| 摘要 |
PROBLEM TO BE SOLVED: To improve contact reliability between a probe for electric inspection and a pad for inspection on a printed wiring board. SOLUTION: This probe for electric inspection comprises a probe pin 2 provided with a spiral recessed part (a) at its side surface and its tip part (c) to be brought into contact with and pressed against a pad for inspection, a housing 3 provided with a spiral protruded part (b) at its inner surface part so as to correspond to and be spirally engaged with the spiral recessed part (a) provided for the probe pin 2 to house the probe pin 2, and a spring 4 with its one end fixed to the rear end part of the probe pin 2 and its other end fixed to the bottom part of the housing 3. By moving the housing 3 spirally engaged with the probe pin 2 by the spiral recessed part (a) and protruded part (b) to the side of the tip part (c) of the probe pin 2 with the tip part (c) of the probe pin 2 in contact with the pad for inspection, the probe pin 2 pushed by the spring 4 is characteristically pressed as being rotated by the spirally engaging action of the spiral recessed part (a) and protruded part (b).
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