| 摘要 |
<p>The outside length of the rear wall (3) is greater than that of the front wall (2) and each side wall (4) has a shoulder (5), whose width (s/2) is one half of the side wall thickness (9). Two stops (6) protrude upwardly from the rear wall top with min. spacing of the rear wall inner length (li). Pref. both stops are prismatic and mirror-symmetrically shaped w.r.t the rear wall symmetry axis. The stops protrude over the rear wall outer surface. The contour of the facing sides of the stops corresponds to the contour of the side wall inner sides in transition to the rear wall.</p> |
