NOVELTY - The structure has a connection part (21) extended along direction orthogonal to a frame main body (1A). Another connection part (22) is fixed to ends along longitudinal direction of the body. A connection part cover (4) covers the former connection part that is fixed to an edge part of the body along longitudinal direction. Electrical wiring (CB) to a panel-shaped part is accommodated in a space between the former connection part and the cover, while inserting the panel-shaped part into a groove (1D) of a rail-shaped frame (1) that adjoins ends of a single-piece panel-shaped part.    USE - Structure for attaching a panel-shaped part e.g. rectangular panel-shaped solar cell module such as solar cell panel, provided with rectangular electrical wirings, to plane upper board i.e. flip-up-type roof sheathing, of a box-type loading platform of a vehicle i.e. lorry, for freight transport, a residence and a wing body.    ADVANTAGE - The electrical wiring to the panel-shaped part can be accommodated in the space between the connection part and the cover, while inserting the panel-shaped part into the groove of the rail-shaped frame that adjoins the ends of the single-piece panel-shaped part such that the rail-shaped frame can be shared into reinforcing material of a roof to reduce manufacturing cost of the structure. The solar cell module tends to receive damage with vibration in driving such that a single-piece solar cell module can be used at the structure to reduce damage, so that weight of the structure can be reduced and the box-type loading platform of the lorry responds to requirement of fuel consumption reduction.    DETAILED DESCRIPTION - The latter connection part is L-shaped angle material. The frame main body is formed in ladder shape.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating an attachment/detachment method for a rectangular panel-shaped solar cell module.'(Drawing includes non-English language text)'    Electrical wiring (CB)    Rectangular panel-shaped solar cell module (PM)    Rail-shaped frame (1)    Frame main body (1A)    Groove (1D)    Connection part cover (4)    Connection parts (21, 22)