| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure for positioning open strings, which can easily and precisely join the upper ends of the open strings to a wall surface to be joined from the front side of the wall surface to be joined.SOLUTION: A joint structure for positioning open strings comprises joint hardware 13 fixed to a wall surface to be joined 23 and positioning notch parts 16, each of which is formed in the upper end of each open string 11. The joint hardware 13 includes a base board plate 15, which consists of a pair of string joint plates 15a and a connection plate 15b, and a first positioning plate 14a and a second positioning plate 14b arranged so that each of them perpendicularly protrudes from each of the string joint plates 15a. Each of the positioning notch parts 16 has a first notch 16a cut in the vertical direction from a joint end surface 11a at the upper end of each open string 11. The upper end of each open string 11 is joined to the wall surface to be joined 23 via the joint hardware 13 by being positioned with side face of the inner side at the upper end arranged along the first positioning plate 14a and with the second positioning plate 14b inserted into and locked with the first notch 16a. |
