Sub-ceiling for buildings

Claim 2

In a sub-ceiling suspended beneath a supporting ceiling structure, a honeycomb-like system of panels arranged in upright vertical planes and held in place by essentially supporting rails, said panels being spaced a substantial distance from the underlying floor, said rails being suspended from the ceiling structure in a horizontal plane, a first group of said rails comprising a central channel-section portion open downwardly in the direction away from the supporting ceiling and lateral channel-section portions adjacent either side of the central channel-section and open in the opposite direction upwardly, a second group of rails spaced from said first group of rails with the central and lateral channels opening in directions opposite to those of the first group of rails and said panels being fitted into and held by said lateral channel-section portions upwardly of the lateral channel-section to provide a double-faced panel structure formed from the panels with an open area between the panels and above the central channel-section.

Claim 3

In a sub-ceiling according to claim 1, in which said supporting rails consist of short lengths of material, the lengths corresponding to the lengths of said panels to be supported, said rails being bevelled at their ends in plan view for the purpose of fitting adjacent rails closely together.

Claim 4

In a sub-ceiling according to claim 1 in which said supporting rails have outer walls, said outer walls being provided with projections at diagonally opposite corners of said rails and the two other corners of said rails being provided with mating recesses adapted to receive said projections of adjoining ones of said rails.

Claim 5

A sub-ceiling according to claim 1 wherein an ordinary horizontal ceiling covering is suspended from said supporting ceiling structure and said sub-ceiling is suspended from said ceiling covering.

Claim 6

A sub-ceiling according to claim 1 having horizontal panels placed on the upper margins of said upright panels.

Claim 7

A sub-ceiling according to claim 1 having a lighting unit supported by rails.

Claim 8

In a sub-ceiling according to claim 1 the combination with an upright partition wall, said wall having a projection along its upper margin, said projection extending into said central downwardly open channel-section portion of said rail and being held thereby.

Claim 9

In a sub-ceiling according to claim 1 in which said central channel-section portion of said rail has a bottom wall, the latter being provided with ventilation openings.

Claim 10

In a sub-ceiling suspended beneath a supporting ceiling structure, a honeycomb-like system of panels arranged in upright vertical planes and held in place by essentially supporting rails, said panels being spaced a substantial distance from the underlying floor, said rails being suspended from the ceiling structure in a horizontal plane, a first group of said rails comprising a central channel-section portion open downwardly in the direction away from the supporting ceiling and lateral channel-section portions adjacent either side of the central channel-section and open in the opposite direction upwardly, a second group of rails spaced from said first group of rails with the central and lateral channels opening in directions opposite to those of the first group of rails and said panels being fitted into and held by said lateral channel-section portions upwardly of the lateral channel-sections to provide a double-faced paneL structure formed from the panels with an open area between the panels and above the central channel-section, wherein said central channel-section portion of said rail has a bottom wall, the latter being provided with ventilation openings.

Claim 11

In a sub-ceiling suspended beneath a supporting ceiling structure, a honeycomb-like system of panels arranged in upright vertical planes and held in place by essentially supporting rails, said panels being spaced a substantial distance from the underlying floor, said rails being suspended from the ceiling structure in a horizontal plane, a first group of said rails comprising a central channel-section portion open downwardly in the direction away from the supporting ceiling and lateral channel-section portions adjacent either side of the central channel-section and open in the opposite direction upwardly, a second group of rails spaced from said first group of rails with the central and lateral channels opening in directions opposite to those of the first group of rails and said panels being fitted into and held by said lateral channel-section portions upwardly of the lateral channel-sections to provide a double-faced paneL structure formed from the panels with an open area between the panels and above the central channel-section, wherein said central channel-section portion of said rail has a bottom wall, the latter being provided with ventilation openings.