EP0119133B1 - Elektrisches Kraftfahrzeugtürschloss - Google Patents

Elektrisches Kraftfahrzeugtürschloss Download PDF

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Publication number
EP0119133B1
EP0119133B1 EP19840400437 EP84400437A EP0119133B1 EP 0119133 B1 EP0119133 B1 EP 0119133B1 EP 19840400437 EP19840400437 EP 19840400437 EP 84400437 A EP84400437 A EP 84400437A EP 0119133 B1 EP0119133 B1 EP 0119133B1
Authority
EP
European Patent Office
Prior art keywords
motor
lever
pawl
bolt
lock
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
Application number
EP19840400437
Other languages
English (en)
French (fr)
Other versions
EP0119133A1 (de
Inventor
Vincent Bernard
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.)
Compagnie Industrielle de Mecanismes CIM
Original Assignee
Compagnie Industrielle de Mecanismes CIM
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 Compagnie Industrielle de Mecanismes CIM filed Critical Compagnie Industrielle de Mecanismes CIM
Publication of EP0119133A1 publication Critical patent/EP0119133A1/de
Application granted granted Critical
Publication of EP0119133B1 publication Critical patent/EP0119133B1/de
Expired 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
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • 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
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/7107—And alternately mechanically actuated by a key, dial, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18576—Reciprocating or oscillating to or from alternating rotary including screw and nut

