| 摘要 |
<p>PURPOSE: To easily and surely couple crosspieces or a fence. CONSTITUTION: Insertion protrusions 15 are projected from opposite sides of a joint member 10 interposed between crosspieces l, 1, and a bolt receiving hole 16 is formed in each of the insertion protrusions 15 at a longitudinal intermediate position, piercing therethrough while an insertion hole 20 is formed in each of the crosspieces 1, 1 filled therein with urethane resin 7, and the insertion protrusions 15 are inserted in the insertion holes 20. A bolt 23 is inserted through each insertion hole 22 piecing through the each of the crosspieces and crossing the insertion hole 20, and is tightened by a nut, and a bolt is inserted in a bolt receiving hole 16 so as to couple the crosspieces 1 together by means of the joint members 10.</p> |
