Door component comprising a controllable damper device
US10480237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A door component has a controllable damper device that contains a magnetorheological fluid as a working fluid. Two connection units of the damper device can be moved relative to each other. One of the two connection units can be connected to a support structure, and the other connection unit can be connected to a pivotal door device in order to damp a movement of the door device between a closed position and an open position in a controlled manner. The magnetorheological damper device has a piston unit and a cylinder unit which surrounds the piston unit. The piston unit divides a cylinder volume into two chambers. The piston unit has a first piston rod, which extends through the first chamber, and a second piston rod, which extends through the second chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.