Roller blind case's under-surface i.e. access hatch, fixing system for lintel, has intermediate rail including groove shaped reception part that receives under-surface and is dimensioned so as to maintain under-surface by nesting

摘要

The system has a main rail (14) mounted on a lower part of a lintel (16). The main rail comprises a groove (18) receiving a determined under-surface whose thickness is substantially equal to a width (l) of the groove. An intermediate rail (20) comprises a fixation part (24) housed in the groove of the main rail. The intermediate rail comprises a groove shaped reception part (26) to receive the under-surface. The reception part is dimensioned in a manner to maintain the under-surface by nesting.