| 摘要 |
A knife having a sliding blade which may slide from a retracted position to an extended position. A locking member is pivotally connected to the blade and travels with the blade as the blade moves within a handle. A finger on the locking member engages with a recess to selectively lock the blade within the handle. By rocking the locking member forward, against the pressure of a spring, the blade is pushed outwardly from the handle until the finger automatically seats in an extension notch provided in the handle. Retraction of the knife is accomplished by rocking the locking member forward and pulling rearwardly thereon to force the blade back into the handle. A sheath for the knife engages the locking member to automatically lock the knife within the sheath upon insertion into the sheath. Upon extraction of the knife from the sheath, the blade is automatically extended.
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