Patent ID: 7086120
Filing Date: 2006-08-08
Classification: B60B,Y10T

Abstract:
1. A caster for shopping and transport trolleys which are suitable for conveyance on travelators, the caster comprising: a wheel fork provided with fork arms; a hub arranged between the fork arms; an axle body having a round cross-section and extending through the hub so that the axle body is carried by the fork arms; two running wheels mounted on the hub; the hub having a crosspiece arranged between the running wheels and the outer contour of the crosspiece having a geometrical shape; at least one support arranged on at least one of the two fork arms and adapted to support the caster when the running wheels are located respectively in grooves separated by bridge pieces of a conveyor belt of a travelator; wherein, a lowermost boundary of the crosspiece of the hub is arranged higher than a contact surface of the at least one support.