| 摘要 |
PROBLEM TO BE SOLVED: To prevent a washer plate from becoming obstructive when connecting anchor heads by a rope-like body.SOLUTION: A bearing member 3 to be attached to an anchor head includes a bottom plate 7, a cylindrical body 8 at a bottom plate center part and a plurality of radially extending reinforcing ribs 9. A washer plate 10 for receiving a nut screwed to an anchor upper end is fixed to an upper end of the cylindrical body 8 and also the vicinity of a cylindrical body side end of the upper end of the reinforcing ribs 9. When a length from the outermost end Pof the washer plate 10 in a cylindrical body radial direction to a cylindrical body outer shape position Q, which is near a washer plate outer end Pon the reinforcing rib, is defined as La and a length from a washer plate outer end Pin an arbitrary cylindrical radial direction to a cylindrical outer shape position Q, which is in an area M excluding the vicinity of the washer plate outer end Pon the reinforcing rib, is defined as Lx, Lx<La is satisfied. A projection length L from a cylindrical body outer periphery between two adjacent reinforcing ribs of the washer plate becomes short, and a projection part does not become obstructive when connecting anchor heads by a rope-like body. |
