| 摘要 |
The device has a rectangular frame (R) including two bars (1, 2) that are arranged opposite to each other. A fastening element (6) for fastening one bar is provided at an upper side (O) of a support strip (5) of each of two support mechanisms (S1, S2). A support (7) is pivotably attached to the support strip in a predefined distance from the fastening element. Another fastening element for fastening the other bar is provided at a free end of the support. The support is formed according to a type of a U-profile that includes a profile base section and two shanks. |
