公开(公告)号：DE69110718T2

公开(公告)日：1996-02-08

申请号：DE69110718

申请日：1991-03-18

Applicant: IBM

Inventor： MATSUSHITA HIROSHI ,  NANKE KOICHIRO ,  TAKAHASHI KOUJI

IPC: G11B17/04 ,  G11B17/043

Abstract: An information reproduction apparatus is provided comprising: supporting means for supporting a recording medium; a drive source for moving the recording medium between an initial insertion position and a reproduction position by driving said supporting means; transmission means incorporating a transmission element for transmitting the driving force of said drive source to said supporting means; characterised by retraction means operable to disengage said transmission element from said transmission means; and motion means operable to drive the recording medium from the reproduction position to the initial insertion position when said transmission element is disengaged, whereby said recording medium may be removed in the event of failure of said drive source.

公开(公告)号：CA2037704C

公开(公告)日：1994-11-01

申请号：CA2037704

申请日：1991-03-07

Applicant: IBM

Inventor： MATSUSHITA HIROSHI ,  NANKE KOICHIRO ,  TAKAHASHI KOUJI

IPC: G11B17/04 ,  G11B17/043 ,  G11B17/022

Abstract: An information reproduction apparatus in provided with supporting means for supporting a recording medium. A drive source, for moving the recording medium, is located between an initial insertion position and a reproduction position by driving said supporting means. Transmission means is included for transmitting the driving force of said drive source to said supporting means plus retraction means, operable to force a transmission element to retract from said transmission means. The transmission element is a part of said transmission means. Motion means operable to force the recording medium to move from the reproduction position to the initial insertion position under the condition that said transmission element is not engaged in said transmission means, so that in forcibly moving said supporting means, when the drive is out of operation, said supporting means are released from the drive force by means of said retraction means, thereby freeing the supporting means from the resistance force of the drive force. However, under normal operation, the said transmission element is returned to the said driving force transmitting path, thereby stopping inconvenience to the operation.

公开(公告)号：DE69110718D1

公开(公告)日：1995-08-03

申请号：DE69110718

申请日：1991-03-18

Applicant: IBM

Inventor： MATSUSHITA HIROSHI ,  NANKE KOICHIRO ,  TAKAHASHI KOUJI

IPC: G11B17/04 ,  G11B17/043

Abstract: An information reproduction apparatus is provided comprising: supporting means for supporting a recording medium; a drive source for moving the recording medium between an initial insertion position and a reproduction position by driving said supporting means; transmission means incorporating a transmission element for transmitting the driving force of said drive source to said supporting means; characterised by retraction means operable to disengage said transmission element from said transmission means; and motion means operable to drive the recording medium from the reproduction position to the initial insertion position when said transmission element is disengaged, whereby said recording medium may be removed in the event of failure of said drive source.

公开(公告)号：CA2037704A1

公开(公告)日：1991-09-28

申请号：CA2037704

申请日：1991-03-07

Applicant: IBM

Inventor： MATSUSHITA HIROSHI ,  NANKE KOICHIRO ,  TAKAHASHI KOUJI

IPC: G11B17/04 ,  G11B17/043 ,  G11B17/022

Abstract: An information reproduction apparatus is provided comprising: supporting means for supporting a recording medium; a drive source for moving the recording medium between an initial insertion position and a reproduction position by driving said supporting means; transmission means incorporating a transmission element for transmitting the driving force of said drive source to said supporting means; characterised by retraction means operable to disengage said transmission element from said transmission means; and motion means operable to drive the recording medium from the reproduction position to the initial insertion position when said transmission element is disengaged, whereby said recording medium may be removed in the event of failure of said drive source.

