Nitto Kohki Co., Ltd.

Hideyuki Sanada

Takuya Nishio

Jin Yamashita

A valve holding member made of a sheet metal includes a hub part () having a guide hole () through which a valve stem () and a plurality of arm parts () formed at the peripheral edge of the hub part. The arm parts are extend from the peripheral edge in an axial direction and in a radially outward direction with respect to the axis of the valve stem. The valve holding member also includes any one of a first reinforcing protrusion () formed in at least one of the arm parts which extends along a longitudinal direction of the at least one arm part and protrudes radially outward or inward with respect to the axis of the valve stem, a tubular reinforcing part () formed around the guide hole and extending from the hub part in the axial direction, and a second reinforcing protrusion () formed in the hub part and protruding in the axial direction.

Valve holding member

There is provided a valve holding member for holding a valve of a pipe coupling. The valve holding member includes a hub parthaving a guide holefor a valve stem, two arm partsdiametrically opposing each other on the peripheral edge of the hub part, and spring holding partsformed at the peripheral edge.

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Tokyo, Japan

Hideyuki Sanada