COLD STORAGE AGENT FREEZING CHAMBER

PROBLEM TO BE SOLVED: To uniformly and rapidly freeze all cold storage agents accommodated in a chamber.SOLUTION: Hanger racks 40 hanging and supporting mat-like cold storage agents A folded into two are installed in a multiple steps in a freezing chamber 12 and cold air is blown out along a deepest wall 12A, is blown out forward, and thereafter is circulated and supplied so as to rise up along the rear surface of an insulating door 15. The hanger racks 40 are positioned and arranged with predetermined spaces arranged between the front frames 47 of the supporting frames 45 and the rear surface of the insulation door 15 and between the rear frames 48 of the supporting frames 45 and the deepest wall 12A by the locked parts 43 of the rear fringes of the body frames 41 being locked to shelf receiving metals 32 arranged in the deep wall 12A and the corner parts of the front fringes of the body frames 41 being locked to the shelf receiving metals 32 arranged in the sidewalls 12B. The front frames 47 of the supporting frames 45 are marks indicating the position of the front ends of the cold storage agents A in the case of hanging and supporting the mat-like storage agents A on the horizontal frames 46 of the supporting frames 45.