公开(公告)号：EP0527041A3

公开(公告)日：1995-02-15

申请号：EP92307148.4

申请日：1992-08-05

申请人： SONY CORPORATION

发明人： Narita, Hisaya, c/o Sony Corporation

IPC分类号： G11B15/44 ,  G11B15/093

CPC分类号： G11B15/093 ,  G11B15/1883 ,  G11B15/29 ,  G11B15/442 ,  G11B15/50 ,  G11B15/67584 ,  G11B25/063

摘要： A tape recorder including a limiter gear mechanism having a torque limiter (19); a driving device for rotationally driving the limiter gear mechanism in a forward or reverse direction; a swing lever swingably provided between a pair of reel bed gears, the swing lever having a gear train adapted to be normally rotated by the limiter gear mechanism and also having a depressed portion; a magnetic head supporting member (55,56) for supporting a pair of magnetic heads adapted to be selectively operated according to a tape travelling direction, the magnetic head supporting member being movable so as to selectively move one of the magnetic heads between an operative position where the one of the magnetic heads is in contact with a tape and an inoperative position where the one of the magnetic heads is in separation from the tape; a direction lever for selecting the tape travelling direction and controlling movement of the magnetic head supporting member so as to selectively restrict movement of the other magnetic head to the operative position; and a mode lever (60) adapted to be moved among a neutral position, a record position and a playback position, the move lever biasing the magnetic head supporting member to the operative position of the one of the magnetic heads when the mode lever is moved to the record position or the playback position; whereby when the magnetic head supporting member is biased by the mode lever to move the one of the magnetic heads to the operative position according to the tape travelling direction selected by the direction lever, the magnetic head supporting member urges the depressed portion of the swing lever to swing the swing lever and bring the gear train into mesh with one of the reel bed gears according to the tape travelling direction. Accordingly, the number of parts can be reduced, and a space for iristalling a mechanism for driving the reel bed gears can be made small.

摘要翻译： 一种包括限制器齿轮机构的磁带录音机，该限制器齿轮机构具有转矩限制器（19） 驱动装置，用于沿正向或反向旋转驱动限制器齿轮机构; 可摆动地设置在一对卷轴床齿轮之间的摆动杆，所述摆动杆具有适于通过所述限制器齿轮机构正常旋转的齿轮系并且还具有凹陷部分; 一个用于支撑一对磁头的磁头支持部件，该磁头适于根据磁带行进方向选择性地操作，该磁头支持部件是可移动的，以便使磁头之一选择性地在一个工作位置 其中所述磁头中的一个与磁带接触以及所述磁头中的所述一个与所述磁带分离的非工作位置; 方向杆，用于选择磁带行进方向并控制磁头支撑部件的移动，从而选择性地限制另一磁头移动到工作位置; 和适于在中性位置，记录位置和回放位置之间移动的模式杆（60），当模式杆移动时，移动杆将磁头支撑构件偏置到磁头之一的操作位置 到记录位置或回放位置; 由此当磁头支撑件被模式杆偏置以根据由方向杆选择的磁带行进方向将一个磁头移动到工作位置时，磁头支撑件推动摆动杆的凹陷部分 使摆动杆摆动并根据带行进方向使齿轮系与一个卷轴床齿轮啮合。 因此，可以减少部件的数量，并且可以减小用于驱动卷筒床齿轮的机构的空间。

公开(公告)号：EP0527041A2

公开(公告)日：1993-02-10

申请号：EP92307148.4

申请日：1992-08-05

申请人： SONY CORPORATION

发明人： Narita, Hisaya, c/o Sony Corporation

IPC分类号： G11B15/44 ,  G11B15/093

CPC分类号： G11B15/093 ,  G11B15/1883 ,  G11B15/29 ,  G11B15/442 ,  G11B15/50 ,  G11B15/67584 ,  G11B25/063

摘要： A tape recorder including a limiter gear mechanism having a torque limiter (19); a driving device for rotationally driving the limiter gear mechanism in a forward or reverse direction; a swing lever swingably provided between a pair of reel bed gears, the swing lever having a gear train adapted to be normally rotated by the limiter gear mechanism and also having a depressed portion; a magnetic head supporting member (55,56) for supporting a pair of magnetic heads adapted to be selectively operated according to a tape travelling direction, the magnetic head supporting member being movable so as to selectively move one of the magnetic heads between an operative position where the one of the magnetic heads is in contact with a tape and an inoperative position where the one of the magnetic heads is in separation from the tape; a direction lever for selecting the tape travelling direction and controlling movement of the magnetic head supporting member so as to selectively restrict movement of the other magnetic head to the operative position; and a mode lever (60) adapted to be moved among a neutral position, a record position and a playback position, the move lever biasing the magnetic head supporting member to the operative position of the one of the magnetic heads when the mode lever is moved to the record position or the playback position; whereby when the magnetic head supporting member is biased by the mode lever to move the one of the magnetic heads to the operative position according to the tape travelling direction selected by the direction lever, the magnetic head supporting member urges the depressed portion of the swing lever to swing the swing lever and bring the gear train into mesh with one of the reel bed gears according to the tape travelling direction. Accordingly, the number of parts can be reduced, and a space for iristalling a mechanism for driving the reel bed gears can be made small.

摘要翻译： 一种磁带录音机，包括具有扭矩限制器的限幅器齿轮机构; 驱动装置，用于沿前后方向旋转地驱动限制齿轮机构; 摇摆杆可摆动地设置在一对卷轴床齿轮之间，所述摆动杆具有适于由所述限制齿轮机构正常旋转并且还具有凹部的齿轮系; 磁头支撑构件，用于支撑根据磁带行进方向选择性地操作的一对磁头，所述磁头支撑构件可移动，以便选择性地将所述磁头中的一个移动到所述磁头之一 磁头与磁带接触，磁头与磁带分离的不工作位置; 用于选择磁带行进方向并控制磁头支撑部件的移动的方向杆，以便选择性地限制另一个磁头的运动到操作位置; 以及适于在中立位置，记录位置和重放位置之间移动的模式杆，当模式杆移动到记录时，移动杆将磁头支撑构件偏压到一个磁头的操作位置 位置或播放位置; 由此当磁头支撑构件被模式杆偏压以根据由方向杆选择的带行进方向将一个磁头移动到操作位置时，磁头支撑构件推动摆动杆的凹陷部分 摆动摆杆，使齿轮系根据胶带行进方向与一个卷轴齿轮啮合。 因此，可以减少部件数量，并且可以使用于卷绕用于驱动卷轴床齿轮的机构的空间较小。

公开(公告)号：EP0527041B1

公开(公告)日：1998-12-23

申请号：EP92307148.4

申请日：1992-08-05

申请人： SONY CORPORATION

发明人： Narita, Hisaya, c/o Sony Corporation

IPC分类号： G11B15/44 ,  G11B15/093

CPC分类号： G11B15/093 ,  G11B15/1883 ,  G11B15/29 ,  G11B15/442 ,  G11B15/50 ,  G11B15/67584 ,  G11B25/063