| 摘要 |
PURPOSE: An arm-rest control device for a chair, and the chair including thereof are provided to enable users to adjust the width between two arm-rests by the physique of a user. CONSTITUTION: An arm-rest control device for a chair includes fixing hinge shafts(111), L-shaped arm rests(220), a driving hinge(300), and a driving hinge fixing unit(400). The two fixing hinge shafts are horizontally and separately installed on a rotation base surface on the lower both sides of a chair seat. The left and right L-shaped arm rests are hinge-connected to the fixing hinge shafts to rotate around the rotation base surface. The driving hinge provides a foldable link connection. The driving hinge fixing unit fixes the driving hinge to the lower side of the chair seat. |
