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公开(公告)号：US5310271A
公开(公告)日：1994-05-10
申请号：US866857
申请日：1992-04-10
摘要： A print head has a solenoid driving means which employs a filler mixed with a lubricating oil to fix an exciting coil to the core. The filler prevents the layer winding from being shorted due to corrosion of the exciting coil and prevents mechanical abrasion of the armature by supplying lubricating oil during extended operation.
摘要翻译： 打印头具有螺线管驱动装置，其使用与润滑油混合的填料将励磁线圈固定到芯上。 该填料防止了层绕组由于励磁线圈的腐蚀而短路，并且在延长的操作期间通过供给润滑油来防止电枢的机械磨损。
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公开(公告)号：US5188467A
公开(公告)日：1993-02-23
申请号：US713211
申请日：1991-06-11
申请人： Tetsuya Yamamoto , Yukio Endoh , Akio Segawa , Kenji Matsumoto , Takeo Komiyama
发明人： Tetsuya Yamamoto , Yukio Endoh , Akio Segawa , Kenji Matsumoto , Takeo Komiyama
IPC分类号： B41J2/28
CPC分类号： B41J2/28
摘要： A print head is provided with armatures, each having a stylus section and a plunger in an opposite position, the armatures each having the middle section that serves as a fulcrum for rotation. A plurality of first flat springs act on the armatures to that the armatures are biased in direction bias the armatures in a direction returning the armatures against the bias forces by the first flat springs.
摘要翻译： 打印头设置有电枢，每个电枢具有触针部分和处于相反位置的柱塞，每个电枢具有用作旋转支点的中间部分。 多个第一平板弹簧作用在电枢上，使得电枢沿着方向偏置电枢，使电枢沿着使电枢抵抗第一平板弹簧的偏压力使电枢返回。
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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：US4921364A
公开(公告)日：1990-05-01
申请号：US240431
申请日：1988-09-01
申请人： Makoto Yasunaga
发明人： Makoto Yasunaga
IPC分类号： B41J2/28
CPC分类号： B41J2/28
摘要： A printing head for a dot matrix printer is disclosed which facilitates assembly and disassembly and improves printing quality.The printing head has a plurality of hammers carrying respective printing wires, a plurality of coils each of which corresponds to each of the hammers, and a permanent magnet for retaining the hammers at the standing positions thereof, so that the magnetic flux of the permanent magnet is cancelled by exciting the coils so as to release the hammers, thereby driving the printing wires by virtue of the elasticity of the hammers. The printing head includes an annular base which is provided with, at the outer portion thereof, a hammer mounting portion for securing a plurality of hammer base portions, at the inner portion thereof, a plurality of implanted columnar cores around which respective coils are wound, and a short-circuiting portion which constitutes the closed magnetic circuits of the respective coils in cooperation with respective hammers. The permanent magnet is attached to the outside of the short-circuiting portion and the hammer mounting portions at the outer periphery of the base. The printing head is sub-assembled before the attachment of the permanent magnet.
摘要翻译： 公开了一种用于点阵式打印机的打印头，其便于组装和拆卸，并且提高了打印质量。 打印头具有承载相应打印线的多个锤，每个锤对应于每个锤的多个线圈和用于将锤保持在其竖立位置处的永磁体，使得永磁体的磁通量 通过激励线圈以释放锤来取消，从而借助于锤的弹性来驱动印刷线。 打印头包括环形基座，其外侧设有用于固定多个锤基部的锤安装部分，其内部包括多个注入的柱状铁芯，绕其周围卷绕有多个线圈， 以及与各个锤子配合构成各个线圈的闭合磁路的短路部分。 永久磁铁附着在基座的外周部的短路部的外侧和锤安装部。 在安装永磁体之前，打印头被分组装。
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公开(公告)号：US4802776A
公开(公告)日：1989-02-07
申请号：US91756
申请日：1987-09-01
申请人： Akiyasu Miyazawa , Mineo Harada , Eiji Tajima , Takao Abe
发明人： Akiyasu Miyazawa , Mineo Harada , Eiji Tajima , Takao Abe
CPC分类号： B41J2/28
摘要： A print head having magnetic members attracted by a permanent magnet while resiliently deflecting resilient members connected to one ends thereof associated with corresponding solenoids adapted to selectively release the associated magnetic members by cancelling the magnetic attracting force of the permanent magnet, so that the magentic member is actuated by the energy stored in the resilient members to drive printing elements into a printing position. To reduce the moment of inertia of the magnetic member, the magnetic pole surface of the permanent magnet or a yoke mounted on the permanent magnet is contacted with one end of the magnetic member to form a fulcrum for the rotation of the magnetic member. The magnetic pole surface of the permanent magnet or yoke on the permanent magnet and at least the fulcrum portion of the magnetic member are provided with hardened wear-resistant layers formed, for example, by plating with nickel, thereby achieving a higher resistance to wear. The wear of the magnetic pole surface of the fulcrum and of the magnetic member are reduced thereby avoiding non-uniformity of the moment of force in the magnetic members, as well as the resilient force in the resilient members, thereby ensuring a high uniformity of the impacting force applied to all printing elements.
