公开(公告)号：CA2243786A1

公开(公告)日：1999-01-31

申请号：CA2243786

申请日：1998-07-23

Applicant: SONY CORP

Inventor： TOMITA YASUSHI

IPC: G11B23/00 ,  G11B23/03 ,  G11B23/033

Abstract: A signal recording medium capable of being strongly secured to a rotation part such as a disc table even on high-speed rotation. A floppy disc includes a hub at its center portion and a disc substrate having in its disc-shaped main portion a circular opening operating as a mounting portion for the hub and also having a signal recording surface on the disc-shaped main portion. The hub includes an abutment surface abutted against the disc table rotated in unison with the floppy disc and a facing suction surface spaced apart from a suction magnet mounted on a rim portion of the disc table when the abutment surfaces is abutted against a hub setting surface of the disc table.

公开(公告)号：JP2000123564A

公开(公告)日：2000-04-28

申请号：JP29090498

申请日：1998-10-13

Applicant: SONY CORP

Inventor： TOMITA YASUSHI

IPC: G11B33/12 ,  G11B25/04 ,  G11B33/14

Abstract: PROBLEM TO BE SOLVED: To improve the reliability of recording and reproducing operations by controlling the flow of air in a device main body. SOLUTION: A cartridge holder 231 is provided in a device main body 101 to move between the insertion ejection position, through which first and second disk cartridges are inserted and ejected through a cartridge insertion ejection port 110 of a front panel 109, and the mounting position at which a recording and a reproducing of information signals to the first and the second disks by a head section 121 are made possible. The cartridge holder 231 has a notch section 236 for recording and reproducing so that the section 121 is made opposing to the mounted first and second disks. Then, a first flow controlling member 331 is provided in the main body 101 to control the air flow in the inner and the outer sides of the section 236 of the holder 231 in the space between the holder 231 and a top plate section 108 regardless of the position of the holder 231, i.e., at the insertion and ejection position or the mounting position.

公开(公告)号：JPH1173706A

公开(公告)日：1999-03-16

申请号：JP23276597

申请日：1997-08-28

Applicant: SONY CORP

Inventor： TOMITA YASUSHI ,  SUZUKI HIROYUKI ,  OSATO MAMORU

IPC: G11B17/028 ,  G11B19/20

Abstract: PROBLEM TO BE SOLVED: To enable the proper chucking even when the frictional torque from a lifter, etc., is decreased at the time of chucking operation, by increasing the rotational friction force in the manner of adding the friction force to a floppy disk. SOLUTION: When a disk cartridge 100 is loaded and positioned, a capacity discriminating hole of the disk cartridge 100 is detected by a detection means 5, therefore, e.g. the high density recording floppy disk having no lifter for abutting liners 105 on the signal recording surface in the cartridge is discriminated. At the time of chucking operation, a pressurizing means 2 is controlled by a control circuit 4, and the outside surface 104a of the cartridge 104 is pressurized by a driver 2a to increase the contact pressure of the liners 105 against the signal recording surface of the floppy disk 101. In this state, a disk table 41 is rotated to generate the rotational friction force required for the chucking operation. At the time of the recording/reproducing operation, the pressurization effected by the pressurizing means 2 is released.

公开(公告)号：JP2009037693A

公开(公告)日：2009-02-19

申请号：JP2007201200

申请日：2007-08-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TOMITA YASUSHI ,  KUMAGAI HIDEAKI

