EP1672149A1 - Motorisierter Verschluss - Google Patents

Motorisierter Verschluss Download PDF

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Publication number
EP1672149A1
EP1672149A1 EP04425925A EP04425925A EP1672149A1 EP 1672149 A1 EP1672149 A1 EP 1672149A1 EP 04425925 A EP04425925 A EP 04425925A EP 04425925 A EP04425925 A EP 04425925A EP 1672149 A1 EP1672149 A1 EP 1672149A1
Authority
EP
European Patent Office
Prior art keywords
worm screw
nut
bolt
lock
spheres
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Withdrawn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
EP04425925A
Other languages
English (en)
French (fr)
Inventor
Cristian Mazzelli
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.)
Opera Srl
Original Assignee
Opera Srl
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 Opera Srl filed Critical Opera Srl
Priority to EP04425925A priority Critical patent/EP1672149A1/de
Publication of EP1672149A1 publication Critical patent/EP1672149A1/de
Withdrawn legal-status Critical Current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
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0023—Nuts or nut-like elements moving along a driven threaded axle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0026—Clutches, couplings or braking arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0084—Key or electric means; Emergency release
    • 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
    • E05C9/02—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening
    • E05C9/021—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening with rack and pinion mechanism
    • E05C9/023—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with one sliding bar for fastening when moved in one direction and unfastening when moved in opposite direction; with two sliding bars moved in the same direction when fastening or unfastening with rack and pinion mechanism between a lock cylinder and the bar

