| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure of a reinforcement, which can compensate for the tensile strength of the base material of the reinforcement by properly managing the tensile strength of a joint. SOLUTION: This joint structure of the reinforcement comprises a tapered screw portion 30 which is formed by cutting an end of the reinforcement 10 in a tapered shape after plastically hardening it, and a sleeve portion 40 which has both ends provided with female screw portions 41 for being screwed to the tapered screw portion 30. The tensile strength of the joint between the tapered screw portion 30 and the sleeve portion 40 is set to exceed that of the base material of the reinforcement. COPYRIGHT: (C)2010,JPO&INPIT
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