| 摘要 |
A lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down the electric wire, a central metal contact plate and side metal contact plate fastened to the socket body to connect the tip contact and ring contact of the lamp bulb to a respective conductor in the electric wire. The side metal contact plate has a longitudinal projecting spring strip raised from one side and then turned longitudinally downward toward the orifice of the socket body, which projecting spring strip is disposed in contact with the ring contact of the lamp bulb to give it an inward pressure when the lamp bulb is threaded into the socket body.
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