US 6,981,704 B2
Gasket
Nobumitsu Okazaki, Okayama (Japan); and Seizo Watanabe, Okayama (Japan)
Assigned to Uchiyama Manufacturing Corp., Okayama (Japan)
Filed on Jul. 14, 2003, as Appl. No. 10/617,790.
Application 10/617790 is a continuation of application No. PCT/JP02/07106, filed on Jul. 12, 2002.
Prior Publication US 2004/0056429 A1, Mar. 25, 2004
Int. Cl. F16J 15/02 (2006.01)
U.S. Cl. 277—638 6 Claims
OG exemplary drawing
 
1. A longitudinally-endless gasket to be mounted within a groove member to provide sealing between the one member and another member when the one member and the another member are fastened to each other, said gasket comprising:
a main body having a sectional shape corresponding to a sectional shape of the groove, with a ratio (H/W) between the a height (H) of said main body in a depth direction of the groove and a width (W) of said main body in a width direction of the groove being 0.8 to 5.0, and
large projecting portions and small projecting portions, each of said large projecting portions formed from large projections projecting from opposite side faces of said main body that are to face opposite inner wall faces of the groove, and each of said small projecting portions formed from small projections projecting from said opposite side faces of said main body that are to face the opposite inner wall faces of the groove,
wherein adjacent ones of said large projecting portions in a longitudinal direction of said main body are disposed at intervals of 30 to 100 mm, and a width of each of said large projecting portions in the width direction of the groove is larger than a dimension of the groove in the width direction by 0.01 mm to 0.9 mm,
wherein adjacent ones of said small projecting portions, or respective adjacent ones of said small projecting portions and said large projecting portions, in the longitudinal direction of said main body are disposed at intervals of 5 to 15 mm, and a width of each of said small projecting portions in the width direction of the groove is smaller than the dimension of the groove in the width direction by 0.01 mm to 0.6 mm such that when the gasket is received within the groove, and prior to the gasket being deformed upon the one member being fastened to the another member, no portion of said each of said small projecting portions is in contact with the opposite inner wall faces of the groove, and
wherein a filling rate of the groove by the gasket when the one member and the another member are fastened to each other is 80 to 100%.