| 摘要 |
PURPOSE: A ground switch device of a distribution board is provided to prevent the deviation of an operation contact from a fixing contact due to an electronic force by using a driving converting section which comprises a ring and an arc pieces. CONSTITUTION: A ground switch device of a distribution board comprises a mounting plate(2), a fixing contact(4), an opening/closing shaft(5), a driving shaft(7), a ring(10), and an arc piece(13). The ring(10) is rotatably installed at one side portion of the opening/closing shaft(5). The arc piece(13) is fixed to a tip end portion of the driving shaft(7). The arc piece(13) is engaged with the ring(10) to transfer the rotational force of the driving shaft(7) to the opening/closing shaft(5).
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