| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve which can be manufactured at a low cost while enabling easy assembly of a detent mechanism with a small number of part items, and can adjust a holding force of a position of a valve member.SOLUTION: In a double-solenoid valve in which a valve member 3 for switching flow passages in a valve hole 2 is switched to two positions in an axial direction; however, the position holding of the valve member 3 in the two positions is unstable, a detent mechanism 20A is arranged between the valve hole 2 and the valve member 3. The detent mechanism has a circumferential groove 21 on an internal peripheral face of the valve hole, accommodates a ring-shaped detent member 22 having rubber elasticity, and has a trapezoidal part 23 between the two switching positions at an external peripheral face of the valve member 3. Shoulder parts at both ends of the trapezoidal part are made to serve as lock parts 23a for locking a protruded part 22d of the detent member. The circumferential groove has a pair of parallel groove sidewalls 21a and a bottom wall 21b, and in the detent member, a sidewall 22a facing the groove sidewall contacts the groove sidewall, and its posture can be held. |
