PARKING BRAKE ACTUATING MECHANISM

摘要

A parking brake actuating mechanism in which a first lever (11) acts on a first brake shoe web (13) and a second lever (15) pivoted on the first lever (11) acts on a second brake shoe web (17). The first lever (11) includes an actuating cable abutment formation (31') against which an actuating cable nipple (28) on the free end of a cable (25) is drawn to move the first lever to increase the effective length of the mechanism and hence move the associated brake shoes. The first lever (11) is of hollow form defining a guide passage (29) which directs the free end of the cable from an aperture (24) in the backplate (23) of the associated brake to a location adjacent the abutment formation (31') to enable the nipple (28) to be engaged with the formation (31'). A portion (11') of the first lever outside the guide passage (29) may guide the cable from the end of the passage towards the abutment formation (31'). The second lever may also be shaped (32) to assist in guiding the nipple (28) into engagement with the abutment formation (31') when the nipple emerges from the end of the passage (29).