Memory card connector with improved sliding structure to reduce friction

A push-push type memory card connector, comprising:

• an insulative housing defining a card receiving cavity for insertion of a memory card;
• a plurality of contacts retained in the insulative housing with contact portions protruding into the card receiving cavity;
• a card eject mechanism comprising a slider and a locking member fixed to the slider, the locking member comprising a protrusion which is sidewardly stamped to form a dimple;
• and
• a metal shell attached to the insulative housing and comprising a top wall covering the card receiving cavity, the top wall defining a slit for the protrusion moveable therein;
• wherein
• the silt includes a first part and a contracted second part communicating with each other, the first part comprising opposite first and second edges and the second part comprising opposite third and fourth edges under a condition that the second and the fourth edges are arranged in a single line, and wherein
• an arced surface of the dimple is driven to abut against the third edge with insertion of the memory card into the card receiving cavity.

A memory card connector, comprising:

• an insulative housing defining a card receiving cavity for insertion of a memory card;
• a plurality of contacts retained in the insulative housing with contact portions protruding into the card receiving cavity;
• a metallic shell attached to the housing to cover the card receiving cavity and defining a slit along a card mating direction;
• a card eject mechanism comprising a slider back and forth moveable along a card insertion direction, and a locking member fixed to the slider, the locking member deflectable in a transverse direction perpendicular to said card mating direction, and equipped with a protrusion extending in a vertical direction perpendicular to both said card mating direction and said transverse direction to be received in said slit;
• wherein
• at least one of said protrusion and said slit is equipped with an arc structure so as to result in less friction between then protrusion and the shell during back and forth movement of said locking member in said card mating direction.