Hydraulic oil control valve and valve timing adjustment device

A hydraulic oil control valve for a valve timing adjustment device, the valve timing adjustment device being configured to adjust valve timing of a valve and fixed to an end portion of one shaft that is a drive shaft or a driven shaft, the driven shaft being configured to selectively open and close the valve with a driving force transmitted from the drive shaft, the hydraulic oil control valve being coaxially disposed with a rotational axis of the valve timing adjustment device and configured to control a flow of a hydraulic oil supplied from a hydraulic oil supply source, the hydraulic oil control valve comprising:

• a tubular sleeve;
• a spool that has an end portion in contact with an actuator and that located inward of the sleeve in a radial direction and slidably moved by the actuator in an axial direction;
• a movement restricting portion;
• and
• a fixing member, wherein
• the sleeve includes:
• an inner sleeve disposed radially outside of the spool;
• and
• an outer sleeve defining an axial hole extending in the axial direction, the inner sleeve being inserted into at least a portion of the axial hole in the axial direction,
• the movement restricting portion is configured to restrict the inner sleeve from moving away from the actuator in the axial direction,
• the fixing member is fixed to an end portion of the outer sleeve facing the actuator, and
• the fixing member is configured to restrict:
• the inner sleeve from moving in a circumferential direction relative to the outer sleeve;
• and
• the inner sleeve and the spool from coming off from the outer sleeve toward the actuator in the axial direction.