Patent ID: 7104197

Claim:
An oscillation amount adjusting device for an oscillating roller in an oscillating roller swing device, said oscillating roller swing device including, an oscillating roller swung in an axial direction, a rotating shaft rotatably supported by a frame and having an inclined shaft portion inclined to an axis of said oscillating roller, a cylindrical sleeve rotatably fitted on said inclined shaft portion of said rotating shaft and having an outer peripheral surface inclined to an axis of said inclined shaft portion, sleeve locking-release means for rendering said sleeve nonrotatable or rotatable relative to said rotating shaft, an oscillating roller engagement member rotatably supported on said sleeve and having a first engagement portion engaging said oscillating roller, and drive means for rotating said rotating shaft, said oscillation amount adjusting device, comprising: a second engagement portion provided in said sleeve; and restraining means for engaging said second engagement portion to restrain rotation of said sleeve, wherein said sleeve locking-release means is brought into a release state and said restraining means is brought into engagement with said second engagement portion and, with said release state and said engagement being maintained, said drive means is driven.