B (en) * 2011-04-04 2013-11-27 Milenco Ltd A door lock
EP2873790B1 (de) * 2013-11-13 2019-09-18 Assa Ab Schloss mit Hakenbolzen
DE102016118119A1 (de) * 2016-09-26 2018-03-29 Assa Abloy (Schweiz) Ag Modulares Schloss

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US948201A (en) * 1909-06-11 1910-02-01 Yale & Towne Mfg Co Stop-work mechanism for locks.
US3672714A (en) * 1970-09-28 1972-06-27 Eaton Corp Mortise lock with multiple functions
NO143356C (no) * 1979-07-05 1981-04-01 Elkem Spigerverket As Anordning ved laas.
US4674776A (en) * 1986-03-03 1987-06-23 Baldwin Hardware Corporation Mortise lock having secured stops

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008016699A1 (de) * 2008-03-31 2009-10-08 Dorma Gmbh & Co Kg Schloss mit einer freigebbaren Dreheinheit
DE102008016699B4 (de) * 2008-03-31 2012-04-12 Dorma Gmbh & Co Kg Schloss mit einer freigebbaren Dreheinheit
CN101550784B (zh) * 2008-03-31 2012-08-29 多玛两合有限公司 具有可释放的旋转单元的锁

Also Published As

Publication number Publication date
SE0200786D0 (sv) 2002-03-15
DK1485557T3 (da) 2007-02-19
ATE344363T1 (de) 2006-11-15
EP1485557A1 (de) 2004-12-15
AU2003215994A1 (en) 2003-09-29
SE521128C2 (sv) 2003-09-30
NO336120B1 (no) 2015-05-18
SE0200786L (sv) 2003-09-16
NO20044069L (no) 2004-09-24
WO2003078767A1 (en) 2003-09-25
DE60309448D1 (de) 2006-12-14

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