Rockwell Body and Chassis Systems

Meritor Light Vehicle Systems - France

Rockwell Body and Chassis System

Enrico Fin

Pascal Bonduel

Robert J Heckel

Achim R Gier

Pierre Periou

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.

Motorized reduction gear intended in particular for a vehicle electric

This device comprises mechanical link including a pawl (25) establishing a rigid drive link between a driving input member (2) and an output member (22), interacting with a prestressed element (31) which tends to hold the pawl in connection with the driving input member or with the driven output member, for so long as the force transmitted by the pawl remains below a predetermined value; this system automatically interrupts the kinematic drive chain of the movable member in the case of a force exceeding a predetermined value. This arrangement makes the device practically insensitive to friction and eliminates the uncertainty on the threshold of the triggering force.

Safety device for electric window openers

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.

Electrical switch

This safety device for electric window lifters of the Bowden cable (3) type comprises electromechanical means for detecting and measuring the force exerted on the cable (3); a compression spring (11), housed in a sheath (9) coaxial to the cable (3) bears, on the one hand, on a stationary support (8) and, on the other hand, on a tubular component (12) mounted so as to slide inside the sheath (9) and carrying a tab (13) which interacts with an electric switch (14) forming part of an electric circuit for controlling the motor capable of automatically reversing the direction of rotation of the motor when the force (F) exerted on the window and the cable (3) gives rise to a movement of the tubular component (12), which opens the switch (14). This electromechanical safety device is of simple and inexpensive construction.

Safety device for a vehicle electric window lifter with a cable

A safety device for electric glass-winders of the cable type employs a guide rail movably mounted on the door panel of a vehicle so as to be capable of being driven downwardly in vertical translation by the cable upon encountering a force opposing travel of the glass which exceeds a predetermined value. The rail is maintained in its normal position by, for example, a magnet which attracts a tab of ferromagnetic material fixed to the rail. A switch forming part of the electrical supply circuit for the winder motor cooperates with the rail and reverses the direction of rotation of the motor when the rail is displaced from its normal position to a lower position. The electromechanical safety device is inexpensive and simple to manufacture.

Safety device for an electric glass-winder of a vehicle of the type

In a window lifter of the cable type, comprising a motor for driving the cable bearing a slide (6) linked to a second slide (7) supporting the window, the two slides (6, 7) may be coupled via an elastic tension element (16) and one (6) of the slides is fitted with an electrical switch (17), associated with the second slide (7) so as to change state when the load on the slide (7) carrying the window (8) exceeds a predetermined value and when the elastic element (16) undergoes an extension corresponding to the separation between the slides; the switch (17) forms part of an electrical supply circuit for the motor, capable of reversing its direction of rotation when this switch (17) changes state, so as to free the movable member from an obstacle in its path. This electromechanical safety device has a simple structure and a low manufacturing cost.

Growing community of inventors

Paris, France

Enrico Fin