Operator assembly for movable barrier
The invention provides an operator assembly for a movable barrier comprising a roller closure, the roller closure mounted on a rotating carrier assembly, the operator assembly including a motor with a motor output shaft, an output drive to transfer drive to the movable barrier, and a transmission as...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention provides an operator assembly for a movable barrier comprising a roller closure, the roller closure mounted on a rotating carrier assembly, the operator assembly including a motor with a motor output shaft, an output drive to transfer drive to the movable barrier, and a transmission assembly to transfer drive from the motor output shaft to the output drive, the output drive rotatable in a clockwise direction and in a counterclockwise direction, depending on whether the movable barrier is closing or opening, wherein the output drive comprises a rotating crown wheel with an outer face carrying a plurality of shaped attachment portions, each attachment portion configured to receive an output drive extension element to engage with a drum wheel comprised in said rotating carrier assembly, the operator assembly including at least one first output drive extension element of a first size and shape and at least one second output drive extension element of a second, different size and shape, each first and second output drive extension element comprising a base portion and an elongated extension portion, the base portion sized and shaped to be received by one or more of said rotating crown wheel outer face shaped attachment portions, such that selection of the at least one first output drive extension element for attachment to the rotating crown wheel or the at least one second output drive extension element for attachment to the rotating crown wheel is made in accordance with one or more physical characteristics of the particular drum wheel of the rotating carrier assembly. CoN N coJ CYa) CY0) CYa) CN cN |
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