| 摘要 |
A lawn umbrella having a substantially square shaped shade, the opposed corners of which are secured to respective first and second struts. A first of the struts has an outwardly bowed configuration to tense the shade and is positioned within a sleeve at the top of a rotatable mast. The second strut has an inwardly bowed configuration and is positioned within a slideway on the mast below the top. The inclination of the shade may be varied merely by moving the second strut within the slideway.
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