Importance

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Abstract

A rotary router for routing at a smaller and a larger diameter, alternatively, and of shifting between the two modes semi or fully automatically. A mandrel carries a first cutter cutting at smaller diameter and a carriage mounted on the mandrel rotates around the same axis and carries a cutter cutting at a wider diameter. The carriage is moveable long the mandrel between a rearward position where the second cutter is inactive and the first cutter is exposed for cutting and a forward position where the second cutter is at an exposed cutting position adjacent and outside the first cutter and the first cutter is inactive for lateral cutting. An interlock device is provided for the mandrel and carriage that stops axial movement of the carriage beyond the forward position and stops rotational movement between the mandrel and the carriage while the carriage is at the forward position.

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First Claim