公开(公告)号：US12117081B2

公开(公告)日：2024-10-15

申请号：US17801515

申请日：2021-04-13

Applicant: NOK CORPORATION

Inventor： Masasuke Uchiyama

IPC: F16J15/3268 ,  B25B27/00 ,  F16J15/12 ,  F16J15/3252

CPC classification number: F16J15/3268 ,  B25B27/0028 ,  F16J15/121 ,  F16J15/3252

Abstract: Provided is a gasket mounting structure capable of preventing a gasket from being mounted in a wrong direction. The gasket mounting structure is configured such that, when a jig 200 is inserted into a gasket 100 from a large-diameter inner peripheral surface portion 124 side, a small-diameter outer peripheral surface portion 210 is press-fitted into an inner peripheral surface of a seal projection 122 to result in a state in which the gasket 100 is held by the jig 200 and, when the jig 200 is inserted into the gasket 100 from a small-diameter inner peripheral surface portion 123 side, the small-diameter outer peripheral surface portion 210 does not reach a position at which the small-diameter outer peripheral surface portion 210 can come into contact with the seal projection 122.

公开(公告)号：US11933404B2

公开(公告)日：2024-03-19

申请号：US17614791

申请日：2020-06-05

Applicant: NOK CORPORATION

Inventor： Masasuke Uchiyama

IPC: F16J15/3204

CPC classification number: F16J15/3204

Abstract: A sealing device includes a reinforcing ring formed annularly around an axis and an elastic body part that is formed from an elastic body attached to the reinforcing ring and that is formed annularly around the axis. The reinforcing ring includes a tubular portion having a cylindrical shape around the axis and a flange projecting annularly from an outer end portion of the tubular portion to an inner periphery side. The elastic body part includes a lip portion that is an annular portion covering the flange from an outer side, projecting from the flange toward the outer side in a direction of the axis, and projecting toward the inner periphery side in a radial direction. The lip portion includes a seal lip portion that is an annular portion projecting toward the outer side in the direction of the axis and a secondary lip portion that is an annular portion projecting toward an inner side in the direction of the axis.