| 摘要 |
A frame for housing plate materials includes a pair of laterally opposed side boards having formed equally thereon a plurality of parallel, mutually opposed support grooves; bases (top and bottom plates) formed on and beneath the side boards; joints for interconnecting the side boards and the bases; a device provided in the frame to adjust an interval between the side boards in order that given plate materials may be accommodated in the frame as spaced at predetermined intervals by causing paired edges of the plate materials to be inserted 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 by simply moving one of the side boards toward the other side board while keeping the plate materials at predetermined or suitably selected positions between the opposed side boards, whereby the adjustment of clearance to be performed during the setting of the distance of the housing frame between the laterally opposite side boards may be carried out easily with one hand of the operator.
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