Patent Number: 8,821,226

Title: Vent member

Abstract: A vent member (1) includes a support body (2) provided with a through-hole (3), a permeable membrane (6) closing the through-hole (3) in the support body (2), and a cover part (10) covering the permeable membrane (6). A ventilation hole (10a) is made in a ceiling portion (11) of the cover part (10) and a notch (10b) is made in a side wall portion (12) thereof. These ventilation hole (10a) and notch (10b) function as a passage for ventilation between the interior and the exterior of the cover part (10). The ventilation hole (10a) establishes a positional relation that it does not overlap a permeable region of the permeable membrane (6) in the axial direction. Further, the side wall portion (12) extends to the lower side in the axial direction below a position at which the permeable membrane (6) is disposed, and the permeable membrane (6) is protected entirely along a circumferential direction by the side wall portion (12). The permeable membrane (6) is disposed on a mesa-like portion (14) that is convex to the upper side in the axial direction.

Inventors: Yano; Youzou (Osaka, JP), Shimazaki; Yuuta (Osaka, JP), Nishimori; Toshimasa (Osaka, JP), Sugou; Yuuki (Osaka, JP), Ikeyama; Yoshiki (Osaka, JP)

Assignee: Nitto Denko Corporation

International Classification: B60H 1/24 (20060101); F21V 31/03 (20060101)

Expiration Date: 9/02/12018