公开(公告)号：US6078464A

公开(公告)日：2000-06-20

申请号：US622380

申请日：1996-03-27

申请人： Hidekazu Takeda ,  Shinya Fujimori ,  Kenmei Masuda ,  Atsushi Inoue ,  Fukuyasu Abe ,  Hisashi Ichikawa ,  Masashi Ueda ,  Yoshiharu Yamashita ,  Kazuyuki Kodama

发明人： Hidekazu Takeda ,  Shinya Fujimori ,  Kenmei Masuda ,  Atsushi Inoue ,  Fukuyasu Abe ,  Hisashi Ichikawa ,  Masashi Ueda ,  Yoshiharu Yamashita ,  Kazuyuki Kodama

IPC分类号： G11B15/61 ,  G11B25/06

CPC分类号： G11B25/063 ,  G11B15/61

摘要： A drum base according to he invention, on which a drum of a magnetic tape recorder is mounted, comprises a substantially annular frame having a fixing surface to which the drum is fixed; at least one through hole extending through the fixing surface for allowing a screw which is to be threadably attached to a threaded hole formed in the drum to pass therethrough; and a pair of mounting surfaces provided on the fixing surface on which the drum is mounted, the mounting surfaces being located adjacent to the at least one through hole so as to have a symmetrical relationship in a circumferential direction of the annular frame with respect to the at least one through hole and within a range of a diameter dimension of the at least one through hole in a radial direction of the annular frame.

摘要翻译： 根据本发明的鼓座，其上安装有磁带录音机的鼓，包括具有固定表面的大致环形的框架，滚筒固定到该固定表面上; 至少一个穿过所述固定表面的通孔，用于允许螺纹连接到形成在所述滚筒中的螺纹孔的螺钉通过; 以及设置在所述固定表面上的一对安装表面，所述安装表面安置在所述固定表面上，所述安装表面邻近所述至少一个通孔定位，以便在所述环形框架的圆周方向上相对于所述至少一个通孔具有对称关系 至少一个通孔并且在所述环形框架的径向方向上的所述至少一个通孔的直径尺寸的范围内。

公开(公告)号：US5978185A

公开(公告)日：1999-11-02

申请号：US773631

申请日：1996-12-23

申请人： Fukuyasu Abe ,  Kenmei Masuda ,  Shinya Fujimori ,  Hidekazu Takeda ,  Atsushi Inoue ,  Yoshiharu Yamashita ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Masahiko Fujishiro ,  Toshihiko Imachi

发明人： Fukuyasu Abe ,  Kenmei Masuda ,  Shinya Fujimori ,  Hidekazu Takeda ,  Atsushi Inoue ,  Yoshiharu Yamashita ,  Kuniaki Hirayama ,  Yoshio Uemura ,  Masahiko Fujishiro ,  Toshihiko Imachi

IPC分类号： G11B5/187 ,  G11B5/53 ,  G11B15/61 ,  G11B15/64

CPC分类号： G11B15/61 ,  G11B15/64 ,  G11B5/531 ,  G11B5/534 ,  G11B5/1871

摘要： Disclosed in an arrangement to achieve satisfactory head contact by increasing contact face pressure at a head gap and to reduce the change in time of head contact performance in a double azimuth head. Heads in a portion in which a tape is slid are respectively constructed with each head having two different arcs with a radius of curvature R1 in a first area which includes a gap, and with a radius of curvature R2 in a second area which is adjacent to the first area. A transition portion P for transitioning an arc with the radius of curvature R1 and an arc with the radius of curvature R2 is located in the direction of its adjacent head based upon a contact point Q on R1 of a common tangent drawn from an arc forming a periphery of a rotating drum to a circle formed by R1. The relationship between the radiuses of curvature in two areas is set to R1>R2. As the area in which a tape is in contact can be reduced, contact face pressure by the tape on a gap can be increased, satisfactory head contact can be obtained and as a contact area with a tape is wide to some extent, a change in time of contact performance can be reduced.

