公开(公告)号：JPH11185355A

公开(公告)日：1999-07-09

申请号：JP34934897

申请日：1997-12-18

Applicant: SONY CORP

Inventor： YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  MAMIYA TOSHIO ,  YAMADA TAKASHI

IPC: G11B17/26 ,  G11B19/02

Abstract: PROBLEM TO BE SOLVED: To increase the capacity of the hard disk changer device of the storage device used in an information processing device and to reduce the cost. SOLUTION: A removeable hard disk device 1 is mounted on an elevating and lowering device 33 and arranged in an external casing 32 in a freely movable manner in the up and down direction. Corresponding to the device 1, a magazine 30, in which plural disk cartridges 22 are stored in a stacked-up manner, is arranged. The cartridge 22 stores hard disks 21. An arbitrary cartridge 22 is sent to the device 1 by a disk cartridge moving mechanism 36 which is provided on the device 33. A plastic disk, on which a head position determining servo pattern is molded in a three-dimensional manner, is used as the disk 21.

公开(公告)号：JPH10288221A

公开(公告)日：1998-10-27

申请号：JP9416897

申请日：1997-04-11

Applicant: SONY CORP

Inventor： YAMADA TAKASHI ,  OUCHI HIRONOBU ,  YAMAMOTO KAZUYUKI ,  YOTSUYA MICHIO ,  KAWAZOE KAZUSHIGE ,  MAMIYA TOSHIO ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: F16C17/10 ,  G11B19/20

Abstract: PROBLEM TO BE SOLVED: To improve the durability and suppress the run-out of a rotary shaft. SOLUTION: Herringbone grooves 111 are cut in the lower part of the outer peripheral surface of a rotary shaft 106. Plural notches 11 are formed on the outer periphery of a rotary thrust plate 10 in which the rotary shaft 106 is fitted and fixed. Lubricating fluid is sealed between the rotary shaft 106 and the rotary thrust plate 10, and bearing surfaces 113 or the inside surface of a shaft hole. When the rotary shaft 106 and the rotary thrust plate 10 are rotated, pressure is generated by the herringbone grooves 111 to support radial load. Further, pressure is generated by the notches 11 in the neighborhood of the outer periphery of the rotary thrust plate 10 to receive thrust load. Furthermore, since the lubricating fluid is efficiently circulated by the notches 11, the frictional loss is reduced to enhance the durability, and thus to suppress the rotational run-out.

公开(公告)号：JPH10125015A

公开(公告)日：1998-05-15

申请号：JP33481196

申请日：1996-11-29

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMADA TAKASHI ,  YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B21/02 ,  G11B17/04

Abstract: PROBLEM TO BE SOLVED: To retract a rotary actuator to the outside of a disk cartridge completely, achieve operation positively and stably, and make thin and miniaturize the entire device by retracting a read/write head to the outside of the disk cartridge at the time other than reading/writing. SOLUTION: A read/write head is retracted completely outside a disk cartridge 16 in cases other than reading/writing and is inserted and moved into the disk cartridge 16 only for reading/writing, thus retracting a rotary actuator 51 completely outside the disk cartridge 16 when inserting and ejecting the disk cartridge 16 and reducing cost due to the decrease in the number of parts and at the same time opening or closing a shutter, achieving an improved reliability, and further make thin and miniaturize an entire device.

公开(公告)号：JPH1064226A

公开(公告)日：1998-03-06

申请号：JP22409896

申请日：1996-08-26

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMAMOTO KAZUYUKI ,  YAMADA TAKASHI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To eliminate a complicated mechanism to prevent erroneous loading by forming the end part side of a disc cartridge as a curving surface and then opening or closing the aperture by sliding the shutter along the curving surface. SOLUTION: If a disc cartridge 1 is loaded erroneously with a reversed front surface, the longer side surface aperture of the disk cartridge 1 is located at the right side, but the side surface 1c collides with a stopper member 48 and can no longer be loaded any more before the disc cartridge 1 is totally loaded. Moreover, since the disk cartridge 1 does not come in contact with a head 50 of the actuator 49 in standby, the head 50 is not broken by the erroneous loading either.

公开(公告)号：JPH1064211A

公开(公告)日：1998-03-06

申请号：JP22419096

申请日：1996-08-26

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMADA TAKASHI ,  YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B21/21 ,  G11B21/02 ,  G11B21/12 ,  G11B21/22

Abstract: PROBLEM TO BE SOLVED: To prevent deviation between ramp moving locus and moving locus of the end part of a rotating arm to assure stable operation by introducing the structure that the moving fulcrum of ramp is matched with the rotation center of the rotating arm. SOLUTION: When a cartridge 100 is inserted, a fork-shaped end part of a ramp arm 27a is crossing a hard disc 101 to sandwich the hard disc 101. A projection 23 falls from the ramp arm 27a by sliding over the sloping surface of the end part of the ramp arm 27a, a magnetic head 21 is placed in contact with a recording surface of the hard disc 101 with a spring force of a suspension 20. When the write/read operation of signal stops from this condition, the magnetic head 21 is lifted for separation from the recording surface of the hard disc 101.

