Handrail drive for a passenger conveyor

US5755315A · kind A · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Knuth Wallbaum · Wunstorf, DE
• Jorg Ostermeier · Stadthagen, DE
• Kurt Pietsch · Minden, DE

Key dates

• Filing date: Jun 30, 1995
• Grant date: May 26, 1998
• Expiry date: Jun 30, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B23/04
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A handrail drive for a passenger conveyor includes a drive belt that does not encompass either the main drive shaft or the handrail drive shaft. In a particular embodiment, the drive belt includes a plurality of outwardly extending teeth and is formed from a reinforced elastomeric material. The teeth are engaged with complementary toothed extensions on the main and handrail drive shafts. Two pair of deflection rollers maintain contact between the drive belt and drive shafts and an adjustable spring maintains tension in the drive belt.