To prevent the concentration on the stress to a specified part of a bearing for supporting an air fan when rotating a drum at a high speed in a drum type washing machine attached with the air fan to a water tub through a bearing.
A drying fan is rotated in a dewatering process for rotating a drum at a high speed as one of washing process. Condition of a bearing for supporting the air fan is changed by rotating the air fan, practically, positional relation between each ball of a ball bearing and an outer wheel and an inner wheel is changed, and even if the exciting force generated by the high- speed rotation of the drum is applied to the air fan through a water tub, concentration of the stress to a specified part of the bearing is prevented, and while a lock of the oil film is prevented.
| JPH04125881 | [Title of the device] Laundry unit |
| JPH0713676 | [Name of device] Vibration suppression device for home laundry |
| WO/2007/135784 | WASHING MACHINE |
IOKU TATSUO
SHIGA TAKESHI
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