Abstract: A rail type fixing apparatus for installing panels includes a rail 120 having an elongate shape and a plurality of attachment panels 30 inserted into the rail so that they can be moved. The rail 120 has a lower surface 120a, a top surface 120b on which the panels are placed, and a guide groove 121 spaced a little apart from the inside bottom in the longitudinal direction. The attachment panel 30 is provided with a guide panel 31 extended from the bottom edges thereof so that it is guided by the guide groove 121 to move in the longitudinal direction of the rail 120, and a hook projection 132 formed protruding and perpendicularly with respect to the longitudinal direction from the top surface, the hook projection hooked with and maintained to a first hook groove 4 of the panel 1 and a second hook groove 7 of the other panel 1. An attachment panel 30 and an adjacent attachment panel 30 are applied of the tension restoring force by the elastic member so that the both hook projections 132 close to each other.

Abstract: The present invention is related to an installation method of panel comprising a step of assembling panels by fitting projection parts 2, 3 of one panel 1 to insertion grooves 5, 6 of another panel 1, and a step of elastically attaching panels by applying an elastic force between assembled part of panels. Also, the present invention is related to a rail type fixing apparatus for installing panels comprising a rail 20 having a guide groove 21 formed in a longitudinal direction thereof, and a plurality of attaching plates which are guided to the guide groove 21 and are provided movably in the longitudinal direction of the rail 20 and in which a hook projections 32 are provided, and an elastic member which is provided between adjacent attaching plates and applies elasticity between hook projections of the attaching plates.