| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a telescopic extension pipe, excellent in the dustproofing properties and electrical safety, capable of securing the strength and durability of a conductor storage part even if the conductor storage part is disposed outside of an outer pipe and an inner pipe. SOLUTION: The telescopic extension pipe consists of the outer pipe 30 and the inner pipe 31 which slide in the axial direction from each other, and an outer pipe side conductor storage part 40 and an inner pipe side conductor storage part 43 disposed slidably each other on the outer side of the respective pipe bodies. The outer pipe side conductor storage part 40 is a cylinder body 39 with a lid body 36 and a bottom body 38 integrated with each other. With this structure, the strength and durability of the conductor storage parts can be secured, and the telescopic extension pipe, excellent in the dustproofing properties and electrical safety, can be provided. COPYRIGHT: (C)2006,JPO&NCIPI
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