| 摘要 |
PURPOSE:To improve structural rigidity in a bracket, by forming a closed section space with top and leg parts of the retainer setting part of the bracket and a nut plate to be locked to the backside of the setting part. CONSTITUTION:A nut plate 20 is provided with a plate body 20a at the central part and flanges at both sides and bent in a section in nearly trapezoidal form. The said flange is installed in position between a first flange part 20b and the setting part of a nut 21 corresponding to a part where a weld nut 21 is locked and composed of a second flange part 20c being wider in width than that of the first flange 20b. This nut plate 20 is inserted into the backside of a retainer setting part 6 of a bracket 4 and then a top part 6a of the plate body part 20a as well as a leg part 6b of the second flange part 20c are coupled together by means of spot welding respectively. At this time, since both sides of the top part 6a are almost nearly bent at a right angle, a closed section space 23 like an almost triangular form is made up at both angle parts of the retainer setting part 6 so that rigidity is yet improved higher. |
