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 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 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, 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 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 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) 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 (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 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).