LINK MECHANISM, AND VARIABLE STATIONARY-BLADE DRIVING DEVICE PROVIDED THEREWITH

摘要

This link mechanism is provided with a rotating shaft on which a pin pushing screw hole is formed, a link member on which a shaft insertion hole through which the other end of the rotating shaft can be inserted is formed, an anti-rotation pin for restraining the link member such that the link member cannot rotate about the axial line relative to the other end of the rotating shaft, a pin support member to which the anti-rotation pin is secured, and a pin pressing bolt having a male screw part that can screw into the pin pushing screw hole, wherein a pin hole into which the anti-rotation pin can be inserted is formed on the other end of the rotating shaft and the link member, a pin extraction screw hole is formed on the pin support member, and the diameter of the screw thread of the pin extraction screw hole is larger than the diameter of the screw thread of the male screw part on the pin pushing bolt and is smaller than the outer diameter of the bolt head of the pin pushing bolt.