公开(公告)号：EP0198512A1

公开(公告)日：1986-10-22

申请号：EP86105426.0

申请日：1986-04-18

申请人： HITACHI, LTD.

发明人： Osawa, Atsuo ,  Ogiro, Kenji ,  Yokoo, Shouzou ,  Takeda, Hidekazu

IPC分类号： G11B15/665

CPC分类号： G11B15/6653 ,  G11B15/22

摘要： The magnetic recording/reproducing apparatus for recording onto or reproducing from a magnetic tape housed in a cassette by using a rotary magnetic head has tape drawing-out means (6, 8, 9, 55) for winding a portion of the tape (53) between the two reels in the cassette around the rotary magnetic head (2) by a predetermined angle. The magnetic recording/reproducing apparatus has further tape driving means (3, 57) for feeding the magnetic tape at a constant speed, reel driving means (24) for driving either one of the two reels so as to take up the magnetic tape in the reel driven by the reel driving means, and braking means (18,19, 20) for braking the rotation of the reels. Each of the above described means is selectively actuated by a ring-shaped cam operating member (64) provided in the outer peripheral surface or the inner peripheral surface thereof with cam surfaces each for effecting the operation of the respective means in response to the mode of operation of the magnetic recording/reproducing apparatus. The selective operation is specifically determined by the rotational position of the ring-shaped cam operating member, and the rotational position is varied in response to the mode of operation. Detecting means (62, 72) for detecting the rotational positions is provided in the ring-shaped cam operating member.

摘要翻译： 用于通过使用旋转磁头记录在磁带上的磁带或从其再现的磁记录/重放装置具有用于卷绕磁带（53）的一部分的磁带引出装置（6,8,9,55） 在旋转磁头（2）周围的盒中的两个卷轴之间以预定角度。 磁记录/再现装置具有用于以恒定速度馈送磁带的另外的磁带驱动装置（3,57），用于驱动两个卷轴中的任一个的卷轴驱动装置（24），以便将磁带卷入 由卷轴驱动装置驱动的卷轴以及用于制动卷轴旋转的制动装置（18,19,20）。 上述装置中的每一个由设置在外周表面或其内周表面中的环形凸轮操作构件（64）选择性地致动，凸轮表面各自用于响应于各自的模式来执行各个装置的操作 磁记录/重放装置的操作。 选择性操作具体由环形凸轮操作构件的旋转位置确定，并且旋转位置响应于操作模式而变化。 用于检测旋转位置的检测装置（62,72）设置在环形凸轮操作构件中。

公开(公告)号：EP0105501B1

公开(公告)日：1989-09-20

申请号：EP83109817.3

申请日：1983-09-30

申请人： HITACHI, LTD.

发明人： Yokoo, Shouzou

IPC分类号： G11B15/66 ,  G11B15/18

CPC分类号： G11B15/6653 ,  G11B15/1883

公开(公告)号：EP0198512B1

公开(公告)日：1990-08-01

申请号：EP86105426.0

申请日：1986-04-18

申请人： HITACHI, LTD.

发明人： Osawa, Atsuo ,  Ogiro, Kenji ,  Yokoo, Shouzou ,  Takeda, Hidekazu

IPC分类号： G11B15/665

CPC分类号： G11B15/6653 ,  G11B15/22

公开(公告)号：EP0105501A3

公开(公告)日：1986-03-12

申请号：EP83109817

申请日：1983-09-30

申请人： HITACHI, LTD.

发明人： Yokoo, Shouzou

IPC分类号： G11B15/66 ,  G11B15/18

CPC分类号： G11B15/6653 ,  G11B15/1883

摘要： A magnetic recording and reproducing apparatus such as a video tape recorder has a first gear mechanism, a second gear mechanism, an operation cam rotable by power of the first gear mechanism, tape operation driving mechanisms actuated by the operation cam, a tape loading mechanism driven by the power of the second gear mechanism, and a driving power transmission change-over mechanism for transmitting the torque of a motor selectively to the first and second gear mechanisms.

摘要翻译： 诸如录像机之类的磁记录和再现设备具有第一齿轮机构，第二齿轮机构，通过第一齿轮机构的动力可旋转的操作凸轮，由操作凸轮致动的磁带操作驱动机构，被驱动的磁带加载机构 通过第二齿轮机构的动力以及将马达的转矩选择性地传递到第一和第二齿轮机构的驱动动力传递切换机构。

公开(公告)号：EP0105501A2

公开(公告)日：1984-04-18

申请号：EP83109817.3

申请日：1983-09-30

申请人： HITACHI, LTD.

发明人： Yokoo, Shouzou

IPC分类号： G11B15/66 ,  G11B15/18

CPC分类号： G11B15/6653 ,  G11B15/1883

摘要： A magnetic recording and reproducing apparatus such as a video tape recorder has a first gear mechanism, a second gear mechanism, an operation cam rotable by power of the first gear mechanism, tape operation driving mechanisms actuated by the operation cam, a tape loading mechanism driven by the power of the second gear mechanism, and a driving power transmission change-over mechanism for transmitting the torque of a motor selectively to the first and second gear mechanisms.