Patent ID: 9306329
Filing Date: 2016-04-05
CPC Classification: H01R

Claim Text:
1. A lever-type connector, comprising: a housing connectable to a mating housing and including shafts projecting on opposite side surfaces and outward deformation preventing walls each with an open inner space on the side of the shaft; and a U-shaped lever having a coupling and two arm plates projecting from opposite ends of the coupling, each of the arm plates having an outer periphery, a curved cam groove formed in each of the arm plates and extending from an entry at the outer periphery to a closed end inward of the outer periphery and a bearing hole penetrating each of the arm plates at a position inward from the outer periphery and spaced from the cam groove, the arm plates being assembled with the housing so that the shafts pass through the bearing holes and permit rotation of the lever between an assembled position, an initial position and a connection position, the arm plates being resiliently fit to the shafts after being deformed outward due to interference with the shafts and the lever being assembled to straddle the housing with the arm plates accommodated in the inner spaces of the outward deformation preventing walls at the assembled position, the arm plates being engaged with the mating housing at the initial position and the lever being rotated from the initial position toward the connection position while keeping an engaged state, thereby exhibiting a force multiplying action to proceed with a connecting operation of the two housings; each arm plate including a thin portion surrounding the bearing hole and a thick portion adjacent at least the entry to the cam groove so that the thin portion enters the inner space of the outward deformation preventing wall at the assembled position and so that the thick portion enters the inner space of the outward deformation preventing wall when moving from the initial position toward the connection position and contacts the outward deformation preventing wall before the arm plate is deformed excessively out.