Patent · US Active

System for opening and closing a flap

US9394738B2 · kind B2 · utility

2Cited by

19References

20Claims

0Family size

Assignee

Stabilus GmbH · DE

Inventors

Marian Bochen · Eitelborn, DE
Frank Doffing · Kastellaun, DE
Rolf Mintgen · Peitz - Picnjo, DE
Thomas H. Reif · Kobern-Gondorf, DE

Key dates

Filing date	Feb 25, 2014
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Feb 25, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/546
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A system for opening and closing a motor vehicle, the flap is swivalably mounted along one of its edge areas at a stationary structural component part about a horizontal swiveling axis. A first drive device and a second drive device act in parallel to more like flap from a closed position into an open position. The first drive device is a non-self-locking drive device, and the second drive device comprises a cylinder filled with a fluid under pressure. An interior of the second drive device is divided by a piston into a first work chamber and a second work chamber, wherein a piston rod of the piston is guided outward through the first work chamber. A valve arrangement in the piston closes a flow connection between the first work chamber and the second work chamber in a stationary operating state of the flap.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.