摘要翻译： 一种打印头，其具有由永磁体吸引的磁性构件，同时弹性地偏转连接到其一端的弹性构件，该弹性构件与相应的螺线管相关联，该对应螺线管适于通过消除永久磁铁的磁吸引力来选择性地释放相关的磁性构件，使得该磁性构件 由存储在弹性构件中的能量驱动，以将打印元件驱动到打印位置。 为了减小磁性部件的惯性矩，安装在永磁体上的永久磁铁或磁轭的磁极表面与磁性部件的一端接触，形成磁性部件旋转的支点。 永磁体上的永磁体或磁轭的磁极表面和磁性部件的至少支点部分设置有例如通过镀镍形成的硬化的耐磨层，从而实现更高的耐磨性。 减小了支点和磁性构件的磁极表面的磨损，从而避免了磁性构件中的力矩的不均匀以及弹性构件中的弹性力，从而确保了 施加于所有印刷元件的冲击力。
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公开(公告)号：US4798488A
公开(公告)日：1989-01-17
申请号：US48999
申请日：1987-05-07
申请人： Koji Uozumi
发明人： Koji Uozumi
CPC分类号： B41J2/28
摘要： A dot matrix print head in which the mass of the armature is reduced by providing a groove in the armature in the portion where the magnetic flux density is relatively low. The armature may be advantageously attached to a sheet spring by laser welding applied from the bottom surface of the groove without creating craters in the external face of the sheet spring. Reduction in the mass of the armature allows a substantial increase in the print speed of the print head. Use of laser welding reduces the manufacturing cost of the print head and the absence of any craters in the external face of the sheet spring is favorable for the performance of the magnetic circuit of the print head.
摘要翻译： 一种点阵打印头，其中通过在磁通密度相对低的部分中在电枢中设置凹槽来减小电枢的质量。 电枢可以有利地通过从凹槽的底表面施加的激光焊接而附接到片簧，而在板弹簧的外表面中不产生凹坑。 减少电枢的质量允许打印头的打印速度显着增加。 使用激光焊接降低了打印头的制造成本，并且在板簧的外表面中没有任何凹坑有利于打印头的磁路的性能。
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公开(公告)号：US4735517A
公开(公告)日：1988-04-05
申请号：US794213
申请日：1985-10-31
CPC分类号： H01F7/1883 , B41J2/28
摘要： An impact printer has a flux regulator for each of the coils in its printhead. Each regulator provides a reference voltage indicative of the desired flux in the associated coil. A circuit is provided for measuring the flux in the coil and for providing a voltage representative thereof. The measured flux representation is compared with the reference flux representation and any difference is applied to a power circuit which then provides more or less power to the associated coil.
摘要翻译： 撞击式打印机具有用于其打印头中每个线圈的通量调节器。 每个调节器提供指示相关线圈中所需通量的参考电压。 提供用于测量线圈中的通量并提供代表它的电压的电路。 将测量的通量表示与参考通量表示进行比较，并且将任何差异应用于电力电路，其然后向相关联的线圈提供更多或更少的功率。
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公开(公告)号：US4695174A
公开(公告)日：1987-09-22
申请号：US822874
申请日：1986-01-27
申请人： Bernd Gugel , Harald Niebel , Hubert Ott
发明人： Bernd Gugel , Harald Niebel , Hubert Ott
CPC分类号： B41J2/28
摘要： A matrix print head includes a magnetic yoke plate, magnetic pole defining cores annularly arranged on the yoke plate, electromagnetic coils mounted on the cores, a permanent magnet plate arranged in magnetic conductive relationship to the yoke plate; the yoke plate, the cores, coils, and permanent magnet plate establishing an electromagnetic assembly, there being additionally an armature assembly including an armature plate and a plurality of deflectable radially extending armature arms, the armature assembly being arranged in relation to the electromagnetic assembly such that the armature arms cooperate with the electromagnetic cores, there being print elements such as styli connected to the armature arms; the improvement disclosed is comprised of the following features, the armature plate and the armature arms are physically separated from each other but resiliently interconnected to establish a single uncritical parasitic air gap; and the magnetic yoke and armature plates are radially, inwardly recessed vis-a-vis the permanent magnet plate. A radially inwardly and outwardly recessed intermediate plate is interposed between the permanent magnet and the armature ring.
