| 摘要 |
PURPOSE:To simplify the number of the processes of lamp assembly and achieve a secured lamp structure by bringing concave areas formed on an emission bulb into cantact with concave botches formed on an inner case. CONSTITUTION:Concave sections 20 are formed on an emission bulb 8 during its manufacture. On the other hand, an inner case 15 has concave botches 17 each located between cuts 16 formed on a part of the inner case 15. The botch 17 has a spring pole and is slightly movable. Owing to the above constitution, the botches 17 are brought into contact with the internal areas of the concave sections 20 of the emission tube 8 to achieve attachment fixation. In addition, by attaching an outer case 11 around the inner case 15 before a screw 14 is fixed in a hole 18, the movement of the botches 17 detaching from the concave sections 20 can be suppressed. As to the number of the botches 17, a sufficient strength is obtained by providing one botch 17 at each end of about two concave sections 20. |
