| abstract |
A high-performance gasket ( 1 ) capable of coping with a reduction in size and developing a sealing property without producing a squeeze-out at the time of attachment and using a material having a hardness range of 30 to 80 degrees (JIS durometer type A), wherein the requirement of W 1 /W 0 <0.9 is satisfied where the bonding width of a base part ( 1 a ) is (W 0 ) and the width thereof at a position half a height from the bonding part of the base part ( 1 a ) to the tip end of a main bead part ( 2 ) is (W 1 ), the requirement of 1.15<H/W 0 <1.80 is satisfied where the height from the bonding part of the base part ( 1 a ) to the tip end of the main bead part ( 2 ) is (H), the requirement of L/W 0 >=3 is satisfied where the length of the non-bonded portion of the base part ( 1 a ) around the cross-section thereof excluding the bonded portion is (L), and the compressibility of the gasket when compressed is 13.5% or higher. |