Suction implement for vacuum cleaner

Abstract

PURPOSE: To prevent the contact of a sucked air flow and a metallic mold butting part of the inner wall of a pipe by executing electrostatic hair planting to the inner wall surface of an inverted chevron-shaped pipe which communicates with a suction port for sucking dust, etc. CONSTITUTION: Short fibers 33 are subjected to electrostatic hair planting onto the wall surface in a pipe 28, and a step difference of a metallic mold butting part 34 on the wall surface in the pipe generated inevitably due to the constitution of a metallic mold is covered with the short fibers 33. As a result, the contact of a sucked air flow and this butting part 34 is prevented, generation of a wind-through sound caused by the step difference of this butting part 34 is prevented, and also, this wind-through sound, etc., are absorbed. COPYRIGHT: (C)1991,JPO&Japio

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    JP-2014008304-AJanuary 20, 2014Hitachi Appliances Inc, 日立アプライアンス株式会社Suction port unit of vacuum cleaner
    US-6035485-AMarch 14, 2000Emerson Electric Co.Vacuum cleaner muffler/deflector