Apparatus and method of producing chair mats and the like

Details Apparatus and method of producing chair mats and the like Apparatus and method of producing chair mats and the like

1988-01-25

1989-09-12

Bray, W. Donald

Woodworking

Shaping machine

Pattern

144134C, 144137, 144142, 144240, 409 90, 409121, 409124, 409178, B23C 118, B23G 506

Patent

active

048650935

ABSTRACT:
An apparatus and method for forming a workpiece or chair mat with cleats on the underside thereof, and with a marginal peripheral area void of cleats, and for trimming the edge of a generally planar workpiece. A rotatable work table is provided for positioning the workpiece. A router head includes an inclined router blade engageable with the edge of the workpiece to form a beveled ramp edge thereabout. A template is positioned between the workpiece and the work table, and the router head has a cam follower engageable with and movable along the edge of the template for guiding the router blade along the edge of the workpiece during rotation of the work table. A cooling medium is directed toward the area of engagement between the router blade and the edge of the workpiece. The depth of cut is controlled by a cam disk mounted on the bottom of the router head engageable with the top of the workpiece.

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