Telescopic arm with a push-pull chain drive

US10139041B2 · kind B2 · utility

Assignee

• Paul Vahle GmbH & Co. KG · DE

Inventors

• Michael Raabe · Werne, DE
• Werner VAHLE · Plombières, BE
• Thomas Müller · Langendorf, CH
• Steffen Woyczechowski · Dortmund, DE
• Michael Heitmann · Kamen, DE
• Micro Husarek · Bergkamen, DE

Key dates

• Filing date: Mar 17, 2015
• Grant date: Nov 27, 2018
• Expiry date: Sep 17, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02G11/00
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a telescopic arm (1), in particular, for a current collector system for a vehicle which can be driven along a power rail arrangement, wherein the telescopic arm (1) can be extended and/or retracted by means of an adjustment drive (7, 8, 9, 10) and the telescopic arm (1) has a base unit (2) which can be attached to the vehicle, on which a first telescopic stage (3) is arranged displaceably in a direction (RT), in particular, horizontally, and a second telescopic stage (4) is arranged displaceably on the first telescopic stage (3) in the same direction (RT), wherein the adjustment drive (7, 8, 9, 10) is arranged on the first telescopic stage (3), characterized in that the adjustment drive (7, 8, 9, 10) interacts with a rigid chain (S), which is connected with its one end (Sa) to the base unit (2) and with its other end (Sb) to the second telescopic stage (4).