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公开(公告)号：US5024543A
公开(公告)日：1991-06-18
申请号：US356822
申请日：1989-05-24
摘要： An impact dot print head for printing without impact noise when returning to the non-printed position includes a base. An arm is mounted for movement between a non-print position and a print position. A print wire is mounted on the arm. A first device selectively drives the arm towards the print position by bias or magnetic force. A second device returns the arm to the non-print position and maintains the arm at that position without causing the arm to impact any member of the print head when returning to the print position. The second device uses balanced magnetic attraction or repulsion and/or bias forces to hold the arm out of contact with other parts of the printer other than at its point of mounting when at the non-print position.
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公开(公告)号：US5039235A
公开(公告)日：1991-08-13
申请号：US423761
申请日：1989-10-17
申请人： Takashi Takeuchi , Akio Mitsuishi
发明人： Takashi Takeuchi , Akio Mitsuishi
IPC分类号： B41J2/275
CPC分类号： B41J2/275
摘要： A printer utilizes an impact dot print head achieving higher drive acceleration and resultant velocity for driving a print wire without notable increase in the moment of inertia through the provision of magnetic influencing means on adjacent or opposite sides of the print wire lever fulcrum or rotation center. The length of the print wire actuating lever between the rotation center and the print wire connection on one side of the lever is longer than the length of the lever between the rotation center and the point of magnetic influence on the other side of the lever. Thus, angular moment for driving a print wire actuating lever can be increased without notable increase of the moment of inertia by employing a magnetic influencing means on opposite sides of the rotation center of the print wire actuating lever. Therefore, an increase in the speed of printing can be achieved in the employment of the disclosed magnetic influencing means without any accompanying problems due to increased inertial mass of the print wire operating mechanism.
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公开(公告)号：US5083876A
公开(公告)日：1992-01-28
申请号：US403436
申请日：1989-09-06
IPC分类号： B41J2/28
CPC分类号： B41J2/28
摘要： A printing head for a wire dot printer includes a plurality of printing levers connected to a corresponding plurality of printing wires. A plurality of guide holes are operable for guiding the distal ends of the printing wires beyond a nose of the printing head. Each guide hole corresponds to one of the plurality of printing levers. As viewed from the nose of the printing head, each printing lever extends radially from its corresponding guide hole and the inner ends of the printing levers form a zig-zag pattern. A plurality of plate springs provides the resilient force to push the printing levers and thereby the printing wires toward the nose of the printing head. A spacer for supporting the plate springs equalizes the effective length of each plate spring.
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公开(公告)号：US4881832A
公开(公告)日：1989-11-21
申请号：US236391
申请日：1988-08-25
申请人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
发明人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
摘要： A print wire driving device for a wire dot printer includes a plate like member having slots therein. The slots are arranged opposite the cores of a magnetic core block. The cores are arranged in a circle and project from the core block. The slots extend radially from the center of the plate like member. A magnetic driving member is received in each slot so that it pivots therein when acted upon by the magnetic field of a respective magnetic core. A print wire is coupled to each magnetic driving member. Each print wire is guided by a wire guide having a wire nose which receives at its end a wire guide member from which the ends of the print wires extend to print.
摘要翻译： 一种用于丝印打印机的打印线驱动装置包括其中具有槽的板状构件。 槽与磁芯块的芯相对配置。 芯部设置成圆形并从芯块突出。 槽从板状构件的中心径向延伸。 磁性驱动构件被容纳在每个槽中，使得当磁性驱动构件在相应的磁芯的磁场作用时枢转。 印刷线耦合到每个磁性驱动构件。 每个打印线由具有电线头的导线器引导，导线端部在其端部接纳线引导构件，印刷线的端部从该线引导构件延伸以打印。
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公开(公告)号：US4196667A
公开(公告)日：1980-04-08
申请号：US889475
申请日：1978-03-23
CPC分类号： B41J9/133
摘要： A print hammer having an improved head portion for striking a selected moving print character member in a line printing device is provided. The printing device prints when the print hammer strikes a print character member at a predetermined print position forcing the character member against an ink ribbon, a print paper and a platen. The head portion is formed with an inclined surface facing the direction of approaching adjacent character members to drive an adjacent character member striking the side of the print hammer around the print hammer for avoiding jamming and damage to character members and print hammers. In a preferred embodiment the head portion is substantially "V" shaped with the apex of the V disposed in a direction opposite to the movement of the print character members.
摘要翻译： 提供了具有改进的头部用于打印行打印装置中的选定的移动打印字符构件的打印锤。 当打印锤在预定打印位置打印打印字符构件时打印设备打印，迫使字符构件抵靠墨带，打印纸和压板。 头部形成有面向相邻字符构件的方向的倾斜表面，以驱动围绕打印锤击打打印锤侧面的相邻字符构件，以避免字符构件和打印锤的卡住和损坏。 在优选实施例中，头部基本上为“V”形，其中V顶点设置在与打印字符构件的运动相反的方向上。
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公开(公告)号：US4915524A
公开(公告)日：1990-04-10
申请号：US235864
申请日：1988-08-24
申请人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
发明人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
摘要： A wire guide member for use in a wire type dot printer for guiding print wires and having a guide member with grooves. The wire guide member includes a first plate formed of synthetic resin, a second plate being formed of a wear resistant material and a third plate also formed of a synthetic resin. Through-holes in the plates are aligned to receive the print wires. Also disclosed is an assembly for supporting a member in a wire type dot printer.