Definitions

  • the prior art contains motorised locks, mainly used for allowing or not allowing opening of doors of various kinds. These locks typically comprise a bolt, mobile between an open position and a closed position, corresponding to whether the door is open or locked.
  • the bolt is activated to displace between the positions of opening and closure by motorised means for activating, generally constituted by an electric gear-reducer having a worm screw for an output shaft.
  • the worm screw is coupled to a nut which is mechanically associated to the bolt. The rotation of the worm screw induces a displacement in the nut along the longitudinal rotation axis of the worm screw, causing the bolt to move into the open or closed position.
  • the mechanical means for activating generally comprise a mechanism constituted by a gear wheel and a rack.
  • the rack is associated to the bolt, the gear wheel is actionable in rotation, typically by a common lock barrel: the activating of the cylinder by the key causes a rotation of the gear wheel and a translation of the rack, which in turn determines the displacement of the bolt.
  • the displacement of the bolt by means of the mechanical activating means presupposes the inversion of the mechanical chain constituted by the worm screw and the nut: the bolt and the nut become motors, while the worm screw becomes the driven organ.
  • This is mechanically possible thanks to the step and angle properties of the thread on the worm screw, but in any case the worm screw has to be free to rotate about its own axis.
  • blockage and jamming can take place between the gears of the gear-reducer, and the electric motor itself can jam, blocking the rotor.
  • activating the bolt using the mechanical means is impossible as the worm screw is not free to rotate about its own longitudinal axis. This risk is totally unacceptable, for reasons of safety, and constitutes a severe limitation to the possibilities of use of motorised locks of known type.
  • the main aim of the present invention is to provide a motorised lock that allows a displacement of the bolt into the open position even when the worm screw is blocked, thus obviating almost entirely the risks of jamming or blocking of the bolt in the closed position.
  • the motorised lock of the present invention comprises at least a bolt 2, which can be displaced between an open position and a closed position.
  • the positions which the bolt 2 can take up are thus described in reference to the possibility or impossibility of opening a door or similar element on which the lock is mounted.
  • the bolt 2 can be, for example, mobile between a closed position, in which it projects with respect to the door by a portion thereof which is sufficient to engage it in a seating made in a fixed structure, such as a wall or a door frame, and an open position in which the bolt 2 is not engaged in the seating.
  • the open and closed positions can of course be differently defined.
  • the motorised lock comprises first means 4, 5 for activating the bolt 2, which means comprise a worm screw 4, having a longitudinal rotation axis x, and a nut 5 coupled with the worm screw 4.
  • the worm screw 4 preferably receives drive from an electric gear reducer 40 which is schematically represented in figure 1.
  • the nut 5 is associated to the bolt 2 in such a way that a rotation of the worm screw 4, by inducing a displacement of the nut 5 along the longitudinal axis x, causes a consequent displacement of the bolt 2.
  • Figure 1 shows a preferred embodiment of the lock, in which the bolt 2 moves along a vertical direction (with reference to the orientation of the figure).
  • the nut 5 is associated to a bent edge 10a of a plate 10 which connects the nut 5 to the bolt 2.
  • the nut 5, the plate 10 and the bolt 2 are slidable along a vertical direction which is parallel to the longitudinal axis x of the worm screw 4, but it is obviously possible to use any mechanism of known type which changes the orientation of the movement direction of one of these elements.
  • the lock further comprises second means 7, 11-15 for activating the bolt 2, which comprise a mechanism predisposed to activate the bolt 2 to displace it.
  • the second means 7, 11-15 are mechanical, in order at least to enable displacement of the bolt into the open position should the gear reducer 40 be faulty.
  • the mechanical means for activating preferably comprise a mechanism constituted by a gear wheel 11 and a rack 12.
  • the rack 12 is associated to the bolt 2 by means of the plate 10 and a mobile element 7.
  • the gear wheel 11 is activatable in rotation, typically by a usual lock barrel 14 which acts on a geared sector 15 enmeshing with the gear wheel 11.
  • the activating of the barrel 14 by the key causes a rotation of the gear wheel 11 and a translation of the rack 12 which in turn causes a displacement of the bolt 2 by means of the plate 10 and the mobile element 7.
  • the nut 5 can change configuration between a coupled configuration, in which it is coupled with the worm screw 4, and an uncoupled configuration, in which it is not coupled with the worm screw 4 and it is freely slidable along the worm screw 4 itself.
  • the nut 5 comprises a first body 51, provided with a housing 52.
  • a housing 52 In this housing 52 at least two spheres 53 are housed, which spheres 53 project from the housing 52 in such a way as to be slidable along the thread of the worm screw 4, realising a coupling between the worm screw 4 and the nut 5.
  • the thread of the worm screw 4 is not shown in the figures.
  • the nut 5 further comprises a second body 54.
  • the second body 54 is provided with striker surfaces 55 predisposed to be positioned in contact with the spheres 53 and to prevent a free rotation of the spheres 53 about the longitudinal axis x of the worm screw 4.
  • the second body 54 is mobile between an engaged position (figures 2, 2a and 2b), in which the striker surfaces 55 are in contact with the spheres 53, and a disengaged position (figures 3, 3a) in which the striker surfaces 55 are not in contact with the spheres 53, which are therefore free to rotate about the longitudinal axis x of the worm screw 4.
  • the engaged position of the second body 54 determines the coupling configuration of the nut 5 with respect to the worm screw 4, the disengaged position of the second body 54 determines the uncoupled configuration of the nut 5 with respect to the worm screw 4.
