发明授权
- 专利标题： Hub of a tape cassette
- 专利标题（中）： 磁带盒的中枢
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申请号： US552027申请日： 1983-11-15
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公开(公告)号： US4511099A公开(公告)日： 1985-04-16
- 发明人: Eiichi Nunokawa , Toshihiko Ishida , Yasuo Ohira
- 申请人： Eiichi Nunokawa , Toshihiko Ishida , Yasuo Ohira
- 申请人地址： JPX Tokyo
- 专利权人： TDK Corporation
- 当前专利权人： TDK Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX57-180042[U] 19821130
- 主分类号： G11B23/087
- IPC分类号： G11B23/087 ; G11B23/037 ; B65H75/18 ; B65H75/28
摘要：
A hub of a tape cassette comprising a generally circular outer ring portion (6), an inner ring portion (8) concentric with the outer portion and a generally annular rib (10) connecting the outer and inner ring portions, wherein said annular rib is formed so that its wall thickness increases continuously from a position (A) adjacent to a gate portion (G) for injection molding towards a portion (B) most apart from the gate portion, along the circumferential direction.
公开/授权文献
- US5112190A Sheet-metal centrifugal pump casing 公开/授权日：1992-05-12
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