| 摘要 |
A bipin fluorescent-lamp holder has a housing formed with an outwardly open housing mouth and a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot. The rotor is rotatable between an installation position with the rotor slot aligned with the slot and an angularly offset contact position with the slot not aligned with the mouth. The rotor and housing are so dimensioned as to receive the pins extending parallel to the axis and to move the pins in a circular orbit centered on the axis on rotation of the rotor in the housing, and contacts in the housing diametrally flanking the axis each having a main part lying outside the orbit and a contact part engageable into the orbit. The contacts pins are aligned with the slot and project into ends of the slot and into engagement with the pins only in the contact position of the rotor.
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