公开(公告)号：US06288865B1

公开(公告)日：2001-09-11

申请号：US09266363

申请日：1999-03-11

申请人： Koichiro Hirabayashi ,  Akio Konishi ,  Yoshiyuki Saito ,  Hideaki Kawane

发明人： Koichiro Hirabayashi ,  Akio Konishi ,  Yoshiyuki Saito ,  Hideaki Kawane

IPC分类号： G11B1561

CPC分类号： G11B15/6653

摘要： The magnetic recording/reproduction apparatus of the present invention records/reproduces information on/from a magnetic tape by drawing out the magnetic tape from a tape cassette and allowing the magnetic tape to pass around a rotary head cylinder, having a rotary head, for a predetermined arc. The tape cassette is drawn by moving tape guide members located at an opening of the tape cassette. The recording/reproduction apparatus includes: a first chassis on which the tape cassette is placed; and a second chassis having thereon the rotary head cylinder. The magnetic recording/reproduction apparatus includes: a first state in which the tape cassette is placed on the first chassis by a user; and a second state in which a tape running path enabling recording/reproduction of the magnetic tape is established. The second chassis includes: a capstan shaft mounted thereon for driving the magnetic tape; a pinch roller for pressing the magnetic tape against the capstan shaft; and a pinch arm supporting the pinch roller to be rotatable, the pinch arm being swingably mounter on the second chassis. Due in part to the above, when the magnetic recording/reproduction apparatus shifts from the first state to the second state, the first chassis moves towards the rotary head cylinder, and during the movement of the first chassis towards the rotary head cylinder, the first chassis drives the pinch arm so that the pinch roller moves from the opening of the tape cassette to a vicinity near the capstan shaft.

摘要翻译： 本发明的磁记录/再现装置通过从磁带盒中拉出磁带并使磁带绕着具有旋转磁头的旋转磁头磁头绕过磁带来记录/再现信息，用于 预定电弧。 磁带盒通过移动位于磁带盒的开口处的磁带引导件来拉动。 记录/再现装置包括：第一底盘，盒式磁带放置在其上; 以及在其上具有旋转磁头气缸的第二机架。 磁记录/再现装置包括：第一状态，其中盒式磁带由用户放置在第一机架上; 以及第二状态，其中建立了能够记录/再现磁带的磁带运行路径。 第二底盘包括：安装在其上的主导轴用于驱动磁带; 用于将磁带压靠在主导轴上的夹送辊; 以及支撑所述夹送辊以可旋转的夹持臂，所述夹紧臂可摆动地安装在所述第二底盘上。 由于部分上述原因，当磁记录/再现装置从第一状态转换到第二状态时，第一机架朝向旋转磁头气缸移动，并且在第一机架朝向旋转磁头气缸移动期间，第一机架 底盘驱动夹紧臂，使得夹送辊从带盒的开口移动到靠近主导轴的附近。

公开(公告)号：US06819529B2

公开(公告)日：2004-11-16

申请号：US10181728

申请日：2002-07-22

申请人： Tadashi Ooami ,  Junya Endo ,  Masanori Maehara ,  Masahiro Kiko ,  Tamami Mishiro ,  Kentaro Shingai

发明人： Tadashi Ooami ,  Junya Endo ,  Masanori Maehara ,  Masahiro Kiko ,  Tamami Mishiro ,  Kentaro Shingai

IPC分类号： G11B1561

CPC分类号： G11B5/53 ,  G11B5/10 ,  G11B5/52 ,  G11B5/584

摘要： A head drum device of the present invention prevents a magnetic tape (2) from clinging to the head drum device (3) due to electrostatic charge by using a carbon-containing synthetic resin as the material of an upper drum (33) in order to reduce the manufacturing cost for the upper drum. Also, setting the outside diameter of the upper drum (33) smaller than that of an intermediate drum (32) eliminates the need for a high-level of manufacturing precision in the manufacture of the upper drum (33). Thus, it is possible to reduce the manufacturing cost for the upper drum (33).

摘要翻译： 本发明的磁头鼓装置通过使用含碳合成树脂作为上鼓（33）的材料，防止磁带（2）由于静电而粘附到磁头鼓装置（3），以便 降低上鼓的制造成本。 此外，将上滚筒（33）的外径设定为小于中间滚筒（32）的外径，不需要在制造上滚筒（33）时具有高水平的制造精度。 因此，可以降低上鼓（33）的制造成本。

公开(公告)号：US06421210B1

公开(公告)日：2002-07-16

申请号：US09560726

申请日：2000-04-28

申请人： Takeshi Higuchi

发明人： Takeshi Higuchi

IPC分类号： G11B1561

CPC分类号： H02K5/24 ,  G11B15/28 ,  G11B15/61 ,  G11B25/063 ,  G11B33/08

摘要： A direct driving motor for a videotape deck, in which a motor shaft is directly coupled to the capstan axis, and which is controlled by a PWM control, has a constitution in which a stator core and a deck chassis or a head cylinder are electrically insulated with each other. Also, the motor includes a bearing holder for holding a motor PCB (printed circuit board) one end of which is supported on the deck chassis in an insulating state. This constitution prevents current switching noise generating in the motor from propagating into the deck chassis, thereby suppressing video screen noise and audio noise, and also provides a measure for suppressing motor vibration.

