Refrigerator
US11435134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2019 |
| Grant date | Sep 6, 2022 |
| Priority date | — |
| Expiry date | Aug 28, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H1/18
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A refrigerator includes a cabinet having a storage space; a door including a door unit to open or close the storage space and a drawer unit to provide a receiving space; rails to connect the door and the cabinet to through which the door is drawn in or out of the cabinet; a driving device disposed at the door unit to provide power; and an elevation device disposed at the drawer unit and connected with the driving device to move up or down at the drawer unit. The driving device includes: a motor assembly; a screw unit including a screw to be rotated by the motor assembly and a screw holder to move up or down along the screw; and a lever to connect the screw holder and the elevation device and rotate when the screw holder moves up or down. The motor assembly includes: a driving motor; and a power transmission unit to transmit power from the motor to the screw unit, and the screw is disposed to be inclined with respect to a vertical line passing in a top-bottom direction of the refrigerator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.