| 摘要 |
PROBLEM TO BE SOLVED: To uniformly distribute the pressing force generated on a structural component by a fastening element by providing two projections extending into the widening sections of the opening of the structural component, and making the outside contour of a cover plate larger in the plane direction than the outside contour of the projections. SOLUTION: The cover plate 3 of this attachment device is connected to an angular structural component 1 having an opening 2. The opening 2 is constituted of a circular opening portion and two widening sections 7 located diametrically opposite one another. Two projections 6 are provided diametrically opposite one another on the side face 4 of the cover plate 3 covering the opening 2 except for a through opening 5. The contour of the projections 6 protruded vertically to the side face 4 is made to correspond at least partially to the peripheral contour of the widening sections 7, and the outside contour of the cover plate 3 is made larger in the flat plane direction than the outside contour of the projections 6. The pressing force applied to the cover plate 3 by a fastening element 10 is uniformly distributed around the noncircular opening 2, and a high surface pressure and the deformation of the opening 2 can be avoided. |
