| 摘要 |
PROBLEM TO BE SOLVED: To provide a door panel capable of securing the strength of a hinge mounting portion in a double structure made of an outside and inside plates. SOLUTION: In this double structure made of the outside and inside plates 21 and 23, hinge mounting surface portions 48 and 49 of the inside plate 23 are structurally reinforced with reinforcing recessed groove portions 48c and 49c around them; and hinge mounting protrusions 43 and 44 of an inside reinforcing plate 41 fixed between the outside plate 21 and a reinforcing plate storage protrusion 29a of one side portion of the inside plate 23 are structurally reinforced with reinforcing recesses 43c and 44c around them. The reinforcing recessed groove portions 48c and 49c of the inside plate 23 and the reinforcing recesses 43c and 44c of the inside reinforcing plate 41 are fitted together for structural strengthening. The strength of the hinge mounting surface portions 48 and 49 and the hinge mounting protrusions 43 and 44, on which the self-weight of the door panel 20 acts, can be secured. COPYRIGHT: (C)2010,JPO&INPIT
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