Abstract: This motorized reduction gear includes a toothed wheel (1) for driving an output member mounted on its hub (4), and one or more damping springs (6) interposed between the wheel (1) and the output member; the damping spring(s) (6) is(are) flat and metal and formed of two flexible branches (7) which are symmetrical with one another with respect to a median plane; each branch includes a convolution, a first section (8) of which extends around the hub (4), is extended by a fold (11), and a second section (9) terminated by a radial segment (12), a flat (13) for bearing on a rib (17) of the wheel (1), and a claw (14) for holding the spring in the wheel (1), around the hub (4). When the window pane comes to rest in abutment at the end of its path, one of the branches (7) is compressed and moves closer to the other, damping out the halting in the rotation of the toothed wheel (1). This(these) spring(s) has(have) a small overall size and high operational stability.

Abstract: Actuator for an electrically operated vehicle door lock has an actuator plunger which is shiftable between first and second positions to lock and unlock the related door latch. The actuator plunger carries a resilient electrical contact element which coacts with one or more fixed contacts on a guide to close one or more respective circuits for operating other parts of the related system and/or signalling the condition of the related lock, such as whether it is locked or unlocked. Preferably the contacts slide into and out of engagement to provide silent operation and self-cleaning wiping action.

Abstract: The window lifter (1) may, for example, be of the twisted cable type (3) driven by a motorized reduction gear (2) wound around return pulleys (4, 5) and sliding in a guide rail (6); a carriage (8) carrying the window pane (9) is fixed to the strand of the cable passing into the rail (6); damping elements (11) such as flat metal springs, for example, are fixed to the ends of the guide rail (6) and to the door panel (7), which makes it possible to damp out a hard impact against an obstacle encountered by the window pane (9).

Abstract: This electrical switch (1) consists of a flat spring, profiled in order to provide both a contact function and a spring function; the flat spring (1) includes a first leg (2) which can be deformed by bearing on a fixed pivot pin (3) of a support (4), and a second leg (5), which can move at the same time as the first leg deforms and whose end (5a) can assume either of two positions for contacting pins (14,15) of an electrical circuit. The switch according to the invention is less bulky than the usual switches by virtue of its flat shape, less expensive to manufacture, because it only consists of a single component, and easy to install on its support.

Abstract: A two buss system to accomplish; 1) communication from contact pairs located at vehicle access points such as a vehicle door or trunk to a central controller; and 2) transmitting current for energization of actuators to implement respective commands such as normal lock or super lock. The contact pairs function to provide entry ports for commands as well as providing status signals of various points of interest. The contact pairs are connected to individual output ports of a counter. Each contact pair is sequentially pulsed by a single pulse of a pulse train provided by the central controller. If a contact pair is engaged or closed when pulsed, the pulse will cause a coincident buss loading to occur. The central controller monitors buss loading and is appraised of the contact status by the coincidence (or lack thereof) of a pulse and a respectively loaded buss.

Abstract: An actuator which is physically secured to the locking mechanism by means of a first electrical connector. The motor of the actuator is provided with power through a second electrical connector which supplies power thereto through the first connector. The second connector also provides connection to a status contactor which provides locked and unlocked status indication. In this manner, the second connector accomplishes a dual function. Consequently, fasteners as required to secure the actuator to the lock mechanism are eliminated. A modular assembly is thus produced in which the interface housing carries a single connector which can be easily connected to the cable harness of the vehicle. Therefore only one electrical connection is required when mounting the lock in the door of the vehicle.

Abstract: The invention relates to a device for monitoring the closure of the opening points of a motor vehicle, in which each opening point is equipped with a closure contact which is connected to a central unit. It is characterized in that the central unit is connected to all the opening points by a single common line (8) with two conductors (31, 32), in that the central unit comprises at least one periodic-signal generator (28) connected to the said two conductors, in that each opening point comprises a passive receiver circuit tuned to the frequency of the periodic signal supplied by the said generator (28) of the central unit, the said passive circuit being connected in series with the closure contact of the said opening point, and in that the said device comprises, furthermore, indicia of a closure fault in response to the variations of the signal generated by the generator in response to the actuation of the corresponding closure contact.

