| 摘要 |
<p>A utility knife having a knife body, a movable blade holder inside the knife body for slidably moving a flat blade and a blade retaining arm selectively engageable with the blade for removably retaining the flat blade on the blade holder, and a blade release button engageable with the blade retaining arm for disengaging the blade retaining arm from the blade. The blade release button is slidably mounted in the knife body and movable in a direction substantially parallel to a major plane of the flat blade such that sliding the blade release button moves the blade retaining arm to disengage the blade retaining arm from the blade.</p> |
