公开(公告)号：US4602301A

公开(公告)日：1986-07-22

申请号：US570357

申请日：1984-01-13

申请人： Shunji Saito ,  Tetsuro Ichitani

发明人： Shunji Saito ,  Tetsuro Ichitani

IPC分类号： G11B5/09 ,  G11B5/016 ,  G11B15/12 ,  G11B19/02 ,  G11B5/02 ,  G11B21/08

CPC分类号： G11B19/02 ,  G11B15/12 ,  G11B5/016

摘要： A magnetic disk drive apparatus writes data in a magnetic disk by use of first and second magnetic heads. The track position on the magnetic disk where the first or second magnetic head exists is detected, and a delay time corresponding to the detected track position is set into a timer circuit. In the write-in mode, a CPU starts the operation of a read/write head section of the selected one of the first and, second magnetic heads and thereafter, when a delay time which is set into the timer circuit has passed, the CPU starts the operation of an erase head section of the selected one of the first and second magnetic heads.

摘要翻译： 磁盘驱动装置通过使用第一和第二磁头将数据写入磁盘。 检测存在第一或第二磁头的磁盘上的轨道位置，并将与检测到的轨道位置相对应的延迟时间设置为定时器电路。 在写入模式中，CPU开始对第一和第二磁头中所选择的一个的读/写头部的操作，之后当设置到定时器电路的延迟时间过去时，CPU 开始第一和第二磁头中所选择的一个的擦除磁头部分的操作。

公开(公告)号：US06784907B2

公开(公告)日：2004-08-31

申请号：US10200180

申请日：2002-07-23

申请人： Yasunobu Terao ,  Tetsuro Ichitani ,  Masayuki Iinuma ,  Takahiro Kawaguchi ,  Keishi Tsuchiya ,  Takeshi Okui

发明人： Yasunobu Terao ,  Tetsuro Ichitani ,  Masayuki Iinuma ,  Takahiro Kawaguchi ,  Keishi Tsuchiya ,  Takeshi Okui

IPC分类号： B41J232

CPC分类号： B41J2/22

摘要： The present invention is a wire dot printer head wherein a spacer is inserted between a yoke block and a head holder. The yoke block has yokes opposed to plural armatures, coils wound respectively round plural cores whose one ends are opposed to the armatures, and fulcrum portions which hold the armatures so that the armatures can rise and fall with respect to end faces of the cores. The spacer is adapted to move under the action of an external force, thereby changing the spacing between the yoke block and the head holder.

摘要翻译： 本发明是一种线点打印机头，其中间隔件插入在轭块和头架之间。 磁轭块具有与多个电枢相对的磁轭，分别缠绕在其一端与电枢相对的多个磁芯上的线圈，以及支撑电枢的支点部分，使电枢相对于磁芯的端面上升和下降。 间隔件适于在外力的作用下移动，从而改变轭块与头架之间的间隔。

公开(公告)号：US4951158A

公开(公告)日：1990-08-21

申请号：US384262

申请日：1989-07-21

申请人： Tetsuro Ichitani

发明人： Tetsuro Ichitani

IPC分类号： H04N1/04 ,  G06T1/00 ,  H04N1/053 ,  H04N1/10 ,  H04N1/193 ,  H04N1/393

CPC分类号： H04N1/053 ,  H04N1/393 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04703

摘要： A scanner unit optically scans an original in a first direction to obtain an optical image. A mark is provided with a predetermined distance within a range in a second direction perpendicular to the first direction. The range is a range which can be scanned by the scanner unit. A line sensor is arranged in the second direction to read the optical image line by line in cooperation with the scanner unit. A converter converts a read output from the line sensor into digital data. An instruction section instructs to read the mark to the scanner unit and the line sensor prior to reading of the original. A distance calculating section calculates distance data corresponding to the predetermined distance of the mark in accordance with the digital data from the converter when the scanner unit and the line sensor cooperate to read the mark in accordance with an instruction from the instruction switch. A correction data calculating section calculates correction data corresponding to a difference between reference data and the distance data calculated by the distance calculating section. The correction data represents the number of bits of data extraction or addition corresponding to the difference. A read magnification correcting section executes bit extraction from or addition to the digital data from the converter in accordance with the number of bits represented by the correction data output from the correction data calculating section. A read magnification defined by the scanner unit and the line sensor is corrected to a defined read magnification corresponding to the reference data.

