Title:
PISTON SEAL OF HYDRAULIC DISC BRAKE
Document Type and Number:
Japanese Patent JPS5547051
Kind Code:
A
Abstract:
An improved seal is disclosed for hydraulically sealing a piston-cylinder assembly used in activation of a floating caliper disc brake. The improved seal comprises an annular groove circumscribing the cylinder wall within which a ring type elastomeric seal is seated so as to sealingly engage the piston. The floor of the annular groove has a flat portion and sloped portion. By varying the ratio of the flat portion to the sloped portion a desired axial force resisting retraction of the piston into the cylinder may be pre-determined thereby preventing excessive brake shoe drag upon the rotor.
Inventors:
KAATO EICHI RINKAA
ANSONII SHII EBANSU
ANSONII SHII EBANSU
Application Number:
JP9334479A
Publication Date:
April 02, 1980
Filing Date:
July 24, 1979
Export Citation:
Assignee:
KELSEY HAYES CO
International Classes:
F16D55/22; F16J15/18; F16D55/2265; F16D55/227; F16D65/092; F16D65/097; F16D65/14; F16D65/18; F16J15/32; F16D55/00; F16D69/00; F16D69/04; (IPC1-7): F16D65/20; F16J15/16