EP0554913A1 - Serrure de porte de véhicule automobile avec actionneur, destiné à l'activation du levier de sécurité - Google Patents

Serrure de porte de véhicule automobile avec actionneur, destiné à l'activation du levier de sécurité Download PDF

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Publication number
EP0554913A1
EP0554913A1 EP93101963A EP93101963A EP0554913A1 EP 0554913 A1 EP0554913 A1 EP 0554913A1 EP 93101963 A EP93101963 A EP 93101963A EP 93101963 A EP93101963 A EP 93101963A EP 0554913 A1 EP0554913 A1 EP 0554913A1
Authority
EP
European Patent Office
Prior art keywords
lock
lever
control lever
safety control
parts
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.)
Granted
Application number
EP93101963A
Other languages
German (de)
English (en)
Other versions
EP0554913B1 (fr
Inventor
Franco Giovanni Ottino
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.)
Magna Closures SpA
Original Assignee
Magna Closures SpA
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 Magna Closures SpA filed Critical Magna Closures SpA
Publication of EP0554913A1 publication Critical patent/EP0554913A1/fr
Application granted granted Critical
Publication of EP0554913B1 publication Critical patent/EP0554913B1/fr
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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
    • E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
    • E05B77/28—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like for anti-theft purposes, e.g. double-locking or super-locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/40—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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/56—Control of actuators

