PURPOSE: To improve the efficiency of CRT mounting by providing a sharp- pointed bendable guide section to an upper part of a tip of an inside of each positioning section and pressing the guide section to a lower face of a bracket when a CRT bracket is mounted to bend the guide section inward or outward.

CONSTITUTION: A guide section (b) is provided to an upper part of an inner tip of a positioning section (a). The guide section (b) is sharp-pointed to the upper part of the inner tip of the positioning section (a). Thus, when a rubber cushion C is inserted to the inner side of the positioning section (a), since the rubber cushion is surrounded by the guide section extended up to a position higher than the thickness, the guide is not deviated from the positioning section while a bracket is mounted. Moreover, since the guide is folded inward or outward while being pressed by the lower face of the bracket when the bracket is tightened to a CRT fix boss, no hindrance to the mount is caused.