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Method for manufacturing a drum brake shoe

  • US 5,137,203 A
  • Filed: 05/13/1991
  • Issued: 08/11/1992
  • Est. Priority Date: 05/13/1991
  • Status: Expired due to Term
First Claim
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1. A method for manufacturing a drum brake shoe from parts comprising a brake shoe rim and a brake shoe web, the brake shoe web having along the circumference thereof a plurality of radially extending web projections which extend beyond a circumferential arcuate edge of the brake shoe web, the web projections having adjacent radial recesses for receiving weld splash, comprising the steps of:

  • connecting said brake shoe web with a rotatable first drum of a welding mechanism such that the brake shoe web is positioned firmly,feeding a brake shoe rim between the first drum and a second drum of the welding mechanism such that a planar bottom surface of said rim abuts a radially extending web projection and the rim is disposed orthogonally relative to a longitudinal plane of said web, andoperating said welding mechanism so that the rim is welded to and bent about the circumferential arcuate edge of the brake shoe web, the mechanism effecting a weld at each abutment of a radially extending web projection and the bottom surface of the shoe rim as the first drum rotates the web and attached rim such that the circumferential arcuate edge of the web engages an inner arcuate surface formed from said planar bottom surface.

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