专利名称：Spring assembly and method for manufacturing the same
发明人：Wakamori, Masami,Fueki, Toshie 申请号：EP03023918.0
申请日：20031021
公开号：EP1416186B1
公开日：
20060301
专利内容由知识产权出版社提供
摘要：A manufacturing method of a spring assembly, assembles an annular plate
(1A,1B) and a compression coil spring (2). The method includes forming a protrusion
(4A,4B) having a tapered portion on the annular plate, and inserting a punch (8) including a first portion having a larger diameter than an inner diameter of a tip end of the tapered portion from the tip end side into the protrusion to expand the tip end of the tapered portion. The expansion of the tip end of the tapered portion involves expanding a base portion of the protrusion, which extends the tapered portion and has a larger inner diameter than that of the tip end of the tapered portion, along a surface of an end turn of the compression coil spring.
申请人：PIOLAX INC
spring framework和spring的关系
地址：JP
国籍：JP
代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
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