Driving device

US8156838B2 · kind B2 · utility

Assignee

• Stabilus GmbH · DE

Inventors

• Oleg Batosky · Lahnstein, DE
• Timo Frieb-Preis · Münstermaifeld, DE
• Jörg Hillen · Nörtershausen, DE
• Peter Kohns · Vallendar, DE

Key dates

• Filing date: Feb 11, 2009
• Grant date: Apr 17, 2012
• Expiry date: Jan 12, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2186
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A driving device for a hatch in a motor vehicle includes a first fastening element which can be connected to a stationary structural component, a second fastening element which can be connected to a movable structural component, a spindle drive including a threaded spindle having an axis of rotation and a spindle nut arranged on the threaded spindle, and a rotary drive having a driveshaft for rotating spindle to move the first fastening element axially relative to the second fastening element. A stroke detection sensor for continuously detecting the position of the movable structural component includes a rotatable sensor element driven in rotation by the driveshaft and a stationary sensor element for continuously detecting the rotational position of the rotatable sensor element. A gear reduction unit is provided between the driveshaft and the rotatable sensor element so the revolutions of the sensor element are reduced by about 14:1.