发明名称 Cutter blade assembly for weed and grass trimmers
摘要 A lawn trimmer has a cutting blade that is formed entirely of a flexible elastomer material, such as polyurethane. The cutting blade is a generally flat, circular plate, having a rim and a plurality of cutting teeth extending outwardly from the rim. The rim has an outer diameter, with the teeth extending outwardly from the outer diameter, and an inner diameter which defines a central opening. A securing plate is used to mount the cutting blade to the lawn trimmer. The securing plate has a central portion secured to the lawn trimmer and an outer portion that overlies the rim of the cutting blade. Various embodiments are disclosed for fixedly attaching the securing plate to the rim of the cutting blade.
申请公布号 US4300336(A) 申请公布日期 1981.11.17
申请号 US19790073923 申请日期 1979.09.10
申请人 ECHO, INCORPORATED 发明人 MIYATA, HIROMASA
分类号 A01D34/73;(IPC1-7):A01D55/18 主分类号 A01D34/73
代理机构 代理人
主权项
地址