Abstract: 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.

Abstract: A drive chain (2a, 2b) for a chain drive comprises a plurality of chain links (10, 20) and joints (30) respectively connecting two of the chain links (10, 20) forming the drive chain (2a, 2b). The drive chain (2a, 2b) further comprises a plurality of carrier elements (40), each of said carrier elements (40) being linked to one of the chain links (10, 20) or joints (30) and supporting at least two support/engagement elements (43, 44), which are configured for supporting the drive chain (2a, 2b) and/or for engagement with an appropriate turnaround element (50; 90) for driving the drive chain (2a, 2b).

Abstract: A truss section (2) which is configured to support at least one tread element in a passenger area (30) of a passenger conveyor (15) of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area (30) between a first landing and a second landing area, comprises at least two longitudinal elements (5a, 5b) extending basically parallel to each other in the longitudinal direction; and a drawer mechanism (19) including at least one moveable portion (11, 12, 13), which is slidable between an open position allowing access to a maintenance space of the conveyor (15) in the passenger area (30), and a closed position in which the moveable portion (11, 12, 13) does not allow access to the maintenance space.

Abstract: A truss section (2, 3, 4), which is configured to support at least one tread element in a passenger area (30) of a passenger conveyor (15) of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area (30) between a first landing and a second landing, comprises at least two longitudinal elements (5a, 5b) extending basically parallel to each other in the longitudinal direction; and at least one lateral connector (6) connecting the at least two longitudinal elements (5a, 5b). Each of the at least two longitudinal elements (5a, 5b) includes at least one load-bearing portion (51, 52, 53) having the configuration of a single wall profile.

Abstract: A polygon compensation coupling system (30; 40; 60) comprises a first rotatable element (31; 41; 61), a second rotatable element (32; 42; 62a, 62b), and at least one linkage coupling the first rotatable element (31; 41; 61) with the second rotatable element (32; 42; 62a, 62b). The linkage comprises at least one first coupling element (34a; 44a; 64a) pivotably coupled to the first rotatable element (31; 41; 61) and at least one second coupling element (34b; 44b; 64b) pivotably coupled to the second rotatable element (32; 42; 62b). The first and second coupling elements (34a, 34b; 44a, 44b; 64a, 64b) 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 (34a; 44a; 64a) and the second rotatable element (32; 42; 62b).

Abstract: A drive chain (2a, 2b) for a chain drive comprises a plurality of chain links (10, 20) and joints (30) respectively connecting two of the chain links (10, 20) forming the drive chain (2a, 2b). The drive chain (2a, 2b) further comprises a plurality of carrier elements (40), each of said carrier elements (40) being linked to one of the chain links (10, 20) or joints (30) and supporting at least two support/engagement elements (43, 44), which are configured for supporting the drive chain (2a, 2b) and/or for engagement with an appropriate turnaround element (50; 90) for driving the drive chain (2a, 2b).

Abstract: A truss section (2, 3, 4), which is configured to support at least one tread element in a passenger area (30) of a passenger conveyor (15) of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area (30) between a first landing and a second landing, comprises at least two longitudinal elements (5a, 5b) extending basically parallel to each other in the longitudinal direction; and at least one lateral connector (6) connecting the at least two longitudinal elements (5a, 5b). Each of the at least two longitudinal elements (5a, 5b) includes at least one load-bearing portion (51, 52, 53) having the configuration of a single wall profile.

Abstract: A truss section (2) which is configured to support at least one tread element in a passenger area (30) of a passenger conveyor (15) of the type conveying passengers by moving the at least one tread element in a longitudinal direction along the passenger area (30) between a first landing and a second landing area, comprises at least two longitudinal elements (5a, 5b) extending basically parallel to each other in the longitudinal direction; and a drawer mechanism (19) including at least one moveable portion (11, 12, 13), which is slidable between an open position allowing access to a maintenance space of the conveyor (15) in the passenger area (30), and a closed position in which the moveable portion (11, 12, 13) does not allow access to the maintenance space.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A chain drive (1) comprises a chain (5) configured to rotate in a closed loop (6) forming a load track (7) and a return track (8) interconnected by first and second turnaround sections (9, 10); a drive sprocket (12) for driving the chain (5), the drive sprocket (12) being located in the first turnaround section (9) of the closed loop (6); and a polygon compensation system for compensating the polygon effect of the chain (5). At least one component (2, 4, 14, 26) of the polygon compensation system is located within at least one turnaround section (10) and/or in at least one of the load track (7) and the return track (8) .

Abstract: A polygon compensation coupling system (30; 40; 60) comprises a first rotatable element (31; 41; 61), a second rotatable element (32; 42; 62a, 62b), and at least one linkage coupling the first rotatable element (31; 41; 61) with the second rotatable element (32; 42; 62a, 62b). The linkage comprises at least one first coupling element (34a; 44a; 64a) pivotably coupled to the first rotatable element (31; 41; 61) and at least one second coupling element (34b; 44b; 64b) pivotably coupled to the second rotatable element (32; 42; 62b). The first and second coupling elements (34a, 34b; 44a, 44b; 64a, 64b) 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 (34a; 44a; 64a) and the second rotatable element (32; 42; 62b).

Abstract: Embodiments are directed to a self-clamping handrail device comprising: 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.

Abstract: 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.

Abstract: 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.

Abstract: A passenger conveyor with reduced pallet travel height is disclosed. The moving walkway generally includes a chain track and a pallet track separate from the chain track, a drive chain movably disposed in the chain track, and a plurality of pallets coupled to the pallet track. Each of the pallets may be movably connected to the drive chain and the drive chain may travel at a different velocity than the plurality of pallets in a portion of the passenger conveyor. Methods for reducing distance between passenger and return portions of an endless series of pallets are also disclosed.

Abstract: 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.