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    • 86. 发明授权
    • Ratchet device having a stopper member for preventing excessive rotation
of ratchet wheel, and tape feeding apparatus using the ratchet device
    • 具有用于防止棘轮过度旋转的止动构件的棘轮装置,以及使用该棘轮装置的带料供给装置
    • US5294035A
    • 1994-03-15
    • US878524
    • 1992-05-05
    • Koichi AsaiMamoru TsudaShinsuke Suhara
    • Koichi AsaiMamoru TsudaShinsuke Suhara
    • F16H31/00B65H20/22B65H20/00
    • B65H20/22B65H2701/1942Y10T74/1529Y10T74/1555Y10T74/2137Y10T74/214
    • A ratchet device is disclosed which includes a body, a ratchet wheel rotatably supported by the body, a feed pawl having an engaging portion engageable with teeth of the ratchet wheel, a support member for holding the feed pawl, a member for biasing the feed pawl toward the wheel teeth, and a drive device for moving reciprocating the support member between two positions to place the feed pawl alternately in its fully advanced and retracted positions, so as to rotate the ratchet wheel a predetermined angle in one direction. The ratchet device further includes a stopper member for contact with the feed pawl when the pawl is placed in the fully retracted position, to thereby prevent the engaging portion of the pawl from disengaging from the teeth of the ratchet wheel. Further, the engaging portion of the feed pawl is shaped so that it engages mutually opposed faces of the ratchet wheel when the feed pawl is in contact with the stopper member, to thereby lock the ratchet wheel against clockwise and counterclockwise rotations thereof. Also disclosed is a tape feeding apparatus which utilizes the ratchet device.
    • 公开了一种棘轮装置,其包括主体,由主体可旋转地支撑的棘轮,具有与棘轮的齿接合的接合部的进给爪,用于保持进给爪的支撑构件,用于偏压进给爪的构件 以及用于使支撑构件在两个位置之间往复运动的驱动装置,以将进给爪交替地放置在其完全前进和缩回位置,以便使棘轮沿一个方向旋转预定角度。 棘爪装置还包括止动构件,当棘爪处于完全缩回位置时,该止动构件与进给爪接触,从而防止棘爪的接合部分从棘轮的齿脱离。 此外,进给爪的接合部分被成形为当进给爪与止动件接触时它与棘轮的相互相对的面接合,从而锁定棘轮以防止其顺时针和逆时针转动。 还公开了一种利用棘轮装置的带子送料装置。
    • 90. 发明授权
    • Sheet feeding apparatus
    • 送纸装置
    • US5244202A
    • 1993-09-14
    • US811911
    • 1991-12-23
    • Yoshifumi NishimotoKenichi Kataoka
    • Yoshifumi NishimotoKenichi Kataoka
    • B65H5/00B65H9/04B65H20/00H01L41/09
    • H02N2/08B65H5/008B65H9/04B65H2555/14
    • A sheet feeding device includes a vibration member having at least one circular-arc portion, for generating a travelling wave, and a sheet guide for guiding a sheet. Since an amplitude of vibration at an inner circumferential side of the vibration member is smaller than an amplitude of vibration at an outer circumferential side, a distortion is produced in the vibration member in a direction perpendicular to the direction of movement of the sheet. The sheet guide is provided at an inner circumferential side of the vibration member, so that the sheet is fed due to the distortion while being pressed against the sheet guide. Hence, an oblique movement of the sheet due to unevenness in the thickness of the sheet can be prevented.
    • 片材进给装置包括具有用于产生行波的至少一个圆弧部分的振动部件和用于引导片材的片材引导件。 由于振动部件的内周侧的振动振幅小于外周侧的振动振幅,所以在垂直于片材的移动方向的振动部件产生变形。 片材引导件设置在振动部件的内周侧,使得片材在被压靠在片材引导件上时由于变形而进给。 因此,可以防止由于片材厚度的不均匀引起的片材的倾斜移动。