摘要翻译： 公开了通过增加头部间隙处的接触面压力来实现令人满意的头部接触的装置，并且减少双方位头部中的头部接触性能的时间变化。 分别构成带子滑动部分的头部，每个头部在具有间隙的第一区域中具有曲率半径R1的两个不同的弧，并且在与第二区域相邻的第二区域中具有曲率半径R2 第一个区域。 用于使具有曲率半径R1的圆弧和具有曲率半径R2的弧的过渡部分P基于R1上的接触点Q位于其相邻头部的方向上，该接触点Q从形成 旋转鼓的周边由R1形成的圆。 两个区域的曲率半径之间的关系设置为R1> R2。 随着胶带接触的区域可以减小，可以增加带上间隙的接触面压力，可以获得令人满意的头部接触，并且由于与带的接触面积在一定程度上是宽的， 可以减少接触性能的时间。

公开(公告)号：US5734537A

公开(公告)日：1998-03-31

申请号：US652271

申请日：1996-05-23

申请人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

发明人： Seiji Ono ,  Kenmei Masuda ,  Hidekazu Takeda ,  Atsushi Inoue ,  Nobuo Masuoka ,  Noboru Katohno ,  Makoto Ibe ,  Kuniaki Hirayama ,  Kiyokazu Watanabe

IPC分类号： G11B15/61

CPC分类号： G11B15/61

摘要： In a rotary head drum of a recording/reproduction apparatus, for smoothly holding a magnetic tape over a guide step provided on a lower drum to guide the magnetic tape, part of a chamfer formed in the guide step is formed as a large chamfer in which a chamfered amount is larger than that of the remaining part of the chamfer. With the provision of the large chamfer, even if the lower edge of the magnetic tape deviates from the guide step when the tape is wound over or unwound from the drum, damages of the magnetic tape can be prevented. Therefore, the position and attitude control of tape withdrawing members can be greatly simplified and the magnetic tape can always run stably while being restricted in its position by the guide step. In the process of machining a tape running surface on the drum, by increasing the feed distance of a blade in the part of the chamfer where the large chamfer is to be formed by chamfering the guide step with a large chamfered amount, in comparison with the feed distance set in the remaining part of the chamfer, the large chamfer and the small chamfer can be both machined at the same time, resulting in simplified machining steps.

摘要翻译： 在记录/再现装置的旋转磁头鼓中，为了平滑地将磁带保持在设置在下磁鼓上的引导台上以引导磁带，形成在引导步骤中的倒角的一部分形成为大倒角，其中 倒角量大于倒角剩余部分的倒角量。 通过设置大倒角，即使当磁带从磁鼓卷绕或退绕时磁带的下边缘偏离引导步骤，也可以防止磁带的损坏。 因此，能够极大地简化卷取装置的位置和姿势控制，并且通过引导步骤限制在其位置，磁带总是可以稳定地运行。 在加工滚筒上的带子运行表面的过程中，通过在倒角部分中增加叶片的进给距离，通过以较大的倒角量倒角引导台阶，形成大倒角的部分，与 在倒角的剩余部分设置的进给距离，大倒角和小倒角可以同时加工，从而简化了加工步骤。

公开(公告)号：US5602695A

公开(公告)日：1997-02-11

申请号：US266856

申请日：1994-07-05

申请人： Tatsumi Nishijima ,  Hidekazu Takeda ,  Kenmei Masuda ,  Hikaru Mizutani ,  Yoshimi Maehara

发明人： Tatsumi Nishijima ,  Hidekazu Takeda ,  Kenmei Masuda ,  Hikaru Mizutani ,  Yoshimi Maehara

IPC分类号： G11B15/675 ,  G11B5/008

CPC分类号： G11B15/67513

摘要： A cassette loading mechanism for loading either a smaller tape cassette or a larger tape cassette into a recording/reproducing apparatus, having apparatus for causing the large cassette to avoid obstructions in a cassette holder during insertion of the large cassette and of enabling the stable insertion of the larger tape cassette in the cassette holder. The cassette loading mechanism has a cassette holder provided with contact members disposed so as to engage only the larger tape cassette and so as to move members provided on the cassette holder for use with the smaller tape cassette to a retracted position. The member for use with the smaller tape cassette and the contact member are formed in an integral unit to ensure the correct operation of the cassette loading mechanism.

