Patent attributes
A fixing structure for a rotor blade of an embodiment includes: a fixing groove penetrating blade implantation portions and a rotor wheel in a circumferential direction; a locking blade lastly fitted into a blade groove; and a latch member inserted from an axial direction into the fixing groove formed in the blade implantation portion of the locking blade and the rotor wheel forming the blade groove into which the blade implantation portion of the locking blade is fitted. The latch member includes: an inner peripheral latch disposed on a radially inner side; an outer peripheral latch disposed on a radially outer side; a center latch fitted between the inner peripheral latch and the outer peripheral latch, and a bent portion provided at an end portion on a downstream side in the axial direction of the inner peripheral latch, the bent portion being bent to fix the locking blade.
