| 摘要 |
The lip-type seal comprises six members including the external annulus (20), the first seal member (30), the reinforcement member (40), the retention member (50), the second seal member (60) and the internal annulus (70). The first seal member (30) is made of elastomer and the second seal member (60) is made of synthetic resin. The reinforcement member (40) is formed as the insertion member in the first seal member (30) so that the reinforcement member (40) extends as far as the end of the hermetic space side of the first seal member (30) and the first seal member (30) exists on both sides of the reinforcement member (40). The reinforcement member (40) has flexibility to provide an appropriate tension which is generated by the deflection thereof, to the seal part (31a) when the inner pressure P in the hermetic space A becomes high, in a condition that the lip-type seal is attached to a compressor.
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