公开(公告)号：US5969900A

公开(公告)日：1999-10-19

申请号：US908729

申请日：1997-08-07

申请人： Kunio Shimizu

发明人： Kunio Shimizu

IPC分类号： G11B15/10 ,  G11B15/18 ,  G11B15/29 ,  G11B15/44 ,  G11B5/008

CPC分类号： G11B15/1883 ,  G11B15/10 ,  G11B15/29 ,  G11B15/442

摘要： The tape drive unit of the present invention is constructed such that the reverse rotation of a motor (16) causes a mode cam (32) to drive for setting any mode of normal play, reverse play, fast forward and rewinding. Thereafter the forward rotation of the motor (16) causes a reel shaft (3) or a reel shaft (4) to rotationally drive according to the mode and a head base (51) is slid in normal play or reverse play modes, to set up a magnetic head and pinch rollers. With such construction, each operation of normal play, reverse play, fast forward and rewinding can be performed without using a plunger or microcomputer, thereby eliminating the fear of troubles due to the plunger malfunction or a microcomputer bug.

摘要翻译： 本发明的带驱动装置的结构使得马达（16）的反向旋转使得模式凸轮（32）驱动以设定正常播放，反向播放，快进和倒带的任何模式。 此后，马达（16）的正向旋转使得卷轴（3）或卷轴（4）根据模式旋转驱动，并且头座（51）以正常播放或反向播放模式滑动，以设定 磁头和夹送辊。 通过这样的结构，可以在不使用柱塞或微型计算机的情况下进行正常播放，反向播放，快进和倒带的各种操作，从而消除了由于柱塞故障或微型计算机故障引起的故障的恐惧。

公开(公告)号：US4225894A

公开(公告)日：1980-09-30

申请号：US961960

申请日：1978-11-20

申请人： Takumi Fulukawa ,  Hisashi Hanzawa ,  Kunio Shimizu

发明人： Takumi Fulukawa ,  Hisashi Hanzawa ,  Kunio Shimizu

IPC分类号： G11B15/48 ,  G11B15/02 ,  G11B15/10 ,  G11B19/02

CPC分类号： G11B15/103 ,  G11B15/02

摘要： A mode change-over mechanism for a recording and/or reproducing apparatus comprises a drive gear which is effective to drive a cam gear upon the release, by energizing of at least one of a plurality of electro-magnets, of a stopper for the cam gear so that a cam on the latter can effect a longitudinal displacement, in one direction, of a detecting slide which is thereafter spring urged to return to an original position, a plurality of selecting slides individually movable in response to energizing of respective ones of the electro-magnets for selectively limiting the return movement of the detecting slide toward the original position, mode establishing slides individually displaceable for changing-over the apparatus into respective operating modes thereof, a mode change-over lever positionable by the detecting slide for coupling with a selected one of the mode establishing slides in response to the selective limitation of the return movement of the detecting slide toward its original position, and a drive assembly adapted to be powered from the drive gear for effecting a drive stroke of the mode change-over lever and thereby displacing the mode establishing slide with which the mode change-over lever has been coupled.

摘要翻译： 用于记录和/或再现装置的模式切换机构包括驱动齿轮，该驱动齿轮通过激励多个电磁体中的至少一个而有效地驱动凸轮齿轮，所述至少一个电磁体用于凸轮的止动件 齿轮，使得后者上的凸轮可以在一个方向上实现检测滑块的纵向位移，该检测滑块随后被弹簧推动以返回到原始位置，多个选择滑块可响应于相应的 用于选择性地限制检测滑块朝向原始位置的返回运动的电磁体，模式建立可单独移位的滑块，用于将装置切换到其各自的操作模式;可由检测滑块定位的模式转换杆，用于与 响应于检测幻灯片朝向其原始p的返回运动的选择性限制，选择模式建立幻灯片之一 以及驱动组件，其适于由驱动齿轮供电，以实现模式切换杆的驱动行程，从而移动模式切换杆已经联接的模式建立滑块。