摘要翻译： 用于将较小的盒式磁带或较大的磁带盒装载到记录/再现装置中的磁带盒装载机构，具有用于在插入大磁带盒期间使大磁带盒避免磁带盒保持架中的障碍物并使能够稳定地插入 磁带盒中的较大磁带盒。 磁带盒装载机构具有磁带盒保持器，其设置有接触构件，其设置成仅与较大的磁带盒接合，并且将设置在磁带盒上的构件移动到与小磁带盒一起使用的缩回位置。 用于较小带盒和接触构件的构件形成为一体的单元，以确保盒装载机构的正确操作。

公开(公告)号：US06757123B2

公开(公告)日：2004-06-29

申请号：US10051894

申请日：2002-01-16

申请人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

发明人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

IPC分类号： G11B1518

CPC分类号： G11B27/36 ,  G11B5/41 ,  G11B5/53 ,  G11B19/04 ,  G11B2220/90

摘要： According to the invention, techniques for cleaning a rotary magneto-resistive head. Embodiments according to the invention are especially useful in tape drive systems, and the like. Embodiments can provide methods and apparatus for cleaning contaminant from rotary magneto-resistive heads while guarding against damage to the head from excess cleaning, and the like. Specific embodiments can control the rotational speed of a rotary magneto-resistive head in order to facilitate cleaning operations. Embodiments include a cleaning device and a control method, and are suited for use in a magneto-resistive head mounted on a rotary cylinder of a computer tape storage unit, for example, although application of the present invention is not limited to such embodiments.

摘要翻译： 根据本发明，用于清洁旋转磁阻头的技术。 根据本发明的实施例在带驱动系统等中是特别有用的。 实施例可以提供用于从旋转磁阻头读取污染物的方法和装置，同时防止由于过度清洁而损坏头部等。 具体实施例可以控制旋转磁阻头的旋转速度，以便于清洁操作。 实施例包括清洁装置和控制方法，并且适用于安装在计算机磁带存储单元的旋转圆筒上的磁阻头，例如，尽管本发明的应用不限于这些实施例。

公开(公告)号：US5570831A

公开(公告)日：1996-11-05

申请号：US167069

申请日：1993-12-16

申请人： Hidekazu Takeda ,  Kenmei Masuda ,  Nobuyuki Kaku ,  Tomoki Shoji ,  Toshihiro Koyama ,  Kazuo Sakai ,  Fumio Takeda

发明人： Hidekazu Takeda ,  Kenmei Masuda ,  Nobuyuki Kaku ,  Tomoki Shoji ,  Toshihiro Koyama ,  Kazuo Sakai ,  Fumio Takeda

IPC分类号： G11B15/60 ,  B65H23/24 ,  G11B15/61 ,  G11B15/665

CPC分类号： B65H23/24 ,  B65H2406/111

摘要： A tape guide device having apertures formed in two tape-winding surfaces of non-rotatable curvature portions. A tape restriction is provided at a connecting portion of the tape guide device interconnecting the curvature portions. A flange is provided on one of the curvature portions for movement along an axis thereof to adjust the height thereof. The flange has an outer diameter greater than that of the one curvature portion. The curvature portions are integrated with each other. According this, an air film is generated between the tape and the tape-winding surfaces by discharging air from the apertures, thereby reducing the friction coefficient between the tape and the tape-winding surfaces to suppress the increase of tape tension. The tape is restricted to fluctuate in the direction of width. Further, the attitude and relative positioning between the curvature portions can be secured with high precision. As a result, the tape load during the tape running is reduced, thereby stabilizing the tape running and prolonging the lifetime of the tape.

摘要翻译： 一种带导向装置，其具有形成在不可旋转曲率部分的两个带卷绕表面中的孔。 在连接弯曲部分的带导向装置的连接部分处设置带限制。 一个弯曲部分上设有凸缘，用于沿其轴线移动以调节其高度。 凸缘的外径大于一个曲率部分的外径。 曲率部分彼此一体化。 据此，通过从孔排出空气，在带和带卷绕表面之间产生空气膜，从而降低带和带缠绕表面之间的摩擦系数，以抑制带张力的增加。 磁带被限制在宽度方向上波动。 此外，可以高精度地确保曲率部分之间的姿态和相对定位。 结果，带运行期间的带载减少，从而稳定带的运行并延长带的使用寿命。

