Patent ID: 6899557

Claim:
A detection switch ( 10 ) mounted in a card socket ( 30 ) for detecting the presence of a card ( 33 ) inserted into the socket, the detection switch including two contact members ( 11 A, 11 B) which comprising a first and a second contact members arranged in series along one longitudinal side of the socket, each contact member having a contact section formed on an end thereof adjacent the contact section of the other contact member, the contact section of the first contact member ( 11 A) including a front contact formed in a card width-parallel plane and defining a first switch contact ( 14 ) adapted to be contacted by the card and deflected in the card width-parallel plane when the card is inserted into the socket, the detection switch ( 10 ) comprising the contact section of the second contact member ( 11 B) including a rear contact formed in a card thickness-parallel direction and defining a second switch contact ( 15 ) adapted to be deflected and wiped in the card thickness-parallel direction by the first switch contact when the card is inserted into the socket, wherein the wiping action between the first and second switch contacts assures a stable switching function.