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(11) | EP 0 949 716 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Plug protectors |
(57) A protector 1 for a mains electrical plug 2 has a plastics housing 10 pushed over
the pins 22 to 24 of the plug. A spring metal plate 30 extends transversely across
the housing having a tongue 32 inclined forwardly at an angle of about 10 degrees.
The tongue 32 engages the earth pin 22 of the plug 2 and grips the pin to prevent
it being pulled out rearwardly. The tongue 32 is released by a key 52 inserted in
the protector 1 on the rear surface of the tongue and rotated to push the tongue forwardly
out of engagement with the pin 22, thereby enabling the protector to be removed from
the plug 2. |