Drum washing machine
US7797971B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 14, 2005 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Dec 12, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F37/20
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drum washing machine has a suspension for supporting a water tub for vibration proof. The suspension includes a cylindrical bearing support, a pair of bearings fixed in the bearing support, a shaft supported on the bearings so that the shaft is linearly reciprocated, a cylindrical friction member damping an amplitude of the water tub and disposed between the bearings so as to be immovable relative to the bearing support, and a lubricant applied between the shaft and the friction member. The friction member has both ends formed with abutment slant faces having outer diameters gradually reduced toward distal ends respectively. A pair of holding members are located in the bearing support for holding the ends of the friction member. Gaps are defined between the friction member and the holding members respectively. A plurality of lubricant reservoirs are defined in the respective gaps to reserve the lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.