PURPOSE: To increase the durability of a lead pin, and provide a wiping effect for a contact section by providing a socket body with a cam section for reducing the elasticity of the lead pin and horizontally rotating an electrical part at the time of fitting a presser cover.

CONSTITUTION: An IC chip board 6 is inserted in a socket body 1, with a lock plate 3 kept internally inclined about a rotating shaft 3a, and an electrode section 6a is placed on the contact section 2a of a lead pin 2. When the coupling section 5a of a presser cover 5 is placed on the plate 3 and extended in a D direction, a spring section 5b pushes down the board 6 and turns the lock plate 3 about the shaft 3a. In this case, the board 6 slightly rotates horizontally due to the action of a cam section 4, and the electrode section 6a slides on the contact section 2a, thereby performing a wiping process for removing an oxide film on the surface of the section 2a. Furthermore, the pin 2, when made of such a material as hardly undergoing elastic deformation, can be increased in durability, and improper electrical connection can be prevented via a wiping effect.