发明名称 LEVER HANDLE RETURN SPRING ASSEMBLY
摘要 <p>A lever handle return spring assembly for a cylindrical lock mounted in a bored opening in a door includes support plates on opposite sides of the doo r. The support plates include cylindrically depressed inner regions that extend partially into the bored opening in the door to accommodate return springs a nd reduce the visual thickness of the return spring assembly. Spring housings containing compression springs turn within the support plate inner regions a nd are held in place by cover plates. The support plate, cover plate, spring housing and springs on each side of the door form complete assemblies that a re attached to the door via through-bolts. At least one of the support plates preferably includes lock tabs that connect to the cylindrical lock to preven t rotation of the cylindrical lock relative to the door. The support plate and cover plate are designed for strength when stamped from a flat sheet.</SDOAB ></p>
申请公布号 CA2525959(C) 申请公布日期 2007.06.19
申请号 CA20042525959 申请日期 2004.05.04
申请人 SARGENT MANUFACTURING COMPANY 发明人 ZIMMER, TODD C.;ELLER, DARREN C.;SEYMOUR, DANIEL
分类号 E05B63/20;E05B3/06;E05B15/02;E05C21/00 主分类号 E05B63/20
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