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    • 57. 发明授权
    • Reciprocating knife cutter with flexible drive portion
    • 具有柔性驱动部分的往复式刀具
    • US4879935A
    • 1989-11-14
    • US156835
    • 1988-02-17
    • Heinz J. Gerber
    • Heinz J. Gerber
    • B26D1/10B26D5/00B26D5/14B26F1/38
    • B26D5/14B26F1/38B26F1/382Y10S83/939Y10T83/6875Y10T83/688Y10T83/8697Y10T83/8843Y10T83/8848
    • A cutter in which a reciprocating knife is driven by an eccentric mechanism. The knife has a drive portion that flexes laterally in a plane perpendicular to the drive axis of the eccentric mechanism. The eccentric drive axis is offset along the perpendicular plane away from the axis on which the knife reciprocates. The offset of the eccentric drive axis allows the flexible drive portion to be kept straighter during the downstroke than in previous cutters. The increased straightening provides greater columnar strength and reduces deflection and stress of the drive portion during the time the knife is in compression. During the upstroke the knife is bent to a greater degree than in the previous cutters, but during this time the knife is in tension, the tension forces opposing rather than aiding the bending. The offset therefore provides for a longer service life for a blade of equal size or allows a reduction in size and mass of the knife to maintain an equivalent service life.
    • 其中往复刀由偏心机构驱动的刀具。 刀具具有在垂直于偏心机构的驱动轴线的平面中横向弯曲的驱动部分。 偏心驱动轴线沿着垂直平面偏离刀片往复运动的轴线。 偏心驱动轴的偏移允许柔性驱动部分在下行期间比先前的切割机保持更直。 增加的矫直提供更大的柱状强度并减少在刀被压缩时的驱动部分的偏转和应力。 在上行期间,刀比之前的刀具弯曲得更大,但是在这段时间内刀具处于紧张状态,张紧力相反而不是辅助弯曲。 因此,偏移量为相同尺寸的刀片提供更长的使用寿命,或允许刀具的尺寸和质量的减小以维持等效的使用寿命。
    • 58. 发明授权
    • Scroll saw mount for multi-purpose tool
    • 滚动锯安装用于多功能工具
    • US4813322A
    • 1989-03-21
    • US053806
    • 1987-05-26
    • Verle L. Rice
    • Verle L. Rice
    • B23D49/00B23D51/02B23Q11/00B27B19/06
    • B23D49/007B23D51/02B23Q11/0032Y10T83/688Y10T83/705
    • A novel mounting assembly for use with a universal woodworking tool support system is the subject of the invention. First and second straight elongated support stanchions are received by tubular members of the universal tool support system. A scroll saw is mounted on top of these two straight stanchions. A drive train includes an eccentric drive for reciprocating the scroll saw arms and a concentric mass between the eccentric drive and the output of the prime mover is part of the universal tool support system. The concentric mass together with the straight support stanchions greatly reduces the vibrations which are transmitted through the drive train to the scroll saw framework.
    • 用于通用木工工具支撑系统的新型安装组件是本发明的主题。 第一和第二直的细长支撑支柱由通用工具支撑系统的管状构件容纳。 一个滚动锯安装在这两个直立的支柱之上。 传动系包括偏心驱动器,用于使涡旋锯臂往复运动,偏心驱动与原动机的输出之间的同心质量是通用工具支撑系统的一部分。 同心的质量与直的支撑支柱一起大大减少了通过传动系传递到涡旋锯框架的振动。