公开(公告)号：JPH11273334A

公开(公告)日：1999-10-08

申请号：JP7243898

申请日：1998-03-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SUZUKI YUJI ,  OSATO MAMORU ,  AEBA KOJI

IPC: G11B33/14 ,  G11B23/03 ,  G11B33/12

Abstract: PROBLEM TO BE SOLVED: To prevent dust from easily entering a disk cartridge during recording and reproducing by providing a shield means for limit entry of external air into the disk cartridge during recording and reproducing of data to the recording medium of a disk. SOLUTION: A shield means is composed of a cover 242 to be bonded to a cartridge holder 56 to shield a head inserting aperture from the upper side, a spacer 243 for shielding the circumference of upper side head inserting port of a cartridge 5, a spacer to be bonded to the bottom plate 41a of a chassis to shield the circumference of the lower head inserting hole of a cartridge 5, a spacer 245 for shielding the external circumference of a center core hole 6 and a spacer 246 for shielding the external circumference of a spindle motor 51. Thereby, during recording and/or reproducing of a floppy disk 1, dust never flows into the inside, together with the external air, of the cartridge 5 through the head inserting hole and center core hole 6.

Abstract translation: 要解决的问题：为了在记录和再现期间防止灰尘容易地进入盘盒，通过提供用于在将数据记录和再现到盘的记录介质的过程中将外部空气限制进入盘盒的屏蔽装置。 解决方案：屏蔽装置由盖子242组成，该盖子242被连接到盒保持器56以屏蔽从上侧的插头孔;隔离件243，用于屏蔽盒5的上侧头部插入口的圆周;间隔件 被接合到底架的底板41a以屏蔽盒5的下头插入孔的周边，用于屏蔽中心芯孔6的外周的间隔件245和用于屏蔽外围的外周的间隔件246 因此，在软盘1的记录和/或再现期间，灰尘不会通过头插入孔和中心芯孔6与盒5的外部空气一起流入。

公开(公告)号：JPH11213600A

公开(公告)日：1999-08-06

申请号：JP846398

申请日：1998-01-20

Applicant: SONY CORP

Inventor： OSATO MAMORU

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To surely remove the dust of the size of several microns intruding inside a cartridge. SOLUTION: The thickness H13 of the upper shell 43 of the cartridge 45 for freely rotatably housing a large capacity floppy disk HFD inside is thickened to about 3.5 mm, a filter 51 for dust collection is housed within the thickness H13 , an air flow generated by the high speed rotation of the large capacity floppy disk HFD is utilized and the dust or the like of the size of the several microns inside the cartridge 5 is sucked or adhered to the dust collecting material 52 of the filter for the dust collection and removed.

公开(公告)号：JPH11213599A

公开(公告)日：1999-08-06

申请号：JP846898

申请日：1998-01-20

Applicant: SONY CORP

Inventor： OSATO MAMORU

IPC: G11B23/033

Abstract: PROBLEM TO BE SOLVED: To provide a large capacity floppy disk cartridge for inhibiting erroneous insertion to an existing small capacity floppy disk drive. SOLUTION: The thickness H11 of this cartridge 45 for freely rotatably housing a large capacity floppy disk HFD inside is constituted to be H11 = about 5 mm, the thickness H12 of the lower shell 44 of the cartridge 45 is constituted to be H12 = about 1.5 mm and the thickness H13 of an upper shell 43 is constituted to be H13 = about 3.5 mm. Thus, the inconvenience of erroneously inserting this large capacity floppy disk cartridge into the small capacity floppy disk drive, damaging the thin type large capacity floppy disk of low rigidity and destroying the data of a narrow track width is prevented and high safety is secured.

公开(公告)号：JPH1186397A

公开(公告)日：1999-03-30

申请号：JP24565897

申请日：1997-09-10

Applicant: SONY CORP

Inventor： TOMITA YASUSHI ,  SUZUKI HIROYUKI ,  OSATO MAMORU

IPC: G11B23/00 ,  G11B17/028

Abstract: PROBLEM TO BE SOLVED: To provide a disk drive device capable of preventing deterioration of chucking precision due to a driving pin for chucking. SOLUTION: This disk drive device is provided with a disk table 2 for loading a floppy disk hub, a spindle shaft 5 provided so as to be protruded from a hub loading surface 2b provided projectingly from the base part main surface part 2a of the disk table 2 and inserted into the spindle shaft inserting hole of the hub and a driving pin 3 formed by using a low friction member, provided to be protruded from the base part main surface part 2a while being elastically pressed in a direction away from the spindle shaft 5 within a surface vertical to the spindle shaft 5 and fitted in the driving pin inserting hole.