Definitions

  • the present invention relates to a lock for the door of a motor vehicle, of the type with electric opening.
  • the functions to be performed are generally: opening, closing, locking the lock from inside and outside the vehicle, and locking “children” on the rear doors.
  • the attachment points of the control members are imposed and linked to each type of vehicle.
  • the locks with known electric opening system have a relatively complex and therefore expensive structure, since they require either means for reversing the supply voltage of the motor, or a clutch capable of isolating the motor. the rest of the kinematics of the lock, when the latter is open in order to allow it to be locked on the next closure.
  • the object of the invention is therefore to propose a lock of the electric opening type which remains operational in the event of a power failure, regardless of when this failure occurs in the opening-closing cycle, the structure of which is simplified with respect to to that of known electric locks, and is therefore substantially less expensive.
  • this lock must be integrated into a system comprising an electric control ensuring the locking-unlocking functions.
  • the lock targeted by the invention comprises a bolt pivotally mounted on a support plate of a housing, a pawl also pivotally mounted on the plate and adapted to cooperate with the bolt so as to keep it in the closed position under the action of an elastic member, a lever rotatably mounted on the plate and capable of being driven in rotation by an electrical system for controlling the opening of the lock to tilt the pawl against the opposing stress of its member elastic return, releasing the bolt and a strike inserted in the latter.
  • the electrical system for controlling the opening comprises a motor of sufficient power to overcome the resistance of the elastic return member of the pawl and of low reversibility torque, and an elastic element interposed between the motor and the pawl drive lever, this element being put under elastic stress by the motor and being able to relax elastically when the latter is no longer under tension, in order to return the motor to its initial position, the lever and the pawl being elastically returned to their initial position, after release of the bolt and its pivoting to its open position.
  • the elastic return element of the opening control kinematics is a spiral spring mounted coaxially on a shaft driven by the output shaft of the motor, with one end fixed to this shaft and its other end secured to the support plate, and the motor shaft is connected to the lever by means ensuring the tilting of the latter and of the pawl in the direction which releases the bolt when the motor is running and sets the spiral spring under pressure.
  • the low reversibility torque of the motor allows the use of a return spring, preferably of the spiral type, which has the particular advantage of presenting a torque varying little for large strokes.
  • FIG. 1 is a perspective view of an embodiment of the lock for the door of a motor vehicle covered by the invention, in the open position on the edge of the door, as well as the corresponding keeper mounted on the body of the vehicle and associated with the lock.
  • Figure 2 is an elevational view of the lock of Figure 1, without its upper housing or its emergency control in the event of a power failure, in the closed position with the strike engaged in the bolt.
  • Figure 3 is a side elevational view of the lock according to III-III of Figure 2, with representation of the mechanical emergency control.
  • FIG. 1 shows a lock 1 mounted on a door 2 of a motor vehicle, and which cooperates with a keeper 12 fixed to a body upright 19, this keeper being composed of a folded sheet 13 and a pin 16, the sheet 13 being fixed to the upright 19 by two screws 15.
  • the lock 1 comprises a bolt 20 pivotally mounted on a support plate 10 fixed on the inner edge of the door 2 by screws 11 screwed into threaded collars 14 of said front support plate 10, which constitutes a part of a housing in which are housed all the constituent parts of the lock, and the upper part of which has not been shown.
  • This housing contains retention elements, namely the bolt 20 and a pawl 3 pivotally mounted on the plate 10 around axes 17, 18.
  • the bolt 20 has two arms 20a, 20b defining between them a notch , and the edge of the door 2 has a transverse notch 50, which is adapted as well as the notch of the bolt 20 to receive the pin 16 of the striker 12 when the door 2 of the vehicle is closed.
  • the pawl 3 is provided with a lug or pin 3b and a lower spoiler 3a, and it is constantly elastically stressed by a spring 21 which tends to rotate it around its axis 18 counterclockwise, coming from lean on one or other of the arms 20a, 20b of the bolt 20, depending on whether the lock is in the "full closing" position (arm 20a) or "first security” (arm 20b). It is thus seen in Figure 2 that when the lock is closed, and that the pin 16 is therefore housed in the notch of the bolt 20, the spoiler 3a of the pawl 3 cooperates with a ramp of the end 20a or 20b to maintain the bolt 20 locked, and this under the stress of the elastic member 21.
  • the lock further comprises an opening control mechanism which itself comprises a lever 4 pivotally mounted around a stud or pin 22 secured to the housing not shown.
  • the lever 4 is provided with an end flat 4a capable of cooperating with the pin 3b in order to tilt the pawl 3 clockwise against the elastic stress of the spring 21 when the lever 4 is itself rotated in this direction.
