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1. 发明授权

US4795284A Printing device with carriage and carrier therefor each integrally press-formed from a respective metal sheet 失效
标题翻译：具有托架和托架的印刷装置每个由相应的金属板整体地压制形成
公开(公告)号：US4795284A
公开(公告)日：1989-01-03
申请号：US925155
申请日：1986-10-31
申请人： Makoto Yumoto , Shoji Yanagida , Tomoyuki Moriya , Mamoru Takezawa , Shingo Kato , Osamu Kuramochi , Shunichi Ogawa , Takashi Kimura , Takeshi Motohashi , Hideto Miyazaki , Eiji Hashimoto
发明人： Makoto Yumoto , Shoji Yanagida , Tomoyuki Moriya , Mamoru Takezawa , Shingo Kato , Osamu Kuramochi , Shunichi Ogawa , Takashi Kimura , Takeshi Motohashi , Hideto Miyazaki , Eiji Hashimoto
IPC分类号： B41J19/20 , B41J19/78 , B41J29/02 , B41J25/30
CPC分类号： B41J19/78 , B41J19/20 , B41J29/02
摘要： A printing device such as a printer of the type using a type wheel in which a carriage is loaded with a printing mechanism and movable along a carrier to allow the printing mechanism to print out data on a paper, which is wrapped around a platen. The carrier and/or the carriage is produced by press-forming a single sheet metal to cut down the production cost and the number of structural elements of the printer.
摘要翻译：一种打印装置，例如使用型轮的类型的打印机，其中滑架装载有打印机构并且可沿着载体移动，以允许打印机构在纸张上打印数据，该数据被卷绕在台板上。通过冲压成形单个金属板来制造托架和/或托架，以降低打印机的生产成本和结构元件的数量。

2. 发明授权

US4556926A Electromagnet driving circuit 失效
标题翻译：电磁驱动电路
公开(公告)号：US4556926A
公开(公告)日：1985-12-03
申请号：US536205
申请日：1983-09-27
申请人： Shoji Yanagida
发明人： Shoji Yanagida
IPC分类号： H01H47/32
CPC分类号： H01H47/325
摘要： An electromagnet driving circuit particularly suited for use in impact printers as a means for driving to move a printing hammer includes a current control circuit for controlling a driving current to be applied to an electromagnet. In one aspect of the invention, a feed back circuit is provided between a voltage source and the current control circuit so as to compensate for fluctuations at the voltage source. In another aspect of the invention, the current control circuit is structured to use a temperature-dependent reference voltage in determining the level of the driving current thereby allowing to carry out a temperature-compensated operation.
摘要翻译：特别适用于冲击式打印机的电磁驱动电路作为用于驱动打印锤的驱动装置，包括用于控制施加到电磁体的驱动电流的电流控制电路。在本发明的一个方面，在电压源和电流控制电路之间提供反馈电路，以补偿电压源的波动。在本发明的另一方面，电流控制电路被构造成在确定驱动电流的电平时使用温度依赖的参考电压从而允许执行温度补偿的操作。

3. 发明授权

US4525658A Servomotor drive system 失效
标题翻译：伺服电机驱动系统
公开(公告)号：US4525658A
公开(公告)日：1985-06-25
申请号：US620945
申请日：1984-06-15
申请人： Shoji Yanagida
发明人： Shoji Yanagida
IPC分类号： H02P7/288 , H02P7/285 , H02P5/00
CPC分类号： H02P7/2855 , Y10S388/908 , Y10S388/91 , Y10S388/916
摘要： Herein disclosed is a drive system for a servomotor for use with the carriage of a serial printer, comprising a source of a variable command signal representative of the speed at which the servomotor is to operate, detecting means for detecting the output speed of the servomotor and producing a signal representative of the detected servomotor output speed, and first and second voltage sources respectively operative to supply predetermined voltages, the voltage from the first voltage source being higher than the voltage from the second voltage source. The drive system further comprises switching means responsive to the detected speed signal and operative to select the first voltage source when the detected speed signal is increased in voltage to a first threshold level and select the second voltage source when the detected speed signal is decreased in voltage to a second threshold level lower than the first threshold level, and drive means responsive to the command signal and operative to provide a path of current from the voltage source selected by the switching means to the servomotor.
摘要翻译：这里公开了一种用于与串行打印机的滑架一起使用的伺服电动机的驱动系统，包括代表伺服电机要运行的速度的可变命令信号的源，用于检测伺服电动机的输出速度的检测装置，产生表示检测到的伺服电动机输出速度的信号，以及分别用于提供预定电压的第一和第二电压源，来自第一电压源的电压高于来自第二电压源的电压。驱动系统还包括响应于检测到的速度信号的开关装置，并且当检测到的速度信号在电压中增加到第一阈值电平时可操作以选择第一电压源，并且当检测到的速度信号在电压下降时选择第二电压源至低于第一阈值电平的第二阈值电平，驱动装置响应命令信号并且可操作地提供从切换装置选择的电压源到伺服电动机的电流路径。

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