Patent ID: 7891306

Claim:
A stool comprising: a seat board; a plurality of legs fixedly attached to the seat board so as to protrude from a bottom surface of the seat board in a downward direction, and to support the seat board such that the seat board is horizontally supported for supporting an individual in a seated position, and each of the plurality of legs having a pair of adjacent inwardly facing tapering surfaces which taper toward a bottom side of the stool; a connecting board disposed such that one surface thereof faces a bottom surface of the seat board, the connecting board having a plurality of notches and being surrounded by and secured to the plurality of legs via the plurality of notches such that each one of the plurality of notches engages with the pair of adjacent inwardly facing tapering surfaces of a respective one of the plurality of legs; and an adjustment mechanism which enables changing a securing position of the connecting board, with respect to each of the plurality of legs and the seat board, by permitting movement of the connecting board, in an up and down direction, so that the connecting board is located parallel to the connecting board in a previously secured position once the connecting board is adjusted and secured to the plurality of legs; wherein the connecting board comprises a fixed member and a slidable member; the slidable member comprises an inclined portion which projects outwardly from a front periphery of the slidable member and is inclined downward; and the fixed member is configured to be secured to the plurality of legs and support the slidable member such that the slidable member, including the inclined portion, is movable relative to the fixed member.