Definitions

  • the present invention relates to a lock for a vehicle provided with a safety control lever deactivation device.
  • Motor vehicles locks are known to comprise a lever, usually known as safety control lever, movable between a first enable opening position and a second inhibit opening position by means of the outer handle.
  • the safety control lever may be set in the enable opening position from inside the vehicle by operating an appropriate knob connected thereto and, in most cases, also by operating the inner opening control handle.
  • Safety lever disconnecting from within the vehicle is a purely mechanical operation and may be carried out by non-authorized persons, as well, who may have had illegitimate access to the inner control members, for example, by smashing one of the vehicle s windows.
  • the known deactivation devices are generally incorporated in the doorlocking actuator.
  • the doorlocking actuator motor controls, during a first stage of its stroke, the fastening of the lock and, during a second stage, by means of suitable mechanisms, sets the safety lever on an "idle" position where it may not be manually controlled from within the vehicle.
  • the doorlocking actuator comprises two separate motors to control fastening of lock and deactivation of safety lever.
  • the doorlocking actuator is bulky, complex and expensive.
  • the lock ends up by being complicated, from the mechanical point of view, since specific mechanisms must be provided for to carry out safety lever deactivation.
  • both doorlocking actuator and lock must be modified with respect to the equivalent version without dead lock, which entails obvious drawbacks from the point of view of production costs.
  • the aim of the present invention is the embodiment of a lock for a vehicle provided with a safety control lever deactivation device, that may not present such drawbacks as are connected with the known locks and described hereinabove.
  • a lock for a vehicle of the type comprising a safety control lever that is movable between a first enable opening position and a second inhibit opening position at least through manual control means from outside said vehicle, said safety control lever presenting connecting means to manual control means from inside said vehicle, said lock further comprising a deactivation device of said safety control lever, characterized in that said deactivation device is carried by said safety control lever.
  • number 1 indicates a lock for a vehicle in its whole.
  • lock of a known type as concerns mechanical operation, only such parts are shown, as may be necessary to understand the present invention, being experts in the field already acquainted with the remaining parts.
  • Lock 1 comprises a support plate 2, capable of being secured to one door of the vehicle, bearing the lever system carrying out the lock s manifold mechanical functions.
  • a safety control lever 3 and a lever 4, controlling the opening from within the vehicle, are hinged on support plate 2.
  • Lever 3 is hinged on support plate 2 around a pivot 5 and is movable between a first position, shown in Fig. 1 by a full line, in which it enables the opening of the lock by means of a control lever from outside the vehicle (not being shown in the drawing), and a second position, in which the lever controlling opening from outside is idle and, therefore, opening is inhibited.
  • Stability of said two positions of lever 3 is achieved by means of spiral flexure spring 6, constrained to an intermediate side portion 7 of lever 3 and to support plate 2.
  • Lever 3 comprises a control arm 8, capable of being connected with one of its ends, through known transmission means, a safety lever “on” knob being placed in the door inner panel; lever 3 further comprises an operating arm 9, substantially opposed to control arm 8 with respect to pivot 5, which is capable of cooperating with the lock s lever system, not shown in the drawing, so as to inhibit opening from outside the vehicle.
  • Lever 4 is hinged on support plate 2 around a relevant pivot 10 and essentially presents a control arm 11, capable of being connected with an inner door handle through transmission means, that are not shown in the drawing, and a pair of operating arms 12,13.
  • Arm 12 has a cam front surface 14, capable of co-operating with lever 3 to bring it from the safety lever "on” position (dotted position) to the safety lever “off” (shown by the full line) during opening from inside the vehicle.
  • Arm 13 presents an end tooth 15, bent by 90° with respect to the lever plane, which is capable of co-operating with the lock s lever system so as to cause its opening.
  • Lock 1 further comprises device 16, deactivating lever 3, also known as dead lock, whose aim is that of preventing the lever from being operated from inside the vehicle, should the latter happen to be broken into.
  • lever 3 consists of two parts, 3a and 3b, respectively, hinged to each other around hinge pivot 5 to support plate 2 and, therefore, angularly free with respect to each other.
  • part 3a comprises control lever 8 and is therefore connected, during operation, to the safety lever "on” knob; part 3b comprises operating arm 9 and intermediate portion 7.
  • Pivot 5 is carried by part 3a in an integral manner; part 3b is inserted between part 3a and support plate 2 and revolves around pivot 5.
  • Device 16 wholly carried by lever 3, essentially consists in a mechanism, capable of either rigidly connecting parts 3a and 3b and, consequently, control lever 8 and operating arm 9, or else of uncoupling same.
  • device 16 comprises an electric motor 20 housed in a case 21 integral with part 3a of lever 3 and provided with an output shaft 22 on to which an eccentric member 23 is angularly fixed.
  • Device 16 further comprises a pin 24 (Fig. 2) slidable along an orthogonal axis to that of eccentric member 23 in a through seat 25 obtained in said part 3a and capable of engaging a relevant hole 26 on part 3b.
  • Pin 24 is fitted with an end disc 27, which is held in contact with the side surface of eccentric member 23 by a spring 28 coaxial to pin 24 and inserted between part 3a of lever 3 and said disc.
