The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 1986
Filed:
Feb. 15, 1985
Societe Anonyme D.B.A., Paris, FR;
Abstract
The invention concerns a mechanism for actuating a disc brake, incorporating a piston (5) coupled to a brake pad (1), a wedge (12) which is moveable longitudinally, under the action of a control rod (10), between surfaces (5a, 17a) forming part of the piston (5) and of a reaction component (17), respectively, and a pair of rollers (13) situated on each side of the wedge (12) and able to roll between the surfaces (12a, 12b) of the latter and the surfaces of the piston (5) and of the reaction component (17). The space in which the wedge (12) and the rollers (13) move is confined in a closed hydraulic chamber (17). The control rod (10) actuating the wedge forms a penetrating piston which determines variations of volume in this chamber (7) producing a hydraulic thrust upon the piston (5). The corresponding displacement of the latter is slightly greater than that which the wedge (12) would communicate to it mechanically through the intermediary of the roller (13), for the same displacement of the control rod (10).