초록 ▼

The connection between the ladder side rail (3) and the hinge arm (2) is performed through a form-matching and/or force-matching joining connection (F.sub.N, F.sub.V) in the corner regions (5, 6) of the profile of the hinge arms (2) and of the ladder side rails (3) and/or in their profile sides (2.2

The connection between the ladder side rail (3) and the hinge arm (2) is performed through a form-matching and/or force-matching joining connection (F.sub.N, F.sub.V) in the corner regions (5, 6) of the profile of the hinge arms (2) and of the ladder side rails (3) and/or in their profile sides (2.2, 3.2), which are disposed substantially parallel to the hinge axis (AG). An optimum force transfer from the ladder side rail (3) to the hinged arm (2) is assured based on the novel arrangement of the joining connection (F.sub.N) and (F.sub.V). A deformation of the ends of the ladder side rail (3), which ends are connected to the hinged arms (2), is nearly excluded. A simple, economic, and at the same time reliable connection is created in particular by the production of the joining connection (F.sub.V) with a suitable deformation method.

대표청구항 ▼

[ What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:] [1.] A connection between a ladder side rail and a hinged arm of a ladder hinge comprisinga ladder hinge having an axis;a ladder side rail having a tubular structure and a substantially recta

[ What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims:] [1.] A connection between a ladder side rail and a hinged arm of a ladder hinge comprisinga ladder hinge having an axis;a ladder side rail having a tubular structure and a substantially rectangular cross-section and exhibiting four longitudinal edges;a hinged arm of the ladder hinge having a substantially rectangular cross-section and exhibiting four edges and at least one recess in one of the longitudinal edges of the hinged arm, wherein a free end section of the hinged arm and an upper end section of the ladder side rail overlap in a predetermined section;a junction between the ladder side rail and the hinged arm disposed in the predetermined section and connecting a rectangular profile of the hinged arm and a rectangular profile of the ladder side rail in the predetermined section of the ladder side rail and of the hinged arm, wherein at least one joining connection, produced by deformation of material of the ladder side rail at one of its edges into said one recess, is disposed in one of said longitudinal edges of the rectangular profile of the hinged arm and of the ladder side rail.