Three section pad in caliper disc brakes

Details Three section pad in caliper disc brakes Three section pad in caliper disc brakes

1995-10-30

1997-04-15

Graham, Matthew C.

Brakes

Wheel

Axially movable brake element or housing therefor

188240, F16D 6504

Patent

active

056200633

ABSTRACT:
A disc brake caliper is made to receive a series of pads extending circumferentially of the disc. Each pad is pressurised by a pair of pistons including a smaller piston located radially outwardly and a larger piston located radially inwardly. All of the pistons and cylinders are connected together for common hydraulic pressurization. The arrangement provides better distribution of the braking force, and greater equalization of pad wear. The relatively greater area of pistons as compared to the pad area also contributes towards more even braking force, whilst the smaller diameter pistons and cylinders, as compared to what would be necessary if only a single piston and cylinder were used, enables shorter cylinder length and hence a slimmer and lighter caliper without risk of pistons tilting and jamming.

REFERENCES:
patent: 2904138 (1959-09-01), Wilson
patent: 3605967 (1971-09-01), Warren et al.
patent: 3605968 (1971-09-01), Ely
patent: 3698519 (1972-10-01), Crossman
patent: 5103939 (1992-04-01), Schroeter
patent: 5477944 (1995-12-01), Bryan et al.

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