| 摘要(英文)： |
The invention discloses a rear seat frame, which comprises a back frame and a seat frame four-bar linkage mechanism, the seat frame four-bar linkage mechanism is composed of a seat frame support, the seat support, the seat frame front bracket of the rear bracket and a seat, the seat frame the front bracket by a horizontal connecting pipe and two left and right symmetrical arrangement of the main body; the front bracket, the front bracket body is a punch forming an arc-shaped plate, and the center of the arc-shaped plate located in front of the arc-shaped plate, the horizontal connecting pipe perpendicular to the nose, the arc-shaped plate is arranged at the front end of the bending part of the vertically extending within, and the bending part is provided with a and the horizontal connecting tube end head matching semi- wraps, the horizontal connecting pipe the left and the right ends of the front side are respectively placed in the corresponding semi-wrapping part of the body of the support and then being welded and fixed, is arranged on the rear end of the arc-shaped plate to the vertically extending within the folded edge. The connection is firm, reliable strength, light weight, simple process, low cost, and the riding comfort is high. |
