PASSENGER CONVEYOR WITH A CHAIN/SPROCKET WHEEL DRIVE WITH LUBRICANT-FREE OPERATION

摘要

A passenger conveyor with a circulating tread surface which is driven by a chain (2) driven in turn by a sprocket wheel (4), where the chain (2) has chain link plates (6, 8) which are alternately attached to chain link pins (10) and to chain tubes (12) which can rotate around the chain link pins (10), and chain bushings (14) which can rotate around the chain tubes (12) and during operation engage the teeth (30) of the sprocket wheel (4), and where the chain (2) and the sprocket wheel (4) each have at least one contact area (16) where they engage each other, characterized in that at least one of the contact areas (16) is provided with plastic (18).