公开(公告)号：US4844634A

公开(公告)日：1989-07-04

申请号：US194261

申请日：1988-05-16

申请人： Juichi Tatsumi

发明人： Juichi Tatsumi

IPC分类号： B41J2/24 ,  B41J2/28 ,  B41J2/295

CPC分类号： B41J2/295 ,  B41J2/24 ,  B41J2/28

摘要： A spring-charge type printing head has an elongatable support including a piezoelectric element provided between an attracting permanent magnet and a hammer-fixing portion. Accordingly, the printing head can be operated at a high speed and require less power than a conventional device.

摘要翻译： 弹簧充电型打印头具有可伸长的支撑，其包括设置在吸引永磁体和锤固定部之间的压电元件。 因此，打印头可以高速运转，并且比常规装置需要更少的功率。

公开(公告)号：US4393771A

公开(公告)日：1983-07-19

申请号：US324637

申请日：1981-11-24

申请人： Juichi Tatsumi

发明人： Juichi Tatsumi

IPC分类号： B41J2/28 ,  B41J9/02

CPC分类号： B41J2/28

摘要： A permanent magnet type printing head for an impact dot printer wherein a plate spring hammer has a hammer tip provided on one side thereof, and an attracting magnetic pole provided with a releasing electromagnetic coil arranged on the side opposite said hammer, wherein an armature is provided on the upper surface of the plate spring hammer instead of providing same on the same side of a magnetic pole, and wherein an arm of a yoke constituting a main magnetic path is provided on the plate spring hammer, and the magnetic pole is positioned between the hammer tip and the armature.

摘要翻译： 一种用于冲击式打印机的永久磁铁式打印头，其中板簧锤具有设置在其一侧的锤头，以及设置有与所述锤相对的一侧上的释放电磁线圈的吸引磁极，其中设置有电枢 而不是在磁极的同一侧设置板弹簧锤的上表面，并且其中构成主磁路的轭的臂设置在板簧锤上，并且磁极位于 锤尖和电枢。

公开(公告)号：US5401109A

公开(公告)日：1995-03-28

申请号：US201025

申请日：1994-02-24

申请人： Juichi Tatsumi ,  Manabu Muto ,  Kenji Mori ,  Hajime Hayase

发明人： Juichi Tatsumi ,  Manabu Muto ,  Kenji Mori ,  Hajime Hayase

IPC分类号： B41J2/245 ,  B41J19/04 ,  B41J19/18 ,  B41J25/00 ,  B41J25/304

CPC分类号： B41J25/006

摘要： A mounting bed integral with a hammer bank is disposed parallel to a counter balancer composed of a counter balancer constituting member and a yoke. The mounting bed and the yoke are provided with solenoid coils opposed to a permanent magnet provided on the frame, and a pair of bearings are arranged between the mounting bed and the counter balancer constituting member. A position sensor for the mounting bed and the counter balancer is provided. A controller is provided to control a current and direction of the solenoid coil by a detection signal from the position sensor. The mounting bed integral with the hammer bank and the counter balancer are shuttle-operated in opposite directions by the controller.

摘要翻译： 与锤组一体的安装台平行于由平衡器构成构件和轭构成的平衡器平行设置。 安装台和轭设置有与设置在框架上的永磁体相对的电磁线圈，并且一对轴承布置在安装台和平衡器构成构件之间。 提供了用于安装台和平衡器的位置传感器。 提供控制器以通过来自位置传感器的检测信号来控制螺线管线圈的电流和方向。 与锤组和平衡器一体的安装床由控制器沿相反的方向往复运动。