Method for manufacturing a drum brake shoe
AssigneeThe Bendix Corporation
InventorDonald D. Johannesen
Life of this patent
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Abstract
A method for manufacturing a drum brake shoe comprises the steps of providing a strip of material, forming a plurality of connected blanks with the strip, bending each blank to form an arcuate surface with adjoining sides, cutting one of the blanks by serving a connecting link and trimming the one blank to form a contour for the adjoining sides. Thereafter, a friction lining is attached to the arcuate surface.
Claims8
A method for manufacturing a drum brake shoe having an arcuate outer surface carrying a friction lining and an inner abutment cooperating with a hydraulic actuator, comprising the steps of:
- (a) providing a flat strip of material;
- (b) forming a plurality of blanks on said flat strip of material, said plurality of blanks being connected to each other by links;
- (c) bending said plurality of blanks to define the arcuate outer surface on each of the blanks, said bending step also forming a pair of sides for the blanks extending from the arcuate surface to the respective links;
- (d) cutting one of said blanks from the remaining plurality of blanks;
- (e) trimming said one blank to remove the links therefrom and also to form the inner abutment on said one blank;
- and
- (f) attaching the friction lining to said one blank after it is bent and trimmed.
The method of manufacturing a drum brake shoe with a friction lining attached thereto, in which a strip of material is fed through a press or a number of presses, said press or number of presses performing the following steps:
- (a) forming a plurality of blanks with connecting links between each blank;
- (b) bending each of said blanks to form an arcuate surface adapted to engage the friction lining, said bending simultaneously forming a pair of side flanges extending transversely from the arcuate surface to a pair of the links, respectively;
- (c) cutting at least one of said plurality of blanks from the remaining plurality of blanks such that said one blank is separated at one of its links from the remaining plurality of blanks;
- and
- (d) trimming said one blank to separate the links from said one blank.
Dependencies are inferred from the claim text.