A hand-held oscillating spindle sander is disclosed. The sander includes a pair of toothed pulleys associated with the output shaft. The first pulley is attached to the output shaft for rotation with the output shaft. The second pulley is rotatably disposed on the output shaft for relative rotation with respect to the output shaft. The first and second pulleys have a different number of teeth. The second pulley includes opposed camming surfaces formed on the inside thereof. A cam follower is attached to and extends from the output shaft so that it is positioned between the opposed camming surfaces. A pair of toothed belts are respectively entrained around the first and second pulleys from a jackshaft rotatably received in the housing. Upon rotation of the toothed belts, both pulleys rotate, but at slightly different speeds. This slight difference in speeds causes the cam follower to move along the opposed camming surfaces to create an oscillation effect for the output shaft. A dust recovery system is associated with the base of the tool proximate to where the sanding tools engages the workpiece.

Title
Hand-held oscillating spindle sander
Application Number
9/731796
Publication Number
20020009951
Application Date
December 8, 2000
Publication Date
January 24, 2002
Inventor
Thomas O aposNeal Walls
Cedar Grove
TN, US
Craig Allen Carroll
Jackson
TN, US
James Timothy Stolzer
Jackson
TN, US
Brent Edward Stafford
McLemoresville
TN, US
Mark Alan Etter
Jackson
TN, US
John Charles Smith
Jackson
TN, US
Agent
Hunton & Williams
DC, US
Agent
Christopher C Campbell
DC, US
IPC
B24B 01/00
View Original Source