IPC: G11B17/051

Abstract: PROBLEM TO BE SOLVED: To accurately determine the presence of an abnormal inserting/ejecting operation while suppressing the number of detection parts such as switches. SOLUTION: The drive device is provided with a casing having an insertion port for inserting/ejecting a disk recording medium, a drive motor 102, a slide part which receives a motive force from the drive motor to reciprocate in a straight direction, a conveying part associated with the reciprocation of the slide part to perform an insertion/ejection operation for inserting the recording medium into the casing via the insertion hole or ejecting the recording medium from the casing, a first detection part 234 whose state is changed according to the position of the sliding part, a second detection part 232 for detecting the rotational direction of the drive motor, and a determination part 236 for determining the presence of an abnormal inserting/ejecting operation by the conveying part based on the state of the first detection part and the rotational direction of the drive motor detected by the second detection part. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：在抑制诸如开关的检测部件的数量的同时，准确地确定异常插入/排出操作的存在。 解决方案：驱动装置设置有具有用于插入/弹出盘记录介质的插入口的壳体，驱动马达102，接收来自驱动马达的直动方向往复运动的滑动部， 与滑动部件的往复运动相关联的输送部件，以执行用于经由插入孔将记录介质插入到壳体中或者从壳体喷射记录介质的插入/弹出操作;第一检测部件234的状态根据 滑动部的位置，用于检测驱动马达的旋转方向的第二检测部232，以及基于第一检测的状态来确定输送部的异常的插入/排出动作的存在的判定部236 部分和由第二检测部检测的驱动马达的旋转方向。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2000113561A

公开(公告)日：2000-04-21

申请号：JP28079698

申请日：1998-10-02

Applicant: SONY CORP

Inventor： OSATO MAMORU ,  SAITO HITOSHI ,  TOMITA YASUSHI

IPC: G11B17/32

Abstract: PROBLEM TO BE SOLVED: To facilitate fine adjustment of a load pressure and to make the device strong against shock or vibration by movably pressing the head arm to a magnetic disk side through energization to a piezoelectric member and to a diamagnetic disk side through the cut-off of such energization. SOLUTION: With a piezoelectric rubber 8 energized and with a spindle motor rotatably driven at a prescribed low speed, the length of the piezoelectric rubber 8 is reduced in resistance against elasticity, imparting a rotary pressing force to a pair of upper and lower head supporting leaf springs 2, 3 in the direction of the arrow a1. Then, a load pressure F1, which is the contact load of the pair of upper and lower magnetic heads 6, 7 against the upper and lower faces of a small capacity floppy disk FD, is automatically adjusted to a prescribed high load pressure, the optimum value. As a result, centering for example can be surely carried out for a small capacity floppy disk FD against the center of the spindle for the purpose of recording/reproducing in a small capacity of data such as 1-2MB or the like.

公开(公告)号：JP2000100103A

公开(公告)日：2000-04-07

申请号：JP26639598

申请日：1998-09-21

Applicant: SONY CORP

Inventor： OSATO MAMORU ,  SAITO HITOSHI ,  TOMITA YASUSHI

IPC: G11B21/20

Abstract: PROBLEM TO BE SOLVED: To vary a load pressure of a magnetic head to a magnetic disk and save electricity by varying a depressing force of a load pressure variable leaf spring to elastically press a head arm loading the magnetic head. SOLUTION: Head arms 4, 5 mounted via head arm-supporting plate springs 2, 3 to the upper, lower sides of a carriage 1 load magnetic heads 6, 7 to upper, lower opposing faces of leading ends. A leaf spring 9 constituting a load spring depresses at a leading end 9a the head arm 5 in a direction of an arrow (a). A load pressure variable leaf spring 8 constituting a load pressure variable load spring elastically presses at a leading end 8a via a ball 13 the head arm 4 in the direction of the arrow (a). The ball 13 is movable along a U groove 12 formed to a head arm upper face 4a and becomes stable at a position of either a positioning recess 14 or a positioning recess 15 by a toggle mechanism. Accordingly, a depressing point of the load pressure variable leaf spring 8 to the head arm 4 is controlled to move.

公开(公告)号：JPH11273238A

公开(公告)日：1999-10-08

申请号：JP6911398

申请日：1998-03-18

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TOMITA YASUSHI

IPC: G11B7/00 ,  G11B7/004 ,  G11B19/00 ,  G11B19/02 ,  G11B19/20 ,  G11B19/28

Abstract: PROBLEM TO BE SOLVED: To start a spindle motor even though a load is applied during the start while conducting a chucking of a recording disk, to also rotate the disk at a high speed and to reduce the power consumption by setting a second rotational velocity after switching the energizing method to a one directional energizing.
SOLUTION: A system controller 27 performs the switching control of a motor driver 31 by the rotational velocity detecting signals, which follow the frequency to voltage (F-V) signals from an FG 50, and the target rotational velocity of a spindle motor 3 is switched from a first rotational velocity to a second rotational velocity, which is faster than the first rotational velocity, during the control.
COPYRIGHT: (C)1999,JPO

