| 摘要 |
A chair includes a body portion and a leg support portion coupled to the body portion by a removable and adjustable joint that includes first and second halves respectively attached to the leg support portion and the body portion in a removable manner. The first half is rotatable with respect to the second half between first and second positions whereby the leg support portion is movable with respect to the body portion between a regular position and a special support position. Thus, the leg support portion may assume stable physical engagement with an irregular fixture surface and can also be raised for supporting legs of a sitter on a raised position. Further, in case the chair body is adjustable, which changes the relative position between the leg support portion and the chair body portion, the adjustability of the joint allows the leg support portion to regain stable engagement with the fixture surface.
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