A scroll compressor comprising: an orbiting scroll that has spiral teeth (31L, 31M) on two surfaces; and a pair of fixed scrolls (33, 34) that are installed so as to face said surfaces of said orbiting scroll and that have spiral teeth (33E, 34E) that intermesh with said spiral teeth (31L, 31M) of said orbiting scroll, said pair of fixed scrolls (33, 34) respectively forming compression chambers (32A, 32B) in cooperation with said orbiting scroll, characterized in that: tip seals are mounted only to a groove formed on a tip end surface of said spiral tooth of said fixed scroll that intermeshes with a first spiral tooth of said orbiting scroll and to a groove formed on a tip end surface of said first spiral tooth of said orbiting scroll, said tip seal that is mounted to the groove formed on said tip end surface of said first spiral tooth rises from a bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said first spiral tooth to eliminate a first spiral tooth height gap, and said tip seal that is mounted to the groove formed on said tip end surface of said spiral tooth rises from the bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said spiral tooth to eliminate a second spiral tooth height gap, wherein pressure inside a sealed vessel accommodating said orbiting scroll and said fixed scrolls (33, 34) is equal to an intake pressure; seal ring grooves (31E, 31F) for installing seal rings that seal said orbiting scroll and said fixed scrolls (33, 34) are formed on said orbiting scroll or said fixed scrolls (33, 34); and a seal ring groove that is formed on a surface on which said spiral tooth, to which said tip seal is mounted, is disposed has an inside diameter that is less than that of a seal ring groove that is formed on a surface on which said spiral tooth to which said tip seal is not mounted is disposed. an orbiting scroll that has spiral teeth (31L, 31M) on two surfaces; and a pair of fixed scrolls (33, 34) that are installed so as to face said surfaces of said orbiting scroll and that have spiral teeth (33E, 34E) that intermesh with said spiral teeth (31L, 31M) of said orbiting scroll, said pair of fixed scrolls (33, 34) respectively forming compression chambers (32A, 32B) in cooperation with said orbiting scroll, characterized in that: tip seals are mounted only to a groove formed on a tip end surface of said spiral tooth of said fixed scroll that intermeshes with a first spiral tooth of said orbiting scroll and to a groove formed on a tip end surface of said first spiral tooth of said orbiting scroll, said tip seal that is mounted to the groove formed on said tip end surface of said first spiral tooth rises from a bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said first spiral tooth to eliminate a first spiral tooth height gap, and said tip seal that is mounted to the groove formed on said tip end surface of said spiral tooth rises from the bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said spiral tooth to eliminate a second spiral tooth height gap, wherein tip seals are mounted only to a groove formed on a tip end surface of said spiral tooth of said fixed scroll that intermeshes with a first spiral tooth of said orbiting scroll and to a groove formed on a tip end surface of said first spiral tooth of said orbiting scroll, said tip seal that is mounted to the groove formed on said tip end surface of said first spiral tooth rises from a bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said first spiral tooth to eliminate a first spiral tooth height gap, and said tip seal that is mounted to the groove formed on said tip end surface of said spiral tooth rises from the bottom surface of said groove due to a pressure difference between compression chambers that are partitioned off on two sides of said spiral tooth to eliminate a second spiral tooth height gap, wherein pressure inside a sealed vessel accommodating said orbiting scroll and said fixed scrolls (33, 34) is equal to an intake pressure; seal ring grooves (31E, 31F) for installing seal rings that seal said orbiting scroll and said fixed scrolls (33, 34) are formed on said orbiting scroll or said fixed scrolls (33, 34); and a seal ring groove that is formed on a surface on which said spiral tooth, to which said tip seal is mounted, is disposed has an inside diameter that is less than that of a seal ring groove that is formed on a surface on which said spiral tooth to which said tip seal is not mounted is disposed.