发明申请
- 专利标题： REEL, METHOD OF MANUFACTURING THE SAME, AND METHOD OF MANUFACTURING REEL COMPONENT MEMBER
- 专利标题（中）： 卷材，其制造方法以及制造卷材部件的方法
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申请号： US15018865申请日： 2016-02-09
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公开(公告)号： US20160284378A1公开(公告)日： 2016-09-29
- 发明人: Yosuke SUMIYA
- 申请人： FUJIFILM CORPORATION
- 优先权： JP2015-066197 20150327
- 主分类号： G11B15/60
- IPC分类号： G11B15/60 ; B65H75/14
摘要：
A reel comprises a bottomed circular tube shaped hub that has an outer peripheral face for winding a recording tape around; a first flange that is integrally molded to one end portion of the hub; a second flange that is joined to another end portion of the hub; a plurality of hole portions that are provided at equal intervals on a ring shaped reel gear formed at a lower face of a bottom plate of the hub; and a gate mark that is formed at the bottom plate of the hub, further to a radial direction inside than an inner peripheral face of the hub, wherein a difference in surface roughness between a weld portion and a non-weld portion on the outer peripheral face of the hub is 0.25 μm or less.
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