| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a support device for floor panel that has a support leg composed of a grounding plate and a male screw body coupled by caulking.SOLUTION: A male screw body 3 is provided, at a lower end of a main body 31 having a male screw cut thereupon, with a collar 32 as a flange projecting horizontally from the main body 31 and a cylinder part 33 projecting downward from the collar 32, and a grounding plate 2 is provided, on a grounding surface 24, with a center bead 21 shaped in plan view surrounding a connection hole 22 into which the cylinder part 33 is inserted and swelling from the grounding surface 24 and a plurality of reinforcement beads 23 extending crossing an outer peripheral edge 321 of the collar 32 of the male screw body 3 having the cylinder part 33 inserted into the connection hole 22 of the center bead 21 and swelling from the grounding surface, respectively. The male screw body 3 is coupled to the grounding plate 2 by mounting the outer peripheral edge 321 of the collar 32 on the reinforcement beads 23 and spreading and caulking the cylinder part 33 projected downward from the connection hole 22 formed in the center bead 21 of the grounding plate 2 outward in a radial direction so as to constitute a support leg 1.</p> |
