Liquid sealed damper for opening and closing member
US11773938B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 21, 2021 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | Feb 18, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2238/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed; an auxiliary liquid chamber having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has a substantially circular surface forming a wall portion of the main liquid chamber. An opening portion at one end of the orifice passage is formed in the circular surface. The opening portion is formed to extend from an outer edge portion to a central portion of the circular surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.