DEVICE FOR FASTENING OF FIRE-RETARDANT CEILING Russian patent published in 2002 - IPC

FIELD: construction, applicable for fastening of a ceiling consisting of a stretched panel. SUBSTANCE: the device has a support with ribs forming open cavities for setting-up of the ceiling panel with a fastening member and for accommodation of the closing member. On one side the support is provided with a flange with additional ribs forming similar cavities, and on the other side-with bulges, the relationship of the device geometric dimensions makes up L/H+h= 1.4-1.6, where L - the support length, H - the length of the main rib, h - the bulge length, and the external main rib and the internal additional ribs are installed with an inclination to their adjacent ribs. Besides, the external additional rib and the internal main rib are installed with an inclination to the adjacent rib at an angle of 0.9 to 1.5 deg. , the external ridge of the flange is rounded off. The support between the flange and the internal main rib is made with a groove. The closing fastening member of the fire-retardant ceiling has a catch with a rigid working surface perpendicular to it turning into a flexible working surface. EFFECT: prevented deformation of the device fastening assembly. 3 cl, 5 dwg