Vent structure

摘要

A housing (10) is provided with an opening (11) having a tapered surface (12). A vent member (2) to be attached to the opening (11) includes a support body (3) having a vent passage (30), a waterproof gas-permeable membrane (4), and a cover (5). The support body (3) has a base portion (31) to which the waterproof gas-permeable membrane (4) is bonded, and a stem portion (32) extending from the base portion (31) so as to be engaged with an inside surface of the housing (10). The stem portion (32) is fitted with a seal member (6), and this seal member (6) is pressed against the tapered surface (12) in the opening (11) by a pressing portion (34).

主权项

1. A vent structure comprising:
a housing provided with an opening having a tapered surface whose diameter increases from an interior space of the housing toward an exterior space thereof; a vent member including: a support body fitted into the opening and having a vent passage opening into the internal space; a waterproof gas-permeable membrane that closes the vent passage; and a cover that covers the waterproof gas-permeable membrane; and a seal member that seals a gap between the housing and the support body around the vent passage, wherein the support body is provided with a through-hole constituting the vent passage, and has: a base portion to which the waterproof gas-permeable membrane is bonded; a tubular stem portion fitted with the seal member and extending from the base portion so as to be engaged with an inside surface of the housing; and a pressing portion that presses the seal member against the tapered surface in the opening.