| 摘要 |
PURPOSE: A distribution board with earthquake-proof function is provided to block a shock wave directly delivered to internal electrical equipment by absorbing the shock wave applied to the horizontal direction. CONSTITUTION: Top LM guides(262,264) are arranged on the upper part of a middle plate(220) in Y-axis direction. Bottom LM bearings(252,254,256,258) are combined with bottom LM guides(242,244,246,248). Top LM bearings(272,274,276,278) are coupled to a top plate(230). Bottom tension springs(282,284,286,288) are parallel to a bottom plate. Top tension springs(292,294,296,298) are parallel to the middle plate.
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