| 摘要 |
PURPOSE: A ground terminal of a spring type having a top and bottom electric contact point structure, capable of reducing a manufacturing cost and increasing the reliability of operation is provided to effectively operate contraction blanking by applying pressure to a top and bottom ground unit. CONSTITUTION: An upper body forms an upper ground unit(11) which is folded in an upper longitudinal direction. A lower body forms a lower ground unit(21) which is folded in a lower longitudinal direction. A coil spring unit(30) is spirally bent to the outside around the upper/lower ground unit. The upper ground unit includes in order to operate the compression upward and downward.
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