| 摘要 |
PURPOSE: A snake prevention socket for a lighting lamp is provided to prevent a bulb fixed to a socket body from being released though a long time has passed by absorbing vibration vertically transferred as well as vibration transferred from a side. CONSTITUTION: A socket body(1) couples a bulb(10) at a lower part of inside, includes a metal socket(11) where a power line(111) is drawn upwardly, and has an intermediate protrusion(12) on an intermediate outer circumference. An upper conical compression coil spring(2) has a narrow lower part and a wide upper part. A lower conical compression coil spring(3) has a wide lower part and a narrow upper part. A cylindrical external case(4) surrounds an outside of the socket body, and includes an upper protruded step(41) pushing down an upper circumference of the upper conical compression coil spring, and a lower protruded step(42) pushing down a lower circumference of the lower conical compression coil spring. |