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公开(公告)号：US5236266A
公开(公告)日：1993-08-17
申请号：US729301
申请日：1991-07-12
申请人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
发明人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
摘要： A print wire driving device for a wire dot printer includes a plate like member having slots therein. The slots are arranged opposite the cores of a magnetic core block. The cores are arranged in a circle and project from the core block. The slots extend radially from the center of the plate like member. A magnetic driving member is received in each slot so that it pivots therein when acted upon by the magnetic field of a respective magnetic core. A print wire is coupled to each magnetic driving member. Each print wire is guided by a wire guide having a wire nose which receives at its end a wire guide member from which the ends of the print wires extend to print. The wire guide includes structure for properly aligning two stacks of magnetic actuators.
摘要翻译： 一种用于丝印打印机的打印线驱动装置包括其中具有槽的板状构件。 槽与磁芯块的芯相对配置。 芯部设置成圆形并从芯块突出。 槽从板状构件的中心径向延伸。 磁性驱动构件被容纳在每个槽中，使得当磁性驱动构件在相应的磁芯的磁场作用时枢转。 印刷线耦合到每个磁性驱动构件。 每个打印线由具有电线头的导线器引导，导线端部在其端部接纳线引导构件，印刷线的端部从该线引导构件延伸以打印。 导线器包括用于正确对准两个磁性致动器堆叠的结构。
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公开(公告)号：US4767227A
公开(公告)日：1988-08-30
申请号：US823167
申请日：1986-01-27
申请人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
发明人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
摘要： A print wire driving device for a wire dot printer includes a plate like member having slots therein. The slots are arranged opposite the cores of a magnetic core block. The cores are arranged in a circle and project from the core block. The slots extend radially from the center of the plate like member. A magnetic driving member is received in each slot so that it pivots therein when acted upon by the magnetic field of a respective magnetic core. A print wire is coupled to each magnetic driving member. Each print wire is guided by a wire guide having a wire nose which receives at its end a wire guide member from which the ends of the print wires extend to print.
摘要翻译： 一种用于丝印打印机的打印线驱动装置包括其中具有槽的板状构件。 槽与磁芯块的芯相对配置。 芯部设置成圆形并从芯块突出。 槽从板状构件的中心径向延伸。 磁性驱动构件被容纳在每个槽中，使得当磁性驱动构件在相应的磁芯的磁场作用时枢转。 印刷线耦合到每个磁性驱动构件。 每个打印线由具有电线头的导线器引导，导线端部在其端部接纳线引导构件，印刷线的端部从该线引导构件延伸以打印。
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公开(公告)号：US4375338A
公开(公告)日：1983-03-01
申请号：US169069
申请日：1980-07-15
申请人： Akio Mitsuishi
发明人： Akio Mitsuishi
CPC分类号： B41J2/275
摘要： An improved wire dot print head assembly for a wire dot printer including a resilient securing spring for holding the assembly elements secure is provided. The print head assembly includes a plurality of print wires, each selectively driven through a print nose by a plurality of electromagnets disposed about the print wires. A pivotable operating member engaged to the input end of the wire is actuated by an electromagnet with the fulcrum end of the operating member secured by a holding member. The holding member, nose, electromagnet and operating member are compressively retained by the resilient securing spring. The holding member is formed with a projection extending through the fulcum portion of the operating member to minimize magnetic reluctance of the magnetic flux by minimizing an air gap between a plunger mounted on the operating member and a yoke plate. The print head constructed in accordance with the invention permits improved dimensional accuracy in a simplified construction.
摘要翻译： 提供了一种用于线点打印机的改进的线点打印头组件，其包括用于保持组装元件固定的弹性固定弹簧。 打印头组件包括多个打印线，每个打印线通过布置在打印线周围的多个电磁体选择性地驱动通过打印头。 接合到线的输入端的可枢转操作构件由电磁体驱动，其中操作构件的支点由固定构件固定。 保持构件，鼻子，电磁体和操作构件被弹性固定弹簧压缩保持。 保持构件形成有延伸穿过操作构件的支点部分的突起，以通过使安装在操作构件上的柱塞与轭板之间的气隙最小化来最小化磁通量的磁阻。 根据本发明构造的打印头允许以简化的结构改进尺寸精度。
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公开(公告)号：US5048985A
公开(公告)日：1991-09-17
申请号：US421050
申请日：1989-10-13
申请人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
发明人： Akio Mitsuishi , Yasuhiko Nakazawa , Takumi Sato
摘要： A wire dot printer using a plurality of print wires to print on a printing medium. The printer includes a print head unit, a guide member defining a wire nose mounted on one end of the print head unit, and a wire guide member mounted proximate one end of the guide member and including a plurality of openings for guiding the print wires. A supporting member is mounted on the guide member on the one end thereof and has a first surface for coupling the supporting member to a carriage. The supporting member has an end surface having an opening therein corresponding in shape to that of the end of the guide member supporting the wire guide member. The wire guide member is positioned and supported in the opening in the supporting member. The guide member also includes a plurality of spaced wire guide plates which include a plurality of holes aligned therein through which the print wires extend for guiding the print wires.
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