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:
Apr. 28, 1987
Filed:
Sep. 15, 1986
Jean-Jacques Carre, Le Raincy, FR;
Pierre Pressaco, La Courneuve, FR;
Societe Anonyme D.B.A., Paris, FR;
Abstract
The subject of the invention is a disc brake with automatic adjustment of the type incorporating a caliper (10) mounted to slide on a fixed support by way of at least one axial pin, a brake motor (34) acting directly on a first friction element (26) and as a result of reaction via the caliper (10) on a second friction element (30). The brake motor (34) incorporates a mechanical control (48, 50, 54) acting on a hydraulic control piston (36) via an automatic-adjustment device. The automatic-adjustment device is formed by a screw (68) -and-nut (88) system of reversible pitch, which is actuated by the piston (36) beyond a predetermined stroke of the latter. According to the invention, a monitoring piston (80) immobilizes a sleeve (114) fixed in rotation to the nut (88), when the hydraulic control pressure reaches a predetermined value. The invention is used for the braking of motor vehicles.