摘要翻译： 用于录像带的直接驱动电机，其中电动机轴直接联接到绞盘轴并且由PWM控制控制，具有其中定子芯和甲板底盘或磁头缸电绝缘的结构 与彼此。 此外，电动机包括用于保持电动机PCB（印刷电路板）的轴承座，其一端以绝缘状态支撑在甲板底盘上。 这种结构防止电动机中产生的电流开关噪声传播到甲板底盘，从而抑制视频屏幕噪声和音频噪声，并且还提供了抑制电动机振动的措施。

公开(公告)号：US06256167B1

公开(公告)日：2001-07-03

申请号：US09270478

申请日：1999-03-15

申请人： Akio Konishi ,  Yoshiyuki Saito ,  Takefumi Yanagihara

发明人： Akio Konishi ,  Yoshiyuki Saito ,  Takefumi Yanagihara

IPC分类号： G11B1561

CPC分类号： G11B15/6656 ,  G11B15/61

摘要： An apparatus of the present invention is a magnetic recording/reproduction apparatus for pulling out a magnetic tape from a cassette, forming a predetermined tape drive system with a group of tape guide posts while winding the magnetic tape around a rotary head cylinder, having a rotary head, for a predetermined arc, so as to perform recording/reproduction of the magnetic tape. The apparatus includes: an inclined post around which a non-magnetic side of the magnetic tape from the rotary head cylinder is wound; a rail provided integrally with a base on which the rotary head cylinder is mounted; and a tape guide post carrier which has the inclined post mounted thereon and is guided along the rail. The inclined post is a tape guide post around which the winding contact line, along which the magnetic tape contacts the tape guide post, is not perpendicular to a tape drive direction. The inclined post has a tapered tip portion whose diameter upwardly decreases, wherein an upper edge of the magnetic tape is between a base of the tapered tip portion and a tip of the tapered tip portion.

摘要翻译： 本发明的装置是一种用于从盒子中拉出磁带的磁记录/再现装置，在将磁带卷绕在旋转磁头气缸周围的同时形成具有一组磁带引导柱的预定磁带驱动系统， 头，用于预定的弧，以便执行磁带的记录/再现。 该装置包括：卷绕有来自旋转磁头气缸的磁带的非磁性侧的倾斜柱; 与安装有旋转磁头气缸的基座一体地设置的轨道; 以及具有安装在其上并沿轨道引导的倾斜柱的带引导柱载体。 倾斜柱是磁带引导柱，磁带与磁带引导柱接触的绕组接触线不与磁带驱动方向垂直。 倾斜柱具有直径向下减小的锥形尖端部分，其中磁带的上边缘在锥形尖端部分的基部和锥形尖端部分的尖端之间。

公开(公告)号：US06411473B1

公开(公告)日：2002-06-25

申请号：US09262328

申请日：1999-03-04

申请人： Tadashi Ozue ,  Toshio Shirai ,  Yoshiteru Kamatani

发明人： Tadashi Ozue ,  Toshio Shirai ,  Yoshiteru Kamatani

IPC分类号： G11B1561

CPC分类号： G11B15/61 ,  G11B5/0086 ,  G11B5/534

摘要： A rotary drum device and a helical scan magnetic recording/reproducing apparatus employing an MR head as a playback magnetic head. The rotary drum device and the helical scan magnetic recording/reproducing apparatus each include a cylindrically-shaped rotary drum, an inductive magnetic head loaded on the rotary drum so that its portion is protruded from the outer periphery of the rotary drum and a magneto-resistive effect magnetic head loaded on the rotary drum so that its portion is protruded from the outer periphery of the rotary drum. An amount of protrusion from the outer periphery of the rotary drum of the magneto-resistive effect magnetic head is smaller than an amount of protrusion from the outer periphery of the rotary drum of the inductive magnetic head.

摘要翻译： 旋转鼓装置和使用MR头作为重放磁头的螺旋扫描磁记录/再现装置。 旋转鼓装置和螺旋扫描磁记录/再现装置各自包括圆柱形旋转鼓，负载在旋转磁鼓上的感应磁头，使得其部分从旋转磁鼓的外周突出并具有磁阻 将磁头加载到旋转磁鼓上，使其部分从旋转磁鼓的外周突出。 来自磁阻效应磁头的旋转磁鼓的外周的突出量小于从感应磁头的旋转磁鼓的外周突出的量。

公开(公告)号：US06411465B1

公开(公告)日：2002-06-25

申请号：US09531587

申请日：2000-03-20

申请人： Shigeo Obata ,  Makoto Miyamoto ,  Atsushi Imai ,  Yoshinobu Ono ,  Shinji Tanaka ,  Hisashi Takahashi ,  Kenji Kawamata

发明人： Shigeo Obata ,  Makoto Miyamoto ,  Atsushi Imai ,  Yoshinobu Ono ,  Shinji Tanaka ,  Hisashi Takahashi ,  Kenji Kawamata

IPC分类号： G11B1561

CPC分类号： G11B15/61 ,  G11B15/62

摘要： A rotary head in which the tape running load is decreased by setting the tape path cylindrical surface of an upper drum (12) in a range of winding of a tape (31) at an inner side relative to the tape path cylindrical surface of a lower drum (11). Alternatively, the tape path cylindrical surface of an inner drum (13) in a range of winding of the tape (31) is positioned at an outer side relative to the tape path cylindrical surface of the upper or lower drum.

摘要翻译： 一种旋转头，其中通过将上滚筒（12）的带路径圆柱形表面设置在带（31）的卷绕范围内，相对于下层的带路径圆柱形表面的内侧而减小了带运行负载 鼓（11）。 或者，在带（31）的卷绕范围内的内鼓（13）的带路径圆柱形表面位于相对于上鼓或下鼓的带路径圆柱形表面的外侧。