| 摘要 |
A plug ( 20 ) has a guide bar ( 24 ) to be inserter in a socket ( 30 ). The guide bar ( 24 ) has a to-be-held section ( 241 ) at a tip end thereof, a dent ( 244 ) at a middle portion thereof, and a sub to-be-held section ( 242 ) at a base end thereof. When making an engagement, the plug ( 20 ) is slanted relative to the socket ( 30 ), so that the guide bar ( 24 ) contacts contact points (P 1 , P 2 ). When the plug has been inserted into a depth end of the socket, the to-be-held section ( 241 ) and the sub to-be-held section ( 242 ) are held by a holding section ( 342 ) and a sub holding section ( 343 ) of the socket ( 30 ), thereby stabilizing engagement posture.
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