Sealing device
AssigneeNok Corporation
InventorMasahiro SEKI
Life of this patent
Estimating the term…
Abstract
A sealing device includes an elastic body portion formed from an elastic body. The elastic body portion includes a fitting portion that is an annular part, a lip that is an annular part protruding from the fitting portion to an inner periphery side, and an annular first protruding portion. The lip protrudes from an inner end portion of the fitting portion while being inclined to an inner side. A length of the lip in the protruding direction is set based on a minimum crush allowance c when a tube is eccentric at maximum with respect to a through hole. The first protruding portion protrudes from the inner end portion of the fitting portion toward the inner side.
Claims10
A sealing device that tightly closes an annular gap between a hole formed in a first member and a second member inserted in the hole, the sealing device comprising:
- an elastic body portion that is a part annular around an axis line and formed from an elastic body, wherein
- the elastic body portion includes a fitting portion that is a part annular around the axis line, a lip that protrudes from the fitting portion to an inner periphery side and is annular around the axis line, and a first protruding portion annular around the axis line,
- the lip protrudes from an end portion of the fitting portion on one side in the axis line direction, while being inclined to the one side,
- a length of the lip in a protruding direction is set based on a minimum crush allowance when the second member is eccentric at maximum with respect to the hole, and
- the first protruding portion protrudes from the end portion of the fitting portion toward the one side.
Dependencies are inferred from the claim text.