Gasket and manufacturing method thereof
AssigneeIshikawa Gasket Co., Ltd.
InventorYuichi Kinoshita
Life of this patent
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Abstract
An object of the present invention is to provide a gasket capable of maintaining a surface pressure for a long period of time while securing sealing performance and improving durability and a manufacturing method thereof. A gasket includes a first annular portion which is formed by a metal wire woven fabric and has a seal target hole and a main body portion which is formed by a metal wire woven fabric and is in contact with an outer peripheral edge of the first annular portion, in which a metal wire of the metal wire woven fabric and a metal wire of the metal wire woven fabric are entangled so that the first annular portion and the main body portion are joined to each other and a gap between the metal wires forming the first annular portion is sealed by a resin.
Claims6
A gasket comprising a metal wire woven fabric, and including
- at least an annular portion having a through-hole;
- and
- a main body portion contacting an outer peripheral edge of the at least one annular portion,
- wherein the at least one annular portion comprises a compressed first tubular metal wire woven fabric, which is woven in an axis direction of the first tubular metal wire woven fabric and compressed in the axis direction,
- the main body portion comprises a compressed second tubular metal wire woven fabric, which is woven annularly in an axis direction of the second tubular metal wire woven fabric and compressed in a radial direction of the second tubular metal wire woven fabric, and another through-hole where stitches of the compressed second tubular metal wire woven fabric are enlarged, in which the annular portion is disposed, and
- the metal wires of the metal wire woven fabric forming the at least one annular portion and the metal wire woven fabric forming the main body portion are entangled so that the at least annular portion and the main body portion are joined to each other, and a gap between the metal wires forming the at least one annular portion is sealed by a resin.
A gasket manufacturing method comprising:
- weaving a tubular metal wire woven fabric in a tubular axis direction by a metal wire and a resin fiber or a resin thread and crushing the tubular metal wire woven fabric in the tubular axis direction to form an annular portion;
- weaving another tubular metal wire woven fabric in a tubular axis direction of the another tubular metal wire woven fabric by a metal wire and crushing the another tubular metal wire woven fabric in a radial direction to form a main body portion;
- forming an arrangement hole by enlarging stitches in metal wire woven fabric at a predetermined position of the obtained main body portion and arranging the annular portion in the arrangement hole;
- and
- thermally compressing the main body portion and the annular portion to be integrated.
Dependencies are inferred from the claim text.