  • the lever 4 is additionally provided, on the side opposite to the flat 4a, with a folded tongue 4b which can cooperate with a nut 5 mounted fixed in rotation and movable in translation on a screw 6 fixed by any suitable means to the support plate 10.
  • These parts are dimensioned so that if the nut 5 is moved from one end to the other of the screw 6, for example from left to right in FIGS. 1 and 2, this nut causes the lever 4 to be correlatively rotated by through the tab 4b.
  • the opening control mechanism also comprises an electromechanical system which is more particularly the subject of the invention, and which has the function of controlling the movements of the nut 5 on the screw 6.
  • This electromechanical system comprises a motor electric 9 fixed to the upper part of the support plate 10, a reduction gear train or shaft 7 providing the connection between the motor 9 and the nut 5, and an elastic member for returning the nut 5 to its initial position , constituted in this example by a spiral spring 8 capable of actuating the gear train 7 and the motor 9 in opposite directions after stopping the latter.
  • the motor 9 is direct current, its electrical supply being provided by a connector 23 with the interposition of two tabs 24, 25.
  • This motor can be triggered by an electrical contact 26 located on an external face of the door 2, or by a contact electric 27 placed inside the door, connected to the motor 9 by connections not shown.
  • a motor pinion 9a is fixed to the end of the output shaft of the motor 9, and is engaged with a toothed wheel 7a secured to a shaft 7c, on the end of which is coaxially mounted the spiral spring 8. A end of the latter is secured to the shaft 7c, while its other end is fixed by any suitable means to the upper part of the support plate 10.
  • the shaft 7c also carries a pinion 7b which meshes with a wheel 6a coaxial with the screw 6, which it can rotate in one direction or the other, depending on the direction of rotation of the output shaft of the motor 9, depending on whether the driving force is supplied by the motor 9 or the spring 8.
  • a torsion spring 29 mounted in a manner known per se, constantly biases the lever 4 in rotation counterclockwise, so that the tongue 4b is constantly in contact with the nut 5, and towards a stop stop 28 secured to the housing.
  • the return spring 21 tends to return the pawl 3 downward anti-clockwise, in abutment on the lever 4 via the pin 3b forming part of this pawl ( Figure 2).
  • the lock is completed by an emergency control device comprising a lever 31 (FIG. 3) articulated on a wing 10a of the plate 10 by an axis 30.
  • One end 31 a of the lever 31 is in contact with the lower surface of a terminal spout 3c of the pawl 3 in order to allow the raising thereof in a clockwise direction, when a rod 33 is articulated on the opposite end of the lever 31.
  • the lock is closed ( Figure 2) and in case failure of the power supply system, it is thus possible to raise the pawl 3 by pulling on the rod 33, so as to release the bolt 20 from the retaining spoiler 3a, and to allow the opening of the lock by tilting the bolt and striker extraction 12.
  • the motor 9 is chosen so that for a supply voltage of 12 volts, its motor torque is greater than 25 mm / N, and its reversibility torque is less than 2 mm / N.
  • the spring 8 relaxes and then drives in reverse rotation the shaft 7 which drives the motor 9 also in reverse rotation by means of the pinions 7a, 9a, as well as the screw 6 by means of the pinion 7b. and wheel 6a.
  • the nut 5 is therefore returned to its original position to the left (shown in FIG. 2), in abutment against a stop 41 secured to the plate 10.
  • the torsion spring 29 brings the lever 4 counterclockwise at the same time in abutment against the part 28, and the torsion spring 21 brings the pawl 3 down, in abutment on the lever 4 via the pawn 3b.
  • buttons 26 and 27 If the control system is in the locked position, an action on the buttons 26 and 27 does not cause the power supply to the motor 9, and the lock remains closed.
  • the lock remains closed.
  • the spring 8 returns the kinematics 5, 6, 7 to its position corresponding to the closed door 2, the spring 29 brings the lever 4 counterclockwise into abutment on the stop 28 secured to the housing, and the pawl 3 remains in the position it occupied at the time of the breakdown.
  • the door in the event of a breakdown of the electrical supply system, the door can still be closed and opened from inside the vehicle. Only the opening from the outside of the vehicle requires the supply of a source of electrical energy for troubleshooting. The inviolability of the vehicle therefore does not depend on the proper functioning of the electrical supply.
  • the spiral spring 8 can be replaced by a suitably chosen torsion spring, mounted directly on the screw 6 and capable of rotating it in the opposite direction, as well as the train of learnings 7 and the motor 9, after the 'opening the lock and stopping the engine.
  • the lock according to the invention is compact, at a reduced cost price thanks to the simplicity of its structure and its kinematics, without its bulk being greater than that of traditional mechanical locks.
  • the retention elements of this lock are able to withstand high stresses, while its control mechanism, which supports low stresses, is made with a maximum of plastic materials, which reduces the manufacturing cost of the lock.
  • the latter is housed in a relatively waterproof housing which reduces the influence of frost in winter.

