Woodworking – Shaping machine – Pattern
Patent
1987-06-08
1988-11-29
Bray, W. Donald
Woodworking
Shaping machine
Pattern
144134R, 144137, 409 89, 409108, 409124, 409182, B27C 500
Patent
active
047874309
ABSTRACT:
A duplicating router of the type in which a cutter unit provided with a motor and a cutter is fed vertically and horizontally with respect to a base. A cutter unit feeding screw rod is installed parallel with guide bars and rotates for operation on a vertical guide frame formed through framing left and right guides fitted movably up and down in elongated guide grooves provided on vertical guide plates fixed on both sides of the base and two parallel guide bars supporting the cutter unit for movement to the left and right, thus forming a screw feeding means. A link handle in a link motion is connected between the base and the left and right guides, thus forming a link feeding means. A template is fixed on upper portions of the vertical guide plates. A duplicating recessed groove is formed in the template in the direction orthogonal to an upper surface of the base. A guide in holder is provided upright from the cutter unit to form a guide pin parallel with the horizontal shaft of the cutter unit and fit in the duplicating recessed groove. A compression spring cushions the guide pin against the recessed groove.
REFERENCES:
patent: 3739824 (1973-06-01), Hoenig
patent: 4509572 (1985-04-01), L'Archer
Bray W. Donald
Ryobi Ltd.
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