| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine blade improving damages generated in a fitting part between a tenon and a segment.SOLUTION: A turbine blade has a first tenon hole having a first blade effective part having a first blade top part having a code direction, a first blade distal end parts arranged in the first blade top part and having side faces corresponding to each other, a second blade effective part having a second blade top part having the code direction, a second blade distal end part arranged in the second blade top part and having side faces corresponding to each other, linear parts facing each other, and curved line parts connected to the linear parts, a second tenon hole having linear parts facing each other, and curved line parts connected the linear parts, and a segment arranged between the first and second blade distal end parts and having a first tenon part inserted into the first tenon hole and a second tenon part inserted into the second tenon hole, either one of the curved line parts of the first and second tenon holes has a relief part protruding more than the width between the linear parts. |