Abstract: The invention relates to a device for the centrallized control of the opening points of a motor vehicle, in which the opening points have electrical actuators, including two locking states, and comprising at least one electric motor, and some opening points have a mechanically controlled device with a lock key sending commands to a central control unit which also receives commands coming particularly from the ignition key and/or from a remote-control set and from an anti-attack button.

Abstract: This geared motor comprises an outlet shaft (2) of the motor (1), carrying two coaxial screws (3, 4) offset axially and of mutually opposed screw pitch, two gearwheels (5, 6) located on either side of the shaft and each interacting with a screw (3, 4), an axle (7, 8) fastened to each gearwheel and extended by a crankpin (9, 11) eccentric relative to the corresponding axle (7, 8) so as to be capable of executing rotations about this axle, an element (12) equipped with a toothing (13) and linked to the crankpins in such a way as, during the rotation of the crankpins, to be driven in a circular translational movement, the radius of which is equal to the eccentricity of the crankpins, and a member (16) equipped with an output shaft (18) connectable to the component to be driven and carrying a toothing (17) interacting with that of the element so as to bring about a rotation of the member (16) in a ratio determined by the difference in the numbers of teeth of the two toothings.

Abstract: This device comprises a motor (1), the output shaft (2) of which carries two coaxial worms (5, 6), offset axially and with opposite pitches, two pairs of wheels, (7, 9, 8, 11) meshing with the worms, mutually in pairs, at the rate of two wheels (7, 8; 9, 11) per worm, which wheels are arranged on either side of the worms, an output shaft (12, 13, 14, 15) traversing each wheel (7, 8; 9, 11) freely and intended to control an associated element at one or other of its opposite ends, and on each shaft (12 . . . 15) and facing each wheel (7 . . . 11), a clutch (E1, E2, E3, E4) independent of the other clutches and adapted in order to be able to link the selected shaft in rotation to the corresponding wheel. This arrangement makes it possible to produce a compact control assembly distributing, from a single location, multiple functions from a lightweight divider box ensuring the switching of the functions, with a reduced overall size and a simplified single connection.

Abstract: In this method, a number N is assigned to transmitted and receiving stations comprising synchronous clocks (2), the coded message being obtained by calculating a time Tie from the time elapsed since the initialization of the clock of the transmitting station, a code Ae1 from N and from Tie in accordance with a first relationship, a code Ae2 from Ae1 in accordance with a second relationship, and the coded message M from N, Tie and Ae2, in accordance with a third relationship.

Abstract: A motor control devise including an auxiliary resistor in series with the motor, a relay, including a coil for activation thereof for shorting the resistor, voltage terminals for determining the current in the auxiliary resistor and the voltage in the supply line, a microprocessor programmed to calculate the sum of the resistance of the supply line and the internal motor resistance, a time delay in energizing the relay for shorting the resistor immediately after the calculation of the resistances, and wherein the microprocessor is programmed to calculate instantaneous values of speed and torque of the motor.

Abstract: The generator comprises means (2) for adjusting and an associated calculator, the adjusting means (2) comprising an endless rotative knob (4) capable of rotating through a given angle of which the position of the element to be controlled is a direct function, and pulse generating means (15, 17) generating a number of pulses which is proportional to the angle of rotation of the knob (4) and means for counting said number, and a selector of the direction of rotation. The calculator is programmed to determine, from the number of pulses counted, a proportion of the path the movable element must travel through realtive to end-of-travel means. The instruction determined by the calculator is then transmitted to a motor driving the movable element and to a position copying device. The invention permits obtaining a fine continuous, or substantially continuous, adjustment by a simple rotation of the knob. Application in particular to the control of opening elements of automobile vehicles.

Abstract: A motor-speed reducer includes a driving input shaft, an output shaft and a deformable coupling coupling the input shaft to the output shaft. The coupling includes a worm and a speed reducer driven by the worm. A sensor is also provided for detecting torque between the input shaft and the output shaft during operation of the device which causes deformation of the coupling. The sensor includes two electrically conductive tracks. One track is associated with an input side of the coupling and the other track is associated with an output side of the coupling. An electrical circuit is connected to the tracks and monitors movement of each track to detect a change in torque as a function of a change in the movement of one of the electrically conductive tracks relative to the other track.

