Rockwell Body and Chassis Systems

Jean-Marc Belmond

Philippe Ottolini

Parking brake for vehicle, of the type comprising a lever (1) articulated onto a spindle (2) integral with a base (3) designed to be solidly attached with the chassis of the vehicle, which lever is connected to at least one actuation cable (7), and means for locking the lever in a predetermined angular position; the lever includes an element (9) for linkage with the cable, and the end of the base (3) contiguous to the articulation spindle of the lever is profiled so as to form a ramp (11) for limiting the displacement of the said linkage element during operations of the lever, this ramp being limited by a stop (11b) for retaining the lever in a raised brake actuation position and being positioned at the end of the base opposite the entry of the cable. This brake requires for its operation only a limited force from the user, less than the forces normally necessary on conventional brakes with toothed sectors and pawls.

Hand lever parking brake for motor vehicle, having reduced operating

This brake comprises a lever (1) articulated onto a pin (2), a soleplate (3) and a toggle joint mechanism (8) connected to the application cable (9); this mechanism (8) includes a connecting rod which is articulated onto the lever (1), the end of the cable (9) being connected to the end of the connecting rod (10) through the use of a balance bar (11) which can be moved translationally in a direction parallel to the cable (9). The mechanism (8) considerably decreases the forces for applying and releasing the brake. On application, the lever (1) is brought into abutment on the soleplate (3) so that the direction of the force (P) in the connecting rod (10), which force is brought about by tensioning the cable (9), passes above the pin (2), which keeps it in the applied position. A push-rod (16), subjected to a return force (F) and sliding inside the lever (1) automatically provides safety locking of the brake in the position for keeping it applied.

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Saint-Die, France

Jean-Marc Belmond