公开(公告)号：US3641367A

公开(公告)日：1972-02-08

申请号：US3641367D

申请日：1970-12-24

Applicant: IBM

Inventor： GRIFFING BRANDT M

IPC: B41J9/44 ,  H03K17/73 ,  H03K17/00 ,  H03K17/56

CPC classification number: B41J9/44 ,  H03K17/73

Abstract: A circuit for providing constant width driving pulses to a plurality of selected print hammer coils from a single DC source. An RC circuit is used to commutate a controlled rectifier in series with the hammer coils in order quickly to terminate the current through each coil after actuation of its print hammer, thereby providing for high-speed operation of the hammers.

Abstract translation: 一种用于从单个DC源向多个选定的打印锤线圈提供恒定宽度驱动脉冲的电路。 RC电路用于与受到锤击线圈串联的可控整流器进行换向，以便在致动其打印锤之后快速地终止通过每个线圈的电流，从而提供锤的高速操作。

公开(公告)号：US3897865A

公开(公告)日：1975-08-05

申请号：US42383373

申请日：1973-12-11

Applicant: IBM

Inventor： DARWIN DANIEL P ,  GRIFFING BRANDT M ,  KIEL HARRY S

IPC: B41J2/25 ,  B41J2/26 ,  B41J2/265 ,  B41J3/12

CPC classification number: B41J2/265

Abstract: Wire matrix dot printing apparatus is disclosed in which a plurality of wire impact members are driven by electromagnetic means arranged in a circular pattern at the rear of a wire matrix print head. The wires are caused to converge following the arc of free bending in the wire from the circular array at the driver end to a parallel and colinear alignment at the printing or output end of the print head. The individual wires are continuously guided from the end where the drivers are located to a point where they are nearly parallel and colinear by utilizing an improved two-piece wire guide consisting of an inner cone with grooves on its surface and an outer shell which confines the wires to the grooves in the inner cone. The shape of the inner cone is such that the paths of the wires converge from a circular array at the driver end of the print head to a nearly colinear and parallel array at the output end of the print head.

Abstract translation: 公开了一种线阵打印装置，其中多个线材冲击构件由布置在线阵列打印头后部的圆形图案的电磁装置驱动。 导线沿导线上的自由弯曲弧从驱动端处的圆形阵列收敛到在打印头的打印或输出端处的平行和共线对准。 通过使用改进的两件式电线导向器，其各个导线从驱动器所在的端部连续地引导到它们几乎平行并且共线的位置，该引导件包括在其表面上具有凹槽的内锥体和限定 电线到内锥体的凹槽。 内锥体的形状使得导线的路径从打印头的驱动器端处的圆形阵列会聚到在打印头的输出端处的几乎共线并联的阵列。

公开(公告)号：US3659238A

公开(公告)日：1972-04-25

申请号：US3659238D

申请日：1970-06-30

Applicant: IBM

Inventor： GRIFFING BRANDT M

IPC: B41J9/36 ,  H01F7/08 ,  H01F7/14 ,  H02K33/00

CPC classification number: B41J9/36 ,  H01F7/08 ,  H01F7/14 ,  H02K33/00

Abstract: Two essentially parallel magnetic flux paths are arranged so as to share a permanent magnet. A movable armature in one flux path functions as a mechanical actuator by means of a selectively actuated magnetic opposing coil for effectively cancelling the flux in that path. The other of the parallel magnetic flux paths is constructed and arranged for providing a shunt for sufficient additional magnetic flux during actuation of the opposing coil so as to prevent the shifting of the magnetic properties of the permanent magnet beyond the point of recovery to the original operating point upon deactuation of the coil. The mechanical arrangement is such that the movable armature is retrieved by the magnetic circuit when the coil is deenergized.

Abstract translation: 布置两个基本平行的磁通路径以共享永磁体。 一个通路中的可移动电枢通过一个选择性致动的磁性相对线圈作为机械致动器，用于有效地消除该路径中的磁通。 平行磁通路径中的另一个被构造和布置成在对置线圈的致动期间提供用于足够的附加磁通量的分路，以便防止永久磁铁的磁性能超出恢复点的移动到原始操作 指出线圈的停用。 机械结构使得当线圈断电时，可动电枢被磁路取回。