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US 2006/0137958 A1Published application
Conveyor idler with locking device for preventing reverse rotation
AssigneeRollerbrake (Proprietary) Ltd.
InventorBogdan Bogdanovic
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AssigneeRollerbrake (Proprietary) Ltd.
InventorBogdan Bogdanovic
Estimating the term…
A conveyor idler includes a drum having an outer surface and an inner surface, a shaft (24) about which the drum can rotate in a forward direction, a locking mechanism for preventing the drum from rotating in a reverse direction (R) but which locking mechanism permits rotation of the drum in the forward direction, the locking mechanism having at least one wedging surface (44) fixed directly or indirectly to the drum, and a locking member (38) interposed between the wedging surface and the shaft, the locking member being rotatable about the shaft when the drum rotates in the forward direction, but when an attempt is made to rotate the drum in the reverse direction the locking member becomes releasably wedged between the wedging surface and the shaft, or a surface fixed to the shaft, thereby preventing the drum from rotating in the reverse direction.
A conveyor idler including a drum having an outer surface and an inner surface, a shaft about which the drum can rotate in a forward direction, a locking mechanism for preventing the drum from rotating in a reverse direction but which locking mechanism permits rotation of the drum in the forward direction, the locking mechanism having at least one wedging surface fixed directly or indirectly to the drum, and a locking member interposed between the wedging surface and the shaft, the locking member being rotatable about the shaft when the drum rotates in the forward direction, but when an attempt is made to rotate the drum in the reverse direction the locking member becomes releasably wedged between the wedging surface and the shaft, or a surface fixed to the shaft, thereby preventing the drum from rotating in the reverse direction.
A locking mechanism for a conveyor idler for releasably locking a drum of the conveyor idler from rotating about a shaft in a reverse direction but which permits rotation of the drum in a forward direction about the shaft, the locking mechanism including a connecting means connecting a plurality of circumferentially spaced locking members together which locking members are in use located between wedging surfaces fixed to the drum so that in use when an attempt is made to rotate the drum in the reverse direction, the locking members will simultaneously become releasably wedged between the shaft and the wedging surfaces thereby preventing the drum from being rotated in the reverse direction.
An end cap for a conveyor idler including a receptacle for a plurality of circumferentially spaced locking members, the receptacle having a wedging surface for each locking member so that in use a drum of the conveyor idler to which the end cap is fixed can rotate in a forward direction but not in a reverse direction because the locking members become releasably wedged between their wedging surfaces and a shaft of the conveyor idler.
Dependencies are inferred from the claim text.