| 摘要 |
In a rotary flywheel skid sensing device for a vehicle hydraulic braking system a flywheel assembly is driven from a braked wheel, and has a flywheel member, a reaction member and a ball and ramp mechanism co-operating with the two members and operative, on relative angular movement of the members when the deceleration of the braked wheel exceeds a predetermined value, to cause relative axial movement of the members to actuate means for modulating the brake pressure. The flywheel assembly is driven by and located on a collar driven by the wheel, with the ball and ramp mechanism located in complementary conical surfaces on the flywheel and reaction members. The reaction member is supported on the collar to locate the assembly rotationally and axially, and drive is transmitted from the collar to the assembly through a clutch provided by a direct engagement between the collar and the reaction member.
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