| 摘要 |
The purpose of the present invention is to provide a seat bracket for an articulated chair. The articulated chair (2) comprises: a plurality of leg frames (4) arranged erectly to be fixed on the ground at a position for installing an articulated chair (2); a back of the chair (5) arranged at the rear position of a pair of the adjacent leg frames (4) among the leg frames (4); and a seat (6) having a rotating supporting axis (7) at both ends combined between the leg frames to be able to rotate relatively and rotating vertically at the front position of the back of the chair. The articulated chair comprises: a main bracket body (20) included in the leg frames (4) to support the rotating supporting axis (7) of the seat (6) from downside; and a cover member (26) fixed to the leg frames (4) while combined with the upper part of the main bracket body (20) to support the rotating supporting part (7) of the seat (6) from upside, thereby forming an axis-supporting hole (22) for rotating the rotating supporting axis (7) relatively between the main bracket body (20) and the cover member (26). An inner circumference surface in contact with the outer circumference surface of the rotating supporting axis (7) of the axis-supporting hole (22) is composed to be a curved surface part (29) so that the rotating supporting axis (7) of the seat (6) can rotate smoothly in the axis-supporting hole (22) when the articulated chair (2) is installed to be combined curvedly. |
