Patent ID: 9656638
Date: 2017-05-23
CPC Classifications: B60T,F16D

Claim:
1. A vehicle braking arrangement comprising: a braking plate movable from a rest position with a certain ground clearance to a braking position for contact with the ground, the braking plate including a sealing rim running circumferentially and arranged to at least partially contact the ground in the braking position such that an at least partly enclosed volume then is formed between the braking plate and the ground; and a low pressure container carried by the braking plate for movement therewith and fluidly connected to the volume via a valve assembly, where an air pressure in the low pressure container is below an air pressure of ambient air when the braking plate is in the rest position, the valve assembly arranged to be opened when the braking plate is in the braking position such that air pressure is lowered in the at least partly enclosed volume and the braking plate is pressed against the ground by a conferred pressure difference between air outside the at least partly enclosed volume and air in the at least partly enclosed volume such that a retaining force between the braking plate and the ground is obtained; wherein the valve assembly is disposed in the low pressure container and carried by the braking plate.