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    • 4. 发明授权
    • Method of controlling welding current in direct-current resistance
welding machine
    • 直流电阻焊机焊接电流控制方法
    • US5406045A
    • 1995-04-11
    • US171673
    • 1993-12-22
    • Daisuke KiriishiHisaya WatanabeKensaku KaneyasuTomohiko ItoYukihiro Yaguchi
    • Daisuke KiriishiHisaya WatanabeKensaku KaneyasuTomohiko ItoYukihiro Yaguchi
    • B23K11/24B23K11/25
    • B23K11/257
    • A workpiece is welded successively at a plurality of welding points by a direct-current resistance welding machine with a constant current in a welding current supply period at each of the welding points, and the constant current is varied depending on whether expulsions are produced on the workpiece when it is welded, to determine an expulsion-producing limit current value as a maximum current beyond which expulsions will be produced. The workpiece is welded with a first stepped welding current having a first current value that is smaller than the expulsion-producing limit current value by a predetermined value and a second current value that is greater than the expulsion-producing limit current value, and an average current value higher than the expulsion-producing limit current value, and also with a second stepped welding current having a variation of the second current value based on whether expulsions are produced or not on the workpiece when it is welded with the first stepped welding current.
    • 在焊接点处的焊接电流供给期间,通过具有恒定电流的直流电阻焊接机在多个焊接点处连续焊接工件,并且恒定电流根据是否在 工件被焊接时,确定产生出力的极限电流值作为最大电流,超过其将被产生排出。 工件用第一阶梯焊接电流焊接,第一阶梯焊接电流的第一电流值小于产生驱动极限电流值预定值,第二电流值大于驱出产生极限电流值,平均值 电流值高于排出产生极限电流值,并且还具有基于当用第一阶梯焊接电流焊接工件时在工件上是否产生排出而具有第二电流值变化的第二阶梯焊接电流。
    • 6. 发明授权
    • Screw equipped with locking means
    • 螺丝配有锁紧装置
    • US4781505A
    • 1988-11-01
    • US888651
    • 1986-07-03
    • Hisaya Watanabe
    • Hisaya Watanabe
    • F16B39/284F16B37/00F16B39/28F16B39/22
    • F16B37/00F16B39/28
    • A screw equipped with locking means, includes a female thread made of a synthetic resin and a male thread made of a metal, or a female thread made of a synthetic resin and a male thread made of a synthetic resin, fitted with each other, the female thread having a double cylindrical boss portion formed at the center thereof so that the male thread may be fitted into the innerside boss portion and the thread portion of the boss may be deformed more or less when pressed against the shaft of the male thread in the direction perpendicular thereto through the resilience of the synthetic resin, which is the material of the female thread, by pressing the terminal end of the innerside boss portion against the flange portion of the male thread or a member to be fixed at the final stage of clamping the screw. A female threaded nut may have a blind bore with a projection at the bottom for engagement and deformation by a cutter on the end of a bolt.
    • PCT No.PCT / JP85 / 00618 Sec。 371日期:1986年9月3日 102(e)1986年9月3日PCT PCT公布1985年11月6日PCT公布。 出版物WO86 / 02980 日期:1986年5月22日。具有锁定装置的螺钉包括由合成树脂制成的阴螺纹和由金属制成的阳螺纹,或由合成树脂制成的阴螺纹和由合成树脂制成的阳螺纹, 内螺纹具有形成在其中心处的双圆柱形凸台部分,使得外螺纹可以装配在内侧凸台部分中,并且凸台的螺纹部分在压靠轴时可能会或多或少地变形 通过将作为内螺纹的材料的合成树脂的弹性通过将内侧凸起部的端部压靠在阳螺纹的凸缘部或固定部件上而与其垂直的方向上的阳螺纹 在夹紧螺钉的最后阶段。 内螺纹螺母可以具有盲孔,在底部具有突起,用于通过螺栓端部上的切割器进行接合和变形。