| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection lid which ensures strength of the same even if a thickness of a lid plate is reduced. SOLUTION: An inspection lid 10 comprises: an inner frame body 30 which is square in a plan view and is removably inserted into an inside of an outer frame body 20 which is fixed to inner periphery of an inspection port formed in a floor surface; a lid plate 31; and a reinforcing member 40 which is provided to contact with a bottom surface of the lid plate 31 so as to reinforce thereof, where the reinforcing member 40 includes single-shaped four long reinforcing member elements 41, and each of the two long reinforcing member elements 41 are disposed between two circumference walls of the inner frame body 30 facing to each other so as to join them, respectively, whereby the four reinforcing member elements 41 are formed in parallel cross shape. COPYRIGHT: (C)2012,JPO&INPIT |
