| 摘要 |
A mechanism for the relative positioning of chair arm comprises a shroud including a first opening, a second opening, and a top plate; a supporting member disposed within the shroud including a notched cavity; a shuttle member disposed between the shroud and the supporting member comprising a vertical member having a slanted slot, a top horizontal member having a riser, a spring disposed on the riser being biased between the top horizontal member and the top plate, and a trigger button disposed on the top horizontal member; and a lock pin for slidably securing the slanted slot, the first opening, and the cavity together. Raising the trigger button will cause the lock pin to slide along the cavity and release of the trigger button will cause the lock pin to lock in the cavity.
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