发明申请
- 专利标题: Reel lock mechanism of tape cassette and tape cassette
- 专利标题(中): 磁带盒和磁带盒的卷轴锁定机构
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申请号: US11061638申请日: 2005-02-22
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公开(公告)号: US20050139707A1公开(公告)日: 2005-06-30
- 发明人: Hiroshi Fujii , Sunao Kushiro , Shuichi Ota , Takashi Ota
- 申请人: Hiroshi Fujii , Sunao Kushiro , Shuichi Ota , Takashi Ota
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 优先权: JPP2001-161715 20010530; JPP2001-176548 20010612
- 主分类号: G11B23/04
- IPC分类号: G11B23/04 ; G11B23/087
摘要:
Each lock portion (15) has a front portion (23) including an anchoring pawl (24) and a back portion (25) extending in a direction opposite to the front portion. Therefore, when a slider (14) withdraws, each back portion comes into contact with the inside surface of a back wall (10) of a cassette shell (4) and each lock portion rotates in an unlocking direction. A bottom surface (109) defining each recess between engaging teeth (107) has a central portion which protrudes in a chevron shape. A corner of each protrusion has tapered surfaces (110′) and (110″). An anchoring pawl of each lock portion has a flat surface that comes into contact with one inclined surface (109′) of a chevron-shaped portion of any one of the recesses and one tapered surface (110′) of a protrusion disposed behind the adjacent recess.
公开/授权文献
- US07199976B2 Reel lock mechanism of tape cassette and tape cassette 公开/授权日:2007-04-03