Abstract translation: 要解决的问题：即使在进行记录盘的夹持期间在启动期间施加负载来启动主轴电动机，也可以高速旋转盘并且通过在第二转速之后设定第二转速来降低功率消耗 将激励方式切换为单向通电。 解决方案：系统控制器27通过跟随来自FG50的频率 - 电压（FV）信号的旋转速度检测信号来执行电动机驱动器31的切换控制，并且主轴电动机3的目标转速从 在控制期间到第二旋转速度的第一旋转速度，其比第一旋转速度快。

公开(公告)号：JP2000123449A

公开(公告)日：2000-04-28

申请号：JP30784898

申请日：1998-10-14

Applicant: SONY CORP

Inventor： TOMITA YASUSHI

IPC: G11B19/20 ,  G11B17/028

Abstract: PROBLEM TO BE SOLVED: To surely perform the chucking of a disk and to prevent damage to the disk and a device main body. SOLUTION: This device is constituted so that the rotation of a spindle motor 805 is controlled by a controller 801, and a disk like recording medium is inserted into a chucking hole formed on the center of its central hub in the outer periphery of the spindle to be chucked on an upper surface of a disk table so that the disk table placing a floppy disk 800 is rotated at a first rotational speed by the acceleration/deceleration of the rotational speed of the spindle motor. Then, the rotational speed of the spindle motor 805 is accelerated so that the disk table is rotated at a second rotational speed faster than the first speed, and a drive pin is inserted into a positioning hole formed on the eccentric position of the central hub, and the drive pin is abutted on the outer peripheral side edge and the rotational direction side edge of the positioning hole, and the floppy disk 800 is centered for the spindle.

公开(公告)号：JP2000113620A

公开(公告)日：2000-04-21

申请号：JP27898998

申请日：1998-09-30

Applicant: SONY CORP

Inventor： TOMITA YASUSHI

IPC: G11B21/16

Abstract: PROBLEM TO BE SOLVED: To fit a support base to a support arm with high precision. SOLUTION: This device is equipped with a support arm 122 which supports a head part 121 recording and reproducing information signals to and from 1st and 2nd magnetic disks and a base plate 123 fitted to the base part of the support arm 121. This support arm 122 has a reference groove 149, on the basis of which the support arm 122 is positioned along the length by inserting a positioning projection for positioning a base plate 12 on the support arm 122, at the base part and also has a positioning guide hole 150 into which a guide projection for guiding the lengthwise position of the support arm 122 is inserted to guide the lengthwise position. The base plate 123 has a positioning reference groove 179 on the basis of which the lengthwise is position is determined by inserting a positioning projection.

公开(公告)号：JPH11120730A

公开(公告)日：1999-04-30

申请号：JP20390698

申请日：1998-07-17

Applicant: SONY CORP

Inventor： TOMITA YASUSHI ,  OSATO MAMORU ,  SUZUKI HIROYUKI

IPC: G11B23/00

Abstract: PROBLEM TO BE SOLVED: To surely load a disk record medium on the high-speed rotated disk rotation operating part of a disk drive device and to use the same for a common disk drive device with compatibility with a conventional magnetic disk. SOLUTION: This disk record medium is provided with a main surface used as a signal recording part, a disk base body 73 having a roughly circular center hole in the center of the main surface and a hub 72 attached to the disk base body 73 so as to seal a center hole 73a provided in the disk base body 73. The hub 72 is provided with an inner peripheral part 72f having a spindle hole 72c formed in the center to interpolate the spindle of a disk table side and an outer peripheral part 72g connected to the outside of the inner peripheral part 72f and formed via a step part so as to be protruded from the inner peripheral part 72c to the side for inserting the spindle. Further, the hub 72 is provided with a driving pin engaging hole 72d for inserting the driving pin of the disk table side.