Valve opening and closing timing control device

A valve opening and closing timing control device comprising:

• a drive-side rotary body that rotates synchronously with a crankshaft of an internal combustion engine;
• a driven-side rotary body that is provided inside the drive-side rotary body in a state of being coaxial with a rotation axis of the drive-side rotary body and that rotates integrally with a camshaft for opening and closing a valve;
• an advance chamber and a retard chamber formed between the drive-side rotary body and the driven-side rotary body;
• a valve unit that includes a spool movable in a rotation axis direction and that controls supply and discharge of fluid to and from the advance chamber and the retard chamber;
• a tubular valve case that has an internal space extending along the rotation axis inside the driven-side rotary body in a radial direction and that houses the valve unit in the internal space;
• a first drain flow path through which the fluid is discharged from any one of the advance chamber or the retard chamber through the spool;
• and
• a second drain flow path through which the fluid is discharged from the other one of the advance chamber or the retard chamber through the spool, wherein
• the first drain flow path and the second drain flow path extend in directions intersecting each other at different positions in the rotation axis direction.