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139 条记录 (耗时 0.012 秒)

    Power minimization for electrostrictive actuated printers
    91.
    发明授权
    Power minimization for electrostrictive actuated printers 失效
    电致动打印机的功率最小化

    公开(公告)号：US3919934A

    公开(公告)日：1975-11-18

    申请号：US49078074

    申请日：1974-07-22

    申请人： BURROUGHS CORP

    发明人： BEERY JACK

    IPC分类号： B41J9/38

    CPC分类号： B41J9/38

    摘要： In a printer utilizing piezoelectric crystals, electrostrictive members, as the prime movers for the print hammers, significant power reduction may be achieved by applying a high voltage to contract the piezoelectric crystal and then discharging that voltage thereby causing the crystal to expand at a rapid rate thus driving the print hammer. The crystal is initially charged across its width, which is transverse to the direction of travel of the crystal, causing a reduction in its length. A transistorized switching circuit is utilized to discharge the high voltage applied to the crystal thus causing the crystal to expand at a rapid rate. By providing a charging time constant substantially longer than the time required to discharge the potential across the crystal, the current requirements, and thus the power requirements, for the system are substantially reduced.

    摘要翻译： 在使用压电晶体的打印机中，作为打印锤的原动机的电致伸缩构件可以通过施加高电压来收缩压电晶体然后放电该电压，从而使晶体以快速的速率膨胀来实现显着的功率降低 从而驱动打印锤。 晶体最初在其横向于晶体的行进方向的宽度上被充电，导致其长度的减小。 使用晶体管开关电路来放电施加到晶体的高电压，从而使晶体以快速的速率膨胀。 通过提供充电时间常数远大于在晶体上放电的时间所需的时间，对于系统来说，电流要求以及因此的功率要求都大大降低。

    Matrix printer drive element
    92.
    发明授权
    Matrix printer drive element 失效
    矩阵打印机驱动元件

    公开(公告)号：US3836880A

    公开(公告)日：1974-09-17

    申请号：US40969973

    申请日：1973-10-25

    申请人： TELE SPEED COMMUNICATIONS INC

    发明人： MATSCHKE A ,  HOROWITZ J

    IPC分类号： B41J2/275 ,  B41J9/38 ,  H01F7/14 ,  H01F7/13

    CPC分类号： H01F7/14 ,  B41J2/275 ,  B41J9/38

    摘要： An improved electromagnet design for use as a dot-matrix printer drive element. A solid winding core is provided with integral pole pieces at both ends. A leaf spring is secured to a first pole piece and extends generally parallel to the axis of the core. A magnetic field shunt piece is secured at the free end of the spring on the side facing the core. A printing wire shoe is also secured to the leaf spring at its free end, and extends away from it. The printing wire is affixed in the shoe and extends back across the axis of the core. In the un-energized condition, there is a gap between the shunt and the second pole piece that is roughly one-half of the desired stroke of the printing wire. The electromagnet is of very low mass, but operates at high speed with a long printing stroke having maximum force at the moment of impact of the printing wire on the printing medium. This design allows a plurality of such drive elements to be radially mounted in a circle with all of the respective printing wires close to the center of that circle. The center of the circle will also coincide with the centerline axis of the printed characters.

    摘要翻译： 用作点阵打印机驱动元件的改进的电磁铁设计。 实心卷绕芯在两端设置有整体极片。 板簧被固定到第一极靴并且大致平行于芯的轴线延伸。 磁场分流片固定在弹簧的自由端面对芯的一侧。 印刷线鞋也在其自由端固定在板簧上，并远离它。 印刷线固定在鞋中，并延伸穿过芯的轴线。 在未通电状态下，分流器和第二极靴之间存在大约是印刷线的期望行程的一半的间隙。 电磁体质量非常低，但是在打印线在打印介质上的冲击时具有最大的力的长打印行程，以高速运行。 这种设计允许多个这样的驱动元件径向地安装在圆圈中，其中所有的各个印刷线都靠近该圆的中心。 圆的中心也将与打印字符的中心线轴重合。

    Printing mechanism actuator
    93.
    发明授权
    Printing mechanism actuator 失效
    印刷机构执行器

