| 摘要 |
PURPOSE:To eliminate the danger of an electric shock by comprising an interlock unit so as to perform a closing operation only when a glower unit is coupled with a lighting unit. CONSTITUTION:A first coupling means 3 consists of a recess section 6 formed at the lower surface of a case 2, a cylindrical contact section 8 with an inverted L- shaped guide groove 7 arranged on a lower inner surface, an insulating plate 9 and terminals 10 and 11 arranged at the upper part, and a spring 12 arranged between the top plate 6a of the recess section 6 and the insulating plate 9, and the output end of a high voltage generation circuit 5 is connected to the contact section 8 and the terminals 10 and 11. Besides, an interlock unit 4 is fixed on the top of the top plate 6a in the recess section 6 of the case 2 so that its operation lever 4a can perform the opening and closing operations based on the upward and downward movement of the insulating plate 9. A second coupling means 14 consists of a shell section 18 composed of metal members, a pair of protrusions 19 protruded on the external surface of the shell section 18, and terminals 20 and 21 arranged insulatedly on the top of the shell section 18 against the shell section 18. |
