Mechanism for detaching blade segments from a segmented knife bl

Details Mechanism for detaching blade segments from a segmented knife bl Mechanism for detaching blade segments from a segmented knife bl

1990-02-23

1991-05-14

Watts, Douglas D.

Cutlery

Sheathed

Sliding blade

30320, 30335, B26B 308, B26B 100, B26B 108

Patent

active

050144294

ABSTRACT:
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.

REFERENCES:
patent: 4063356 (1977-12-01), Hepworth
patent: 4240202 (1980-12-01), Gilbert
patent: 4322885 (1982-04-01), Osada

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