Abstract: A PC cartridge having enhanced front connecting structure is disclosed. Two folded hooks with n-shaped structure are on the same side of the front connector and at two front corners of the upper shell. The folded hook defines a small height and has a rearward opening. Further, first and second flanges are located on the same side of the front connector and at the front ends of the packing rubbers located on the bottom shell. Especially, first and second flanges are parts extended from the packing rubbers, whereby retaining slots are formed between upper and bottom shells. Both the second flanges comprise a third flange projected forward. The folded hooks conform to the third flange and extend into the retaining slots so as to engage the upper shell with the bottom shell.

Abstract: A PC cartridge having enhanced front connecting structure is disclosed. Two folded hooks with n-shaped structure are on the same side of the front connector and at two front corners of the upper shell. The folded hook defines a small height and has a rearward opening. Further, first and second flanges are located on the same side of the front connector and at the front ends of the packing rubbers located on the bottom shell. Especially, first and second flanges are parts extended from the packing rubbers, whereby retaining slots are formed between upper and bottom shells. Both the second flanges comprise a third flange projected forward. The folded hooks conform to the third flange and extend into the retaining slots so as to engage the upper shell with the bottom shell.

Abstract: A PC cartridge is provided at two front corners of an upper shell with two folded hooks that define a predetermined small height and rearward openings, and at two front ends of two packing rubbers attached to two sides of a bottom shell of the PC cartridge with two retaining slots, each of which includes a forward projected flange portion. When the upper shell is closed onto the bottom shell, the folded hooks extend into the retaining slots to fitly engage with the flange portions and therefore be retained to the retaining slots. The engagement of the folded hooks with the flange portions of the retaining slots produces a vertical coupling stress, enabling the coupled upper and bottom shells of the PC cartridge to resist increased pull applied on them without easily becoming deformed.