Door lock device for washing machine and method of locking washing machine door
US10829881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/702
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure provides a door lock device for releasably locking a door of a washing machine. The door lock device has first to third latches, and a drive motor and a latch drive mechanism for moving the third latch. The first latch releasably locks the door of the washing machine and is movable in frontward and rearward directions. The movement of the first latch is changed at a change position. The first latch is always biased frontward by a spring. The second latch releasably locks the first latch, which locks the door of the washing machine, at a door locking position. The third latch is moved in a direction perpendicular to the movement direction of the first latch. The third latch restricts the first latch at the door locking position, or unlocks the first latch after pushing the first latch from the door locking position against the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.