| 摘要 |
Cement-free lamp base with spring locking. Lamps are normally joined with cement, which emits unhealthy chemicals when the lamp is switched on. This problem has been solved by replacing the cement with a cylindrical torsion spring (1) which tightly encloses a cylindrical part of a bulb (2) and has both of its ends connected in such a manner to a base (4) that the torsion spring (1) friction-locks the bulb (2) irrespective of whether the lamp is being screwed into or unscrewed from the socket. |
