| 摘要 |
PROBLEM TO BE SOLVED: To increase the strength of a vertical frame of a door to make the attachment of a hinge or the like firm, and to improve appearance by not exposing the vertical frame to the surface. SOLUTION: Vertically pointing projections 12 are provided at the right and left outer side face center parts of vertical frames 2, and the right and left edges of a surface material 5 are bent to form longitudinal inward bent pieces 13 with the outer side faces adjusted to the tip faces of the projections 12, and folded pieces 14 bent toward the center of a frame body from the inner ends of the inward bent pieces 13 to abut on the side faces of the projections 12. COPYRIGHT: (C)2003,JPO
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