| 摘要 |
PURPOSE:To make a positioning job ever so easy without using any jig, by positioning the joining flange formed in a second plate to a first plate's joining flange by the rising flange and the joining flange formed in a first plate. CONSTITUTION:A reinforce 28 is positioned in a C direction by what a joining flange 30 is made contact with another joining flange 26 of a lower back panel 24. And, it is also positioned in a D direction by what a rising flange 36 is made contact with the vicinity of a root part 40 of the joining flange 26 of the lower back panel 24. With this constitution, both these joining flanges 26 and 30 themselves can be positioned in a highly accurate manner without using any jig.
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