US Patent 7134892 Socket for electrical parts

A socket for an electrical part includes a socket body to which an electrical part is accommodated, the socket body having a base portion to which a number of contact pins and a movable member disposed to the socket body to be vertically movable. The movable member includes a movable member body disposed substantially horizontally and formed with the insertion holes into which contact pins are inserted, respectively, and a projection piece projecting upward from the movable member body. The projection piece has an upper surface to which a pressed surface is formed, and when the pressed surface is pressed, the movable member is lowered.