  • device 16 comprises relative angular locating means between parts 3a and 3b of lever 3, shown in their whole by number 30, whose aim is that of securing alignment between seat 25 and hole 26 also in the case in which parts 3a and 3b are angularly free with respect to each other.
  • Said means 30, shown in Fig. 2 and, more clearly, in Fig. 3, essentially comprise a helical flexure spring 31, housed in an annular groove 32 obtained in part 3a of lever 3, around pivot 5.
  • Said pivot 5 presenting, in the area inside groove 31, a circumferential projection with a 180° angular width, delimited by two radial surfaces 34.
  • Part 3b is mounted on pivot 5, bush 35, angularly rigid with part 3b, being inserted therebetween; said bush having an axially cantilevered semicylindrical portion 36 extending towards the interior of groove 32, the latter co-operating with projection 33 and being in turn circumferentially delimited by two radial surfaces 37.
  • Spring 31 presents two end portions 38, bent inwards in a radial direction, co-operating with above-mentioned surfaces 34 and 37. Stiffness of spring 31 is lower than that of spring 6, so as to enable part 3a to rotate with respect to part 3b, without transmitting to the latter such loads, that may cause, in turn, its rotation.
  • Electric motor 20 is connected to a control unit 39, which receives a plurality of input signals, e.g., an enable signal 40 activated upon lock opening with the key or upon opening of doorlocking actuator, and a locking condition detection signal 41 with safety lever insertion from outside, by means of either key or doorlocking control, and is capable of generating a control signal 43 of motor 20 in response to said input signals.
  • a control unit 39 which receives a plurality of input signals, e.g., an enable signal 40 activated upon lock opening with the key or upon opening of doorlocking actuator, and a locking condition detection signal 41 with safety lever insertion from outside, by means of either key or doorlocking control, and is capable of generating a control signal 43 of motor 20 in response to said input signals.
  • Device 16 operates as follows.
  • Part 3a therefore, is "idle" in respect with part 3b and any control being carried out from within the vehicle causes but a rotation of part 3a without affecting part 3b and such lock members, as are downstream thereto.
  • lever 3 acts as a conventional monolithic lever and may be controlled from inside the vehicle, by means of either knob and inner handle.
  • Fig.s 4 and 5 show an alternative embodiment of said deactivation device, indicated, in its whole, by number 45 and described hereinafter by means of the same numbers as the ones utilized hereinabove to describe device 16, in so far as they refer to similar or corresponding parts.
  • Device 45 comprises an electric motor 20 housed in a case 21 rigid with part 3a of lever 3 and fitted with an output shaft 22 defining screw 46.
  • Screw 46 engages a nut 47 that is constrained to translate without rotating inside a prismatic guide 48, integral with case 21.
  • Tapered end 49 of nut 47 is opposed to motor 20, capable of engaging a seat 50, the latter having a corresponding shape defined by a pair of projections 51 rigid with part 3b of lever 3 and bent by 90° with respect to the lie plane of part 3b.
  • device 45 comprises relative angular locating means between part 3a and part 3b of lever 3, shown in their whole by number 53, whose aim is that of securing alignment between nut 47 and seat 49, when parts 3a and 3b are angularly free in respect with each other, as well.
  • Such means 53 comprise, in particular, a couple of helical torsion springs 54 mounted, with a curvilinear axis, inside an annular groove 55 obtained in part 3a of lever 3, coaxial to pin 5 and facing part 3b.
  • Groove 55 is interrupted by a radial wall 56, integral with part 3a.
  • Said springs 54 are inserted, prestressed, between relevant surfaces of wall 56 and of a projection 57 integral with part 3b and slidable inside groove 55; being said springs identical, part 3a is brought back, in the absence of external loads, into a position in which wall 56 is diametrically opposed to projection 57; to such a position there corresponds the alignment condition between screw 47 and seat 50.
  • number 60 shows a further alternative embodiment of the deactivation device.
  • Device 60 very much resembles device 45 described hereinabove and essentially comprises an electric motor 20 housed in a case 21, rigid with part 3a of lever 3 and provided with an output shaft 22 on to which a toothed pinion 61 is angularly fixed.
  • Pinion 61 meshes with rack 62 constrained to slide in a guide 63 along an orthogonal axis with respect to the motor axis.
  • Rack 62 is capable of engaging, by means of its end 64, provided with a pair of side draft chamfers 65, a seat 66 defined by a pair of projections 67, rigid with part 3b of lever 3; such projections are bent by 90° in respect with the lie plane of part 3b and parallel to each other.
  • such a device instead of being integrated in the doorlocking actuator, is wholly carried by safety control lever 3. Consequently, it may be used on any type of locks, on those lacking a doorlocking actuator, as well. Said device may be used without the doorlocking actuator, if any, having to be modified at all, so that it can be regarded as simple, economical and only relatively bulky.
  • lever 3 no modification is to be made on the mechanical members of the lock, the only obvious exception being represented, of course, by lever 3.
  • Said device may be mounted on an already existing lock, as an accessory, simply by replacing monolithic lever 3, of common use, with lever 3 described hereinabove, consisting of two parts 3a and 3b; utmost modularity, as well as noticeable economic advantages, are guaranteed by all other details being thoroughly similar. Since the device in question is not integrated in the doorlocking actuator, a further advantage is represented by the possibility of disconnecting safety lever by means of inside control lever 4.
  • devices 16, 45 and 60 may be obviously modified in such a way, that they may still fall within the scope of protection of the present invention.

