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Patent Searching and Data


Title:
VENTILATION DEVICE AND VEHICULAR LAMP
Document Type and Number:
WIPO Patent Application WO/2015/162830
Kind Code:
A1
Abstract:
Disclosed is a ventilation device (10) that discharges water vapor within the housing of a vehicular lamp to the outside, and that comprises: an attachment part (11) to be attached in communication with a ventilation opening in the housing; and a ventilation path (20) that is a gap formed from the upstream side toward the downstream side, and that has a bent part which bends from a first direction (P) to a second direction (Q). In the ventilation path (20): the cross-sectional area S3 of a cross section orthogonal to the second direction (Q) on the downstream side is constituted by making the cross-sectional area S2 of a cross section orthogonal to the first direction (P) on the entrance side of the bent part larger than the cross-sectional area S1 of a cross section orthogonal to the first direction (P) on the upstream side, and making the length, in the first direction (P), on the exit side of the bent part which is bent from the cross-sectional area S2 shorter than the length, in the second direction (Q), of the cross-sectional area S1; and thereby, cross-sectional area S1 ≤ cross-sectional area S3.

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Inventors:
YANO YOUZOU (JP)
Application Number:
PCT/JP2014/084259
Publication Date:
October 29, 2015
Filing Date:
December 25, 2014
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
F21S8/10; F21V31/03; F21W101/10; F21W101/12; F21W101/14; F21W107/00; F21Y101/00
Foreign References:
JPH03124408U1991-12-17
JPS6084003U1985-06-10
JPH07320507A1995-12-08
Attorney, Agent or Firm:
FURUBE, Jiro et al. (JP)
Jiro Furube (JP)
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