Electrical connector requiring low insertion force

Claim 1

A low insertion force electrical connector system requiring low insertion force to engage a first connector element arranged on a side of an electrical instrument with a second connector element arranged on a side of an electrical cable, said electrical connector system comprising: a first connector housing for retaining said first connector element; a second connector housing for retaining said second connector element to be engaged with said first connector element, said second connector housing including opposing sidewalls provided with a pair of pins, each protruding laterally from a respective one of said opposing sidewalls; and an operating lever of a shape forming a frame for accommodating said first connector housing therein, said frame comprising a pair of side plates, a front plate connecting front ends of said side plates with each other, and a rear plate connecting rear ends of said side plates with each other to provide an operating part to be operated by an operator, said front plate being provided with at least one hook part having a depressed plate, said operating lever further including a slit formed in each of said side plates and extending obliquely from lower edges of said side plates engageable with said pins; wherein said first connector housing has at least one holder arranged at an end of said first connector housing to engage with said at least one hook part and to thereby rotatably support said operating lever, said at least one holder further comprising a lateral bar and a hole which is positioned under said lateral bar and into which said depressed plate of said at least one hook part is inserted; and wherein, when said operating lever is rotated about said at least one holder of said first connector housing, said pins are urged downwardly by slidable engagement with said slits, whereby said second connector housing is moved directly toward said first connector housing.