| 摘要 |
<p>PURPOSE: A wire drum using a double wall tube is provided to reduce manufacturing costs by lightening the weight thereof and improving shock resistance because a drum body is comprised with a PE double wall tube. CONSTITUTION: A wire drum using a double wall tube comprises a pair of side plates(10,10a), a PE double wall tube(20), and multiple connection fittings. A protrusion(12) is respectively protruded from the inner center of the pair of side plates. Both ends of the PE double wall tube are fitted in the protrusions in a single body. The multiple connection fittings are installed while being perforated through the pair of side plates and the PE double wall pipe.</p> |
