Socket for electrical parts

A socket for an electrical part comprising:

• a socket body having an electrical part accommodation portion;
• a contact pin provided for the socket body so as to be contacted to or separated from a terminal of the electrical part;
• an open/close member provided for the socket body for pressing the electrical part accommodated on the accommodation portion of the socket body;
• and
• an operation member disposed for the socket body to be vertically movable so as to open or close the open/close member,
• said open/close member including a pressing member for pressing the electrical part and a link mechanism for supporting the pressing member to be openable, said link mechanism comprising a first link disposed to be rotatable to the pressing member and the socket body and a second link disposed to be rotatable to the first link and the operation member,
• wherein when said operation member is moved downward, one end side of the second link is lowered to rotate the first link about the socket body side through the second link and thereby to displace the pressing member from a pressing position at which the electrical part is pressed to a retired position at which the electrical part is attached to or detached from the electrical part accommodation portion, and on the other hand, when said operation member is moved upward, one end side of the second link is moved upward to rotate the first link about the socket body side and thereby to displace the pressing member to the pressing position from the retired position.