| 摘要 |
A locking knife having a thumb latch for release. The knife includes a handle, and the handle defines a cavity to receive the blade so the knife can be closed. A circular cam is fixed to the handle, and the blade has a circular hole to receive the cam, the blade being rotatable about the cam. A latch arm is pivoted with respect to the blade, and a cam follower depends from the latch arm and rides on the cam. A spring urges the cam follower towards the cam, and when the cam follower falls into the notch the blade is prevented from rotating with respect to the cam.
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