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81. 发明专利

JPS59168973A Dust preventing and removing mechanism of carriage 失效
标题翻译：防止和去除运输机制
公开(公告)号：JPS59168973A
公开(公告)日：1984-09-22
申请号：JP4218483
申请日：1983-03-16
申请人： Hitachi Ltd
发明人： MURAOKA KOUJI , UNO MOTOO , KANEDA NORIYA
IPC分类号： F16C29/04 , F16C29/00 , G11B21/00 , G11B21/02
CPC分类号： G11B21/00
摘要： PURPOSE:To prevent the increase and the variation of the frictional force of a bearing due to the influence of dust and reduce the number of parts and the increase of weight to make conversion easy, by providing an elastic deforming material which is attached into a cap covering the bearing and is brought into contact with the surface of a rail in the longitudinal direction. CONSTITUTION:A duct removing material 9 is moved on the surface of a rail 1 in accordance with the movement of a carriage 3, and dust on the rail 1 is removed by this operation. A dust-proof cap 8 prevents not only dropped or floated dust from sticking to the outside wheel of a bearing 10 but also dust from penetrating the bearing 10 from gaps of the bearing 10. Since the dust- proof cap 8 is pressed to a shaft 11 with a proper force, attaching parts are not especially required, and it is not slipped off in the normal use. Since the increase of the weight of the part of the dust-proof cap 8 is slight and the dust removing material 9 has the end face brought into contact with the rail 1, the increase of the force of rolling friction is slight. Consequently, the replacement of the dust preventing and removing mechanism is easy, and positioning control and maintenance are made easy.
摘要翻译：目的：为了防止由于灰尘的影响引起的轴承摩擦力的增加和变化，减少零件数量和增加重量以使转换变得容易，通过提供一种弹性变形材料，其被附接到盖覆盖轴承并且在纵向方向上与轨道的表面接触。构成：根据滑架3的移动，导管移除材料9在导轨1的表面上移动，并且通过该操作去除导轨1上的灰尘。防尘盖8不仅防止落下或漂浮的灰尘粘附到轴承10的外轮上，而且防止从轴承10的间隙穿透轴承10的灰尘。由于防尘盖8被压到轴 11具有适当的力，附着部件不是特别需要的，并且在正常使用中不会滑落。由于防尘盖8的一部分的重量的增加是轻微的，并且除尘材料9的端面与导轨1接触，因此滚动摩擦力的增加是轻微的。因此，更换防尘除尘机构容易，并且容易进行定位控制和维护。

82. 发明专利

JPS58169348A OPTICAL HEAD 失效
公开(公告)号：JPS58169348A
公开(公告)日：1983-10-05
申请号：JP5122782
申请日：1982-03-31
申请人： HITACHI LTD
发明人： UNO MOTOO , KANEDA NORIYA
IPC分类号： G11B7/09
摘要： PURPOSE:To correct a shift of the focus and the position of an optical spot with good responsiveness, by supporting a moving member for supporting an objective lens by a parallel spring to a yoke of a focusing direction driving magnetic circuit by plural bearings. CONSTITUTION:An objective lens 1, a tracking direction driving coil 23 and parallel springs 601, 602 are connected to an objetive lens holder 22, and the objective lens holder 22 is supported by a moving member 7 through the parallel springs 601, 602. The moving member 7 is guided by a yoke 13 through plural bearing balls 26 and a retainer 27. The objective lens 1 moves in a focusing direction 1001 through a focusing direction driving coil 8. The objective lens 1 moves in a tracking direction 1002 through a coil 23. Accordingly, a shift of the focus and the position of an optical spot is corrected with good responsiveness.

83. 发明专利

JPS5897139A OPTICAL SPOT CONTROLLING SYSTEM 失效
公开(公告)号：JPS5897139A
公开(公告)日：1983-06-09
申请号：JP19452281
申请日：1981-12-04
申请人： HITACHI LTD
发明人： MAEDA TAKESHI , TAKASAGO MASAHIRO , MIZOGUCHI YASUMITSU , UNO MOTOO
IPC分类号： G11B7/085
摘要： PURPOSE:To detect the middle point between tracks and to make jump operation of an optical spot stable, by detecting the peak point of a total reflected luminous amount from a disc and switching the polarity of a control signal driving the optical spot at the peak point. CONSTITUTION:In a digital optical disc, the jump operation shifting the optical spot from a guide groove to a guide groove in a short time where recorded parts and nonrecording part are mixed, is made stable, and the average value of the reflected luminous amount from the recorded track is a half the nonrecording track, and although a track shift detecting signal E1 is largely changed, the peak position of a total reflected luminous amount E2 is unchanged. Thus, to detect the middle point between the tracks, this peak point is detected and denoted as a switching timing point for acceleration and deceleration, and to improve the stability of jump, the optical spot is once positioned at the middle point of the tracks and led to the objective track.

