An electromagnetically controlled spring clutch mechanism comprising an input rotating element, a rotor, an armature, a biasing spring for biasing the armature in a direction away from the rotor, an electromagnetic driver for magnetically attracting the armature to {HEAD ~ the rotor} against the biasing action of {TAIL ~ the biasing spring}, and a coil spring 
An electromagnetically controlled spring clutch mechanism comprising an input rotating element , a rotor , an armature , a biasing spring for biasing the armature in a direction away from the rotor , an electromagnetic driver for magnetically attracting the armature to { HEAD ~ the rotor } against the biasing action of { TAIL ~ the biasing spring } , and a coil spring
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