Abstract: A lever type electrical connector assembly includes a first connector having a first housing mounting a plurality of first terminals. A mating assist lever is pivotally movably mounted on the first connector for movement in a pivotal operating stroke between a pre-mated position at one end of the stroke and a fully mated position at an opposite end of the stroke. A second connector includes a second housing mateable with the first housing of the first connector. A coupling is provided between the mating assist lever and the second connector, whereby the connectors are mated and unmated in response to pivotal movement of the lever between its pre-mated and mated positions. Interengaging interference surfaces are provided at spaced locations between the first and second housings of the first and second connectors, respectively. The interference surfaces are engageable when the mating assist lever is at an intermediate point between the opposite ends of its operating stroke.

Abstract: A lever type electrical connector assembly includes a first connector. A mating assist lever is pivotally movably mounted on the first connector. A slide member is linearly movably mounted on the first connector. A first cam groove and cam follower mechanism is provided between the mating assist lever and the slide member, whereby pivotal movement of the lever relative to the first connector effects linear movement of the slide member relative to the first connector. A second connector is provided with a second cam groove and cam follower mechanism between the slide member and the second connector, whereby the connectors are mated and unmated in response to rotation of the mating assist lever and resulting translation of the slide member. A latch member is provided on the slide member and is latchingly engageable with the first connector and releasable by the second connector, whereby the slide member and the mating assist lever cannot move unless the connectors are at least preliminarily mated.