Disc brake and positioning device therefor

Details Disc brake and positioning device therefor Disc brake and positioning device therefor

1982-10-21

1984-07-17

Halvosa, George E. A.

Brakes

Wheel

Axially movable brake element or housing therefor

92 28, 188196P, 192111A, F16D 6552

Patent

active

044600682

ABSTRACT:
A disc brake includes a positioning device (40) which is pressure responsive to control the amount of retraction for a piston (22) within the disc brake. The positioning device includes a plug (44) movably and sealingly carried within the piston (22) and a pair of legs (48, 50). The plug (44) cooperates with the pair of legs (48, 50) to move the latter to a position in spaced relation to a caliper housing (12) when the pressure level within a pressure chamber (28) is above a predetermined value. A spring (52) cooperates with the plug (44) and the pair of legs (48, 50) to engage the latter with the caliper housing (12) when the fluid pressure within the pressure chamber (28) is below the predetermined value.

REFERENCES:
patent: 2259815 (1941-10-01), Greve
patent: 2867194 (1959-01-01), Jensen
patent: 2888104 (1959-05-01), Frayer
patent: 3115220 (1963-12-01), Cagle
patent: 3186521 (1965-06-01), Chouings
patent: 3277983 (1966-10-01), Jeffries
patent: 3312317 (1967-04-01), Hawley et al.
patent: 3371750 (1968-05-01), Schutte et al.
patent: 3467226 (1969-09-01), Belart

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