发明名称 |
Tape reel and tape cartridge having the same |
摘要 |
A tape reel in which molding quality of a flange unit is improved so as to improve reliability at the time when a magnetic tape runs at high speed, and a tape cartridge having the same. A plurality of reference planes (152v) formed between a chucking gear (152b) and an outer peripheral rib (152r2) formed at an outer peripheral side of this chucking gear (152b) are provided separately from the outer peripheral rib (152r2). And the reference plane (152v) is formed with edge planes of each of a first rib (152v1) extending toward a circumference and a second rib (152v2) extending toward a direction crossing the first rib (152v1). According to this arrangement, a volume at a portion constituting the reference plane (152v) is made smaller, occurrence of a sink after a resin is hardened is suppressed, and molding quality of the flange unit (152) is improved so that straight runnability of the magnetic tape at high speed running and reliability in recording/reproducing operation are improved.
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申请公布号 |
US2004089756(A1) |
申请公布日期 |
2004.05.13 |
申请号 |
US20030472126 |
申请日期 |
2003.09.16 |
申请人 |
SANPEI TAKAAKI;KIKUCHI SHUICHI;SASAKI KAZUO;SAKURAI MITSUE;CHIBA HITOMI |
发明人 |
SANPEI TAKAAKI;KIKUCHI SHUICHI;SASAKI KAZUO;SAKURAI MITSUE;CHIBA HITOMI |
分类号 |
G11B23/037;G11B23/04;G11B23/107;G11B23/26;(IPC1-7):G11B23/107 |
主分类号 |
G11B23/037 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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