초록 ▼

A ventilation member having: a breathable film transmitting gas passing through an opening portion of a housing in a state in which the breathable film is fixed to the opening portion; and a support including a supporting portion for supporting the breathable film and an insertion portion to be inse

A ventilation member having: a breathable film transmitting gas passing through an opening portion of a housing in a state in which the breathable film is fixed to the opening portion; and a support including a supporting portion for supporting the breathable film and an insertion portion to be inserted into the opening portion of the housing; wherein the insertion portion has a lock portion in an insertion-start-side end portion thereof, the lock portion having a tapered forward end, while the insertion portion is divided into a plurality of parts circumferentially at least on an insertion start side thereof.

대표청구항 ▼

What is claimed is: 1. A ventilation member comprising: a breathable film transmitting gas passing through an opening portion of a housing in a state in which said breathable film is fixed to said opening portion; and a support including a supporting portion for supporting said breathable film and

What is claimed is: 1. A ventilation member comprising: a breathable film transmitting gas passing through an opening portion of a housing in a state in which said breathable film is fixed to said opening portion; and a support including a supporting portion for supporting said breathable film and an insertion portion to be inserted into said opening portion of said housing; wherein said insertion portion is divided into a plurality of parts circumferentially at least on an insertion start side thereof; a reinforcement material bonded to said breathable film, so that said reinforcement material and said breathable film form a laminate; and wherein an air permeability of said laminate is in a range of 0.1-300 sec/100 cm3 and said laminate has a water resistant pressure of not less than 1.0 kPa. 2. A ventilation member according to claim 1, wherein a through hole is formed in said support, and said breathable film is fixed to said supporting portion so as to cover said through hole. 3. A ventilation member according to claim 1, said insertion portion includes a plurality of leg portions at least on the insertion start side, and at least one of said leg portions is provided with a lock portion on the insertion start side thereof. 4. A ventilation member according to claim 3, wherein said leg portions include at least one leg portion which is not provided with said lock portion. 5. A ventilation member according to claim 3, wherein said support has a ring shape, a minimum ring width of said ring shape is larger than a distance defined between a pair of said leg portions at an end of the insertion start side of said insertion portion. 6. A ventilation member according to claim 1, wherein a plurality of through holes are formed in a surface of said support covered with said breathable film. 7. A ventilation member according to claim 1, wherein said support includes a seal portion on a surface of said supporting portion facing said housing. 8. A ventilation member according to claim 1, wherein said support includes a protective portion covering at least a part of said breathable film from above of said breathable film. 9. A ventilation member according to claim 1, wherein said breathable film includes a PTFE porous material. 10. A ventilation member according to claim 1, wherein said breathable film is subjected to liquid-repellent treatment. 11. A vented housing comprising a ventilation member according to claim 1, which is fixed to said opening portion of said housing. 12. A ventilation member according to claim 1, wherein said reinforcement material is bonded to at least one side of said breathable film.