Patent ID: 7101295
Filing Date: 2006-09-05
Classification: B23D,F16H

Abstract:
1. A power transmission device comprising: a driving side supporting member; a first transmission wheel supported by said driving side supporting member; a driven side supporting member supported by said driving side supporting member in a manner enabling said driven side supporting member to be moved in a direction orthogonal to the rotational axis of said first transmission wheel; a second transmission wheel supported by said driven side supporting member; a power transmission member having an endless loop configuration which is wound around said first transmission wheel and said second transmission wheel to enable power transmission between said first and second transmission wheels; and a cam-type adjusting mechanism interposed between said driving side supporting member and said driven side supporting member and configured to adjust a distance between axes of said first transmission wheel and said second transmission wheel; said cam-type adjusting mechanism comprises wherein said driven side supporting member is moveable relative to said driving side supporting member by said cam in accordance with an angle of rotation of said manipulating boss member, thereby enabling alteration of a distance between the axes of said first transmission wheel and said second transmission wheel.