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    • 4. 发明申请
    • Utility knife having safe locking device
    • 实用刀具有安全锁定装置
    • US20050262701A1
    • 2005-12-01
    • US10858532
    • 2004-05-29
    • Chao Lai
    • Chao Lai
    • B26B1/04
    • B26B1/048
    • A utility knife includes a housing having two plates secured together, to form a space between the plates, a knife blade has one end rotatably secured to the plates, to allow the knife blade to rotate out of the housing toward a working position or to rotate into the space of the housing toward a storing position. A latch is movably received in the plates and engageable into and out of a lock notch of the knife blade, to selectively lock the knife blade to the plates at the working position. A spring member may bias the latch into the notch of the knife blade, and to selectively lock the knife blade to the housing at the working position.
    • 实用刀包括具有固定在一起的两个板的壳体,以在板之间形成空间,刀片具有可旋转地固定到板的一端,以允许刀片从壳体旋转到工作位置或旋转 进入存储位置的壳体的空间。 闩锁可移动地容纳在板中并且可接合进入和离开刀片的锁定槽口,以在刀片位置选择性地将刀片锁定到板上。 弹簧构件可以将闩锁偏置到刀片的凹口中,并且在工作位置选择性地将刀片锁定到壳体。