ELECTROMAGNETIC DRIVE DEVICE

• Main Authors: KATO ICHIRO, AMANO HITOSHI
• Format: Patent
• Language: English
• Published: 28.11.2013
• Subjects: ACTUATING-FLOATS; BASIC ELECTRIC ELEMENTS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TAPS; THERMAL INSULATION IN GENERAL; TRANSFORMERS; VALVES; WEAPONS

PROBLEM TO BE SOLVED: To provide an electromagnetic drive device capable of restraining a foreign matter inside the electromagnetic drive device, as well as restraining a manufacturing man-hour from increasing.SOLUTION: The electromagnetic drive device comprises: a first cylindrical member 30 having a fitting section 31 and a projection section 32 projecting from the fitting section 31 in a radial direction; a second member 40 having a cylinder section 41 fluid-tightly fitted with the fitting section 31 on its inner peripheral side; a movable body 10 reciprocating in an axial direction on inner peripheral sides of the first member 30 and the second member 40; and a drive source 20 provided on an outer peripheral side of the first member 30 and electromagnetically driving the movable body 10. The fitting section 31 has a groove 31b opened toward an outer peripheral face 31a on the projection section 32 side. While an opening side end 41e of the cylinder section 41 is in contact with the projection section 32, the outer peripheral face 31a of the fitting section 31 and an inner peripheral face 41a of the cylinder section 41 are fixed to each other with an adhesive 80.