专利名称：SPRING RETAINER OF INTERNAL
COMBUSTION ENGINE
发明人：YAMADA TORU,FUJIMOTO YOSHINORI 申请号：JP18576485
申请日：19850826
公开号：JPS6245915A
公开日：
19870227
spring framework是哪个公司专利内容由知识产权出版社提供
摘要：PURPOSE:To get a spring retainer, which is light and mechanically strong, and has abrasion resistance, by forming the spring retainer out of a light metal which is mixed with reinforcing short fibers, and forming a plating on the surface of this spring retainer. CONSTITUTION:A spring retainer 1 is formed out of a light metal 7, in the shape of a ring with a flange 8, and also the inner circumferential rim of the central hole 6 of this retainer 1, is formed thicker than the flange 8. Then, the light metal 7 as a base metal is mixed with many reinforcing short fibers 10. After that, a plating 11 which is constituted of dispersing plating is formed over the whole surface of the spring retainer 1. In this way, the mechanical strength of the spring retainer 1 can be raised, as the longitudinal elastic modulus of the light metal 7 is increased by the reinforcing short fibers 10. Moreover, hardness of the surface of the spring retainer 1, with which the end surface of a valve spring contacts with pressure, can be raised by the plating 11. Accordingly, the spring retainer 1, which is light and mechanically strong, and has abrasion resistance, can be got.
申请人：YAMAHA MOTOR CO LTD
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