| 摘要 |
PROBLEM TO BE SOLVED: To prevent production of a crack due to contact with included components of an adhesive and a cement tile by forming a strap hanger by injection molding carbonate having residual stress of less than a specified value. SOLUTION: It is constituted of a flat plate type support arm 1 and a fitting piece 3, a collar edge 21 erecting an engagement projection 22 on its front end is peripherally provided on an peripheral edge of a support arm 2, a spring plate 23 is projectively provided toward the fitting piece 3 on a lower end of a downward projected part of the support arm 2, and a support projection 31 relatively facing the spring plate 23 is projectively provided from the fitting piece 3. A strap hanger constituted in this way is formed by injection molding polycarbonate in which glass fiber is filled, and its residual stress is made less than 100kgf/cm<2> . Consequently, it is possible to prevent production of a crack due to contact with an included component of a cement tile dissolved by rain water as well as an adhesive used for connection of the eaves gutter. |
