| 摘要 |
SUMMARY A hydraulic bicycle brake is kept free of leakage thanks to the fact that a hollow body is utilized, consisting of an elastic encasement (7) connected on one side with the brake piston (17) and on the other side with the inlet flange (18), having a connection to a master cylinder by means of a fluid line; whereat due to this connection of piston (17), encasement (7) and inlet flange (18) there isn't any loss of fluid and the loads due to pressure and strain exerted onto the elastic part of the hollow body respectively in the transition zone: piston bottom - encasement and solid piston bottom,have less effects than observed for common pot-like shaped diaphragm seals,becaus of shear-, compression- and tensile forces as well as bending moments being by their distribution on the different materials respectively their connection of less influence, thanks to this make, comprising two different materials and thus foreseeing greater security, better durability and longer service life.
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