Stringer segment attached to staircase, has cheek surface which comprises front side having front edge and rear side having rear edge for mounting stairway step, so that front edge and rear edge form flange for further stringer segment

摘要

The stringer segment (1) has a cheek surface (3) which comprises front side (4) having a front edge (5) defined by the staircase increase direction and rear side (6) having a rear edge (7) defined by the staircase increase direction, for mounting of stairway step. The front edge and the rear edge form a flange for further stringer segment. An independent claim is included for staircase.