发明名称 Hand held tool for facilitating removal and installation of a return spring and rollers in an S-cam type drum brake assembly
摘要 A hand held tool for maintaining an S-cam drum brake assembly includes an elongated middle portion and a first end which is adapted for facilitating removal and installation of the return spring. A notch is provided in the first end for receiving a rigid rod of the return spring and for enabling a surface of the first end to abut an end of one coil of the return spring when the first end is inserted through the pair of the spaced ribs in a brake shoe. An offset portion is formed intermediate the middle portion and the first end of the tool for positioning it for engagement with the coil of the return spring when at least one of the rollers is removed from the drum brake assembly and when the middle portion of the tool abuts an end of the S-cam. An opposed second end of the tool is adapted for facilitating removal and installation of rollers.
申请公布号 US2007199189(A1) 申请公布日期 2007.08.30
申请号 US20070699150 申请日期 2007.01.29
申请人 BUTLER GERALD 发明人 BUTLER GERALD
分类号 B21K5/00 主分类号 B21K5/00
代理机构 代理人
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