Chain block

US6964409B2 · kind B2 · utility

Assignee

• Demag Cranes & Components GmbH · DE

Inventors

• Erik Appel · Wetter, DE
• Ralf Eising · Bochum, DE
• Jurgen Heun · Dortmund, DE
• Jörg Lindemaier · Dortmund, DE
• Oliver Moll · Solingen, DE
• Klaus Wissing · Pleisweiler-Oberhofen, DE
• Thilo Walloschek · Gevelsberg, DE
• Rudiger Ostholt · Wetter, DE

Key dates

• Filing date: Sep 22, 2003
• Grant date: Nov 15, 2005
• Expiry date: Sep 22, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66D3/22
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A chain block with a drive motor (2) and with a transmission (3), connected to the drive motor (2) at the take-off side, with a transmission output shaft (4), on which a chain wheel (5) is rigidly arranged for pulling a chain. In order to create a compact chain block, the chain wheel (5) faces the drive motor (2) at its take-off end face (19) and the outer circumference of the chain wheel (5) reaches into the imaginary extension of the outer contour of the drive motor (2).