Device for damping the movement of a body at the end of travel
US8776963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/063
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention relates to devices for damping the movement of a body Co between two positions at the end of travel. The device according to the invention is essentially characterized in that it comprises two abutments B1, B2, a cylinder 10, a wall 11 closing off the end 12 of the cylinder 10, a piston 14 delimiting a chamber 16 with variable volume, a cylinder 20 with an external section at most equal to the internal section of the cylinder 10, a mounting unit for mounting the cylinder 20 in cooperation with the piston 14 so that the latter closes off the end 21 of this cylinder 20, a piston 24 delimiting a chamber 26 with variable volume, a first fluid Li filling the two chambers 16, 26, a communicating unit 30 for communication under pressure loss between the chambers 16, 26, an abutment 40 mounted in cooperation with the piston 24 so that this abutment 40 has a movement correlative with that of the piston 24, and a connecting unit 50 for connecting the cylinder 20 to the body Co. Application notably to the control for opening and closing an aircraft door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.