Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Pulley shifter
Patent
1996-12-16
1999-05-11
Jeffery, John A.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Pulley shifter
474133, 474150, F16H7/14;7/12;7/24
Patent
active
059022027
ABSTRACT:
A belt tensioning system for an appliance, which has a tub driven by an endless loop drive belt connected to a motor that is movable with respect to a tub housing surrounding the tub, includes a rib extending from the tub housing, a pivotal cam washer having a pivot axis and an eccentrically curved cam profile edge with a series of arcuately spaced contact points thereon for engaging the ribs on the tub housing. The cam washer is pivotally mounted to the motor along the pivot axis and loosenably secured against rotation about the pivot axis and with respect to the motor. Normally, one of the contact points engages the rib so as to establish an offset distance between the rib and the motor, and thereby a tension on the drive belt. When the cam is loosened, the motor can be moved with respect to the tub housing and the cam washer can be pivoted into the rib until the rib rests against a new contact point on the cam profile edge to establish a new offset distance between the motor and rib so that a new tension is applied to the drive belt.
REFERENCES:
patent: 3430507 (1969-03-01), Hurst et al.
patent: 3744325 (1973-07-01), Brucken
patent: 3866487 (1975-02-01), Key
patent: 3889496 (1975-06-01), Heyne
patent: 3965768 (1976-06-01), Foster
patent: 4018096 (1977-04-01), Foster
patent: 4036070 (1977-07-01), Knight
patent: 4193315 (1980-03-01), Noe
patent: 4571221 (1986-02-01), Isobe et al.
patent: 4708695 (1987-11-01), Sugiyama
patent: 4826469 (1989-05-01), Cooley
patent: 4883445 (1989-11-01), Gomoll et al.
patent: 4887992 (1989-12-01), Dixon
patent: 4922151 (1990-05-01), Lewis
patent: 4969341 (1990-11-01), Burk et al.
Jeffery John A.
Kaness Matthew A.
Maytag Corporation
LandOfFree
Belt tensioning system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Belt tensioning system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Belt tensioning system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-242690