Cutterhead for a power planer

Details Cutterhead for a power planer Cutterhead for a power planer

1980-10-07

1982-09-07

Schran, Donald R.

Woodworking

Rotary cutter

Polygonal rotary cutter having plane bit seat

145 4, B27C 110, B27G 1304

Patent

active

043478824

ABSTRACT:
The invention is directed to a rotary cutterhead for a portable power planer tool, as well as a method of making the cutterhead. The cutterhead includes an elongated core and a pressure plate mounted on the core and which cooperates therewith to define a slot-like opening for receiving a cutting blade and locating the cutting edge thereof relative to the cutting circle of the cutterhead. The pressure plate is positioned and fixed in a permanent location relative to the core so that the cutting edge of any standard cutting blade of predetermined dimensions will extend from the opening beyond the cutting circle of the cutterhead a preferred optimum distance for performing a planing operation. The cutterhead includes a cover portion having a clamping edge which biases the pressure plate toward the core when the cover portion is tightened so that the two cooperate to clampingly retain the cutting blade within the opening. The pressure plate includes a projection which extends into the opening and prevents radial ejection of the cutting blade therefrom if an operator neglects to tighten the cover portion.

REFERENCES:
patent: 76556 (1868-04-01), Tosterin
patent: 275890 (1883-04-01), Cross
patent: 353509 (1886-11-01), Shimer
patent: 811769 (1906-02-01), Forbes
patent: 1400245 (1921-12-01), Smith

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