摘要翻译： 扫描仪单元沿第一方向对原稿进行光学扫描以获得光学图像。 在与第一方向垂直的第二方向上的范围内设有一个预定距离的标记。 范围是可以由扫描仪单元扫描的范围。 线传感器沿第二方向布置，以与扫描仪单元协同地逐行读取光学图像。 A转换器将来自线路传感器的读取输出转换为数字数据。 在读取原稿之前，指令部分指示读取扫描仪单元和线传感器的标记。 当扫描仪单元和线传感器根据来自指令开关的指令合作读取标记时，距离计算部分根据来自转换器的数字数据，计算与标记的预定距离对应的距离数据。 校正数据计算部分计算与参考数据和由距离计算部分计算的距离数据之间的差相对应的校正数据。 校正数据表示对应于该差的数据提取或加法的比特数。 读取倍率校正部分根据从校正数据计算部分输出的校正数据表示的比特数来执行从转换器的数字数据中的比特提取或加法运算。 由扫描仪单元和线传感器定义的读取倍率被校正到对应于参考数据的定义的读取放大率。

公开(公告)号：US06729782B2

公开(公告)日：2004-05-04

申请号：US10229014

申请日：2002-08-28

申请人： Tetsuro Ichitani ,  Yasunobu Terao ,  Takahiro Kawaguchi ,  Keishi Tsuchiya ,  Takeshi Okui

发明人： Tetsuro Ichitani ,  Yasunobu Terao ,  Takahiro Kawaguchi ,  Keishi Tsuchiya ,  Takeshi Okui

IPC分类号： B41J2275

CPC分类号： B41J2/22

摘要： In the wire dot printer head of the present invention, there is provided an armature stopper against which an armature having pivoted from a printing position to a stand-by position comes into abutment, the armature stopper being formed by bonding an elastic plate and a hard plate with each other into an integral combination and thereafter punching the integral combination from the hard plate side. By this punching work the armature stopper is warped so that the hard plate side is convex in shape. With this warp, when the armature having pivoted to the stand-by position comes into abutment against the armature stopper, the armature stopper deflects in a direction to eliminate the warp. With this deflecting motion, an impact force induced upon mutual abutment of the armature and the armature stopper is diminished and deformation or chipping of the hard plate are suppressed, further, the durability of the armature stopper is improved and the printing accuracy is kept high over a long period.

摘要翻译： 在本发明的丝点打印机头中，设置有从打印位置转动到待机位置的电枢抵靠的电枢止动器，电枢止动器通过将弹性板和硬接合 彼此成为一体的组合，然后从硬板侧冲压整体组合。 通过这种冲压工作，电枢止动器变形，使得硬板侧面呈凸形。 通过该翘曲，当已经枢转到待机位置的电枢抵靠电枢止挡件时，电枢止动器沿着消除翘曲的方向偏转。 通过这种偏转运动，电枢和电枢止动器的相互邻接引起的冲击力减弱，硬板的变形或破碎被抑制，电枢止动器的耐久性提高，印刷精度保持高 很长一段时间

公开(公告)号：US06543944B2

公开(公告)日：2003-04-08

申请号：US09905866

申请日：2001-07-17

申请人： Masami Horii ,  Tetsuro Ichitani ,  Yasunobu Terao

发明人： Masami Horii ,  Tetsuro Ichitani ,  Yasunobu Terao

IPC分类号： B41J222

CPC分类号： B41J2/255

摘要： A wire dot printer head including a yoke, cores arranged in an annular form on the yoke, coils combined with the cores so as to fit the cores, armatures supported so as to be raised or lowered in respect to the cores, wires supported at the free ends of the armatures in such a way that they may be driven and displaced, and an extremity end guide having guide holes for independently and slidably supporting the extremity ends of the wires to arrange them. When the moving direction of the wire dot printer head is as a main scanning direction, the guide holes of the extremity end guide are arranged along an arc curved only in direction of the sub-scanning direction so as to cause the arrangement positions in the main scanning direction to be made different.

摘要翻译： 一种线点打印机头，包括一个磁轭，在磁轭上以环形形式布置的磁芯，与磁芯组合的线圈，以便与磁芯相配合，电枢被支撑成相对于磁芯升高或降低， 电枢的自由端以它们可以被驱动和移位的方式，以及具有引导孔的末端引导件，用于独立地且可滑动地支撑电线的末端以将它们排列。 当丝点打印机头的移动方向作为主扫描方向时，末端引导件的引导孔沿着仅在副扫描方向的方向上弯曲的圆弧布置，以使主体中的布置位置 扫描方向不同。

公开(公告)号：US06698956B1

公开(公告)日：2004-03-02

申请号：US10228940

申请日：2002-08-28

申请人： Yasunobu Terao ,  Takahiro Kawaguchi ,  Tetsuro Ichitani ,  Keishi Tsuchiya ,  Takeshi Okui

发明人： Yasunobu Terao ,  Takahiro Kawaguchi ,  Tetsuro Ichitani ,  Keishi Tsuchiya ,  Takeshi Okui

