| 摘要 |
To allow shifting of a bracket (32) along a roof so that the bracket's position matches the overlap area between two roofing shingles, preferably two parallel rails (14, 15) are attached perpendicular to a roof beam (1). The rails have a profile such that when shifted the bracket is directed by the rails and lockable to the same in a chosen shift position. For locking and orientation, a sliding but fixed nut (29) works together with a bolt (34) in the appropriate profile.<IMAGE> |