    公开(公告)号：US3745497A

    公开(公告)日：1973-07-10

    申请号：US3745497D

    申请日：1971-08-11

    申请人： DATADYNE CORP

    发明人： CAVELLA J

    IPC分类号： B41J9/38 ,  H01F7/14 ,  H01F7/08

    CPC分类号： B41J9/38 ,  H01F7/14

    摘要： A printing mechanism actuator for use with a hammer assembly in an on-the-fly type digital printer. The actuator is magnetically actuated and through an actuating arm imparts force to a corresponding hammer pin to cause it to be thrust into printing position. Support structure aligns the actuating arm, and spring biasing means connected to the support effectively returns the actuating arm to its resting position after actuation. The actuators are placed so that each succeeding actuator opposes the preceding actuator with only the hammer impact areas forming a common line and this design coupled with the compactness of the actuators permits the placement of ten units per lineal inch.

    Multiple hammer magnetic pole piece block
    95.
    发明授权
    Multiple hammer magnetic pole piece block 失效
    多重锤形磁极块块

    公开(公告)号：US3734013A

    公开(公告)日：1973-05-22

    申请号：US3734013D

    申请日：1971-12-23

    申请人： IBM

    发明人： BELSER K

    IPC分类号： B41J1/20 ,  B41J9/12 ,  B41J9/24 ,  B41J9/38 ,  H01F7/04

    CPC分类号： B41J9/38 ,  B41J9/12

    摘要： A print hammer actuating assembly for a high speed printer, wherein a one-piece magnetic block is secured to a first core structure to provide a second core unit which includes a multiplicity of integral pole pieces. The block is of elongated construction and it has a series of spaced apart projections extending transversely to its longitudinal axis to provide discrete pole pieces. A series of elongated bores extend transversely to the longitudinal axis of the block in alignment with each of the projections. A hammer actuator assembly is disposed in each bore. A bucking coil contiguously surrounds each of the projections to provide a series of selectively energizable magnetic fields for operating each hammer actuator. With such an arrangement, the single pole piece block may be readily manufactured and assembled, at reduced cost. In addition, the working distance between tips of hammers and the paper may be readily adjusted by means of a single operation, thus affording a considerable saving in field maintenance time.

    Impact line printer
    96.
    发明授权
    Impact line printer 失效
    冲击线打印机

    公开(公告)号：US3730082A

    公开(公告)日：1973-05-01

    申请号：US3730082D

    申请日：1971-08-24

    申请人： ODEC COMPUTER SYSTEMS

    发明人： PERRY R

    IPC分类号： B41J1/20 ,  B41J9/38 ,  B41J1/30

    CPC分类号： B41J1/20 ,  B41J9/38 ,  Y10S400/902

    摘要： This disclosure relates to an impact hammer printer and the structure for adjusting the platen face of each individual hammer, individually and collectively in relation to a stationary anvil and type faces rotatively mounted in a closed loop past the platen faces of an upper and lower bank of hammers. The disclosure also includes a pivotal yoke arrangement forming part of the machine frame which carries the closed loop guide track, anvil and character carrying closed loop.

    摘要翻译： 本公开涉及一种冲击锤打印机和用于调节每个单独锤的压板面的结构，其单独地和集体地相对于静止砧座和类型面旋转地安装在闭环中，通过上下两侧的压板面 锤子 本公开还包括形成机架的部分的枢转轭装置，其承载闭环导轨，砧座和人物承载闭环。

    Resilient magnetic coupling
    98.
    发明授权
    Resilient magnetic coupling 失效
    弹性磁耦合

    公开(公告)号：US3652965A

    公开(公告)日：1972-03-28

    申请号：US3652965D

    申请日：1969-10-06

    申请人： NCR CO

    发明人： KREBS FREDERICK G ,  REDMAN SAMUEL A

    IPC分类号： B41J9/38 ,  H01F1/00

    CPC分类号： B41J9/38

    摘要： An elastic coupling made from moldable curable material having both magnetic permeability and desirable mechanical properties, including resilience, flexure tolerance, and large-area contact with metallic members, is disclosed. Application of the coupling in a bonded junction between lightweight fast-acting fatiguestress-susceptible members which are connected between acceleratable masses in a magnetic-solenoid-excited dataprocessing peripheral is shown.