Ryobi Motor Products Corp.

Ryobi North America, Inc.

William S Ballew

James A Keith, Jr

A vibration stabilizer is provided for a power tool such as a sander or the like which has a pivotally oscillating driveshaft for supporting a tool head. The tool is provided with an elongate body having an internal cavity aligned along a longitudinal axis for receiving a drive motor therein. A driveshaft is pivotally supported upon the elongate body rotatable about a pivot axis. The drive motor operatively engages the driveshaft to cause the driveshaft to pivotally oscillate within a limited angular range when the drive motor is energized. Relative vibration between the tool head and the elongate body is minimized by an elastic ring which extends about the driveshaft and is interposed between the tool head and the elongate body. The elastic ring is loaded in compression axially biasing the tool head and the attached driveshaft in a direction away from the elongate body.

Sander vibration isolator

An adjustable fence for orienting a plate joiner having a body and a rotating generally planar cutter to cut an arcuate slot in a workpiece is disclosed. The fence comprises a base, a handle and a fastening mechanism. The base is shiftably affixed to the plate joiner body and has a planar surface forming a first fence oriented generally perpendicular to the plane of the cutter. The base also has a guideway parallel to the first fence. The handle is movably adjustably affixed to the base and has a grip portion adapted to cooperate with a hand of an operator and a planar surface forming a second fence forming an angle relative to the first fence. The handle cooperates with the base guideway enabling the second fence to be adjusted along a guideway axis parallel to the first fence relative to the planar cutter. The handle is pivotal about a transverse axis parallel to the first and second fences to vary the angle of the second fence relative to the first fence. The fastening mechanism selectively fastens the handle to the base in any one of a plurality of desired locations.

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Greer, SC, United States of America

William S Ballew