| 摘要 |
A chair backrest comprises an inner frame, a net, and an outer frame. The inner frame is a hollow member and has an outer peripheral edge. The net is made of soft material and embraces the outer edge of the inner frame. The outer frame is a hollow member made of rigid material and includes a peripheral groove defined in a side thereof and extending along a periphery defining the outer frame. A bottom wall defining the peripheral groove includes a plurality of fastening holes. The outer peripheral edge of the inner frame and an outer peripheral edge of the net are received in the peripheral groove of the outer frame. Fasteners are respectively extended through the fastening holes and into the inner frame.
|
