PC card electrical connector with expandable ejector

A PC card electrical connector comprising:

• a housing having a receiving slot for receiving a PC card;
• a case having a bottom, an outside wall and an inside wall adjacent to said receiving slot;
• an ejector having a front button and a stepped-down rear arm with a work face for forming a stepped space with said inside wall;
• first spring means provided between said case and said ejector for forwardly biasing said ejector in a longitudinal direction;
• an intermediate bar having a bottom, a rear work face, a front load face for abutment with said work face of said ejector, and a cam follower provided on said bottom near said front load face;
• second spring means attached to said inside wall of said case for biasing said load face of said intermediate bar toward said rear arm of said ejector;
• an ejector bar having a front load face for abutment with said rear work face of said intermediate bar;
• a cam member movable in a direction perpendicular to said longitudinal direction on said bottom of said case and having an engaging portion;
• a first cam channel provided on said ejector so as to engage said cam member such that when a PC card is inserted, said engaging portion is held at a lock position where said ejector button is held at a depressed position and, when said ejector button is depressed firstly (first depression), said engaging portion is released from said lock position and, when said ejector button is depressed secondly (second depression), said ejector is moved to a projected position while said engaging portion is returned to said lock position;
• and
• a second cam channel provided on said bottom of said case so as to engage said cam follower such that upon insertion of said PC card and said first depression, said load face of said intermediate bar is placed in said stepped space and, upon said second depression, said load face of said intermediate bar is brought to a position opposed to said work face of said ejector, thereby enabling to eject said PC card from said receiving slot.