Abstract: A decoupler for exhaust pipe of automobiles includes a bellows for absorbing bending and expansion, the bellows being airtight with respect to exhaust gas therein, and an inner, cylindrical sleeve disposed in the bellows for protecting the bellows from the exhaust gas passing through the cylindrical sleeve. A guide member is disposed at one end of the bellows outside of and around at least a portion of the bellows, and a cover member is disposed at the other end of the bellows outside of and around at least a portion of the bellows. A first mesh ring and a second mesh ring are disposed between the guide member and the cover member and form a sliding surface in contact with a body portion of the cover member and circular-arc surfaces of the guide member.

Abstract: The invention discloses a decoupler for exhaust pipe of automobiles including a bellows (10) made of metal and formed in cylindrical and a repeatedly corrugated shapes for absorbing bending and expansion to maintain the exhaust gas to be airtight; an inner sleeve (20) in a cylindrical shape, disposed inward the bellows (10) for protecting the bellows (10) and passing through the exhaust gas at high temperature; a guide member (40) disposed at the one end of the bellows (10) for forming circular-arc surfaces (41, 42) at both ends of a cylindrical portion (43), with respect to the motion center of the bellows (10), wrapped outward the bellows (10); a cover member (50) disposed at the other end of the bellows (10), for having inclined sections (51 and 52) symmetrically formed at the opposing ends of the body portion (53) thereof at a predetermined angle, wrapped outward the bellows (10); first mesh ring (60) and second mesh ring (61) disposed between the guide member (40) and the cover member (50), forming a sli