Mechanism for detaching blade segments from a segmented knife blade

A utility knife includes a mechanism for detaching the individual blade segments along segmentation lines from a segmented knife blade. The detachment mechanism includes a plunger located at the forward end of the utility knife. An adjustment mechanism advances the knife blade for alignment between...

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Bibliographic Details
Main Author MCNAMARA; WILLIAM J
Format Patent
LanguageEnglish
Published 14.05.1991
Subjects
CUTTING
HAND CUTTING TOOLS
HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SEVERING
TRANSPORTING
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Summary:A utility knife includes a mechanism for detaching the individual blade segments along segmentation lines from a segmented knife blade. The detachment mechanism includes a plunger located at the forward end of the utility knife. An adjustment mechanism advances the knife blade for alignment between the plunger and a retention chamber. Actuation of the plunger exerts a transverse force on the blade segment, detaching same from the remainder of the blade. The retention chamber prevents the detached blade segment from flying from the utility knife where it could cause injury or damage. Optionally, the utility knife may include a spare blade storage compartment and/or a guidance mechanism to facilitate the cutting of straight or curved lines in particular situations.
Bibliography:Application Number: US19900483925