| 摘要 |
PROBLEM TO BE SOLVED: To provide an annular gasket which regulates the flow-out of an elastic material, and is easy to be manufactured. SOLUTION: In the annular gasket 1, a plurality of divided constituents 10a, 10b for a metal board are made to abut and joined to each other, and an elastic seal layer 2 is adhesively integrated to the internal peripheral side 3 of the annular-formed metal board 10. The metal board is characterized in that the plurality of divided constituents for the metal board are made to abut on each other with a slight clearance therebetween, and temporarily assembled into an annular shape to form an annular body, the seal layer is formed by adhesively integrating the elastic material to the internal peripheral side of the annular body, the elastic material is poured into an abutting part of the divided constituents for the metal board, and a throttle protrusion 11 for regulating the flow-out of the elastic material to the external side is formed in at least one part of the abutting part which is formed by vulcanizing the divided constituents for the metal board and joining them, and in which the divided constituents for the metal board are joined to each other. COPYRIGHT: (C)2010,JPO&INPIT
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