Landscapes

  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Claims (3)

1. Schloss für die Tür (2) eines Kraftfahrzeugs mit einem schwenkbar auf einer Trägerplatte (10) eines Gehäuses angebrachten Riegel (20), mit einer ebenfalls schwenkbar auf der Platte angeordneten und mit dem Riegel (20) derart zusammenwirkenden Sperrklinke (3), dass sie ihn unter der Wirkung eines elastischen Organs (21) in Schliessstellung hält, mit einem drehbar auf der Platte angebrachten Hebel (4), der durch ein elektrisches Steuersystem zur Öffnung des Schlosses in Drehung versetzbar ist, um die Sperrklinke (3) zur Freigabe des Riegels (20) entgegen der entgegengesetzt wirkenden Belastung ihres elastischen Rückholorgans (21) zu verkippen, und mit einer in den Riegel (20) eingeführten Schliesskappe (12), dadurch gekennzeichnet, dass das elektrische Steuersystem zur Öffnung einen Motor (9) umfasst, der von ausreichender Leistung ist, um den Widerstand des elastischen Rückholorgans (21) der Sperrklinke (3) zu überwinden, und ein schwaches Umkehrdrehmoment besitzt, und ein zwischen den Motor (9) und den Antriebshebel (4) der Sperrklinke (3) eingefügtes, elastisches Element (8), das vom Motor (9) unter elastische Belastung versetzt wird und sich elastisch entspannen kann, wenn letzterer nicht mehr unter Spannung steht, um den Motor (9) in seine Ausgangsstellung zurückzuholen, wobei der Hebel (4) und die Sperrklinke (3) nach Freigabe des Riegels (20) und seiner Verschwenkung in seine Offenstellung elastisch in ihre Ausgangsstellung zurückgeführt werden.
2. Schloss nach Anspruch 1, dadurch gekennzeichnet, dass das elastische Rückholelement der Öffnungssteuerkinematik (5, 6, 7) eine Spiralfeder (8) ist, die koaxial auf einer Welle (7c) angeordnet ist, welche ihrerseits von der Ausgangswelle des Motors (9) angetrieben ist, wobei ein Ende der Spiralfeder an dieser Welle fixiert und ihr anderes Ende mit der Trägerplatte verbunden ist, und dass die Welle des Motors mit dem Hebel (4) durch Mittel verbunden ist, welche die Verkippung des letzteren und der Sperrklinke (3) in einem Richtungssinn gewährleisten, der den Riegel (20) freigibt, wenn der Motor (9) in Gang ist und die Spiralfeder (8) unter Spannung versetzt, wobei diese Mittel durch die Entspannung der Feder (8) automatisch im umgekehrten Richtungssinn betätigt werden, wenn der Motor (9) nicht mehr unter Spannung ist, und die Rückkehr des Hebels und der Sperrklinke (3) in ihre Ausgangsstellungen gestatten.
3. Schloss nach Anspruch 2, dadurch gekennzeichnet, dass die Verbindungsmittel zwischen der Ausgangswelle des Motors (9) und dem Hebel (4) einen Getriebezug mit einer Schraube (6) umfassen, auf der eine Mutter (5) angebracht ist, die ihrerseits bei Drehung der Schraube gegenüber einer Rotation fixiert, jedoch translatorisch beweglich ist, wobei diese Mutter (5) mit dem Hebel (4) zusammenwirkt, um ihn zur Freigabe des Riegels (20) zu verschwenken, wenn der Motor (9) in Gang ist.
EP19840400437 1983-03-14 1984-03-05 Elektrisches Kraftfahrzeugtürschloss Expired EP0119133B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8304139A FR2542793B1 (fr) 1983-03-14 1983-03-14 Serrure a ouverture electrique, notamment pour portieres de vehicules automobiles
FR8304139 1983-03-14

Publications (2)

Publication Number Publication Date
EP0119133A1 EP0119133A1 (de) 1984-09-19
EP0119133B1 true EP0119133B1 (de) 1986-08-27

Family

ID=9286829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840400437 Expired EP0119133B1 (de) 1983-03-14 1984-03-05 Elektrisches Kraftfahrzeugtürschloss

Country Status (9)

Country Link
US (1) US4624491A (de)
EP (1) EP0119133B1 (de)
JP (1) JPS59177485A (de)
BR (1) BR8401143A (de)
CA (1) CA1228880A (de)
DE (1) DE3460527D1 (de)
ES (1) ES278373Y (de)
FR (1) FR2542793B1 (de)
MX (1) MX160355A (de)

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Also Published As

Publication number Publication date
FR2542793A1 (fr) 1984-09-21
MX160355A (es) 1990-02-12
FR2542793B1 (fr) 1985-07-19
JPS59177485A (ja) 1984-10-08
ES278373U (es) 1985-06-16
EP0119133A1 (de) 1984-09-19
BR8401143A (pt) 1984-10-23
DE3460527D1 (en) 1986-10-02
US4624491A (en) 1986-11-25
CA1228880A (en) 1987-11-03
ES278373Y (es) 1986-02-16

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