To secure a place for holding a small article and eliminate the incoveniences associated with keeping the small article conveniently by installing a plate to each of two legs among four legs for bearing a force from the upper side by the hinge principle and for opening laterally against a force from the lower side.

In two legs 2 among four legs arranged in a chair 1, flat type plates 4 are installed via hinges 3 and the like so as to face each other. The flap type plate 4 can bear a force from the upper side by the principle of the hinge 3 while opens laterally against a force from the upper side. When the chairs 3 are overlapped to each other for storage, the flap type plate 4 is put in a cutout storage place 5, so that numbers of chairs 2 can be overlapped mutually so as to be placed. In this way, a place for placing a small article can be secured conveniently.