公开(公告)号：US4672477A

公开(公告)日：1987-06-09

申请号：US781576

申请日：1985-09-30

申请人： Itsuo Kato ,  Tetsuro Kamimura ,  Kaoru Takemasa ,  Junichi Onishi

发明人： Itsuo Kato ,  Tetsuro Kamimura ,  Kaoru Takemasa ,  Junichi Onishi

IPC分类号： G11B15/02 ,  G11B5/55 ,  G11B15/18 ,  G11B15/44 ,  G11B15/675 ,  G11B5/54

CPC分类号： G11B5/5517 ,  G11B15/1883 ,  G11B15/442 ,  G11B15/67555

摘要： A cassette deck which can be easily miniaturized while being capable of being manufactured at a reduced cost. The cassette deck includes a head stand reciprocably mounted to be able to move in a direction perpendicular to the tape running direction. A magnetic head is mounted on the head stand and is rotatable between two positions about an axis parallel to the direction of movement of the head stand. A tape-running-direction switching unit selects the tape running direction according to the angular position of the head. A head stand driving mechanism is provided including a first gear rotated to reciprocate the head stand. A head rotating mechanism includes a second gear which when rotated rotates the magnetic head. Torque is applied to the first and second gears from a single drive source.

摘要翻译： 一种可以容易地小型化并且能够以低成本制造的盒式甲板。 盒式甲板包括可往复运动地安装成能够在垂直于磁带运行方向的方向上运动的磁头架。 磁头安装在头架上，并且可绕平行于头架移动方向的轴线在两个位置之间旋转。 磁带运行方向切换单元根据磁头的角位置选择磁带运行方向。 一种头架驱动机构，其包括旋转以使头架往复运动的第一齿轮。 磁头旋转机构包括当旋转磁头旋转时的第二齿轮。 扭矩从单个驱动源施加到第一和第二齿轮。

公开(公告)号：US4227223A

公开(公告)日：1980-10-07

申请号：US954881

申请日：1978-10-26

申请人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

发明人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

IPC分类号： G11B15/10 ,  G11B15/18 ,  G11B15/675 ,  G11B15/44 ,  G11B19/26

CPC分类号： G11B15/10 ,  G11B15/1883

摘要： An automatic repeat mechanism for a cassette tape recorder is disclosed which comprises a fast feed unit for selectively transmitting rotational force to a take-up or supply reel base in response to actuation of a fast forward or rewind lever; means for biasing the fast feed unit into cooperation with the supply reel base to provide rewind operation; means for positively displacing the fast feed unit to a neutral position against the biasing force during the playback operation; and means for detecting the end of tape supply. During the playback operation, the positive displacing means keeps the fast feed unit in the neutral position. After the detecting means detects the end of tape supply, the detecting means functions to cancel the positive displacing means, thereby allowing the biasing means to move the fast feed unit into the rewind position.

摘要翻译： 公开了一种用于盒式磁带录音机的自动重复机构，其包括用于响应于快进或快退杆的致动而选择性地将旋转力传递到卷取机或供带盘座的快速进给单元; 用于将所述快速进给单元偏置成与所述供应卷轴基座配合以提供倒带操作的装置; 用于在回放操作期间克服偏压力将快速进给单元正向移位到中立位置的装置; 以及用于检测磁带供应结束的装置。 在播放操作期间，正位移装置将快速馈送单元保持在中立位置。 在检测装置检测到磁带供应的结束之后，检测装置用于取消正位移装置，从而允许偏压装置将快速进给单元移动到倒带位置。

公开(公告)号：US4228472A

公开(公告)日：1980-10-14

申请号：US954883

申请日：1978-10-26

申请人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

发明人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

IPC分类号： G11B15/10 ,  G11B15/18 ,  G11B15/675 ,  G11B27/22 ,  G11B15/44 ,  G11B19/26

CPC分类号： G11B15/10 ,  G11B15/1883

摘要： An interval detection and drive mechanism for a cassette tape recorder is disclosed which comprises an electrical circuit for detecting the interval between recorded tunes in the tape; tape drive control means shiftable between a fast forward or rewind state and a playback state; a lock plate associated with the detecting circuit and with the playback, fast forward and rewind levers; and means for moving the playback lever to the playback position. Upon detection of the interval between tunes during the fast forward or rewind operation, the detecting circuit delivers a detection signal such that the control means is shifted from the fast forward or rewind state to the playback state and the playback lever is moved to the playback position. The tape recorder is changed into the playback operation which is visually represented by the retracted playback lever.

摘要翻译： 公开了一种用于盒式录音机的间隔检测和驱动机构，其包括用于检测磁带中记录的曲调之间的间隔的电路; 磁带驱动控制装置可在快进或快退状态与重放状态之间移动; 与检测电路相关联的锁定板以及回放，快进和倒带杆; 以及用于将播放杆移动到播放位置的装置。 在检测到快进或快退操作期间的音调之间的间隔时，检测电路传送检测信号，使得控制装置从快进或快退状态转移到回放状态，并且播放杆被移动到播放位置 。 磁带录音机变成由缩回播放杆视觉表示的播放操作。

公开(公告)号：US4219852A

公开(公告)日：1980-08-26

申请号：US954881

申请日：1978-10-26

申请人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

发明人： Yoshihiro Magata ,  Kobun Yoshida ,  Itsuo Kato

IPC分类号： G11B15/10 ,  G11B15/18 ,  G11B15/675 ,  G11B5/54 ,  G11B15/24

CPC分类号： G11B15/10 ,  G11B15/1883

摘要： An improved cassette tape recorder is disclosed in which a cam disc is used to move a head carriage between intermediate and recording/playback positions. When a playback, record or stop lever is pushed, a solenoid is energized to displace a lock arm to disengage the lock arm from a toothed cam plate integral with the cam disc, thus allowing the cam disc to rotate a half turn. A set plate for controlling pinch roller and take-up units is also operatively connected to the cam disc. The pinch roller is brought into contact with a capstan and a rotating shaft of the take-up unit is brought into engagement with a take-up base at the same time when the head carriage is shifted from the intermediate to the recording/playback position in response to the half turn of the cam disc. A lever arm connects the playback lever and the set plate so that the playback lever is moved into the playback position when the set plate is in contact with the smallest lobe of the cam disc, that is, during the recording operation.

摘要翻译： 公开了一种改进的盒式磁带录像机，其中使用凸轮盘来在中间和记录/播放位置之间移动头部托架。 当按下回放，记录或停止杆时，螺线管通电以使锁定臂移位，以将锁定臂从与凸轮盘一体的齿形凸轮板脱离，从而允许凸轮盘旋转半圈。 用于控制夹送辊和卷取单元的固定板也可操作地连接到凸轮盘。 夹头辊与主导轴接触，并且当头托架从中间件移动到记录/播放位置时，卷取单元的旋转轴与卷取基座接合， 响应凸轮盘的半圈。 杠杆臂连接播放杆和设置板，使得当设定板与凸轮盘的最小凸角接触时，即在记录操作期间，播放杆移动到播放位置。