公开(公告)号：JPH1064202A

公开(公告)日：1998-03-06

申请号：JP24427696

申请日：1996-08-26

Applicant: SONY CORP

Inventor： MAMIYA TOSHIO ,  YAMADA TAKASHI ,  YAMAMOTO KAZUYUKI ,  TAKAHASHI KAZUO ,  OSHIMA EIJI

IPC: G11B21/02

Abstract: PROBLEM TO BE SOLVED: To reduce velocity dependence to float a slider steadily above a disk surface by installing a read/write head on a slider of medium floating type to be supported by a rotation supporting member. SOLUTION: A pair of suspensions 58a and 58b are composed of flexible plate spring-like members, in which openings 60 are arranged at the center of the end to reduce rigidity. Thereby installed sliders 52a and 52b can undulate easily. The TPC type slider 52A improves constant flying height performance, which reduces velocity dependence, and makes it possible to obtain almost flat performance either inside or outside in the disk radius direction. Thereby, the slider can steadily be floated above a disk surface.

公开(公告)号：JPH09265689A

公开(公告)日：1997-10-07

申请号：JP7285496

申请日：1996-03-27

Applicant: SONY CORP

Inventor： TAKAHASHI KATSUNORI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  SUZUKI KAZUYOSHI

IPC: F16H1/06 ,  G11B15/26

Abstract: PROBLEM TO BE SOLVED: To effectively reduce gear noise at the time of mesh. SOLUTION: In the mechanism having an output gear part 116 on a driving gear 13 coupled with a rotor 10 of a motor to be integrally rotated together and to rotationally drive a driving transmission gear 8 meshed with this output gear part 16, the driving gear 13 is integrally molded of a wear resisting resin member having pliability, having a rotary body 14 coupled directly with the rotor 10 and driven to rotate, and this rotary body 14 and the output gear part 16 are integrally formed by riblike connecting parts 15 which are torsionally deformed in the rotating-direction by a rotation load of the driving transmission gear 8 meshed with the output gear part 16.

公开(公告)号：JPH09213052A

公开(公告)日：1997-08-15

申请号：JP2429996

申请日：1996-02-09

Applicant: SONY CORP

Inventor： SUZUKI KAZUYOSHI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  TAKAHASHI KATSUNORI

IPC: G11B23/30 ,  G11B15/07

Abstract: PROBLEM TO BE SOLVED: To obtain a recording and reproducing device such as a VCR device, etc., capable of cleaning contact surfaces of detecting terminal of a cassette and contact terminal of an information detecting body respectively immediately before their electric contact operation so as to ensure electric contact between them. SOLUTION: This VCR device is equipped with a cassette 4A(4B) having a detecting terminal plate 40 on a side part for the purpose of reading information of the kind and contents of the cassette housing a recording medium and writing such information and the information detecting body 30 having a contact pin 33 to be in electrical contact with the detecting terminal plate 40 of this cassette for the purpose of detecting information about the cassette. In this case, a cleaning brush 43 formed into a narrow rectangular shape out of a film-like member with a large number of slits is fitted in a visor-like pattern above the contact pin 33 to the information detecting body 30, and when the detecting terminal plate 40 of the cassette is lowered from the upper part to the information detecting body 30, the cleaning brush 43 is elastically deformed to rub the detecting terminal plate 40 of the cassette and the contact pin 33 of the information detecting body 30 respectively so as to perform its cleaning operation.

公开(公告)号：JPH09180306A

公开(公告)日：1997-07-11

申请号：JP34381495

申请日：1995-12-28

Applicant: SONY CORP

Inventor： SUZUKI KAZUYOSHI ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  TAKASE MASATAKE ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  TAKAHASHI KATSUNORI

IPC: G11B15/32

Abstract: PROBLEM TO BE SOLVED: To provide a recording and reproducing device with a high reliable limiter mechanism for a reel base by greatly reducing the number of structural parts for the limiter mechanism, facilitating their assemblage simplifying the operational function. SOLUTION: In the recording and reproducing device, such as VCR(video cassette recorder), etc., capable of changing a space between two reel bases 1 and 2 by a reel base moving mechanism 30 and selectively loading a large and a small tape cassettes different in size into the reel bases 1 and 2, the limiter mechanism 90 for energizing the reel bases 1 and 2 to be positioned at positions corresponding to different sized tape cassettes is composed of a fitting plate 91 supported on a 1st arm member 31 of the reel base moving mechanism 30 and one pair of leaf spring parts 92a and 92b capable of elastic deformation, confronting each other via axis holding pieces 93a and 93b holding an axial pin 35 between them as a turning fulcrum axis of the reel base moving mechanism 30, formed integrally with this fitting plate 91.

公开(公告)号：JPH09180301A

公开(公告)日：1997-07-11

申请号：JP33730395

申请日：1995-12-25

Applicant: SONY CORP

Inventor： TAKASE MASATAKE ,  MAMIYA TOSHIO ,  AKIMOTO KATSUJI ,  UETAKE AKIHIRO ,  IKEMA KATSUAKI ,  SUZUKI KAZUYOSHI ,  TAKAHASHI KATSUNORI

IPC: G11B15/43 ,  G11B15/24

Abstract: PROBLEM TO BE SOLVED: To prevent the damage of a recording tape and to improve the wear resistance of a reproducing head by stopping the recording tape while keeping the holding of a tape sending mechanism and performing an operation for slackening the tape. SOLUTION: When shifting to a standby mode, a control means controls a tape sending mechanism so as stop a a recording tape 308 whole the tape 308 is held between a pinch roller 4 and a capstan 3. By controlling a tension regulator mechanism, a locking piece 11 on a chassis 1 for locking one end of a tension regulator spring 12 is moved to a tension regulator arm 5 and by reducing the expansion of the tension regulator spring 12, the tension of a band brake 10 is reduced. Thus, the reproducing device is provided, wherein a contact force between the recording tape 308 and a rotary head 2 is weakened, the damage of the recording tape 308 is prevented and the resistance of the rotary head 2 is improved.