Tokai Rubber Industries, Ltd.

Motoshi Sakurai

Hiroyuki Ichikawa

Takayoshi Yasuda

Yoshinori Watanabe

An electromagnetic actuator having: a stator and a movable member disposed in a central hole of a coil member of the stator movable in an axial direction; a coupling rod fixed to the movable member; and an elastic stopper having a ring shaped sealing unit at its outer periphery part, a first stopper unit at its center part, a coupling unit that mutually couples the sealing unit and the first stopper unit, and second stopper units located radially between the sealing unit and the first stopper unit at respective circumferential positions. The sealing unit is compressed between the bottom wall of a housing and a lid member to form a sealing mechanism that fluid-tightly close an opening of an adjustment hole. The first stopper unit axially faces the coupling rod bottom with a first separation distance, and the second stopper units axially face the movable member bottom with a second separation distance greater than the first.

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Ama-gun, Japan

Motoshi Sakurai