FLUORESCENT LAMP

摘要

PURPOSE:To enable secure positioning and fixing of a base by providing a large diameter section at the tubular section for fixing the base while making deep the fitting groove at said large diameter section thereby enforcing the stopping strength. CONSTITUTION:A tubular section for fixing a base is provided on a body 1 while a fitting groove 9 is provided on the outer-circumference of said tubular section 4 along the axis. Then length of the screwed section 5 provided on said tubular section 4 is made shorter than that of the screwed section 7 of the base 6, while a large diameter section 8 larger than the screwed section 5 is formed at the end of the screwed section 5 of the tubular section 4. The inner face at the open edge side in a base 6 screwed onto the screwed section 5 where the screwed section 7 isn't formed is faced against said large diameter section 8, then the portion on the inner face at th open edge section of the base 6 facing against the fitting groove 9 is pressure deformed to form a stopping section 12 profecting into the fitting groove 9.