Cam mechanism for attaching and detaching interconnecting structures with a low insertion force

摘要

A connector arrangement including a cam mechanism for interconnecting connector housings, in which the number of component parts is reduced and the strength is increased. The connector arrangement includes a first connector housing having a pair of support walls extending therefrom, each of the support walls having a protruding pin; a cam lever pivotally supported on each pin with the cam lever having a pair of cam grooves formed therein; a second connector including a following arm extending therefrom which includes pair of projections which are receivable in the cam grooves whereupon rotation of the cam lever causes the first and second connectors to be joined together; a temporary locking member extending from each of the support walls for retaining the cam lever in a temporary angular position at which the projections are insertable into the cam grooves; and a complete locking member extending from each of the support walls for retaining the cam lever in a completely locked angular position where the first and second connectors are completely engaged with each other. The temporary and complete locking members are integral to the support walls, respectively. The arrangement further includes rotation prevention members provided on the support walls for limiting rotation of the cam lever to a predetermined angle.