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1. 发明授权

US5734537A Tape guide structure of rotary head drum in recording/reproduction apparatus and method of machining the same 失效
标题翻译：记录/再现装置中旋转磁头鼓的磁带引导结构及其加工方法
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。

2. 发明授权

US5978185A Rotary head and recording/reading apparatus provided with rotary head 失效
标题翻译：旋转头和记录/读取装置配有旋转头
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。

3. 发明授权

US6108165A Rotary drum equipment and recording/reproducing equipment using the same 有权
标题翻译：旋转鼓设备和使用其的录音/再现设备
公开(公告)号：US6108165A
公开(公告)日：2000-08-22
申请号：US199160
申请日：1998-11-25
申请人： Hideki Maruyama , Kenmei Masuda , Kuniaki Hirayama , Yoshio Uemura , Toshihiko Imachi , Kenkichi Inada , Toshio Tsuchiya
发明人： Hideki Maruyama , Kenmei Masuda , Kuniaki Hirayama , Yoshio Uemura , Toshihiko Imachi , Kenkichi Inada , Toshio Tsuchiya
IPC分类号： G11B5/53 , G11B15/61
CPC分类号： G11B15/61
摘要： An arrangement is designed to achieve satisfactory tape contact by setting a specific ratio for the width of a drum window and the head length of a double azimuth head. The head length L is defined as the distance from the front end of the preceding head to the back end of the succeeding head. When the drum window width W is defined as the distance of the drum window in the rotary direction, the preceding head and the succeeding head are arranged within the drum window to satisfy the relation 1.15 L.ltoreq.W.ltoreq.1.28 L. When the space S1 is defined as the distance from the front end of the preceding head to the front end of the drum window, and the space S2 is defined as the distance from the back end of the succeeding head to the back end of the drum window, the preceding head and the succeeding head are arranged within the drum window to satisfy the relation 0.075 L.ltoreq.S1.ltoreq.0.14 L and 0.075 L.ltoreq.S2.ltoreq.0.14 L. According to this arrangement, the magnetic tape intrudes preferably into the space between the double azimuth head and the drum window. The magnetic tape envelopes and contacts the head surface, so that the tendency for a spacing to occur between the head and the tape is suppressed. The reproducing output is increased and stabilized in this way.
摘要翻译：设计一种布置，通过设置鼓窗宽度和双方位头的头部长度的特定比例来实现令人满意的胶带接触。头部长度L被定义为从前一个头部的前端到随后头部的后端的距离。当滚筒窗口宽度W被定义为滚筒窗口在旋转方向上的距离时，先前的头部和后面的头部被布置在滚筒窗口内以满足关系1.15L

4. 发明申请

US20050168875A1 Rotary magnetic head drum apparatus 审中-公开
标题翻译：旋转磁头鼓装置
公开(公告)号：US20050168875A1
公开(公告)日：2005-08-04
申请号：US10896098
申请日：2004-07-20
申请人： Shinji Okada , Kuniaki Hirayama , Yoshio Uemura , Hidekazu Takeda
发明人： Shinji Okada , Kuniaki Hirayama , Yoshio Uemura , Hidekazu Takeda
IPC分类号： G11B5/52 , G11B5/53
CPC分类号： G11B5/52 , G11B5/53
摘要： An object of the present invention is to provide a center drum rotating type of rotary magnetic head drum apparatus, which improves an accuracy of alignment of an upper fixed drum, and easily executes a fine adjustment. In correspondence to the object mentioned above, a hole fitted to a shaft is provided at a position coaxial with an outer periphery of an upper fixed drum in an end surface portion of an upper portion of the upper fixed drum, the shaft is inserted to the hole, a slope of the end surface portion of the upper portion of the upper fixed drum is adjusted while being fixed by a male screw and a locking screw, and a fine adjustment is executed for aligning the upper fixed drum. In particular, an outer periphery of the upper fixed drum in an input side of the tape is slightly moved backward from an outer periphery of the upper fixed drum in an output side of the tape, with respect to an outer periphery of the lower fixed drum.
摘要翻译：本发明的目的是提供一种中心鼓旋转式旋转磁头鼓装置，其提高了上固定鼓的对准精度，并且容易执行微调。对应于上述目的，安装在轴上的孔设置在与上固定鼓的上表面部分的上固定鼓的外周同轴的位置，轴被插入到在通过外螺纹和锁定螺钉固定的同时调整上固定滚筒上部端面部分的斜面，并进行微调以对准上固定滚筒。特别地，在带的输入侧的上固定鼓的外周在带的输出侧从上固定鼓的外周稍微向后移动，相对于下固定鼓的外周。