84. 发明专利

JPS5368388A FLUID SERVOODEVICE 失效
公开(公告)号：JPS5368388A
公开(公告)日：1978-06-17
申请号：JP14227476
申请日：1976-11-29
申请人： HITACHI LTD
发明人： UNO MOTOO
IPC分类号： F15B9/09 , F15B9/00
摘要： PURPOSE:To move smoothly at high speed and to position with high accuracy, by means of both placing a control valve which operates velocity controlling and has gain characteristic of large capacity and high flow qwantity, and a control valve which operates positioning controlling and has gain characteristic of small capacity and low flow qwantity.

85. 发明专利

JPS536890A CONTACT SENSOR 失效
公开(公告)号：JPS536890A
公开(公告)日：1978-01-21
申请号：JP8092376
申请日：1976-07-09
申请人： HITACHI LTD
发明人： TAKEYASU KIYOO , UNO MOTOO , KASAI MASUO , SHIMOMURA YUKIJI
IPC分类号： G01L1/04 , G01V9/00 , H01H13/18 , H01H35/00

86. 发明专利

JPH1069653A OPTICAL DISK DEVICE 失效
公开(公告)号：JPH1069653A
公开(公告)日：1998-03-10
申请号：JP18796797
申请日：1997-07-14
申请人： HITACHI LTD
发明人： MAEDA TAKESHI , UNO MOTOO , MURAOKA KOJI , TAKASAGO MASAHIRO , MIZOGUCHI YASUMITSU , KANEDA NORIYA
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To perform exact recording/reproduction by driving a first actuator to decrease the movement of a second actuator required for following up a track with a light beam while being linked with the detected movement. SOLUTION: This device uses a first actuator 312 (position control means) having a wide movable range and a second actuator 230 (position control means) having a narrow movable range but high responsiveness and the positioning accuracy unattainable by only one actuator is realized by linking two actuators with each other. At this time, a problem of linkage of two actuators arises, but, in this device, the movement of a light spot is detected by the second actuator 320 for highly accurate positioning and the first actuator 312 is driven linked with the movement.

87. 发明专利

JPH09134531A INFORMATION MEMORY APPARATUS 失效
公开(公告)号：JPH09134531A
公开(公告)日：1997-05-20
申请号：JP27325596
申请日：1996-10-16
申请人： HITACHI LTD
发明人： MAEDA TAKESHI , UNO MOTOO , MURAOKA KOJI , TAKASAGO MASAHIRO , MIZOGUCHI YASUMITSU , KANEDA NORIYA
IPC分类号： G11B7/085 , G11B7/09
摘要： PROBLEM TO BE SOLVED: To accurately form a spot close to a diffraction limit and correctly record/reproduce information, by controlling with the use of an inexpensive and light-weight lens so that light beams pass the vicinity of a center of a lens of an optical head at all times at the tracking time. SOLUTION: The apparatus has an optical head for shedding laser beam onto an optical disk 3, a tracking signal formation means indicating a shift of a spot from a track based on an output of a photodetecting means detecting a reflecting light from the optical disk 3, a first driving means 320 for moving the optical head, a second driving means 312 for tracing the track in accordance with a tracking signal and moving a lens in parallel to a surface of the optical disk 3 to move the spot, and a detection means for detecting the movement of the second driving means 312 when the second driving means 312 operates and outputting a signal. The first driving means 320 moves the optical head in accordance with an output of the detection means so as to reduce the shift of the spot moved by the second driving means 312 while the second driving means 312 traces a required track. Accordingly, the track is traced by the optical head following the movement of the driving means 312.

88. 发明专利

JP2591344B2 失效
公开(公告)号：JP2591344B2
公开(公告)日：1997-03-19
申请号：JP7962091
申请日：1991-04-12
申请人： HITACHI LTD
发明人： MYAUCHI TOSHIMITSU , MAEDA TAKESHI , SUGYAMA TOSHIO , UNO MOTOO , YONEZAWA SEIJI , KAMEYAMA TADAHIKO , KANEDA NORYA
IPC分类号： G11B7/00 , G11B7/005 , G11B7/09

89. 发明专利

JP2585645B2 失效
公开(公告)号：JP2585645B2
公开(公告)日：1997-02-26
申请号：JP29553187
申请日：1987-11-24
申请人： HITACHI LTD
发明人： KAJI RYOKICHI , UNO MOTOO , ISHIGURO AKITO , WAKASA YASUYUKI
IPC分类号： G07D9/00 , B65H3/32

90. 发明专利

JP2577779B2 失效
公开(公告)号：JP2577779B2
公开(公告)日：1997-02-05
申请号：JP16500188
申请日：1988-07-04
申请人： HITACHI LTD
发明人： ISHIGURO AKITO , USHIZAKA HIROYUKI , UNO MOTOO , KAJI RYOKICHI
IPC分类号： G07D9/00 , B65H3/32 , B65H31/30 , B65H33/02

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