Utility knife with improved blade locking feature

Details Utility knife with improved blade locking feature Utility knife with improved blade locking feature

1987-01-12

1988-06-07

Kazenske, E. R.

Cutlery

Sheathed

Sliding blade

30151, B26B 306

Patent

active

047487437

ABSTRACT:
A utility knife of the type having a replaceable blade held in a blade holder and used for cutting carpeting, trimming wallpaper and other related uses. The blade holder comprises a handle which can be gripped when using the tool, the handle including an internal recess for containing the blade as well as a slide member having dove-tail edges cooperating with a tapered guideway and a thumb grip on the slide member projects through an opening in the handle to allow the user to readily move the slide member. The cooperation between the dove-tail edges on the slide member and the tapered guideway causes a clamping force to be imparted to the blade, locking it in a desired preset position.

REFERENCES:
patent: 4068375 (1978-01-01), Rathbun et al.
patent: 4139939 (1979-02-01), Crouks
patent: 4389776 (1983-06-01), Okada

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