| 摘要 |
PROBLEM TO BE SOLVED: To prevent misregistration.turning up of a blade cap at the base part of a plug blade, and heighten an anti-tracking property. SOLUTION: For a power supply plug, composed of a blade 2 to be plugged in the blade insertion hole of the receptacle like plug socket or table tap, and a plug main body 1 protecting the connection part of the blade 2 and a cord 3, holding the blades 2 with prescribed positional relation, a blade cap 4, made of insulating material, purposing to fill the space opened between the blade 2 and the blade insertion hole which is formed when the blade 2 is inserted into the blade insertion hole, is installed at the base part of the blade, and the blade cap 4 is fitted in a groove 2a formed at the base part of the blade 2.
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