PURPOSE: To achieve easy assembly work, and improve stability, by fitting a fixing slit of a shading plate attachably and detachably into an inserting slit of a crossed support body, for assembly, which forms candle support part in such a way that recessed parts of cross support bodies of upper and lower sides are assembled together.

CONSTITUTION: A shading plate 7 comprising a frame 1, a fixed slit 2, a light transmission slit 3, a folding part 6 formed of a vertical separation slit 4 as well as a connection bridge 5 for connecting a separated plate at plural points, and a lower side cross support body piece 13, and an upper side cross support body piece 18, both made of metallic thin plate, are provided. A fitting slit 14 that opens to the lower part of the upper side cross support body piece 18 is fitted attachably and detachably into a fitting slit 9, for connection, which is opened to the upper part of the lower side cross support body piece 13, and are connected together. The fixed slit 2 of the shading plate 7 is fitted attachably and detachably into an inserting slit 8 of the cross support body, for assembly, which forms a candle support part 19 by assembling together the recessed parts of the cross support body pieces 13 and 18. The assembly work is facilitated, and the shape can be varied as required, and the safety can be improved thereby.