Chain drive for a people conveyor
AssigneeOtis Elevator Company
InventorAlexander Turek
Life of this patent
Estimating the term…
Abstract
A chain drive (10) for a people conveyor (1) having a plurality of conveyance elements (4) comprises a drive chain (12) which is configured for driving the conveyance elements (4). The drive chain (12) includes a plurality of drive chain links (16) traveling along a closed path including a conveyance portion (5) and a return portion (7). The drive chain (12) further includes a plurality of linkages (42). Each linkage (42) is configured for coupling the drive chain (12) with one of the plurality of conveyance elements (4). The length of each linkage (42) along the path of the drive chain (12) is variable.
Claims14
Chain drive for a people conveyor having a plurality of conveyance elements, the chain drive comprising
- a drive chain configured for driving the conveyance elements, the drive chain comprising a plurality of drive chain links traveling along a closed path including a conveyance portion and a return portion;
- and a plurality of linkages;
- wherein each linkage is configured for coupling the drive chain with one of the plurality of conveyance elements;
- and
- wherein the length of each of the linkages along the path of the drive chain is variable;
- wherein each linkage comprises:
- a first linkage element having a first end pivotably connected to the drive chain;
- and
- a second linkage element comprising a first end, which is pivotably connected to a second end of the first linkage element by a joint, and a second end, which is pivotably connected to one of the conveyance elements.
Chain drive for a people conveyor having a plurality of conveyance elements, the chain drive comprising
- a drive chain configured for driving the conveyance elements, the drive chain comprising a plurality of drive chain links traveling along a closed path including a conveyance portion and a return portion and a plurality of linkages;
- wherein each linkage is configured for coupling the drive chain with one of the plurality of conveyance elements;
- wherein the length of each of the linkages along the path of the drive chain is variable;
- and
- a plurality of drive chain rollers which are coupled to the drive chain and which are guided by at least one drive chain roller guide rail.
Chain drive for a people conveyor having a plurality of conveyance elements, the chain drive comprising
- a drive chain configured for driving the conveyance elements, the drive chain comprising a plurality of drive chain links traveling along a closed path including a conveyance portion and a return portion and a plurality of linkages;
- wherein each linkage is configured for coupling the drive chain with one of the plurality of conveyance elements;
- wherein the length of each of the linkages along the path of the drive chain is variable;
- step axles coupled to the second ends of the second linkage elements, wherein the step axles are configured for supporting the conveyance elements;
- and
- conveyance element rollers supported by the conveyance element axles.
People conveyor comprising a plurality of conveyance elements forming a conveyance band and at least one chain drive, the chain drive comprising:
- a drive chain configured for driving the conveyance elements, the drive chain comprising a plurality of drive chain links traveling along a closed path including a conveyance portion and a return portion and a plurality of linkages;
- wherein each linkage is configured for coupling the drive chain with one of the plurality of conveyance elements;
- and
- wherein the length of each of the linkages along the path of the drive chain is variable;
- wherein the conveyance elements are bucket steps.
Dependencies are inferred from the claim text.