公开(公告)号：US5687047A

公开(公告)日：1997-11-11

申请号：US677779

申请日：1996-07-10

申请人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

发明人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

IPC分类号： G11B23/02 ,  G11B23/087 ,  G03B23/02 ,  G11B23/04

CPC分类号： G11B23/08735

摘要： A magnetic tape cartridge includes a casing having a tape chamber defined therein for accommodating a reeled magnetic recording tape and, also, box arms protruding outwardly from a front wall section of the casing so as to leave a loading bay that opens upwardly, frontwardly and downwardly and is thus delimited by upwardly, frontwardly and downwardly oriented open areas. The casing includes a lid assembly for selectively concealing and exposing that portion of magnetic recording tape and including front, top and rear lids operatively linked together. The front and top lids are adapted to selectively open and close the frontwardly and upwardly oriented open areas of the loading bay, respectively, while the rear lid is positioned within the loading bay and adapted to selectively open and close a space delimited between the front and the rear lid. At least first and second, generally cylindrical bosses extend between the top and bottom panels of the casing and are positioned at respective points of intersection between inner side walls of the box arms, which confront the loading bay, and the front wall section so as to partially protrude laterally into the loading bay. Each boss has a positioning hole defined axially therein so as to extend exteriorly through one of the top and bottom walls of the casing and is comprised of upper and lower boss segments aligned axially with each other. The upper boss segment has an outer diameter smaller than that of the lower boss segment.

摘要翻译： 磁带盒包括壳体，其具有限定在其中的带室，用于容纳卷绕的磁记录带，以及从壳体的前壁部分向外突出的盒臂，以便离开装载室，其向上，向前和向下打开 并且因此由向上，向前和向下定向的开放区域限定。 壳体包括用于选择性地隐藏和暴露磁记录带的该部分并且包括可操作地连接在一起的前盖，顶盖和后盖的盖组件。 前盖和顶盖适于分别选择性地打开和关闭装载舱的前向和向上定向的开放区域，同时后盖位于装载舱内，并适于选择性地打开和关闭在前部和 后盖。 至少第一和第二，通常为圆柱形的凸台在壳体的顶部和底部面板之间延伸，并且被定位在盒臂的内侧壁之间的相对的交叉点处，其与加载间隔面和前壁部分相交，以便 部分地横向突出到装载舱中。 每个凸台具有轴向限定的定位孔，以便在壳体的顶壁和底壁中的一个外部延伸，并且包括彼此轴向对准的上和下凸台部分。 上凸台段的外径小于下凸台段的外径。

公开(公告)号：US06654194B1

公开(公告)日：2003-11-25

申请号：US09631612

申请日：2000-08-04

申请人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

发明人： Kenmei Masuda ,  Hidekazu Takeda ,  Shigeru Yamazaki ,  Akihisa Obata ,  Toshio Tsuchiya ,  Kenkichi Inada ,  Kuniako Hirayama

IPC分类号： G11B1902

CPC分类号： G11B27/36 ,  G11B5/41 ,  G11B5/53 ,  G11B19/04 ,  G11B2220/90

摘要： According to the invention, techniques for cleaning a rotary magneto-resistive head. Embodiments according to the invention are especially useful in tape drive systems, and the like. Embodiments can provide methods and apparatus for cleaning contaminant from rotary magneto-resistive heads while guarding against damage to the head from excess cleaning, and the like. Specific embodiments can control the rotational speed of a rotary magneto-resistive head in order to facilitate cleaning operations. Embodiments include a cleaning device and a control method, and are suited for use in a magneto-resistive head mounted on a rotary cylinder of a computer tape storage unit, for example, although application of the present invention is not limited to such embodiments.

摘要翻译： 根据本发明，用于清洁旋转磁阻头的技术。 根据本发明的实施例在带驱动系统等中是特别有用的。 实施例可以提供用于从旋转磁阻头读取污染物的方法和装置，同时防止由于过度清洁而损坏头部等。 具体实施例可以控制旋转磁阻头的旋转速度，以便于清洁操作。 实施例包括清洁装置和控制方法，并且适用于安装在计算机磁带存储单元的旋转磁盘上的磁阻头，例如，尽管本发明的应用不限于这些实施例。

