Patent ID: 6981896

Claim:
A plug inner frame comprising: a frame in the form of a block; and at least two blades securely held by the frame, each said blade including an enclosed section and an exposed section, each said blade including an end having a wire-receiving groove, a neck being defined between said wire-receiving groove and said exposed section, each said neck being so twisted that said wire-receiving grooves of said blades face the same direction; said exposed section of each said blade including a wider front section and a narrower rear section, said narrower rear section including a first face and a second face opposite to said first face, a transverse through-hole being defined in said narrower rear section and extending from said first face through said second face, further comprising a reinforcing guide slot defined in said narrower section and communicating with said transverse through-hole, said reinforcing guide slot extending from said first face through said second face of said narrower rear section.