| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a band for pole, wherein there is no possibility of a tightening bolt, etc., causing the bolt to fall during their attaching works to the band, and stable attaching state of the bolt to the tightening reception-piece of the band is obtained. SOLUTION: Tightening reception pieces 7, 9 provided in a pair of band-pieces 1, (2) are made to face opposite each other, and in the one tightening reception- piece 7, an oblong through-hole 11 for a tightening bolt 3 is bored to pass the bolt 3 through the through-hole 11 and a through-hole 12 bored in the tightening reception-piece 8 and to engage a tightening nut 5 with the protruded end of the bolt 3 from the hole 12. In this case, the width of one side of a rectangular head 13 of the bolt 3 is made smaller than the lateral width of the through-hole 11 and larger than the longitudinal width of the through-hole 11 to make the width of the other side of the head 13 of the bolt 3 smaller than the longitudinal width of the through-hole 11. Moreover, in the tightening reception-piece 7, a protrusively tube swelling portion 9 is provided, and its contacting surface 14 with the foregoing head 13, wherein the foregoing oblong through hole 11 for the bolt 3 is bored, is made oblique to gradually recess the contacting surfaced 14 from the longitudinal ends thereof to the center thereof.</p> |
