Patent ID: 8240415

Claim:
A construction machine comprising: an automotive vehicle body; onboard equipment, including an engine, mounted on said automotive vehicle body; a housing cover accommodating said onboard equipment and provided with a door which opens and closes at the time of inspecting an inside thereof, said door of said housing cover being provided with a door body formed by a door body plate member, said door body plate member having a door body plate member thickness, a door body plate member rigidity and including a door body inner side surface; a flat, plate-shaped intermediate plate member having an intermediate plate member rigidity less than said door body plate member rigidity and an intermediate plate member thickness equal to or less than said door body plate member thickness, an outer surface of said intermediate plate member being joined to said door body inner side surface by welding, said intermediate plate member having an intermediate plate member length and an intermediate plate member width; and a reinforcing member joined on an inner surface of said intermediate plate member by welding, said reinforcing member having a reinforcing member length less than said intermediate plate member length and a reinforcing member width less than said intermediate plate member width.