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热词
    • 2. 发明授权
    • Electromagnetic actuator
    • 电磁执行器
    • US4945331A
    • 1990-07-31
    • US385001
    • 1989-07-25
    • Tadashi Kashio
    • Tadashi Kashio
    • B41J9/38H01F7/14H01F7/08
    • H01F7/14B41J9/38
    • An electromagnetic actuator for driving a hammer of an impact printer includes a solenoid and an armature which is attracted thereby. In a state of standby for printing, no current is supplied to the solenoid, and the armature holds the hammer in an urge-accumulated state. Upon supply of a current to the solenoid, the armature is attracted toward the core, and the hammer head in that state is released so as to be impacted against a platen, thereby effecting a printing operation. If the current is shut off with the armature attracted by the core of the solenoid, the armature returns to its original position. To effect a speedy return at that juncture, a return leaf spring having a resilient bent portion is interposed between the core and the armature.
    • 用于驱动冲击打印机的锤的电磁致动器包括螺线管和被其吸引的电枢。 在打印待机的状态下,不向电磁阀供给电流,并且电枢将锤保持在敦促积存状态。 在向螺线管供给电流时,电枢被吸引到芯部,并且在该状态下的锤头被释放以被撞击压板,从而进行打印操作。 如果电流被螺线管的铁心吸引的电枢切断,则电枢返回到原来的位置。 为了在该时刻快速返回,具有弹性弯曲部分的返回板簧夹在铁心和电枢之间。