| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain valve drive device on which a power-assisted device can be easily installed and which can suppress a change in the appearance of a flush toilet between the case that the power-assisted device is installed and the case that it is not installed.SOLUTION: The drain valve drive device which is installed on a tank device for storing washing water to be supplied to a flush closet, and can input the driving force of the power-assisted device and the driving force of manual operation, includes am operation lever, an operating shaft, and a connection member, the connection member having a rotation restricting part for restricting the rotation of the power-assisted device, and a thrust movement restricting part for restricting the movement in the thrusting direction of the power-assisted device, the operating shaft having an input part to which the driving force of the power-assisted device is input, the input part being shaped projecting in the radial direction of the operating shaft to rotate the operating shaft with at least part abutting on the power-assisted device. |
