Asmo Co., Ltd.

Shigeki Okabe

Kazukiyo Okada

Akira Tsunoda

An actuator for a locking mechanism which locks a shiftable lever in a locked position or a released position. The actuator includes a lock member which is shiftable between a locking position and an unlocking position for causing the lever to be locked in position or to be released from said locking position. A drive mechanism continuously forces the lock member toward said locking position. A drive mechanism causes a rotatable cam to rotate a predetermined distance in a preselected direction. The rotatable cam positions the lock member in the locking position or the unlocking position. The cam is specially designed to permit the lock member in the lock position, to be shifted to the unlocking position against the action of the drive mechanism. The drive mechanism includes a motor for rotating the cam in a predetermined direction, and a control circuit for controlling the power supply to a motor, in order to control the rotational phase angle of the cam.

Shift lock actuator and control circuit therefor

An actuator for a locking mechanism, which locks a shiftable lever in a locked position or a released position. The actuator includes a lock member which is shiftable between a locking position and an unlocking position for causing the lever to be locked in position or to be released from said locking position. A drive mechanism continuously forces the lock member toward said locking position. A drive mechanism causes a rotatable cam to rotate a predetermined distance in a preselected direction. The rotatable cam positions the lock member in the locking position or the unlocking position. The cam is specially designed to permit the lock member in the lock position, to be shifted to the unlocking position against the action of the drive mechanism. The drive mechanism includes a motor for rotating the cam in a predetermined direction, and a control circuit for controlling the power supply to a motor, in order to control the rotational phase angle of the cam.

An improved actuator assembly is disclosed. The actuator has a rotor assembly rotatably mounted in a stator frame formed of a synthetic resin material. The stator frame has a borehole therein that receives a rotor assembly, a pair of mounting recesses, and a pair of bobbins portions. Each bobbin portion includes a slot. Induction magnets are mounted in each mounting recess of the stator frame such that they face the rotor assembly. A coils is would about each bobbin portion of the stator frame. The coils and induction magnets are angularly spaced about the rotor assembly. A core having a plurality of poles and holding portions, is also provided. Each core pole extends through an associated one of the bobbin slots and faces the rotor magnet. The holding portions are arranged to hold the induction magnets in place.

Growing community of inventors

Toyohashi, Japan

Shigeki Okabe