SHAFT JOINT DEVICE, AND ROTATIONAL PHASE ADJUSTING METHOD FOR SHAFT JOINT DEVICE

A shaft joint device configured to transmit a rotational force between a first shaft and a second shaft is provided with a first joint member to be attached to the first shaft, a second joint member to be attached to the second shaft, and an intermediate member which is disposed between the first joint member and the second joint member, and which is configured to allow misalignment between the first shaft and the second shaft, wherein the second joint member includes: a base member configured to be fixed to the intermediate member by means of a first fastening device; and a shaft attachment member which is configured to be attached to the second shaft without being capable of relative rotation, which has an elongated hole extending in the circumferential direction of an axis, and which is configured to be detachably fixed to the base member by means of a second fastening device which is inserted through the elongated hole.