Elevator and traction sheave of an elevator

Details Elevator and traction sheave of an elevator Elevator and traction sheave of an elevator

B - Operations, Transporting

66

B

B66B 15/04 (2006.01) B66B 7/06 (2006.01) D07B 1/06 (2006.01)

Patent

CA 2427361

A counterweight and an elevator car are suspended on a set of hoisting ropes. The elevator comprises one or more rope pulleys provided with rope grooves, one of said pulleys being a traction sheave driven by a drive machine and moving the set of hoisting ropes. At least one of the rope pulleys is provided with a coating bonded to the rope pulley and containing the rope grooves, said coating having a thickness that, at the bottom of the rope groove, is substantially less than half the thickness of the rope running in the rope groove and a hardness less than about 100 shoreA and greater than about 60 shoreA. In a preferred solution, the traction sheave is a rope pulley like this.

Le contrepoids et la cage d'un ascenseur sont suspendus à un ensemble de câbles de traction. L'ascenseur comprend une ou plusieurs poulies à gorge où passent les câbles, dont une poulie motrice entraînée par la machinerie qui met en mouvement les câbles de traction. L'une au moins de ces poulies est munie d'une surépaisseur collée au corps de la poulie où sont formées les gorges de la poulie. Ladite surépaisseur, qui présente une épaisseur telle que le fond de la gorge soit sensiblement moindre que la demi-épaisseur du câble passant dans la gorge, présente une dureté de moins d'environ 100 ShoreA et de plus d'environ 60 ShoreA. Dans la solution préférée, la poulie motrice est du susdit type.

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