To prevent a chair, etc., from falling down forward, by equipping a front floor contact piece whose front end projects slightly further forward than the front end of a horizontal leg rod onto the front end part lower face of a leg formed in an L-shape in side view fixing the lower end of a support rod facing the upper back direction onto the front end of a horizontal leg rod.

A leg a of formed by raising a backward leaning support rod 3 from the front end of a horizontal leg rod 2 into a backward facing L-shape in side view, and a front floor contact piece 5 is set on the lower face of the front end part 4 of the horizontal leg rod 2. Since the horizontal leg rod 2 and the support rod 3 are made to have light weight and sufficient strength, they employ an ellipse cross section pipe with a small width. The front end of the horizontal leg rod 2 is cut obliquely toward the upper back direction, and the lower end back face of the support rod 3 is connected to the cut face by welding. The front floor contact piece is a resin molding and mounted on the front end part 4 of the horizontal leg rod 2 by a tap screw inserted from the lower face.