Plug blade structure with a shallow recess and a reinforced...

Details Plug blade structure with a shallow recess and a reinforced... Plug blade structure with a shallow recess and a reinforced...

H - Electricity

01

R

H01R 13/40 (2006.01) H01R 13/04 (2006.01) H01R 13/44 (2006.01) H01R 43/24 (2006.01)

Patent

CA 2374691

A plug blade structure comprises an enclosed section (21-21E) and an exposed section (22-22E). The exposed section includes a wider front section (221-221E) and a narrower rear section (222-222E). The enclosed section includes a shallow recess (211-211E) in a front end thereof for filling molten plastic material into the narrower rear section. A transverse through-hole (223-223E) extends from a face of the narrower rear section to the other face of the narrower rear section. A reinforcing guide slot (225-225E) is defined in the narrower rear section and communicated with the transverse through-hole. The transverse through-hole and the reinforcing guide slot guide the molten plastic material from a face of the narrower rear section to the other face of the narrower rear section such that the air on the faces of the metal blade can be well expelled to thereby allow smooth injection and that the resultant insulting layer (220-220E) formed on the narrower rear section has flush surfaces.

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