| 摘要 |
A level winder (10, 110, 210, 310) for use on a hose reel (1), the level winder including: a carriage (20, 120, 220) operatively connected to a hose guide (104-108), the carriage adapted to control the winding of the hose onto the hose reel and to allow the hose to be paid out through the hose guide; and a drive mechanism 30 carrying at least one drive dog (32, 136) that is adapted to travel in a substantially vertical drive mechanism plane and to engage a carriage guide (12, 112) on which the carriage is mounted to move the carriage reciprocally along a track. The carriage guide is aligned in the same plane that the drive dog travels and the carriage guide comprises at least one curved surface (14, 114) adapted to define a recess (13, 113) and to engage a curved surface of the drive dog (16, 116), such that at least a portion of the drive dog curved surface (I6)is always facing or engaged with the carriage guide curved surface (14) and remains trapped in the recess (12, 113). |
