LID RECEIVE FRAME

摘要

PROBLEM TO BE SOLVED: To provide a lid receive frame capable of reducing complicated machining such as adjustment of lid side size required when installing a lid and eliminating danger of lid dropping caused by the deterioration of a skeleton. SOLUTION: This lid receive frame is arranged along a peripheral fringe to fit and put the lid in an upper part peripheral fringe of the longitudinal cylindrical skeleton and is provided with an upper flange part attached to the skeleton by putting it on the peripheral fringe of the skeleton and a lower flange part whose tip is abutted on an inner peripheral face of the skeleton. These flange parts are mutually connected by a rib member having a smaller radius of curvature than a radius of curvature of the inner peripheral face.