Patent ID: 6029781
Filing Date: 2000-02-29
Classification: F16D

Abstract:
A multi-disc brake comprising:a torque tube having surface portions defining slide key means;a substantially rigid backing plate fixed with respect to the torque tube in the region of one of the ends of the torque tube and extending radially outwardly from the torque tube;a plurality of locating elements spaced around the torque tube axis and projecting from the backing plate in the direction of said axis;a plurality of stator discs located along the torque tube and including an end stator disc and further stator discs between the end stator disc and the other end of the torque tube;a plurality of rotor discs interleaved with the stator discs; andactuator means located at said other end of the torque tube for applying thrust to the discs for producing frictional braking between the discs and for torque to be transmitted from the rotor discs to the stator discs;the said further stator discs beings engaged with said slide key means for movement relative to the torque tube in the direction of said axis and for transmitting torque to the torque tube via the slide key means, and the end stator disc comprising a friction member which is made of frictionable material, which has a face engaged with said backing plate and which has portions defining a plurality of notches open at and extending in from a periphery of the end stator disc at positions spaced around said axis, said plurality of locating elements each being at a distance from said axis for being located adjacent to and just inwards of the periphery of said end stator disc and being engaged in respective ones of said notches for torque to be transmitted from said end stator disc to the backing plate via the locating elements.