Patent ID: 8122605
Filing Date: 2012-02-28
Classification: B26B

Abstract:
1. A hand-held utility knife, comprising: a knife handle forming a housing sized and dimension to fit in a hand of a user; a knife blade placed in a blade holder at least partially disposed within the knife handle housing; a blade guard at least partially disposed within the knife handle housing; a coupling mechanism including at least three pivot points that couples reciprocation of the knife blade and the blade guard such that forced retraction of the blade guard results in forced extension of the knife blade; wherein the knife blade holder and the blade guard each pivotally couple internally to the knife handle at separate internal pivot points in a manner where, in preparation for use, force from a surface on the blade guard causes the knife blade and the blade guard to simultaneously counter-reciprocate within the knife handle housing by the knife blade extending further out of the knife handle housing through pivoting relative to the knife handle, and at the same time the blade guard retracting further into the knife handle housing through pivoting in an opposite direction relative to the knife handle to that of the knife blade; and where the blade holder pivots about a first stationary pivot point relative to the housing, and the blade guard is pivotally coupled to the blade holder at a second translating pivot point.