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公开(公告)号:US4903224A
公开(公告)日:1990-02-20
申请号:US168777
申请日:1988-03-16
申请人: Tohru Namiki , Fumio Matsui , Kouji Shimoda , Yosiaki Fuse
发明人: Tohru Namiki , Fumio Matsui , Kouji Shimoda , Yosiaki Fuse
CPC分类号: G11B7/26 , B29C66/474 , G11B23/0035 , G11B7/24097 , B29C65/08 , B29C66/73151 , B29C66/8322 , B29K2995/007 , B29L2017/005
摘要: An optical information recording disk having an improved eccentricity and reduced center hole wear. A metal plate lamination hub member is inserted into and fixed in a central hole in the substrate of the disk. The metal plate lamination member is formed of a metal plate and a resin hub member having center holes dimensioned and aligned such that the center hole in the metal plate forms the center hole of the disk. The metal plate and the resin hub member are attached to one another by ultrasonic welding. The metal plate may have a hardened layer at least around its center hole.
摘要翻译: 一种光学信息记录盘,其具有改善的偏心率和减小的中心孔磨损。 金属板层叠轮毂构件插入并固定在盘的基板的中心孔中。 金属板层叠部件由金属板和具有中心孔的树脂毂部件形成,该中心孔的尺寸设计成使得金属板中的中心孔形成盘的中心孔。 金属板和树脂轮毂构件通过超声波焊接彼此附接。 金属板可以至少在其中心孔周围具有硬化层。