发明名称 Flexible hose for a vacuum cleaner and fabricating method thereof
摘要 Disclosed is a flexible hose for a vacuum cleaner and a fabricating method thereof. The fabrication method includes the steps of: extruding a primary extrusion molding band 13 having a larger size than a size of a finished state while embedding an electric wire 1 in the primary extrusion molding band 13 at a first extruder 12 ; molding a multi-extrusion molding band 10 in the size of the finished state at a sizing mold 14 ; and winding the multi-extrusion molding band 10 at a predetermined angle at a bonder and bonding a bonding portion 2 of the electric embedding portion 3 with a bonding end 4 of the semicircular portions 5 positioned on both sides of the multi-extrusion molding band 10 by using adhesive 8.
申请公布号 US2007199172(A1) 申请公布日期 2007.08.30
申请号 US20070796109 申请日期 2007.04.26
申请人 SUNGKWANG BEST CO., LTD. 发明人 PARK II-SOOK
分类号 A47L9/24;B32B1/08 主分类号 A47L9/24
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