DOOR FOR CLASS ROOM

摘要

PURPOSE: A door for a classroom is provided to prevent plywood placed on the front side and the rear side of the door from being separated using nails instead of adhesive. CONSTITUTION: A core(10) of a door comprises a rectangular frame(11), a horizontal reinforcement plate, a vertical reinforcement plate, a rectangular window frame. The rectangular frame comprises two horizontal plate(11a,11b) and two vertical plates. One end of the horizontal reinforcement plate is fixed on the vertical plate and the other end is spread in the width direction of the plywood. One end of the vertical reinforcement plate is fixed to the horizontal plate and the other end is spread in the height direction of the plywood. The rectangular window frame comprises two horizontal frames and two vertical frames.