5. 发明授权

US5661622A Rotary magnetic head cylinder device for reduced vibration and proper head/type alignment 失效
标题翻译：旋转磁头气缸装置用于减少振动和适当的头部/类型对准
公开(公告)号：US5661622A
公开(公告)日：1997-08-26
申请号：US681605
申请日：1996-07-29
申请人： Masanori Kochi , Akihiro Nakajima , Yoshio Uemura , Toshihiko Imachi , Kuniaki Hirayama , Eijiro Tazawa , Kiyokazu Watanabe
发明人： Masanori Kochi , Akihiro Nakajima , Yoshio Uemura , Toshihiko Imachi , Kuniaki Hirayama , Eijiro Tazawa , Kiyokazu Watanabe
IPC分类号： G11B15/61 , G11B5/00 , G11B15/62 , G11B33/08 , G11B15/60
CPC分类号： G11B15/61 , G11B15/62 , G11B33/08
摘要： A rotary magnetic recording and reproducing apparatus includes a stationary cylinder formed on a lower portion of an outer peripheral surface thereof with a guide lead for guiding a lower edge of a magnetic tape and defining a tape running face on an upper portion of the outer peripheral surface thereof, a first bulge portion formed on an upper edge portion of the tape running face of the stationary cylinder on a tape leaving side of the upper edge portion of the tape running face and a second bulge portion which is smaller in height than the first bulge portion and formed on the upper edge portion of the tape running face on the tape leaving side thereof and in the vicinity of the first bulge portion on a tape incoming side of the first bulge portion. The first bulge portion serves to relax shock or vibration of a magnetic tape leaving the magnetic head and the second bulge portion serves to improve "head-touch" of the magnetic tape.
摘要翻译：一种旋转磁记录和再现装置，包括：一个形成在其外周表面的下部的固定圆筒，用于引导磁带的下边缘的引导线，并且在外周面的上部限定一条带走向面第一凸起部，形成在所述静止圆筒的带走带面的上边缘部分上，所述第一凸起部位于所述带走带面的上边缘部分的带离开侧;以及第二凸起部分，其高度小于所述第一凸起部并且形成在带离开侧的带行走面的上边缘部分上并且在第一凸起部分的带进入侧的第一凸起部分附近。第一凸起部分用于放松离开磁头的磁带的冲击或振动，并且第二凸起部分用于改善磁带的“头部接触”。

6. 发明授权

US06195499B1 Magnetic recording and/or reproducing apparatus 失效
标题翻译：磁记录和/或再现装置
公开(公告)号：US06195499B1
公开(公告)日：2001-02-27
申请号：US09399230
申请日：1999-09-20
申请人： Nobutaka Amada , Hiroo Okamoto , Hideo Nishijima , Hideo Zama , Kuniaki Hirayama
发明人： Nobutaka Amada , Hiroo Okamoto , Hideo Nishijima , Hideo Zama , Kuniaki Hirayama
IPC分类号： H04N593
CPC分类号： H04N9/7921 , G11B5/0086 , G11B5/00865 , G11B5/00878 , G11B15/125 , G11B15/1875 , G11B15/4675 , G11B20/1209 , G11B27/005 , G11B27/32 , G11B2220/90 , H04N5/783 , H04N5/926 , H04N5/945 , H04N9/83 , H04N9/84
摘要： A magnetic recording and/or reproducing apparatus having a plurality of recording/reproducing modes, such as a long-time recording/reproducing mode and a high rate recording/reproducing mode for digital signals, is intended to form an ideal recording pattern for any head configuration. The apparatus includes magnetic heads 2a and 2b having positive/negative azimuth angles and which are opposed to each other by 180°; magnetic heads 3a and 3b having positive azimuth angles and which are opposed to each other by 180°; and magnetic heads 4a and 4b having negative azimuth angles and which are opposed to each other by 180°; wherein recording/reproducing is performed by using the magnetic heads 2a and 2b in a standard recording/reproducing mode; by using the magnetic heads 3a, 3b, 4a and 4b in a high rate recording/reproducing mode; by using the magnetic heads 2b and 3b in a long-time recording/reproducing mode which is twice as long as the standard mode; and by using the magnetic heads 2a and 2b in a long-time recording/reproducing mode which is N times (N; integer being 3 or more) as long as the standard mode.
摘要翻译：具有多个记录/再现模式的磁记录和/或再现装置，例如用于数字信号的长时间记录/再现模式和高速率记录/再现模式，旨在形成用于任何头部的理想记录模式组态。该装置包括具有正/负方位角并彼此相对180度的磁头2a和2b; 具有正方位角并彼此相对180度的磁头3a和3b; 磁头4a，4b具有负方位角，并相互相对180°; 其中通过在标准记录/再现模式中使用磁头2a和2b来执行记录/再现; 通过以高速率记录/再现模式使用磁头3a，3b，4a和4b; 通过使用两倍于标准模式的长时间记录/再现模式中的磁头2b和3b; 并且通过使用长度为标准模式的N倍（N;整数为3以上）的长时间记录/再现模式中的磁头2a和2b。

