| 摘要 |
A shelf device with two rectangular top boards 1 horizontally arranged side by side on top of a frame structure formed by at least three vertical 2 and two horizontal frame members 3. Each vertical frame member has a plurality of horizontal beams and each horizontal frame member has its two shorter edges hinged to the horizontal beams of two vertical frame members. The vertical frame members each have a first tubular member which engages with a second tubular member situated in an indentation on one edge of each horizontal frame member to form a hinge mechanism (Figure 2 and 3). The shelf device can be collapsed by lifting a handle 23 on the top edge of the middle vertical frame member and the top board and frame structure at the two sides of the shelf device are automatically closed towards each other. The hinge structure may have a resilient member, preferably a spring and two pins (Figures 2 and 3). |
