PURPOSE: To obtain the titled device capable of maintaining vacuum of the inside of a reserve vacuum chamber, by arranging side pieces confronting with each other on both end faces of a seal roll so that the side pieces are covered with a bearing housing.
CONSTITUTION: Fluorine resin 23 is fused together with side pieces 21, 22 sealing both end face sides of a top and bottom seal rolls 16, 17 of a reserve vacuum chamber and the side piece 21 is pressed against the roll movably in an axial direction by a coil spring 24. Even if the side pieces 21, 22 is covered with a bearing housing 26 and the side piece 21 is moved in the axial direction along with the seal roll 16 through thermal expansion of the seal rolls 16, 17, a leak from a space between the bearing housing 26 and the side piece 21 is reduced drastically.
KURODA KOUICHI
KITAMURA HAJIME
TOUKAI MASAYA
KATOU KENICHI
HIRAISHI NOBUYUKI
SHINETSU CHEM IND CO
| JPS57195745A | 1982-12-01 | |||
| JPS57195748A | 1982-12-01 |