Variable width automatic transition

US10253461B2 · kind B2 · utility

Assignee

• Wirtgen GmbH

Inventors

• Michael Engels · Montabaur, DE
• Martin Lenz · Graz, AT
• Cyrus Barimani · Rübhausen, DE

Key dates

• Filing date: Dec 7, 2016
• Grant date: Apr 9, 2019
• Expiry date: Dec 7, 2036

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01C2301/18
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A system for automatically varying the mold width and thus the paving width of a molded concrete slab on the fly as the slab is being molded. An external stringline reference is used to control the height and direction of a first side of the paving machine. A slope sensor is used for automatic control of the height of the second side of the machine frame. A starting point signal generator provides a signal to initiate the automatic width transition. A controller controls width actuators for controlled variation of the mold width in response to the starting signal and a pre-programmed function of the controller.