Patent ID: 7819261

Claim:
An adjustable board storage frame with two upright side plates placed opposite to each other and between a top plate and a base plate that are placed with a certain space therebetween, one of the side plates being a fixed side plate and the other side plate being a movable side plate that can be moved remaining parallel with the fixed side plate and fixed at a desired position, the adjustable board storage frame comprising: pinions located near the four corners of the movable side plate, the pinions rotating together; guide rails located on the inside surfaces of the top plate and the base plate so that the guide rails are placed substantially perpendicular to the fixed side plate, the guide rails having racks to engage with the respective pinions; bosses protruding from near the positions on the movable side plate where the respective pinions are located; grooves that are formed near the positions in the top plate and the base plate where the fixed side plate is placed, and to which the respective bosses can be inserted; and connection paths that are formed in the top plate and the base plate along the respective guide rails and connected to the respective grooves, and through which the bosses pass when the movable side plate is moved.