Title:
WIND NOISE REDUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/121595
Kind Code:
A1
Abstract:
[Problem] To provide a wind noise reduction device having a simple structure in which environmental sound is not reduced, while vibration of a wind-blocking part itself due to air currents generated on the wind-blocking part is suppressed. [Solution] This wind noise reduction device 1 comprises: a wind-blocking part 2 having a first surface 21 facing an ear front surface, and a second surface 22 on the opposite side from the first surface 21, the first surface 21 being demarcated into four sides comprising a front end 23, a rear end 24, an upper end 25, and a lower end 26; one or more support parts 3 standing upright from the first surface 21 of the wind-blocking part 2; and an engagement part 4 having an insertion hole or insertion opening 44 for holding the chin strap B of a helmet, the position of the insertion hole or insertion opening 44 being between the front edge of the support part 3 and a rear edge 33. The wind-blocking part 2 is supported by a structure supported at three or more support points by the front end 23 of the wind-blocking part 2 and the support part 3.
Inventors:
TAKAZAWA TAKASHI (JP)
Application Number:
PCT/JP2019/032044
Publication Date:
June 18, 2020
Filing Date:
August 15, 2019
Export Citation:
Assignee:
TAKAZAWA TAKASHI (JP)
International Classes:
A42B3/16
Domestic Patent References:
| WO2002028212A1 | 2002-04-11 | |||
| WO2008020359A2 | 2008-02-21 |
Foreign References:
| JP3172282U | 2011-12-15 | |||
| US20070136921A1 | 2007-06-21 | |||
| US20150090522A1 | 2015-04-02 | |||
| US5323493A | 1994-06-28 | |||
| JP2008289832A | 2008-12-04 | |||
| JP2002156613A | 2002-05-31 |
Attorney, Agent or Firm:
MARUYAMA Osamu (JP)
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