| 摘要 |
A covering system (100) provides a retractable covering for a structure (102) such as a pergola or a veranda. The system has a roof portion (103) that is normally open to the environment, and includes a substantially cylindrical shaft (104) having a central longitudinal axis (106) and a motor (108) with which the cylindrical shaft is engaged such that, in use, the motor is operable to rotate the shaft about the longitudinal axis. The motor is operably engaged with a guide disposed upon or adjacent to the roof portion of the structure, whereby the motor is able to move transversely relative to the roof portion along the guide in a direction perpendicular to the longitudinal axis of the shaft. A web of flexible material (114), a first edge (116) of which is fixed to the structure, has an opposing edge which is fixed to the cylindrical shaft. The covering system has an open position wherein the web of flexible material is unrolled from the shaft to substantially cover the roof portion of the structure, and is operable between the open and closed positions by operation of the motor in corresponding opposed rotational directions.
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