The evacuation ladder in the evacuation device

摘要

(57) Abstract Objective As for this device it is light in regard to the evacuation device in the evacuation device,While assuring quantification, at the same time, rigidity of desire, it can give strength, it is denseWith it makes purpose. Constitution The evacuation ladder constitutes, constructing side bridge 2 between vertical bridge 1,It is done. As for side bridge 2, side bridge itself of profile falling down U shape 4 and side bridgeThe fixed piece of side view L letter condition because computer 4 is locked in vertical bridge 1To have with 5, in the hollow section of side bridge itself 4, the side bridge itself 4 and cooperationWorking doing, forms the closed rectangular profile of air the stiffener 6 which fit fixingIt is done. The side bridge itself with 4 and stiffener 6 cross section of side bridge 2By making the rectangular form which closes, if only direction of twistAlso for strength with the zu and bend direction to improve, it becomes possibleFurthermore, as for stiffener 6, due to the fact that the both ends are blocked thatItself rigidity to improve, with the extension 6of a the said stiffener 6 shiftBy bearing the underside of fixed piece 5, the joint of vertical bridge 1Strength improves.