Patent ID: 6948623

Claim:
A frame for housing plate materials, comprising: a pair of laterally opposed side boards having formed equally thereon a plurality of parallel, mutually opposed support grooves; bases that are top and bottom plates formed on and beneath the side boards, respectively; joints for interconnecting the side boards and the bases; means provided in the frame for adjusting an interval between the side boards in order that given plate materials may be accommodated in the frame as spaced at predetermined intervals as a consequence of insertion of paired edges of the plate materials into the opposed support grooves; adjusting projections protruding slightly from the support grooves and disposed on at least either of mutually opposed inner surfaces of members suitably selected from among the side boards, bases and joints; and auxiliary adjusters disposed near the adjusting projections and adapted to allow terminal parts on at least one side of the plate materials to collide against the mutually opposed inner surfaces as a consequence of simple movement of one of the side boards toward the other side board, with the plate materials kept at predetermined or suitably selected positions between the opposed side boards.