Suspended ceiling system

Abstract

A suspended ceiling system includes a polygon-shaped ceiling tile and a grid of profiles supporting the ceiling tile, the grid of profiles defining a frame in which the ceiling tile is arranged and supported. The ceiling tile includes a front surface, a rear surface and at least three side edges extending between the front surface and the rear surface. A side edge portion associated with each side edge includes a top tongue, a bottom tongue, and a groove extending along the side edge portion and separating the top tongue and the bottom tongue. The top tongues include engagement surfaces resting on the supporting flanges of the grid of profiles, and a distal end of each top tongue extends beyond a distal end of the bottom tongue such that a bottom section of the ceiling tile is insertable from above into the frame.

1 - 14 . (canceled) 
     
     
         15 . A suspended ceiling system comprising:
 a polygon-shaped ceiling tile and a grid of profiles supporting the ceiling tile,   the grid of profiles defining a frame in which the ceiling tile is arranged and supported by supporting flanges of the grid of profiles,   the ceiling tile comprising a front surface, a rear surface, and at least three side edges extending between the front surface and the rear surface,   wherein a side edge portion associated with each side edge comprises a top tongue, a bottom tongue, and a groove extending along the side edge portion and separating the top tongue and the bottom tongue,   wherein the top tongues comprise engagement surfaces resting on the supporting flanges of the grid of profiles, and   wherein a distal end of each top tongue extends beyond a distal end of the bottom tongue such that a bottom section of the polygon-shaped ceiling tile comprising the bottom tongue and the groove of each side edge portion is insertable from above into the frame defined by the grid of profiles.   
     
     
         16 . The suspended ceiling system according to  claim 15 , wherein the ceiling tile is made of a compressed mineral fiber material. 
     
     
         17 . The suspended ceiling system according to  claim 15 , wherein the ceiling tile is made of glass wool. 
     
     
         18 . The suspended ceiling system according to  claim 15 , wherein the front surface of the ceiling tile is provided with a first coating having a light reflectance above 0.8. 
     
     
         19 . The suspended ceiling system according to  claim 18 , wherein each side edge portion comprises a side edge surface adjoining the front surface and being provided with the first coating having the light reflectance above 0.8. 
     
     
         20 . The suspended ceiling system according to  claim 15 , wherein each side edge portion comprises a side edge surface provided with a second coating having a light reflectance below 0.2. 
     
     
         21 . The suspended ceiling system according to  claim 15 , wherein all side edge surfaces of each side edge portion are provided with a second coating having a light reflectance below 0.2. 
     
     
         22 . The suspended ceiling system according to  claim 15 , wherein the front surface is provided with a first coating and each side edge portion comprises a side edge surface provided with a second coating, wherein the difference between a light reflectance of first coating of the front surface and a light reflectance of the second coating of the side edge surface is at least 0.5. 
     
     
         23 . The suspended ceiling system according to  claim 15 , wherein each supporting flange comprises a bottom surface provided with a third coating having a light reflectance below 0.2. 
     
     
         24 . The suspended ceiling system according to  claim 15 , wherein each groove has a height H in a range of 5-40 mm. 
     
     
         25 . The suspended ceiling system according to  claim 15 , wherein each bottom tongue has a thickness T in a range of 5-20 mm. 
     
     
         26 . The suspended ceiling system according to  claim 15 , further comprising a plurality of the ceiling tiles, wherein the grid of profiles defines a plurality of frames in which the plurality of polygon-shaped ceiling tiles is arranged. 
     
     
         27 . The suspended ceiling system according to  claim 15 , wherein the polygon-shaped ceiling tile is rectangular. 
     
     
         28 . The suspended ceiling system according to  claim 15 , wherein the grid of profiles comprises profiles having an inverted T-shape. 
     
     
         29 . The suspended ceiling system according to  claim 15 , further comprising a lighting strip arranged in the groove.