초록 ▼

In a factory prefabricated drive system conversion unit for the handrail of an existing escalator, the drive system conversion unit includes a channel member adapted to be fixedly connected to an existing escalator structure, with a rotatable friction wheel being mounted between the channels and dri

In a factory prefabricated drive system conversion unit for the handrail of an existing escalator, the drive system conversion unit includes a channel member adapted to be fixedly connected to an existing escalator structure, with a rotatable friction wheel being mounted between the channels and driven via a chain drive, having a plurality of pressing rollers, and a lever-operated tensioning device, with a set of cluster rollers, having a plurality of rollers, being mounted on a cluster roller base plate arranged on each side of the friction wheel, and also including a handrail turn around with a clamped roller chain having a plurality of both roller and chain links, as well as end pieces and intermediate guide members. Directionless cluster roller bases as well as directionless channels can also be utilized to simplify and speed up the conversion operation.

대표청구항 ▼

A factory prefabricated drive system conversion unit for the handrail of an existing escalator, the drive conversion unit comprising: a channel member adapted to be fixedly mechanically connected to an existing escalator structure; a rotatable friction wheel mounted on the channel member and driven

A factory prefabricated drive system conversion unit for the handrail of an existing escalator, the drive conversion unit comprising: a channel member adapted to be fixedly mechanically connected to an existing escalator structure; a rotatable friction wheel mounted on the channel member and driven via a chain drive; a roller chain, having a plurality of pressing rollers, and a lever-operated tensioning device; a set of cluster rollers, having a plurality of rollers, mounted on a cluster roller base plate arranged on each side of the friction wheel, wherein the set of cluster rollers are pivotable about a pivot axis and affixable via retention screws passing through elongated apertures in the cluster roll base plates, wherein the pivot axis is coincident with the axis of a cluster roll, of the plurality of cluster rollers, most closely adjacent to the axis of the friction wheel; and a handrail turn around secured at each end of the existing escalator, the handrail turn around including a clamped roller chain having a plurality of both roller and chain links, as well as end pieces and intermediate guide members.