IPC分类号： B41J2275

CPC分类号： B41J2/22

摘要： In the wire dot printer head of the present invention, an armature adapted to move pivotally between a printing position and a stand-by position is provided with a pivot shaft serving as a fulcrum, and the pivot shaft is pinched and supported by a pair of support members from both sides in the pivoting direction of the pivot shaft. In at least one support member is formed a concave support groove into which an outer periphery surface of the pivot shaft is inserted in a state of surface contact with the groove. When the armature moves pivotally in a printing operation, the surface of contact increases because the pivot shaft and the pivot groove are in surface contact with each other, thus preventing the occurrence of a local concentration of a strong force on the contact portion between the pivot shaft and the support groove. Besides, such a motion of the pivot shaft as being rubbed against the other support member is restricted by the aforesaid surface contact, whereby the wear between the pivot shaft and the other support member is also diminished. Consequently, wobbling of the pivot shaft during printing is prevented and variations in a wire tip position are also prevented, thus ensuring a high print quality.

摘要翻译： 在本发明的丝点打印机头中，适于在打印位置和待机位置之间枢转运动的电枢设置有用作支点的枢轴，并且枢转轴被一对 在枢轴的枢转方向上从两侧支撑构件。 在至少一个支撑构件形成有凹形支撑槽，枢轴的外周表面以与槽表面接触的状态插入该凹槽中。 当衔铁在打印操作中枢转地移动时，由于枢转轴和枢转槽彼此表面接触，所以接触表面增加，从而防止在枢轴之间的接触部分局部集中强力 轴和支撑槽。 此外，枢转轴的摩擦抵靠另一个支撑构件的运动受到上述表面接触的限制，由此枢轴和另一个支撑构件之间的磨损也减小。 因此，防止了打印期间枢轴的摆动，并且也防止了引线位置的变化，从而确保了高的打印质量。

公开(公告)号：US06682233B2

公开(公告)日：2004-01-27

申请号：US10098555

申请日：2002-03-18

申请人： Yasunobu Terao ,  Keishi Tsuchiya ,  Takahiro Kawaguchi ,  Tetsuro Ichitani

发明人： Yasunobu Terao ,  Keishi Tsuchiya ,  Takahiro Kawaguchi ,  Tetsuro Ichitani

IPC分类号： B41J227

CPC分类号： B41J2/22

摘要： In a wire dot printer head of the present invention, an armature is formed by coupling a magnetic circuit formation member having a supported piece with one end inserted into a cavity formed on a surface of a yoke to an arm coupled to a wire. The supported piece of the armature is rotatably supported by a support point, thereby a side surface of the cavity and a side surface of the supported piece, and a bottom surface of the cavity and an end surface of the supported piece can be set in the proximity. Accordingly, magnetic resistance between the magnetic circuit formation member and the yoke can be reduced.

摘要翻译： 在本发明的丝点打印机头中，通过将具有支撑件的磁路形成构件与插入到形成在轭的表面上的空腔中的一端连接到连接到电线的臂而形成电枢。 电枢的支撑片由支撑点可旋转地支撑，从而空腔的侧表面和支撑件的侧表面以及空腔的底表面和支撑件的端表面可以设置在 接近。 因此，可以减小磁路形成部件和磁轭之间的磁阻。

公开(公告)号：US4652950A

公开(公告)日：1987-03-24

申请号：US537494

申请日：1983-09-30

申请人： Tetsuro Ichitani ,  Shunzi Saito

发明人： Tetsuro Ichitani ,  Shunzi Saito

IPC分类号： G11B19/06 ,  G11B19/12 ,  G11B21/12 ,  G11B21/02 ,  G11B5/54

CPC分类号： G11B19/06 ,  G11B19/12 ,  G11B21/12

摘要： A floppy disc driving apparatus includes a floppy disc driver, a head-load driver, an index sensor for generating an index pulse for each rotation of a floppy disc and a signal generator for supplying a drive signal to the head-load driver. It further includes a timer circuit, a head-load flag area and a control circuit for setting the timer circuit to a preset time period longer than the time required for one rotation of the floppy disc in response to an index pulse from the index sensor and setting a head drive inhibition flag in the head-load flag area in response to a signal generated form the timer circuit upon completion of the counting of the preset time period by the timer circuit.

摘要翻译： 软盘驱动装置包括软盘驱动器，头负载驱动器，用于产生用于软盘的每次旋转的索引脉冲的索引传感器和用于向头负载驱动器提供驱动信号的信号发生器。 它还包括定时器电路，头负载标志区域和控制电路，用于响应于来自索引传感器的索引脉冲将定时器电路设置为比软盘的一次旋转所需的时间长的预设时间段;以及 在由定时器电路完成对预设时间段的计数完成时，响应于从定时器电路产生的信号，在头装载标志区域中设置磁头驱动禁止标志。