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11. 发明专利

JP2000268555A DISK DRIVING DEVICE 失效
公开(公告)号：JP2000268555A
公开(公告)日：2000-09-29
申请号：JP20827399
申请日：1999-07-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIMARU KENJI , TAKIZAWA TERUYUKI
IPC分类号： G11B33/08 , F16F15/08 , G11B19/20 , G11B25/04
摘要： PROBLEM TO BE SOLVED: To make increasable the freedom of vibration damping designing, to make realizable an anisotropic vibration damping characteristic, and to make minimizable the vibration space of the movable part of mass eccentricity without increasing the number of part items for a vibration damping part even in a thin recording disk driving device. SOLUTION: The vibration damping part 7 is fixed to the outer periphery of a movable part 6 having a base 3 fixed thereto, the base 3 having a disk driving motor 2, a recording/reproducing head 4 or the like mounted thereon, a fixed chassis 8 is fixed to the outer periphery of the vibration damping part 7, and the movable part 6, the vibration damping part 7 and the fixed chassis 8 are fixed altogether on plane. Thus, the device is made thin, and the freedom of designing in the vibration damping part 7 is increased.

12. 发明专利

JPH09139031A DISK DEVICE AND DISK CARTRIDGE 失效
公开(公告)号：JPH09139031A
公开(公告)日：1997-05-27
申请号：JP29586795
申请日：1995-11-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIMARU KENJI , HAYASHI TAKAYUKI
IPC分类号： G11B23/03 , G11B21/02
摘要： PROBLEM TO BE SOLVED: To reduce the number of components and to miniaturize a disk device by providing a driving mechanism to be used in common for plural heads in such a manner that a driving force transmitting means and a driving means are provided in a supporting means and the moving direction of the driving force transmitting means is made different from the moving direction of the supporting means. SOLUTION: At first, when a lead screw shaft 27 is rotated to the right by the rotation of a motor 30 to the right when viewed from this side, an engaging member 28 is driven in the direction of arrow A by the screwed engagement with a screw hole 28d and moved to the position of 2-dot chain line from the position of solid line. At this time, a signal is recorded/reproduced to a disk 1 by an optical head 3 while a supporting base 5 is moving in the direction of arrow C with the guide of a guiding shaft 4 and an engaging groove 28a. Simultaneously, the recording/ reproducing is made on the disk 1 by an optical head 23 while a supporting base 25 is moving in the direction of arrow E with the guide of a guiding shaft 24 and an engaging groove 28b. Next, when the motor is inversely rotated, the signal is recorded/reproduced against the disk 1 by the head 23 while the supporting base 25 is moving in the direction of arrow F with the guide of the guiding shaft 24 and the engaging groove 28b.

13. 发明专利

JPH0793848A DRUM DEVICE 失效
公开(公告)号：JPH0793848A
公开(公告)日：1995-04-07
申请号：JP23782293
申请日：1993-09-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIMARU KENJI , HONJO HIRONORI , YUGI NAOTO
IPC分类号： G11B15/43
摘要： PURPOSE:To stabilize tape tension control and tape traveling on a drum. CONSTITUTION:The tension control is performed in a position near a head by using at least one tension control member 8 provided on a tape sliding surface 4a of a fixed drum 4, detecting tape tension by a semiconductor pressure sensor 6a and controlling a tension control amt. in accordance with an output from this pressure sensor 6a. In addition, the stable tension control is performed by turning the tension control member 8 around a prescribed axis as a center or integrating the tension control member 8 and an airflow rate control part with each other. Moreover, tape tension adjustment is performed in the tape widthwise direction by arranging a plural number of tension control members 8 in biased positions in the tape widthwise direction.

14. 发明专利

JPH10116479A OPTICAL HEAD ADJUSTING DEVICE 失效
公开(公告)号：JPH10116479A
公开(公告)日：1998-05-06
申请号：JP26956296
申请日：1996-10-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKIZAWA TERUYUKI , IGAWA YOSHIHIRO , AKIMARU KENJI , MIYATA KOJI
IPC分类号： G11B21/02 , G11B7/085 , G11B7/095
摘要： PROBLEM TO BE SOLVED: To make it possible to precisely adjust the slant angle of a laser light axis in the radial direction and tangential direction of an optical disk, and to realize a slant angle adjustment within a movable range of an objective lens, by reducing mutual height fluctuation between an optical head and the optical disk due to adjustment. SOLUTION: The turning center point of a guide shaft by elevating and lowering operation is constituted so as to orthogonally intersect the radial direction of the disk and to be on a plane passing through a rotary central axis of a disk motor 4. Thus, even when the optical head is slant adjusted, the mutual height fluctuation between the optical head and the optical disk doesn't occur, and the slant angle adjustment is realized within the movable range of the objective lens, and excellent recording/reproducing is performed as an optical disk device. Further, by simultaneously raising/lowering one ends of two pieces of supporting guide shafts 2, 3, the slant angle adjustment of the optical head in the radial direction of the disk is performed, and further, by elevating/lowering one end of at least a piece of guide shaft, the slant angle adjustment of the optical head in the tangential direction of the disk is performed.

