| 摘要 |
A connection supporting body (33), which comprises a pair of divided pieces (34, 34) joined to a vane base end part (21) from either side in the vane thickness direction, is disposed at a part where the vane base end part (21) of a guide vane (20) and mounting flanges (31f) are connected together; elongated protrusions (21a) are formed on either side of the vane base end part (21); engagement grooves (35a), which engage with the elongated protrusions (21a) formed on the vane base end part (21), are formed in the pair of divided pieces (34, 34) of the connection supporting body (33); respective side edges (35b, 35b) of the pair of divided pieces (34, 34), which are located on the center side of the vane and extend along the vane chord direction, are formed so as to rise toward the center of the vane; the tips of the side edges (35b, 35b) are chamfered; and the vane base end part (21) is held between the pair of divided pieces (34, 34) of the connection supporting body (33) by a fastening force which is applied from either side in the vane width direction by the pair of divided pieces (34, 34) of the connection supporting body (33). The occurrence of a problem of peeling-off of a reinforced fiber layer at the end part of the vane made of a composite material can be minimized. |