公开(公告)号：US6061213A

公开(公告)日：2000-05-09

申请号：US887222

申请日：1997-07-02

申请人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

发明人： Hikaru Mizutani ,  Mikihisa Inoue ,  Kenmei Masuda ,  Hidekazu Takeda

IPC分类号： G11B23/02 ,  G11B23/087

CPC分类号： G11B23/08735

摘要： A magnetic tape cartridge includes a casing having a tape chamber defined therein for accommodating a reeled magnetic recording tape and, also, box arms protruding outwardly from a front wall section of the casing so as to leave a loading bay that opens upwardly, frontwardly and downwardly and is thus delimited by upwardly, frontwardly and downwardly oriented open areas. The casing includes a lid assembly for selectively concealing and exposing that portion of magnetic recording tape and including front, top and rear lids operatively linked together. The front and top lids are adapted to selectively open and close the frontwardly and upwardly oriented open areas of the loading bay, respectively, while the rear lid is positioned within the loading bay and adapted to selectively open and close a space delimited between the front and the rear lid. At least first and second, generally cylindrical bosses extend between the top and bottom panels of the casing and are positioned at respective points of intersection between inner side walls of the box arms, which confront the loading bay, and the front wall section so as to partially protrude laterally into the loading bay. Each boss has a positioning hole defined axially therein so as to extend exteriorly through one of the top and bottom walls of the casing and is comprised of upper and lower boss segments aligned axially with each other. The upper boss segment has an outer diameter smaller than that of the lower boss segment.

摘要翻译： 磁带盒包括壳体，其具有限定在其中的带室，用于容纳卷绕的磁记录带，以及从壳体的前壁部分向外突出的盒臂，以便离开装载室，其向上，向前和向下打开 并且因此由向上，向前和向下定向的开放区域限定。 壳体包括用于选择性地隐藏和暴露磁记录带的该部分并且包括可操作地连接在一起的前盖，顶盖和后盖的盖组件。 前盖和顶盖适于分别选择性地打开和关闭装载舱的前向和向上定向的开放区域，同时后盖位于装载舱内，并适于选择性地打开和关闭在前部和 后盖。 至少第一和第二，通常为圆柱形的凸台在壳体的顶部和底部面板之间延伸，并且被定位在盒臂的内侧壁之间的相对的交叉点处，其与加载间隔面和前壁部分相交，以便 部分地横向突出到装载舱中。 每个凸台具有轴向限定的定位孔，以便在壳体的顶壁和底壁中的一个外部延伸，并且包括彼此轴向对准的上和下凸台部分。 上凸台段的外径小于下凸台段的外径。

公开(公告)号：US5497279A

公开(公告)日：1996-03-05

申请号：US226263

申请日：1994-04-08

申请人： Tatsumi Nishijima ,  Hidekazu Takeda ,  Kenmei Masuda ,  Hikaru Mizutani ,  Yoshimi Maehara ,  Kenji Ogiro

发明人： Tatsumi Nishijima ,  Hidekazu Takeda ,  Kenmei Masuda ,  Hikaru Mizutani ,  Yoshimi Maehara ,  Kenji Ogiro

IPC分类号： G11B15/61 ,  G11B15/675 ,  G11B23/087 ,  G11B15/60 ,  G03B23/02 ,  G11B23/08

CPC分类号： G11B23/08735 ,  G11B15/61 ,  G11B15/67565

摘要： A tape cartridge is arranged so that when an upper lid of a pocket portion of the tape cartridge is in a position for opening the upper side of the pocket portion, the upper lid is positioned above an upper surface of a casing body so that a lower surface of the upper lid faces the upper surface of the casing body through a gap in which a member of a recording/reproduction apparatus for depressing the cartridge can be placed. When the upper lid is in the position for opening the upper side of the pocket, the cartridge depressing member of the recording/reproduction apparatus is placed in the gap to depress the cartridge, whereby the cartridge can be stably depressed to and mounted in a predetermined position in the recording/reproduction apparatus when the cartridge is loaded in the apparatus.

摘要翻译： 磁带盒被布置成使得当磁带盒的凹口部分的上盖处于用于打开凹部的上侧的位置时，上盖位于壳体的上表面的上方，使得下部 上盖的表面通过其中可以放置用于按压盒的记录/再现装置的构件的间隙面对壳体的上表面。 当上盖处于用于打开袋的上侧的位置时，记录/再现装置的盒推动构件被放置在间隙中以压下盒，由此可以将盒稳定地按压并安装在预定的 当盒被装载到设备中时在记录/再现设备中的位置。