| 摘要 |
PROBLEM TO BE SOLVED: To accurately assemble a wing of an aircraft using an inexpensive assembling fixture with no rib-positioning function. SOLUTION: A front spar 11 having a C-shaped cross section is provided with a web 11a, flanges 11b, 11c and a reinforcing bulkhead 11a, and a middle spar 12 having an I-shaped cross section is a web 12a, flanges 12b, 12c and a reinforcing bulkhead 12d. The front and rear of a rib 14 are respectively jointed to the reinforcing bulkhead 11d of the front spar 11 and the reinforcing bulkhead 12d of the middle spar 12, thus the rib 14 can be positioned in the span direction without the mounting of the rib 14 positioning function nor an additional positioning member on the assembly fixture. A rear end 14d of the rib 14 is brought into contact with the front of the web 12a of the middle spar 12, thus the rib 14 can be positioned in the cord direction. COPYRIGHT: (C)2004,JPO
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