公开(公告)号：JPH04232654A

公开(公告)日：1992-08-20

申请号：JP19991591

申请日：1991-07-16

Applicant: IBM

Inventor： HENRII EDOWAADO ABIRESU ,  EDOUIN RARUFU CHIYAIRUDAAZU ,  KOKUBO TETSUYA ,  MATSUSHITA HIROSHI ,  DEBITSUDO POORU EMUSHII REINOR ,  MINAMIYA KOUICHIROU

IPC: G11B7/095 ,  G11B19/20 ,  G11B21/10 ,  G11B33/08 ,  G11B33/12

Abstract: PURPOSE: To prevent instability in a servo control system in an optical disk drive by shifting a feedback phase by 180 deg. and mechanically feedback controlling. CONSTITUTION: A rough actuator 16 provided with a carriage 15 for controlling tracking movement of a read/write head 12 is attached to the base 11, of the optical disk drive 10. The actuator 16 is provided with a voice coil 23, etc., and a precise actuator 14 controlling focusing of an objective lens 13 also, and the actuator 14 is feedback controlled mechanically through a circuit card 21. The feedback phase is shifted by 180 deg. by the opening of the base 11 and a bend member of a spindle attaching flange, and reduction in a phase margin is eliminated. Thus, the instability in the servo control system is prevented, and the optical disk drive capable of stably controlling a mechanical servo without harmful resonance occurrence, etc., is obtained.

公开(公告)号：JP2005131805A

公开(公告)日：2005-05-26

申请号：JP2003367217

申请日：2003-10-28

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： HONDA MASAHITO ,  MATSUSHITA HIROSHI ,  SUMITA FUTOSHI

IPC: B41J11/20 ,  B41J25/308 ,  B41J31/00 ,  B41J33/02

CPC classification number: B41J33/02 ,  B41J11/20

Abstract: PROBLEM TO BE SOLVED: To prevent print quality from degrading due to vibration when a gap roller touches the end part of a print object through a simple arrangement. SOLUTION: In a printer comprising a print head 11 for printing on a print object 12 being carried on a platen 13 in the subscanning direction by reciprocating in the main scanning direction A, B along the platen, a means for imparting an elastic force to the platen or the print head in the direction for bringing them closer to each other, and a gap roller 15 for forming a predetermined print gap by traveling on the print object while resisting against the elastic force as the print head reciprocates, an auxiliary member for forming a print gap having contact parts 23a and 23b, which assist formation of a predetermined print gap by touching the end part of the print object immediately before touching the gap roller during reciprocation thereby enlarging the gap between the platen and the print head, is arranged at the lower end part of the print head. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了防止当间隙辊通过简单的布置与打印对象的端部接触时由于振动而引起的打印质量降级。 解决方案：在包括打印头11的打印机中，打印头11用于通过沿主扫描方向A，B沿着压板往复运动而在副扫描方向上承载在台板13上的打印对象12上，用于赋予弹性 在打印头往复运动的同时抵抗弹力而在打印物体上行进形成预定的打印间隙的间隙辊15，一个辅助的打印头 用于形成具有接触部分23a和23b的打印间隙的构件，其通过在往复运动期间接触间隙辊之前触摸打印对象的端部来帮助形成预定的打印间隙，从而扩大压板和打印头之间的间隙， 布置在打印头的下端部。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JPH03276454A

公开(公告)日：1991-12-06

申请号：JP7579490

申请日：1990-03-27

Applicant: IBM

Inventor： MATSUSHITA HIROSHI ,  MINAMIYA KOUICHIROU ,  TAKAHASHI KOJI

IPC: G11B17/04 ,  G11B17/043

Abstract: PURPOSE: To effectively reproduce information without a large force for taking out a recording medium when a drive source is inoperative and also without bringing about a disturbance in an operation in the case of a normal driving. CONSTITUTION: When a driving force 300 becomes inoperative due to a breakdown of a power-supply unit, etc., in the state that a recording medium 200 is carried into a reproduction position, a clip or driver, etc., as an operation rod 280 is inserted into a through hole 270. Then, the tip of the operation rod 280 is abutted on a contact part 515 of a gear disengaging member 515, pressing down the contact part 515 and then passing by it before it is abutted on a contact part 615 of a turning arm 610, which is turned by a light force for a recording medium 200 to be taken out. Further, device does not bring about a disturbance in an operation in the case of a normal driving. Thus, information can effectively be reproduced.