Patent ID: 6872092

Claim:
A waterproof connector, comprising: a connector housing accommodating a plurality of cavities for receiving terminal fittings connected to ends of electric wires, the cavities having rear open ends formed on a rear surface of said connector housing; a rubber plug having opposite front and rear surfaces that are substantially planar in an unbiased condition of said plug, through-holes extending through the rubber plug from the front surface to the rear surface at positions corresponding to said respective cavities, through which said electric wires are penetrated with said electric wires in close contact with said through-holes; and a rubber plug hold-down member having a front surface that presses said rear surface of said rubber plug for urging said rubber plug against the rear surface of said connector housing and the rubber plug hold-down member has a plurality of open portions through which said electric wires can be inserted; wherein at least one waterproof rib projects from said rear surface of said connector housing and from the front surface of said rubber plug hold-down member so that said waterproof ribs are pressed against said front and rear surfaces of said rubber plug when said rubber plug is pressed against said rear surface of said connector housing for urging said front and rear surfaces of said rubber plug into a nonplanar configuration whereby a water penetration path passing inwards through a peripheral portion of said rubber plug is cut off before reaching said rear open ends of said cavities.