A VEHICLE LOW PRESSURE BRAKE ARRANGEMENT

摘要

The present invention relates to a vehicle braking arrangement (6) comprising a braking plate (7) connected to a vehicle (1) by a link arm (8).The braking plate (7) is movable from a rest position to a braking position where contact is made with the ground (4), and comprises a sealing rim (9) arranged to at least partially contact the ground (4) such that an at least partly enclosed volume (10) is formed. The vehicle braking arrangement (6) comprises an expandable chamber (11, 11'), formed between a lower plate (7, 28), at least one connecting side wall (25, 34) and an upper plate (26, 33), which chamber is connectable to the volume (10). Upon activation, the chamber's volume is expanded by means of the lower plate (7, 28) being moved away from the upper plate (26, 33). Then the pressure is lowered in the volume (10) which results in that the braking plate (7, 7') is pressed against the ground (4). In this way,a retaining force is obtained.