7. 发明授权

US5637945A Brushless motor 失效
标题翻译：无刷电机
公开(公告)号：US5637945A
公开(公告)日：1997-06-10
申请号：US124189
申请日：1993-09-21
申请人： Kiyoshi Yamamuro , Hisahiro Miki , Kuniaki Hirayama
发明人： Kiyoshi Yamamuro , Hisahiro Miki , Kuniaki Hirayama
IPC分类号： H02K11/00 , H02K1/12 , H02K3/47 , H02K5/22 , H02K21/24 , H02K29/08 , H02K29/14 , H02K1/22
CPC分类号： H02K29/14 , H02K1/12 , H02K21/24 , H02K29/08 , H02K3/47 , H02K2203/03 , H02K2211/03 , H02K5/225 , Y10S310/06
摘要： A brushless motor includes a minimum number of parts and is assembled easily. A molded, substantially annular plastic permanent magnet on a rotor is magnetized in axially opposite directions alternatively such that a plurality of pairs of S and N poles are formed alternatively. The substantially annular permanent magnet includes an annular portion associated with air-core coils provided on a stator for generating a driving torque for the rotor and associated with a frequency signal generating circuit pattern provided on the stator for generating an electric signal indicative of a rotor speed and a protruded portion protruding from an outer peripheral side surface of the annular portion and associated with a rotor position detecting means provided on the stator for generating an electric signal indicative of a rotor position. A boundary line between an S and N pole of one of the plural pole pairs passes through the protruded portion. Lead portions for connecting terminals of the frequency signal generating circuit pattern to external circuits are formed such that they are overlapped to prevent degradation of frequency signal generator characteristics.
摘要翻译：无刷电动机包括最少数量的部件并容易组装。转子上的模制的基本环形的塑料永久磁铁交替地沿轴向相对的方向被磁化，使得交替地形成多对S极和N极。基本上环形的永磁体包括与设置在定子上的空心线圈相关联的环形部分，用于产生用于转子的驱动转矩并与设置在定子上的频率信号产生电路图案相关联，以产生指示转子速度的电信号以及从环形部分的外周侧表面突出并与设置在定子上的转子位置检测装置相关联的突出部分，用于产生指示转子位置的电信号。多个极对中的一个的S极和N极之间的边界线穿过突出部分。形成将频率信号发生电路图案的端子连接到外部电路的引线部分，以便它们重叠以防止频率信号发生器特性的劣化。

8. 发明授权

US4882833A Method and apparatus for mounting coils inside a hollow cylindrical article 失效
标题翻译：将线圈安装在中空圆柱形物品内的方法和装置
公开(公告)号：US4882833A
公开(公告)日：1989-11-28
申请号：US193662
申请日：1988-05-13
申请人： Hiromichi Hiramatsu , Hitoshi Odashima , Kuniaki Hirayama , Toshio Ohji
发明人： Hiromichi Hiramatsu , Hitoshi Odashima , Kuniaki Hirayama , Toshio Ohji
IPC分类号： H01F41/06
CPC分类号： H01F41/082 , Y10T29/49009 , Y10T29/49071 , Y10T29/53161
摘要： A coil mounting method and apparatus is disclosed, for example, for mounting coils to the inner periphery of a cylindrical core in assembling a cylindrical rotary transformer of a VTR cylinder. A wire is wound round the outer periphery of a coil holding jig that is capable of opening and closing in a radial direction. After the coil is formed, the coil holding jig is inserted into a cylindrical article and opened radially to have the coil fitted in a coil groove formed in the inner periphery of the cylindrical article. The mounting of the coil to the inner periphery of a cylindrical article can be done in a short time through a reduced number of steps.
摘要翻译：公开了一种线圈安装方法和装置，例如，用于在组装VTR气缸的圆柱形旋转变压器时将线圈安装到圆柱形芯的内周。绕线圈绕线圈保持夹具的外周，该线圈保持夹具能够沿径向打开和关闭。在线圈形成之后，将线圈保持夹具插入圆柱形物品中并径向开放，使线圈装配在形成在圆柱形物品的内周中的线圈槽中。可以通过减少数量的步骤在短时间内将线圈安装到圆柱形物品的内周。

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