Roof lean-to ladder

摘要

Roof lean-to ladder, of which the ladder strings (1, 2) and ladder rungs (4) consist of laminated wood, glued in a water-resistant manner, and each have a flat solid-rectangle profile lying in the plane of the ladder, the ladder rungs (4) being bent in their longitudinal direction such that they each form a bridge which connects the ladder strings (1, 2) to one another, rises over the plane thereof and has a central part running parallel to the plane of the ladder. They are connected non-releasably to the ladder strings (1, 2) by rivets (5) and in each case one water-resistant layer of glue. In the ladder strings (1, 2), in a longitudinal direction thereof, in each case at least one flexible metal insertion (3, 3a) is fixedly arranged between the wooden layers. <IMAGE>