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1. 发明授权

US5726521A Electromechanical actuator used in wire-dot printing head 失效
标题翻译：用于丝印打印头的机电执行器
公开(公告)号：US5726521A
公开(公告)日：1998-03-10
申请号：US766055
申请日：1996-12-16
申请人： Shinji Kon , Syuichi Yamaki , Mitsuhiro Yoshida , Daisuke Kimura , Shigeo Miura , Yuji Oshime , Mitsuhiro Mori
发明人： Shinji Kon , Syuichi Yamaki , Mitsuhiro Yoshida , Daisuke Kimura , Shigeo Miura , Yuji Oshime , Mitsuhiro Mori
IPC分类号： B41J2/235 , B41J2/28 , B41J2/295 , B41J2/30 , H01L41/083 , H01L41/09 , H01L41/08
CPC分类号： B41J2/295 , B41J2/28 , H01L41/083 , H02N2/043
摘要： An electromechanical actuator has a stack composed of electromechanical elements, and an inactive element intervening in the stack to divide it into two sections. In a wire-dot printing head using the actuator, the stack sections are successively energized to increase a forward stroke of a printing wire for a high speed printing. In another aspect, an electromechanical actuator used in a wire-dot printer has a spring for regulating and braking a rearward stroke of a printing wire or a stopper such that the wire can be prevented from being moved back beyond an initial position. Alternatively, a stopper is incorporated to forcibly stop the wire at the initial position during the rearward stroke thereof. In yet another aspect, an electromechanical actuator has a stack composed of electromechanical elements, and the stack is supported by a block through a leaf spring securely joined therebetween to prevent generation of large stress in the stack.
摘要翻译：机电致动器具有由机电元件组成的堆叠，以及插入在堆叠中以将其分成两部分的非活性元件。在使用致动器的丝印打印头中，堆叠部分被连续通电，以增加用于高速打印的打印线的向前行程。另一方面，在点阵式打印机中使用的机电致动器具有用于调节和制动打印线或止动器的向后行程的弹簧，使得可以防止线被移回超过初始位置。或者，并入止动器，以在其向后冲程期间的初始位置强制地停止线。在另一方面，机电致动器具有由机电元件组成的堆叠，并且所述堆叠件通过其间牢固地连接的片簧被块支撑，以防止在堆叠中产生大的应力。

2. 发明授权

US5447381A Piezoelectric printing head 失效
标题翻译：压电式打印头
公开(公告)号：US5447381A
公开(公告)日：1995-09-05
申请号：US373452
申请日：1995-01-17
申请人： Daisuke Kimura , Yuji Oshime , Syuichi Yamaki
发明人： Daisuke Kimura , Yuji Oshime , Syuichi Yamaki
IPC分类号： B41J2/295
CPC分类号： B41J2/295
摘要： A piezoelectric printing head includes an annular base frame and a plurality of piezoelectric actuator assemblies mounted on the base frame. Each actuator assembly includes a piezoelectric element having one end rigidly secured to the base frame and another free end, an armature having a base end and a tip end to which a printing wire is rigidly connected, and a magnifying mechanism. When the piezoelectric element is electrically energized, a displacement of the piezoelectric element is magnified and then transmitted to the printing wire. Between the base frame and the base end of the armature there is provided a vibration damping buffer member.
摘要翻译：一种压电印刷头，包括一个环形底座和多个安装在基架上的压电致动器组件。每个致动器组件包括压电元件，其一端刚性地固定到基座框架和另一自由端，电枢具有基端和刚性连接印刷线的顶端和放大机构。当压电元件被通电时，压电元件的位移被放大然后传输到印刷线。在基座和衔铁的基端之间设置有减振缓冲构件。

3. 发明授权

US5184901A Displacement magnifying mechanism for a print element 失效
标题翻译：用于打印元件的位移放大机制
公开(公告)号：US5184901A
公开(公告)日：1993-02-09
申请号：US550545
申请日：1990-07-10
申请人： Shinzo Tanaka , Syuichi Yamaki
发明人： Shinzo Tanaka , Syuichi Yamaki
IPC分类号： B41J2/295
CPC分类号： B41J2/295
摘要： A displacement magnifying mechanism includes a base member and an electro actuator having a free ene and a base end connected to the base member, and having an actuator axis defined as passing through the free end and the base ene. The electro actuator has a rest state and an actuated state of extending and contracting along the actuator axis. The mechanism further includes an arm having first and second ends. A first resilient member has a first end connected to the free end of the electro actuator, and a second end connected to the second end of the arm. A second resilient member has a first end connected to the base member, and has a second end connected to the second end of the arm. The second resilient member is substantially parallel and substantially overlaps the first resilient member, and a distance between the first resilient member and second resilient member is less than a width of the electro actuator at a direction perpendicular to the actuator axis. The above mechanism allows the interval between the first and second resilient members to be narrowed without increasing the width, thus also improving the mounting efficiency and displacement magnifying efficiency.

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