Hot nozzle for use with a side-gate runnerless injection molding system

A hot nozzle for use with a side-gate runnerless injection molding system wherein a molten resin injected from an injection molding machine is charged into cavities of a mold via the hot nozzle in a lateral direction therefrom, and wherein gates of molded products are severed by a relative movement between the hot nozzle and the mold, comprising:

• a base portion;
• and
• a nozzle portion adapted to be inserted into a nozzle hole formed in the mold;
• said base portion and said nozzle portion being formed by a tubular body made of a conductive metal having a predetermined electrical resistance, said tubular body including a plurality of outlet holes formed in a front part of said nozzle portion and opened in a lateral side thereof, and including at least one pair of longitudinal slits extending substantially over the length of said tubular body in an axial direction thereof except at least said front part of said nozzle portion to divide said body into at least two sections, each of said sections including means for connection to a source of electric power, so that said tubular body is heated mainly at said front part of said nozzle portion when electric power is applied between two sections of said tubular body divided by said slits, each of said slits having a front portion including a pair of bifurcated parts, and each of said bifurcated parts including a front end positioned adjacent corresponding one of said outlet holes.