| 摘要 |
<P>PROBLEM TO BE SOLVED: To constitute a door body without displacing frame materials, when internally attaching the pair of upper and lower frame materials to upper and lower portions of the door body comprising a pair of first and second front-side and backside face plates made of a metal plate material. <P>SOLUTION: First and second bent piece portions are formed in a bent shape at end edges on the door end side and door tail side of first and second face piece portions 7a and 8a constituting door surfaces 6e and 6f of first and second face plates 7 and 8, respectively. End surfaces 6e and 6f on the door end side and door tail side of a door body 6 and inside piece portions on the door end side and the door tail side positioned inside the end surfaces 6e and 6f are formed of the first and second bent piece portions, respectively. Notched portions CF1 and CB for supporting upside and downside frame materials 12 and 13 are formed at both the upper and lower ends of the inside piece portions on the door end side and the door tail side, respectively. <P>COPYRIGHT: (C)2012,JPO&INPIT |
