Title: Fluid pressure operated disc brake with piston expansion means to compensate for brake shoe wear

Abstract: A disc brake unit embodying a pair of adjusting members confined in an opening between the application piston and a thrust member carried by the application piston for transmitting the brake application forces to the disc brake shoes. The adjusting members are contiguous along their adjacent frontal faces from which projects a plurality of inclined surfaces that coact to expand the adjusting members axially when relative rotation is imparted to the adjusting members, as by springs acting peripherally therebetween. The springs are only able to effect such rotation of the adjusting members when the space in which these members are confined is enlarged due to the thrust member being held stationary by a cramp ring when the piston is returned to release position following a brake application during which brake shoe wear occurred.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Reinecke, Erich (Beinhorn, DT)

Application Number: 656439
Filing Date: 1976-02-09
Publication_date: 1977-05-31
Assignee: WABCO Westinghouse GmbH (Hannover, DT)
Primary Class(es): 188/71.9 188/196BA
Other Classes:
US Patent Ref:

3292740	Dec, 1966	Swift	188/71.
3550732	Dec, 1970	Beller	188/196.
3811540	May, 1974	Knapp et al.	188/196.

Other Refs:
Primary Examiner: Reger, Duane A.
Assistant Examiner:
Attorney: McIntire, Jr.; R. W.