PARKING BRAKE MECHANISM OF A VEHICLE COMPRISING AN ELECTRO-PNEUMATIC EMERGENCY RELEASE MECHANISM

摘要

The invention relates to a parking brake mechanism (2) of a utility vehicle, comprising at least one spring brake cylinder (6) and a first parking brake circuit (4) with a reservoir pressure container (14) and a first control valve mechanism (8) which ventilates or bleeds the at least one spring brake cylinder (6). The invention is characterized in that, in the event of the failure of the first parking brake circuit (4), an additional electro-pneumatic parking brake circuit (26) with an additional, separate reservoir pressure container (28) and an additional control valve mechanism (30) comprising at least one magnetic valve (32; 46) at least ventilates the spring brake cylinder (6) in the event of emergency release. At least the additional control valve mechanism (30) is located in direct proximity of the at least one spring brake cylinder (6).