摘要 |
<p>The shield (1) has two mutually displaceable rod-like elements (2,4,6) having a common longitudinal axis (L), and a roof-like element, which is formed by free ends of multiple longitudinal struts (14a,14b). The other ends of the longitudinal struts diverge radially and are arranged in a central region (12) in an articulated manner. The central region is movable in the direction of the longitudinal axis of the rod-like elements.</p> |