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Patent Searching and Data


Title:
HOSE FOR ELECTRIC VACUUM CLEANER
Document Type and Number:
WIPO Patent Application WO/2018/037873
Kind Code:
A1
Abstract:
The present invention provides a hose, which is unlikely to cause a whistling sound, for an electric vacuum cleaner. This hose 1 for an electric vacuum cleaner has a corrugated hose wall 2. The hose wall 2 has: a small-diameter section 21 where the hose wall is indented toward the inner side of the hose; a large-diameter section 22 where the hose wall protrudes toward the outer side of the hose; and two vertical wall sections 23, 24 that connect between the large-diameter section and the small-diameter section. At least one of the vertical wall sections 23 has a projection portion 4 disposed on the hose inner side at a position spaced apart from the small-diameter section 21 by a prescribed distance in a radially outward direction in such a manner as to extend in a circumferential direction of the hose. The tip of the projection portion 4 is located on the radially outer side from the small-diameter section 21, and the projection portion 4 is exposed as viewed from the side of the hose center line.

Inventors:
TSUCHIYA, Katsumi (TIGERS POLYMER CORPORATION 1-6, Takatsukadai 2-chome, Nishi-ku, kobe-sh, Hyogo Hyogo 71, 〒6512271, JP)
TSUNO, Akihiro (TIGERS POLYMER CORPORATION 1-6, Takatsukadai 2-chome, Nishi-ku, kobe-sh, Hyogo Hyogo 71, 〒6512271, JP)
Application Number:
JP2017/028225
Publication Date:
March 01, 2018
Filing Date:
August 03, 2017
Export Citation:
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Assignee:
TIGERS POLYMER CORPORATION (4-1 Shinsenri Higashimachi 1-chome, Toyonaka-shi Osaka Osaka, 82, 〒5600082, JP)
International Classes:
A47L9/24; A47L9/00; F16L11/11; F16L11/26
Foreign References:
JP2011125585A2011-06-30
JP2009268612A2009-11-19
JP2008296006A2008-12-11
JP2004154369A2004-06-03
US20120018023A12012-01-26
JPH11159668A1999-06-15
JP2009142551A2009-07-02
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