15. 发明专利

JPH1097771A DISK UNIT 失效
公开(公告)号：JPH1097771A
公开(公告)日：1998-04-14
申请号：JP24949196
申请日：1996-09-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IGAWA YOSHIHIRO , TAKIZAWA TERUYUKI , AKIMARU KENJI
IPC分类号： G11B21/08 , G11B7/085
摘要： PROBLEM TO BE SOLVED: To satisfactorily perform reproduction by constituting the unit of a head for recording or reproducing 1st and 2nd information storage areas, a head moving means and a stopper and reproducing the 2nd information storage area after the head is abutted against the stopper. SOLUTION: A bar code 21 is positioned from a radius R1 to a radius R2, and a position of an objective lens 19 at the time of positioning the optical head by its abutting against the stopper 18a falls within a range from a radius S1 to a radius S2. When the objective lens 19 is in a position of the radius S2, the bar code 21 can be reproduced, and after performing usual operation recovery processing, the bar code reproducing operation is finished. Then, when the objective lens 19 is in a position of the radius S1, the bar code 21 cannot be reproduced, so that turning to objective lens shifting processing 41 and regenerative signal processing 42 are carried out. By constituting the device in such a way, positioning the head in abutting against the stopper is feasible, and hence the bar code in the 2nd information recording area can satisfactorily be performed.

16. 发明专利

JPH08202995A NAVIGATION DEVICE 失效
公开(公告)号：JPH08202995A
公开(公告)日：1996-08-09
申请号：JP853895
申请日：1995-01-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： GOTO KATSUMI , MURATA SHIGEKI , AKIMARU KENJI
IPC分类号： G09B29/00 , G01C21/00 , G01S19/14 , G01S19/34 , G08G1/0969 , G08G1/137 , G01S5/14
摘要： PURPOSE: To provide a navigation device which has a communication means and is capable of displaying not only the present position of the driver's own vehicle but also routes of another vehicle. CONSTITUTION: This device is provided with a route judging part 12 between two positions communicating the positional information measured by a GPS part 3 between a present vehicle 1 and the other vehicle 2 via a radio communication equipment 5, comparing the reception history of the positional information on the other vehicle 2 stored in an outer vehicle positional information storage part 11 and the map information stored in a CD-ROM 17 and discriminating an other vehicle route 16, a color LCD display 14 simultaneously displaying the discriminated other vehicle route 16 and a present vehicle location 4 on a road map 15.

17. 发明专利

JP2000260174A DISK DEVICE 失效
公开(公告)号：JP2000260174A
公开(公告)日：2000-09-22
申请号：JP5977999
申请日：1999-03-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAJI YOSHITO , IGAWA YOSHIHIRO , AKIMARU KENJI , INADA MASAHIRO
IPC分类号： G11B33/02 , G11B33/12
摘要： PROBLEM TO BE SOLVED: To prevent the occupying region of a head from overlapping on an occupying region of a flexible cable by arranging the flexible cable to a shape having a first curved part which is gently bent to a U shape and moves by accompanying the sliding motion of a slide part and a second curved part which is bent to an acute angle like a hair pin in succession thereto. SOLUTION: The flexible cable 300 is formed to the shape having the first curved part 300a which is gently bent to the U shape and moves by accompanying the sliding motion of the slide part 100 when viewed from a transverse direction and the second curved part 300b which is bent to the acute angle like the hair pin in succession thereto and is fixed to a chassis body 200. As a result, the occupying region of the flexible cable may be made smaller and, therefore, the disk device may be so constituted that the occupying region of the head and the occupying region of the flexible cable do not overlap on each other even in the limited space of the disk device.

18. 发明专利

JPH0921443A VIBRATION CONTROL DEVICE, INFORMATION RECORDING AND REGENERATING DEVICE, AND VEHICLE 失效
公开(公告)号：JPH0921443A
公开(公告)日：1997-01-21
申请号：JP17183095
申请日：1995-07-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OKAMOTO TOMOYUKI , HAYASHI TAKAYUKI , FUJII HITOSHI , ISHIKAWA TAKAHITO , AKIMARU KENJI
IPC分类号： F16F15/02 , G11B33/02 , G11B33/08
摘要： PROBLEM TO BE SOLVED: To realize the damping effect appropriate for various environment, of which external vibration characteristic is different from each other. SOLUTION: Plural vibration control damper having a different transmitting characteristic, a driving unit 5 supported by a supporting frame 4 in the floating condition through the vibration control dampers, a vibration detecting sensor 6 for detecting the vibration to be applied to the supporting frame 4, and a vibration control damper switching mechanism 7 for switching a vibration control damper in response to the detecting signal, which is detected by the vibration detecting sensor 6, among the plural vibration control dampers so as to be interposed between the supporting frame 4 and the driving unit 5 are equipped.

19. 发明专利

JPH08297936A RECORDING AND REPRODUCING DEVICE AND RECORDING AND REPRODUCING DEVICE WITH PHOTOGRAPHING DEVICE 失效
公开(公告)号：JPH08297936A
公开(公告)日：1996-11-12
申请号：JP10333795
申请日：1995-04-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIKAWA TAKAHITO , HAYASHI TAKAYUKI , FUJII HITOSHI , OKAMOTO TOMOYUKI , AKIMARU KENJI
IPC分类号： G11B21/10 , G11B7/085
摘要： PURPOSE: To obtain less-disturbed stable videos by recording and reproducing data in stable states by controlling the drive of a recording and reproducing means in a highly vibration-resistant direction even when a recording and reproducing device is inclined upward or downward while a disk is maintained in a vertical position. CONSTITUTION: A balancer 22 is provided near one of the two intersections of an axis with passes through the center of a rotating shaft 23 and is parallel to four wires 17 and the outer peripheral section of a rotating member 20 on the side on which the wires 17 are not supported by a base section 16 against the shaft 23. In addition, all of a pickup 12 and optical system are provided on the rotating member 20 and rotate together with the member 20. When a recording and reproducing device constituted in such a way is inclined upward or downward while a disk 5 is maintained on the device in a vertical position, the rotating member 20 rotates so that the member 20 can be positioned immediately below the center of rotation of the member 20 due to its own weight and the wires 17 can necessarily come to positions above an objective lens holder 18. Therefore, the wires 17 are not deformed elastically by the moment which is caused by the weight of the holder 18.

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