Patent ID: 6454051
Filing Date: 2002-09-24
Classification: E02D,F16C,F16N,Y10T

Abstract:
An oil lubricating system for a vibration generator, wherein the vibration generator comprises a housing, first and second rotor shafts provided in the housing and respectively supported on first and second bearings in a freely rotatable fashion, an eccentric rotor provided on the rotor shafts, a center chamber provided in the housing, first and second outer chambers provided in the housing and respectively partitioned by the first and second bearings, and a pulley which is provided on one of the first and second rotor shafts and to which power is transmitted from an outside source, said oil lubricating system comprising:an oil supply passage provided along an axial direction of the rotor shafts to connect the center chamber and the first and second outer chambers and enable oil in the center chamber to flow toward the first and second outer chambers; a closure member closing the oil supply passage at an outer end thereof on a side of the one of said first and second rotor shafts at which the pulley is provided; and an opening connecting the oil supply passage in front of the closure member with the pulley side one of said first and second outer chambers; wherein the oil supply passage on the pulley side and the opening connecting the oil supply passage with the pulley side one of said first and second outer chambers have cone shaped cross sections in a longitudinal direction with a larger inner diameter at an oil supply passage side end and a smaller diameter at an outer chamber side end.