公开(公告)号：JPH03120675A

公开(公告)日：1991-05-22

申请号：JP25939789

申请日：1989-10-04

Applicant: SONY CORP

Inventor： OSATO MAMORU ,  KADONAGA AKIRA

IPC: G11B21/02 ,  H02K33/16

Abstract: PURPOSE:To miniaturize and to thin a disk device by arranging a motor rocking and driving a head arm on the outer pheriphery of an arm shaft in a ring. CONSTITUTION:The ring-shaped motor 13 consisting of ring-shaped magnets 15 and plural coils 17 arranged in the ring by facing the magnets 15 is arranged on the outer periphery of the arm shaft 2, and the head arm 4 is rocked and driven by the motor 13. The ring-shaped motor 13 arranged on the outer periphery of the arm shaft 2 effectively generates torques in the whole area of the outer periphery of the arm shaft 2. Thus, the maximum radius and the height size of the motor 13 as against the center of the arm shaft 2 are reduced, and the whole device is miniaturized and thinned.

公开(公告)号：JPH01320434A

公开(公告)日：1989-12-26

申请号：JP15287488

申请日：1988-06-21

Applicant: SONY CORP

Inventor： TANAKA TORU ,  OTA KEIICHI ,  OSATO MAMORU

IPC: G01D5/36 ,  G11B21/08

Abstract: PURPOSE:To prevent the occurrence of an error to be caused by a temperature change and to attain a highly accurate detection by rotating a discoid scale together with an rocking arm after the scale is fitted to the outer periphery of the rocking central shaft. CONSTITUTION:A discoid scale 31 is provided, which is made of numerous slits 40 arranged radically to the center of a disk 39 formed in an annular shape at prescribed intervals in the circumferential direction of the disk 39, is fitted to the outer periphery of a rocking central shaft, such as an arm shaft, etc., and rotated together with an rocking member of a head arm, etc. The discoid scale 31 constituted in such way uniformly expands or contracts in all directions when a temperature change occurs. When, for example, the scale 31 expands, a slit detecting point A1 moves to a point A3 on the extension line in the lengthwise direction of the slit 40 of the scale 31 and the rotational angle of the head arm goes to a fixed angle theta1 even under a normal and high temperature conditions and no off-track of the head occurs. Thus occurrence of an error due to a change in temperature is prevented and highly accurate detection is made possible.

公开(公告)号：JPS61137255A

公开(公告)日：1986-06-24

申请号：JP25933184

申请日：1984-12-10

Applicant: Sony Corp

Inventor： OSATO MAMORU ,  SUMINO UTAO

IPC: G11B15/665

Abstract: PURPOSE: To constitute economically a mode selecting mechanism with high assembling property and to attain quiet mode switching by arranging a mode selecting lever to be driven by the mode selecting mechanism to be driven by a tape loading motor on a space part formed on the lower side of a loading slider for tape loading.
CONSTITUTION: When a mode selecting cam 35 is rotated in the counterclockwise direction, a projection 35C is disengaged from a projected part 44A. Then, a stopper 42 and a latch 44 are rotated in the clockwise direction by the exciting force of a spring 43 the 2nd engaging part 42B is disengaged from a locking groove 35A and the 1st engaging part 42A is engaged with a locking groove 31A to lock a loading ring 31. When a rotary switch 36 detects a stop mode, a motor 22 is stopped. Since the 1st pin 38 is moved from a position P
1 to a position P
2 of a groove 35B, a mode transmission lever 37 is rotated in the counterclockwise direction and the mode selecting lever 40 is moved in the counterclockwise direction by the 2nd pin 39 to actuate a braking mechanism to the working status.
COPYRIGHT: (C)1986,JPO&Japio

Abstract translation: 目的：为了经济地构成具有高组装性能的模式选择机构，并且通过将由模式选择机构驱动的模式选择杆配置为由形成在下侧的空间部分上的带装载马达驱动来实现安静模式切换 的装载滑块用于磁带加载。 构成：当模式选择凸轮35沿逆时针方向旋转时，突起35C与突出部分44A脱离。 然后，止动件42和闩锁44通过弹簧43的激励力沿顺时针方向旋转，第二接合部42B与锁定槽35A分离，第一接合部42A与锁定槽31A接合以锁定 装载环31.当旋转开关36检测到停止模式时，马达22停止。 由于第一销38从位置P1移动到槽35B的位置P2，所以模式传递杆37沿逆时针方向旋转，并且模式选择杆40通过第二销39沿逆时针方向移动以致动 制动机制到工作状态。