Patent ID: 8312895

Claim:
A solenoid valve device comprising: a solenoid valve that has a solenoid portion, a valve element that drivingly slides using electromagnetic force generated by the solenoid portion and regulates and outputs fluid pressure supplied from a fluid pressure source, a spring that biases the valve element in the sliding direction, and a spring chamber that accommodates the spring; an accumulating portion that accumulates operation fluid; an intake check valve that permits the flow of operation fluid from the accumulating portion to the spring chamber; a discharge check valve that permits the flow of operation fluid from the spring chamber to an operation destination different from the accumulating portion, wherein the spring chamber includes one inflow/outflow port through which operation fluid from the intake check valve enters and operation fluid from the discharge check valve exits; and a switching value that switches between a first state that drains operation fluid inside the spring chamber, and a second state that prohibits the drainange of operation fluid inside the spring chamber, wherein the discharge check value is built into the switching value.