  • Elastic means 56 preferably a helix spring, are predisposed to keep the second body 54 in the engaged position.
  • the first body 51 is provided with a through-hole in which the worm screw 4 is longitudinally arranged.
  • the first body 51 and the through-hole exhibit a cylindrical shape which is coaxial to the longitudinal axis x of the worm screw 4.
  • the though-hole is delimited by a lateral surface 57 on which the housing 52 for the spheres 53 is housed.
  • the housing 52 is conformed as an annular channel, open on the lateral surface 57 of the through-hole.
  • a channel 58 is also afforded on the lateral surface 57, which channel 58 is arranged parallel to the longitudinal axis x of the worm screw 4.
  • the channel 58 is preferably a through-channel passing through a lateral wall of the first body 51.
  • the second body 54 is slidable with respect to the first body 51 in a parallel direction to the longitudinal axis x of the worm screw 4.
  • the second body 54 is provided with a prismatic appendage 59, which is positioned internally of the channel 58 of the first body 51.
  • the prismatic appendage 59 is laterally delimited, at least for a tract thereof, by the striker surfaces 55 and is arranged so that, at the engaged position of the second body 54, the striker surfaces 55 are at least partially facing the housing 52 of the first body 51.
  • the second body 54 is preferably of an annular shape and is arranged coaxially externally of the first body 51.
  • the prismatic appendage 59 extends longitudinally in a parallel direction to the longitudinal axis x of the worm screw 4 and preferably exhibits, at least in the tract laterally delimited by the striker surface 55, a wedge-shaped transversal section.
  • the second body 54 is slidable along an upper tract of the first body 51.
  • the prismatic appendage 59, and in particular the portion laterally delimited by the striker surfaces 55, is housed internally of the through channel 58 of the first body 51 and projects at least partially internally of the through-hole delimited by the lateral surface 57.
  • Figures 2, 2a and 2b show the engaged position of the second body 54. In this position the striker surfaces 55 are at least partially facing the housing 52 of the first body 51. In this position, a rotation of the worm screw 4 which draws with it the spheres 53 is not possible, as apart from a determined settling angle, the spheres 53 are arranged in a striking position against the striker surfaces 55.
  • Figures 3 and 3a illustrate the disengaged position of the second body 54.
  • the striker surfaces 55 are external of the housing 52 of the first body 51.
  • the worm screw 4 is free to rotate with respect to the nut 5, as the spheres 53 can rotate freely internally of the housing 52 about the longitudinal axis x of the worm screw 4, or equivalently the nut 5 can freely slide along the worm screw 4.
  • Figure 3a also shows a tract of guide 59a of the prismatic projection 59 which slides along a channel made in an external surface of the first body 51.
  • the tract of guide 59a of the prismatic appendage 59 is contiguous to the tract laterally delimited by the striker surfaces 55.
  • the second body 54 is provided with two prismatic appendices 59, which are arranged in diametrically opposite positions with respect to the longitudinal axis x of the worm screw 4 and are housed in respective channels 58.
  • the lock of the present invention also comprises means for commanding the change of configuration, coupling or non-coupling of the nut 5 with the worm screw 4.
  • the means for commanding are operatively associated with the second means 7, 11-15 for activating the bolt 2, so that an activation of the second means 7, 11-15 induces an action of the means for commanding.
  • the means for commanding comprise a mobile element 7, mechanically associated to the second means for activating the bolt 2, which mobile element 7 is predisposed to interact with the nut 5, moving between at least a non-operative position, in which it does not interact with the nut 5, and an operative position, in which it displaces the second body 54 into the disengaged position.
  • the mobile element 7 is constituted by a shaped plate which is mobile on a parallel plane to the movement plane of the plate 10. The mobile element 7 is drawn along a parallel direction to the longitudinal axis x of the worm screw 4, at least in one direction, by the rack 12 activated by the cylinder 14.
  • the mobile element 7 exhibits a prismatic projection 71 predisposed to enter into contact with the prismatic appendage 59 of the second boy 54 at least in the operative position of the mobile element 7 itself.
  • the second means 7, 11-15 for activating the bolt 2, or by rotating the barrel 14 there is an upwards translation of the rack 12 (reference is made to an action aimed at bringing the bolt 2 from the closed position to the open position without having recourse to the use of the first means for activating 5, i.e. the worm screw 4 and the nut 5).
  • the translation of the rack 12 pushes the mobile element 7 upwards.
  • the prismatic projection 71 of the mobile element 7 enters into contact with the prismatic appendage 59 of the second body 54 of the nut 5.
  • the upwards run of the mobile element 7 brings the second body 54 of the nut 5 into the disengaged position and thus the nut 5 into the disengaged position with respect to the worm screw 4.
  • the mobile element 7 strikes the bent edge 10a of the plate 10. In these conditions, the further translation of the rack 12 pushes upwards the mobile element 7 and the plate 10, displacing the bolt 2 from the closed position into the open position.
  • the lock of the invention offers important advantages. It is simple to realise, economical and extremely precise and reliable in operation.
  • An important advantage of the lock is its safety, as it enables the bolt to be moved into the open position even where the worm wheel is jammed, thus practically entirely removing risks of jamming or blocking of the bolt in the closed position. This makes the locked particularly versatile, as thanks to its safety of use it can be used for a whole range of various applications.

