Patent ID: 7607523
Filing Date: 2009-10-27
Classification: F16D,Y10T

Abstract:
1. A lock mechanism for selectively coupling two concentric shafts rotatable about a common axis of rotation comprising: a locking ring assembly movable along said axis of rotation of the two concentric shafts between a locked position and an unlocked position; a first locking portion extending radially from said locking ring assembly circumferentially about said axis of rotation for engaging a first of the two shafts; a second locking portion extending radially from said locking ring assembly opposite said first locking portion circumferentially about said axis of rotation for engaging a second of the two shafts; and a third locking portion spaced from said second locking portion along said axis of rotation and extending radially from said locking ring assembly opposite said first locking portion circumferentially about said axis of rotation for engaging the second of the two shafts, wherein all of said first, second and third locking portions are operable to move along said rotation axis, and wherein said locking ring assembly further comprises: