| 摘要 |
PROBLEM TO BE SOLVED: To reduce the cost of a mark tube, by providing one which excels in fixing work and a holding function of the mark tube to an electric wire, by providing a simple structure to an electric wire coming-off preventing function of standard products, whose electric wire insertion hole is round in shape, to solve the problem of high cost in the conventional mark tube, through the use of specially formed one for electric wire coming off prevention. SOLUTION: The structure for preventing the mark tube from coming off the electric wire is achieved by an elastic friction at a cut part, by providing a cut on the outer peripheral part of the mark tube whose insertion hole, to which an electric wire available on the market as the standard products is inserted, is round, and by penetrating the electric wire inserted to the cut through the insertion hole. |
