Patent ID: 7686152
Filing Date: 2010-03-30
Classification: B66B

Abstract:
1. A drive system for moving walkways and stairs by means of horizontal drive chains, comprising a drive actuation mechanism and drive chains responsible for causing the movement of the plates of the walkway or steps of the stairs, wherein the drive chains and the pallets or steps have direct mutual engagement means, which are opposite and coupled to one another along at least a straight section of the path of the belt or stairs; the means of which consist of deformable rollers which are assembled in the links of the drive chain and engage in complementary cavities that the plates or steps have at the back part; the rollers of the drive chain running in a position opposite to the cavities of the pallets or steps along the mentioned straight section of the path of the belt or chain and penetrating said cavities to define the engagement means between the drive chain and the belt or stairs.