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  • Transmission Devices (AREA)
EP04425925A 2004-12-17 2004-12-17 Motorisierter Verschluss Withdrawn EP1672149A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04425925A EP1672149A1 (de) 2004-12-17 2004-12-17 Motorisierter Verschluss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425925A EP1672149A1 (de) 2004-12-17 2004-12-17 Motorisierter Verschluss

Publications (1)

Publication Number Publication Date
EP1672149A1 true EP1672149A1 (de) 2006-06-21

Family

ID=34932937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04425925A Withdrawn EP1672149A1 (de) 2004-12-17 2004-12-17 Motorisierter Verschluss

Country Status (1)

Country Link
EP (1) EP1672149A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045419A1 (de) * 2007-10-04 2009-04-08 van Parys, Remi Emiel Mechanismus zum Verschließen eines Fensters oder einer Tür in einer Verschlussstellung
EP2078809A2 (de) * 2008-01-10 2009-07-15 ASSA Abloy Ltd. Verriegelungsvorrichtung
CN102661087A (zh) * 2012-05-25 2012-09-12 烟台三环科技有限公司 无机械钥匙锁具
WO2014108263A1 (de) * 2013-01-14 2014-07-17 Kfv Karl Fliether Gmbh & Co. Kg Verschluss
US8800402B2 (en) 2010-03-04 2014-08-12 Vingcard Elsafe As Motor mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159238A1 (de) * 1984-03-20 1985-10-23 Ecia - Equipements Et Composants Pour L'industrie Automobile Elektromechanishe Schlossbedienung und Kraftfahrzeugtürschloss damit versehen
DE3504273A1 (de) * 1984-03-31 1986-08-14 I F M Internationale Fluggeräte und Motoren GmbH, 6940 Weinheim Tuerschloss
DE3521392A1 (de) * 1985-06-14 1986-12-18 C. Ed. Schulte Gmbh, 5620 Velbert Schloss zum verriegeln von tueren, fenstern od.dgl.
EP1283318A1 (de) * 2001-08-11 2003-02-12 Aug. Winkhaus GmbH & Co. KG Verriegelungseinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159238A1 (de) * 1984-03-20 1985-10-23 Ecia - Equipements Et Composants Pour L'industrie Automobile Elektromechanishe Schlossbedienung und Kraftfahrzeugtürschloss damit versehen
DE3504273A1 (de) * 1984-03-31 1986-08-14 I F M Internationale Fluggeräte und Motoren GmbH, 6940 Weinheim Tuerschloss
DE3521392A1 (de) * 1985-06-14 1986-12-18 C. Ed. Schulte Gmbh, 5620 Velbert Schloss zum verriegeln von tueren, fenstern od.dgl.
EP1283318A1 (de) * 2001-08-11 2003-02-12 Aug. Winkhaus GmbH & Co. KG Verriegelungseinrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2045419A1 (de) * 2007-10-04 2009-04-08 van Parys, Remi Emiel Mechanismus zum Verschließen eines Fensters oder einer Tür in einer Verschlussstellung
BE1017775A3 (nl) * 2007-10-04 2009-06-02 Parys Remi E Van Mechanisme voor het vergrendelen van een raam of deur in een gesloten stand.
EP2078809A2 (de) * 2008-01-10 2009-07-15 ASSA Abloy Ltd. Verriegelungsvorrichtung
EP2078809A3 (de) * 2008-01-10 2013-08-07 ASSA Abloy Ltd. Verriegelungsvorrichtung
US8800402B2 (en) 2010-03-04 2014-08-12 Vingcard Elsafe As Motor mechanism
CN102661087A (zh) * 2012-05-25 2012-09-12 烟台三环科技有限公司 无机械钥匙锁具
WO2014108263A1 (de) * 2013-01-14 2014-07-17 Kfv Karl Fliether Gmbh & Co. Kg Verschluss

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