| 摘要 |
An adjustable armrest or humeral junture support for use with a chair having a seat and a reclining back. The armrest includes a first rail member attached to the side of the chair back, and a second rail member attached to the side of chair seat. Also, a first sliding member is coupled to the first rail member for sliding along the first rail member and with a locking structure for locking the first sliding member along the first rail member. A second sliding member is coupled to the second rail member for sliding along the second rail member and with a locking structure for locking the second sliding member along the second rail member. An armrest is located adjacent the side of the chair and has a front attachment portion and a back attachment portion and has the back attachment portion of the armrest pivotably attached to the first sliding member for rotational movement about the first sliding member. A pivot link has one end pivotably attached to the front attachment portion and has the other end pivotably attached to the second sliding member for rotational movement about the second sliding member and armrest.
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