| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of type of bases by aiming at a common use of a lamp holder for a different type of a base having compatibility in a practical use in a dimension other than an entire length of the base, and as a result, a stock control for each different type of the bases can be simplified and a manufacturing loss due to the change in a type of the base can be reduced, thereby achieving saved cost performance. SOLUTION: An E-shaped base includes an eyelet part 1, a shell part 2, and a skirt part 4 connected to the shell part 2, wherein the base has a means for the common use of the lamp holder for another base which has compatibility in a practical use in the dimension other than the entire length of the base. |
