Multicore connector for connecting a plurality of contact pads of a circuit board to a plurality of contacts in a one-to-one correspondence

A connector for connecting a plurality of signal lines to a specific electronic apparatus which uses the signal lines, the connector comprising:

• a first structural unit which includes a board having a plurality of contact pads to be electrically connected to said plurality of signal lines and a substantially hollow cylindrical shaft to rotate, said shaft passing through the board, extending perpendicular to the board and having a projecting part protruding from one side;
• and
• a second structural unit which includes a bottom, a plurality of spring contact sections provided on the bottom and a rotatable roller provided on the bottom, each of the spring contact sections facing, at one end, the corresponding one of the contact pads and being connectable, at the other end, to the specific electronic apparatus,
• wherein the first structural unit is to be inserted, in part, into the second structural unit, and the roller comes close to the shaft when the shaft and a part of the first structural unit are inserted into the second structural unit, and when the first structural unit is inserted, in part, into the second structural unit and the shaft is rotated through a specific angle, the projecting part comes to a position beneath to push the board against the contact sections, thereby to bring the contact pads into contact with the contact sections, respectively.