Washing machine and drying machine
US9359705B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 25, 2012 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Feb 28, 2035 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2105/46
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A washing machine includes a vibration damping device located in an outer casing for damping vibration of a tub using a cylinder enclosing an operating fluid including a functional fluid such as a magnetic viscous fluid changing a viscosity when an electrical energy is applied to the fluid. The vibration damping device includes the cylinder, a shaft inserted into the cylinder, a coil disposed in the cylinder, two yokes disposed between the cylinder and the shaft so as to be located at both axial sides of the coil respectively, the yokes forming a magnetic circuit together with the shaft and cylinder, a sealing member disposed axially outside one of the yokes in the cylinder to seal the operating fluid, and two bearings located axially outside the respective yokes in the cylinder to support the shaft so that the shaft is axially reciprocable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.