Rotary solenoid

A rotary solenoid comprising:

• a first yoke and a second yoke placed oppositely;
• a rotor disposed between the first yoke and the second yoke, and providing a pair of magnetic poles by a permanent magnet;
• a core seized by the first yoke and the second yoke;
• a coil wound around the core and forming a pair of magnetic poles in the first yoke and the second yoke upon supplying electricity;
• the first yoke, second yoke, core, and coil being resin-molded
• one of a concave portion and a convex portion capable of being inserted in said concave portion is formed in said first yoke and said second yoke;
• and
• the other one of said concave portion and said convex portion is formed in said core.

A rotary solenoid comprising:

• a first yoke and a second yoke placed oppositely;
• a rotor disposed between the first yoke and the second yoke, and providing a pair of magnetic poles by a permanent magnet;
• a core seized by the first yoke and the second yoke;
• the first yoke and the second yoke each possessing one side facing the core that is seized by the first and second yokes;
• a coil wound around the core and forming a pair of magnetic poles in the first yoke and the second yoke upon supplying electricity;
• the first yoke, second yoke, core, and coil being resin-molded;
• a projecting portion provided at an outer surface of the first yoke and at an outer surface of the second yoke, the outer surface of the first yoke being positioned on an opposite side of the first yoke from said one side of the first yoke, the outer surface of the second yoke being positioned on an opposite side of the second yoke from said one side of the second yoke;
• one of a concave portion and a convex portion capable of being inserted in said concave portion is formed in said first yoke and said second yoke;
• and
• the other one of said concave portion and said convex portion is formed in said core.