Animal shed U:shaped metal doorframe - has profiled inlay enclosing box profiled with deformed sections holding door planking

摘要

The door, esp. suitable for an animal shed, has a Z-shaped metal stock frame and monolithic U-shaped metal door frame (2), with a cross arm piece contacting against this at two points, the door filling being attached between this frame's shanks (as in 2431399). The profile unit is in the form of a profiled inlay (4), enclosing the box profile (2). It has deformed pieces (6-11) on its lateral borders, to hold the filler planks (12, 13). A pre-stressing device (14), pref. a spring or unit made of elastically resilient material, is fitted between the inlay and the box profile.