Width-Adjustable Board Storage Frame and Assembly Method for the Same

A method for assembling 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;
• the assembly method comprising the steps of:
• setting the fixed side plate upright on the base plate;
• inserting the bosses formed at the end of the movable side plate on its base plate side, respectively into the grooves in the base plate on which the fixed side plate is set upright, setting the movable side plate upright on the base plate, and placing the movable side plate in parallel with the fixed side plate;
• pushing down the movable side plate in a direction away from the fixed side plate, using the base plate side of the movable side plate as a supporting point with the bosses being inserted in the grooves;
• mounting the top plate on the fixed side plate with the movable side plate being left pushed down;
• after mounting the top plate, raising the movable side plate, inserting the bosses formed at the end of the movable side plate on its top plate side into the grooves in the top plate, and placing the movable side plate in parallel with the fixed side plate;
• and
• having the bosses respectively inserted in the grooves pass through the respective connection paths, moving the movable side plate relative to the fixed side plate, and stopping the movable side plate at a desired position.