Landscapes

  • Lock And Its Accessories (AREA)
  • Mechanical Control Devices (AREA)
EP93101963A 1992-02-06 1993-02-08 Serrure de porte de véhicule automobile avec actionneur, destiné à empêcher toute manipulation du levier de sécurité Expired - Lifetime EP0554913B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO920094 1992-02-06
ITTO920094A IT1257379B (it) 1992-02-06 1992-02-06 Serratura per un veicolo provvista di un dispositivo disattivatore di una leva di comando sicurezza.

Publications (2)

Publication Number Publication Date
EP0554913A1 true EP0554913A1 (fr) 1993-08-11
EP0554913B1 EP0554913B1 (fr) 1998-08-05

Family

ID=11410013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101963A Expired - Lifetime EP0554913B1 (fr) 1992-02-06 1993-02-08 Serrure de porte de véhicule automobile avec actionneur, destiné à empêcher toute manipulation du levier de sécurité

Country Status (4)

Country Link
EP (1) EP0554913B1 (fr)
DE (1) DE69320077T2 (fr)
ES (1) ES2119824T3 (fr)
IT (1) IT1257379B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704266A1 (fr) * 1993-01-15 1994-10-28 Kiekert Gmbh Co Kg Fermeture de porte pour véhicules automobiles avec système de verrouillage protège-enfants.
US5497640A (en) * 1993-07-15 1996-03-12 Nissan Motor Co., Ltd. Door locking system for vehicles
WO2002046557A3 (fr) * 2000-12-07 2003-01-23 Witte Strattec Llc Serrure a loquet maintenu en position de fermeture par un cran d'arret

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594876A1 (fr) * 1986-02-26 1987-08-28 Vachette Sa Dispositif de blocage, en particulier dispositif anti-vol, pour actionneur de serrure ou serrure electrique, notamment pour serrure de porte d'un vehicule automobile, et serrure equipee d'un tel dispositif
FR2635355A1 (fr) * 1988-08-13 1990-02-16 Kiekert Gmbh Co Kg Systeme de fermeture de portes de vehicules automobiles avec commande de verrouillage centralise et antivol
GB2227516A (en) * 1989-01-31 1990-08-01 Bocklenberg & Motte Bomoro Vehicle door latches
DE3938680A1 (de) * 1989-07-22 1991-01-31 Kiekert Gmbh Co Kg Kraftfahrzeugtuerverschluss mit aufgesetzter zentralverriegelungseinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594876A1 (fr) * 1986-02-26 1987-08-28 Vachette Sa Dispositif de blocage, en particulier dispositif anti-vol, pour actionneur de serrure ou serrure electrique, notamment pour serrure de porte d'un vehicule automobile, et serrure equipee d'un tel dispositif
FR2635355A1 (fr) * 1988-08-13 1990-02-16 Kiekert Gmbh Co Kg Systeme de fermeture de portes de vehicules automobiles avec commande de verrouillage centralise et antivol
GB2227516A (en) * 1989-01-31 1990-08-01 Bocklenberg & Motte Bomoro Vehicle door latches
DE3938680A1 (de) * 1989-07-22 1991-01-31 Kiekert Gmbh Co Kg Kraftfahrzeugtuerverschluss mit aufgesetzter zentralverriegelungseinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704266A1 (fr) * 1993-01-15 1994-10-28 Kiekert Gmbh Co Kg Fermeture de porte pour véhicules automobiles avec système de verrouillage protège-enfants.
US5497640A (en) * 1993-07-15 1996-03-12 Nissan Motor Co., Ltd. Door locking system for vehicles
WO2002046557A3 (fr) * 2000-12-07 2003-01-23 Witte Strattec Llc Serrure a loquet maintenu en position de fermeture par un cran d'arret

Also Published As

Publication number Publication date
ES2119824T3 (es) 1998-10-16
IT1257379B (it) 1996-01-15
ITTO920094A0 (it) 1992-02-06
ITTO920094A1 (it) 1993-08-06
EP0554913B1 (fr) 1998-08-05
DE69320077T2 (de) 1999-02-25
DE69320077D1 (de) 1998-09-10

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