| 摘要 |
PROBLEM TO BE SOLVED: To provide a dustproof jack capable of preventing the entrance of dusts from an insertion hole of a jack for inserting a fitting plug in a single jack when the fitting plug is not inserted. SOLUTION: A jack 60 has an insertion hole 11 for inserting a fitting plug and contact springs 20, 30 which are electrically connected to an electrode of the fitting plug. A shutter which blocks the insertion hole 11 when the fitting plug is not inserted, and opens the insertion hole 11 by the insertion of the fitting plug when the fitting plug is inserted is assembled in the jack 60. |
