| 摘要 |
A backrest translation mechanism (1) includes a holder (10) mounted on a sofa seat, a swing locating member (11), a backrest mount (12), a slider (13), and a positioning pin (15). The swing locating member (11) has a first end pivoted on the holder (10), several locking slots (112) with downward openings arranged at regular intervals along its length direction. The locking slots (112) are adapted for engaging with and unidirectionally locked up the positioning pin (15), one side of each locking slots (112) is provided with an inclined surface inclined towards an opposite direction of the first end. The slider (13) is slidably set on the swing locating member (11) and has a retaining slot (131) and a limiting slot (132). The positioning pin (15) is accepted by the retaining slot (131) and the locking slot (112) jointly, and the positioning pin (15) is restricted to be out of the locking slot (112) by the retaining slot (131). The mechanism (1) has multiple using positions for adjusting the translation of the backrest. |
