Otis Elevator Company

Walter Srb-Gaffron

Alexander Turek

Jennifer Schneider

Philipp Schedl

Martin Michalke

Abdullah Ercan

Phillip Schedl

Rainer Stummer

Uwe Fritz

A polygon compensation coupling system for reducing a polygon effect in a chain driven system is disclosed. The polygon compensation coupling system may include a chain sprocket and a main drive in engagement with the chain sprocket, such that the engagement defines a compensation curve to reduce the polygon effect.

Polygon compensation coupling for chain and sprocket driven systems

A drive chain () for a chain drive comprises a plurality of chain links () and joints () respectively connecting two of the chain links () forming the drive chain (). The drive chain () further comprises a plurality of carrier elements (), each of said carrier elements () being linked to one of the chain links () or joints () and supporting at least two support/engagement elements (), which are configured for supporting the drive chain () and/or for engagement with an appropriate turnaround element () for driving the drive chain ().

Drive chain and drive chain mechanism and conveyor comprising such a drive chain mechanism

A truss section () which is configured to support at least one tread element in a passenger area () of a passenger conveyor () of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area () between a first landing and a second landing area, comprises at least two longitudinal elements () extending basically parallel to each other in the longitudinal direction; and a drawer mechanism () including at least one moveable portion (), which is slidable between an open position allowing access to a maintenance space of the conveyor () in the passenger area (), and a closed position in which the moveable portion () does not allow access to the maintenance space.

Truss construction for a passenger conveyor comprising a drawer mechanism

A truss section (), which is configured to support at least one tread element in a passenger area () of a passenger conveyor () of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area () between a first landing and a second landing, comprises at least two longitudinal elements () extending basically parallel to each other in the longitudinal direction; and at least one lateral connector () connecting the at least two longitudinal elements (). Each of the at least two longitudinal elements () includes at least one load-bearing portion () having the configuration of a single wall profile.

Truss construction for a passenger conveyor comprising a single wall profile

A polygon compensation coupling system () comprises a first rotatable element (), a second rotatable element (), and at least one linkage coupling the first rotatable element () with the second rotatable element (). The linkage comprises at least one first coupling element () pivotably coupled to the first rotatable element () and at least one second coupling element () pivotably coupled to the second rotatable element (). The first and second coupling elements () are pivotably coupled to each other at a hinge point, the hinge point is configured to move along a compensation curve varying the coupling between the first rotatable element () and the second rotatable element ().

Polygon compensation coupling system for chain and sprocket driven systems

A chain drive includes a chain configured to rotate in a closed loop forming a load track and a return track interconnected by first and second turnaround sections; a drive sprocket for driving the chain, the drive sprocket being located in the first turnaround section of the closed loop; and a polygon compensation system for compensating the polygon effect of the chain. At least one component of the polygon compensation system is located within at least one turnaround section.

Chain drive system with polygon compensation

A self-clamping handrail device includes a belt-handrail compound comprising a first belt, a second belt coupled to the first belt, and a handrail coupled to the second belt, a counter bar and a clamping frame configured to support the belt-handrail compound as the belt-handrail compound passes between the counter bar and the clamping frame, the clamping frame configured to move about a clamping curve based on a tension force applied to the handrail, and the first belt and the second belt applying a normal force to the handrail based at least in part on the tension force.

Self-clamping handrail drive

A passenger conveyor includes a plurality of pallets arranged to form a travel surface of the passenger conveyor. A first guide member extends from a first longitudinal end of the travel surface and is located at a first lateral side of the plurality of pallets, and a second guide member extends from the first longitudinal end and is located at a second lateral side of the plurality of pallets. A position of the second guide member is offset in a longitudinal direction along the travel surface relative to the first guide member. The first guide member and the second guide member are pivotably connected to the plurality of pallets to guide movement of the plurality of pallets.

Offset pallet guidance for passenger conveyor

A passenger conveyor assembly including a roller assembly having an axle member, a bearing member mounted to the axle member, and a roller member rotatably mounted to the bearing member. A seal assembly is mounted to the roller assembly. The seal assembly includes a rotating member mounted for rotation with the roller member and a stationary member fixedly mounted relative to axel member. The rotating member and stationary member cooperate to substantially prevent foreign objects from accumulating at one of the bearing member and the axle member.

Seal assembly for a bearing assembly

Lubrication systems for transport systems are disclosed that are powered by a rotating shaft of the transport system. The lubrication system includes at least one circular member mounted on the rotating shaft. The at least one circular member is coupled to and imparts rotation to a third circular member and separately to a fourth circular member for imparting rotation there to. The third circular member is coupled to a first linkage. The first linkage extends from the third circular member to a fifth circular member. The fourth circular member is coupled to a second linkage. The second linkage couples the fourth circular member to the first linkage between the third and fifth circular members. The fifth circular member is coupled to a pump shaft.

Growing community of inventors

Baden, Austria

Walter Srb-Gaffron