Woodworking – Process – Mechanical cutting or shaping
Patent
1995-03-10
1996-09-10
Rachuba, M.
Woodworking
Process
Mechanical cutting or shaping
29 26A, 408 26, 409199, 1441341, B27M 108, B27C 100
Patent
active
055536450
ABSTRACT:
An apparatus (30) and method for forming an obliquely oriented counterbore (17) in a surface (15) of a workpiece (13) and a fastener receiving passage (19) proximate an edge (32) of the workpiece (13). The apparatus (30) includes a support frame (33), and a router assembly (34). The router assembly (34) is mounted for arcuate movement between a stored position, out of contact with the workpiece (13), and a routing position where a router bit (36) contacts the workpiece (13) to cut a tapering recess (1.7). A drill assembly (39) is movably mounted to the frame (33) for linear movement between a recessed position, out of contact with the workpiece (13), and a drilling position. In the drilling position, a drill bit (41) engages the workpiece (13) in a direction generally opposing the router bit (36) to drill the passage (19). A biasing assembly (43) is included independently biasing the router assembly (34) and the drill assembly (39) in generally opposite directions toward the stored position and the recessed position, respectively, to maintain the router bit (36) and the drill bit (41) out of engaging contact with one another.
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Castle Tool Machinery Incorporated
Rachuba M.
Tsai Henry
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