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    • 6. 发明授权
    • Folding blade knife with spring assisted pivoting feature
    • 具有弹簧辅助旋转功能的折叠刀片
    • US06959494B2
    • 2005-11-01
    • US10680751
    • 2003-10-07
    • William J. Taylor
    • William J. Taylor
    • B26B1/02B26B1/04
    • B26B1/044B26B1/02B26B1/046
    • A folding knife having a blade and integral tang pivotally mounted to a handle with a cantilever spring fixedly attached at one end to the handle and extending to a free, terminal end having a lobed portion. A camming member fixed to the tang has a camming surface spaced from the pivot axis extending through the tang. The lobed portion of the spring contacts the camming surface when the blade is in the fully closed position and remains in contact throughout a first portion of the blade movement toward the open position. The spring is out of contact with the camming surface during a second portion of blade movement, from the end of the first portion to the fully open position. Momentum developed by spring force applied to the camming member during the first portion of blade movement is sufficient to move the blade through the second portion of its movement to the fully open position. Cooperative stop portions on the tang and handle define the limits of blade movement to fully open and closed positions, and resiliently lock the blade in the fully open position.
    • 一种具有叶片和整体柄的折叠刀,其具有可枢转地安装到手柄上,悬臂弹簧的一端固定地连接到手柄并且延伸到具有叶部的自由终端。 固定到柄脚的凸轮构件具有与延伸穿过柄脚的枢转轴线间隔开的凸轮表面。 当叶片处于完全关闭位置时,弹簧的凸起部分接触凸轮表面,并且在刀片运动的第一部分中朝着打开位置保持接触。 在刀片运动的第二部分,从第一部分的末端到完全打开位置,弹簧与凸轮表面脱离接触。 在叶片运动的第一部分期间通过施加到凸轮构件的弹簧力产生的动量足以使叶片通过其运动的第二部分移动到完全打开位置。 柄和手柄上的合作停止部分限定了刀片运动到完全打开和关闭位置的限制,并将刀片弹性锁定在完全打开位置。