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US 5,072,821 AGranted
Escalator/people mover bearing
AssigneeOtis Elevator Company
InventorsMichael Kruse, Hans-Dietrich Riedel
Life of this patent
Estimating the term…
Abstract
An escalator or people mover having steps or pallets which are supported by axles that are driven by a step chain, utilize a split bearing disposed between the axle and the step or pallet. The split bearing allows for rapid replacement of a worn bearing. The split bearing has a shaped outer portion for cooperating with the step or pallet to prevent rotation of the bearing relative to the step.
Claims6
An assembly for mounting an escalator or people mover step or pallet to a drive chain, said assembly comprising:
- a shaped surface attaching to said step or pallet,
- an axle for rotatably supporting said step or pallet, said axle being received within said shaped surface, said axle attaching to and being driven by said drive chain, and
- a bearing disposed between said axle and said shaped surface, said bearing having;
- an internal bearing surface for supporting said axle,
- an external shape for cooperating with said shaped surface such that said bearing does not rotate relative to said shaped surface, and
- a first mating portion and a second mating portion, said first and second mating portions cooperating such that said bearing may be inserted between, and removed from between, said bearing surface and about said axle without detaching said axle from said chain.
3 more elements
Dependencies are inferred from the claim text.