摘要翻译： 矩阵式打印头包括磁轭板，环形地设置在磁轭板上的磁极限定磁芯，安装在磁芯上的电磁线圈，与磁轭板成磁导电关系的永久磁铁板; 磁轭板，磁芯，线圈和建立电磁组件的永磁体板，还有一个电枢组件，其包括电枢板和多个可偏转径向延伸的电枢臂，电枢组件相对于电磁组件布置 电枢臂与电磁铁芯配合，存在诸如连接到电枢臂的测针的打印元件; 所公开的改进包括以下特征，电枢板和衔铁臂在物理上彼此分离，但是弹性互连以建立单个非关键寄生气隙; 并且磁轭和衔铁板相对于永磁体板径向地向内凹入。 径向向内和向外凹入的中间板介于永磁体和电枢环之间。
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公开(公告)号：US4634301A
公开(公告)日：1987-01-06
申请号：US662247
申请日：1984-10-18
CPC分类号： B41J2/28
摘要： A print head for dot printers comprising a plurality of actuators each including an armature supported on a holder through a torsion spring and having at its end a printing wire. The torsion spring is inserted in and bonded to the inner wall of through-holes of the bifurcated end portion of one of the armature and holder and to the inner wall of through-hole of the other of them, and has larger diameter portions fitted in the through-holes and smaller diameter portions interposed between the larger diameter portions. The smaller diameter portions of the torsion spring are formed in the concave section to avoid the concentration of torsional stress in the stepped boundary portions. Further, the opposite end portion of the other of said holder and armature made larger in thickness than the axial length of the torsion spring from the reason in strength, is forced at both end openings of the through hole with bevelling or facing portions, whereby the armature can be swung with uniform spring force of the torsion spring without being adversely affected by solder material leaked out.
摘要翻译： 一种用于点阵打印机的打印头，其包括多个致动器，每个致动器包括通过扭转弹簧支撑在保持器上的电枢，并且在其端部具有打印线。 扭转弹簧被插入并接合到电枢和保持器中的一个的分叉端部的通孔的内壁并且连接到另一个的通孔的内壁，并且具有更大的直径部分 插入在较大直径部之间的通孔和较小直径部分。 扭转弹簧的较小直径部分形成在凹部中以避免阶梯状边界部分中的扭转应力的集中。 此外，由于强度原因，所述保持器和电枢中另一个的另一个的相对端部的厚度大于扭簧的轴向长度，在通孔的两个端部开口处被强制倾斜或面对部分，由此， 电枢可以扭转弹簧的均匀弹簧力摆动，而不会受到焊料泄露的不利影响。
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公开(公告)号：US4610553A
公开(公告)日：1986-09-09
申请号：US657195
申请日：1984-10-03
申请人： Makoto Yasunaga , Tsutomu Ikehata
发明人： Makoto Yasunaga , Tsutomu Ikehata
CPC分类号： B41J2/28
摘要： A leaf spring unit has a leaf spring cantilevered on a supporting member, an armature secured to one side of a free end portion of the leaf spring, and a wire secured to the armature. A reinforcement plate is secured to the other side of the leaf spring opposite to the armature. An inner edge of the reinforcement plate is inwardly extended from the inner side of the armature so as to reinforce a part of the leaf spring.
摘要翻译： 板簧单元具有在支撑构件上悬臂的板簧，固定到板簧的自由端部的一侧的电枢和固定到电枢的线。 加强板被固定到与电枢相对的板簧的另一侧。 加强板的内边缘从电枢的内侧向内延伸，以便加强片簧的一部分。
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