| 摘要 |
A folding chair including a seat frame, a leg frame hinged to the seat frame, a hinge mechanism between the seat frame and the leg frame, a quick-release locking mechanism for releasably locking the seat frame with respect to the leg frame, and a supplemental locking mechanism including an orifice in one of the seat frame and the leg frame, an opening in the hinge mechanism aligned with the orifice when the chair is unfolded, and a fastener extending through the opening in the hinge mechanism and into the orifice to secure the seat frame to the leg frame. |
