Drywall sheet trimmer

Details Drywall sheet trimmer Drywall sheet trimmer

1997-01-27

1998-02-24

Payer, Hwei-Siu

Cutlery

Cutting tools

With guard and/or guide

30294, 30292, B26B 2906

Patent

active

057201048

ABSTRACT:
A compact, reliable and convenient drywall-sheet trimmer has opposed cutter disks (7, 8) positioned rotationally in opposing walls (3, 4) of a trimmer channel (2) having a slide bar (19) that is adjustable in positioning intermediate the opposing cutter disks and a channel bottom (21). Pinion teeth (25) on an adjustment shaft (24) are rotated by helical worm gearing (28) with an adjustment knob (30) to actuate rack teeth (26) on slide rods (22) attached to the slide bar for adjusting distance of the slide bar from the cutter disks to control widths of trimming cuts. Surfaces of drywall sheets (6) are scored or cut to cause the drywall sheets to be breakable by applying bending moment along lines of scored or cut surface material and/or indentations caused by cutting entry of the opposed cutter disks.

REFERENCES:
patent: 2529210 (1950-11-01), Butler
patent: 2706002 (1955-04-01), Whittamore
patent: 3174225 (1965-03-01), Abraham
patent: 4495697 (1985-01-01), Ruff
patent: 5027515 (1991-07-01), Murdock
patent: 5083375 (1992-01-01), Helm, Sr.
patent: 5488773 (1996-02-01), Fletcher
patent: 5600892 (1997-02-01), Peugh et al.

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