Abstract: The jack (V) comprises a tubular primary screw (10) movable in rotation and translation and provided with an outer screw thread (10a) and an inner screw thread (10b) which have opposite thread hands, a fixed secondary screw (11) engaged in the inner screw thread (10b), a nut (9) connected to the movable element and engaged with the outer screw thread (10a) of the primary screw (10). The nut (9) is composite and comprises a first nut (9a) composed of a plastics material having a good coefficient of friction and a second nut (9b) composed of a mechanically strong material. Axial forces of normal amplitude are absorbed by the plastics nut (9a), while the exceptional overloads, resulting for example from an impact on the front of a vehicle whose seat structure is provided with the jack of the invention, are absorbed by the second nut (9b). In normal operation, the friction between the plastics nut (9a) and the screw (10) are considerably reduced, which provides a jack having an excellent efficiency.

Abstract: The cyclic electromechanical program control comprises an electric motor (6), a gear train (7) driven by the motor and having an impulse gear (26) and an output gear (5) which is engaged with at least one driving rack (3, 4) for an element (1) having a programmable shifting cycle, a driven gear (9) cooperative with the gear train (7) for receiving from the gear train impulses controlling the cycle of the programmable element (1), an electrical circuit (12, 13, 17, 18) associated with the driven gear (9) and adapted to transmit to the motor (6) instructions corresponding to the nature of the impulses received by the driven gear (9). The control further comprises a mechanism for causing th impulse gear (26) to deliver impulses solely in predetermined useful zones of the cycle of said programmable element (1). The gear train (7) is a differential gear train comprising a driving gear (25) without gearing down of the output gear (5).

Abstract: The latch comprises a keeper (2), a fork member (3) provided with two branches (7, 8) for retaining the keeper (2), a catch (9) movable to a position for locking the fork member (3) on the keeper (2), and a control lever (12) for the catch (9) for unlocking the fork member (3). The lever (12) is connected to an outer or inner opening control (13, 14) and is associated with an electric deactivating circuit comprising switches (25, 26) and an electromechanism so arranged that an attempt to open in an unauthorized manner after the deactivation of the door causes the closure of one of the switches (25, 26) and the supply of current to the electromechanism which automatically releases the lever (12) from the catch (9) and prevents the unlocking of the latch by the catch. In the event of a breakdown of the supply battery, the lever (12) remains coupled to the catch (9) and permits the opening of the door. FIG. 1.

Abstract: This device comprises at least one pair of screw-and-nut elements cooperative with the fixed and movable parts in respect of which elements the screw angle is large enough to ensure that the efficiency of the translation to the rotation is slightly positive, and is provided with means for locking the rotary element of the pair after adjustment of the position of the movable part. This system permits the locking of the movable part in the chosen position by a relatively small force as compared to the forces to which the device is subjected. The device is useful for adjusting a table guide of a woodworking machine, or for adjusting a car seat or the seat of a stool.

Abstract: This device comprises elements for fixing it to slides (6) which are longitudinally movable on fixed slides (10), other elements allowing the mounting of a seat (4) carrying a cushion (3) and a backrest (2), and, on each side of the seat structure, a cam (5) interposed between the slide (6) and the seat (4). There are provided in the cam (5) bearing tracks (7, 8) for the cam (5) on the slide (6) for the adjustment of the cam (5) in height. Jacks (12, 13) control the height of the cam (5) and the attitude adjusting movement of the seat (4) relative to the cam. This device permits the obtainment of the exact required attitude path, is of small overall size and avoids practically all play or vibrations.

Abstract: The actuator comprises the following elements:(a) an electric motor (2) capable of driving in rotation a reversible lead-screw (3) on which is mounted a carriage (4) which is freely slidable and mechanically connected to a lever for locking the latch;(b) a nut (6) mounted on the lead-screw (3) within the carriage, prevented from rotating by a guiding of the nut within the carriage and provided, on one hand, with an elastically yieldable element (7) compressible between the carriage (4) and the screw (3) so as to return the nut (6) when the element (7) is compressed, and, on the other hand, with a stud (8) adapted to cooperate with ramps (9, 10, 11, 12) formed on a cam (13) vertically movable in the case by the movement in translation of the nut (6) and the stud (8) controlling the cam (13);(c) the cam (13) is provided with a shoe (15) capable of bolting the carriage (4) in the electrically locked position when it has been displaced to its uppermost position by the stud (8) sliding on the ramps, whereby any ma