发明名称 RESPIRATORY NOSE MASK
摘要 PROBLEM TO BE SOLVED: To restrain dislocation of a mask by a body movement, and reduce gas leakage to the minimum extent by providing a bellows-shaped elastic body between a surface where the mask is brought into close contact with a face and a frame in which the mask is installed. SOLUTION: When a bellows-shaped elastic body 7 is placed between a frame 3 and a mask 1, a peripheral shape of bellows coincides with a peripheral shape of the mask to be connected, and the contour of a recessed line or a pointed line of the bellows exists on a plane. Silicone rubber or the like being a material of the mask is used as a material of the bellows-shaped elastic body, and when it is integrally molded with the mask, a manufacturing cost is reduced, and the easily installing merits are produced. The pitch number, a distance between pitches and a thickness of the bellows are decided by the magnitude of pressure of positive pressure gas to be used, the size of the mask, a dislocation quantity and a dislocation angle to be restrained and a material to be used or the like. A height of the bellows shaped elastic body 7 is set to 10 to 30 mm, and the pitch number is desirable to be 2 to 10 pieces. A thickness of the bellows is also desirable to be 1 to 3 mm.
申请公布号 JPH11397(A) 申请公布日期 1999.01.06
申请号 JP19970153805 申请日期 1997.06.11
申请人 TEIJIN LTD 发明人 CHIN TONGOU;FUJIMOTO NAOTOSHI
分类号 A62B18/02;A61M16/06 主分类号 A62B18/02
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