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1. 发明授权

US4539669A Front-loading record player 失效
标题翻译：前装录音机
公开(公告)号：US4539669A
公开(公告)日：1985-09-03
申请号：US458590
申请日：1983-01-17
申请人： Tsutomu Miyakawa , Junji Yamane , Masahiro Takagi , Tomoyoshi Arai , Haruhiko Tanaka , Yuji Morita , Satoshi Sakurai
发明人： Tsutomu Miyakawa , Junji Yamane , Masahiro Takagi , Tomoyoshi Arai , Haruhiko Tanaka , Yuji Morita , Satoshi Sakurai
IPC分类号： G11B33/02 , G11B17/04 , G11B17/056 , G11B23/02
CPC分类号： G11B17/056 , G11B17/04
摘要： A front-loading record player comprises a slide base carrying thereon a turntable and movable back and forth with respect to a player cabinet; a driving cam including a front slant retainer section and a rear linear section, the linear section extending in parallel with the moving direction of said slide base and the driving cam being provided on said slide base; a guide cam including a front recess portion and a rear linear portion, the linear portion extending in parallel with the moving direction of the slide base and the guide cam being provided on the player cabinet; and a front door opening/closing drive member for opening and closing a front door of the player cabinet, the drive member being held between the driving cam and the guide cam. The front door opening/closing drive member and the front door are drivingly coupled to each other. The front door opening/closing drive member is driven back and forth and held between the front slant retainer section of the driving cam and the rear linear portion of the guide cam when the slide base is located behind a predetermined position whereas the front door opening/closing drive member is held at a standstill between the linear section of the driving cam and the recess portion of the said guide cam when the slide base is located in front of the predetermined position.
摘要翻译：前装载记录播放器包括：滑动基座，承载有转台并相对于播放器机箱来回移动; 驱动凸轮，其包括前倾斜保持器部分和后直线部分，所述线性部分平行于所述滑动基座的移动方向延伸，并且所述驱动凸轮设置在所述滑动基座上; 引导凸轮，其包括前凹部和后直线部，所述直线部与所述滑动基座的移动方向平行地延伸，所述引导凸轮设置在所述演奏机壳上; 以及用于打开和关闭演播室的前门的前门打开/关闭驱动构件，驱动构件保持在驱动凸轮和引导凸轮之间。前门打开/关闭驱动构件和前门彼此驱动连接。当滑动基座位于预定位置后面时，前门打开/关闭驱动构件来回驱动并保持在驱动凸轮的前倾斜保持器部分和引导凸轮的后直线部分之间，而前门打开/ 当滑动基座位于预定位置的前方时，关闭驱动构件被保持在驱动凸轮的线性部分和所述引导凸轮的凹部之间的静止状态。

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