Sealing apparatus
AssigneeNok Corporation
InventorsMasamichi KISHIRO, Nobuhiro NISHIMURA
Life of this patent
Estimating the term…
Abstract
Provided is a sealing apparatus that can prevent a garter spring from falling off an elastic member. The sealing apparatus comprises a reinforcing ring formed annularly around an axis, an elastic body part that is attached to the reinforcing ring and that is formed annularly around the axis, and a garter spring attached to the elastic body part. The reinforcing ring includes a retainer that is an annular portion projecting to an outer periphery side from an end portion on one side of the reinforcing ring in a direction of the axis. The elastic body part has at least one projection that is formed on the one side of a zone to which the garter spring is attached in the direction of the axis and that projects from the elastic body part to the outer periphery side.
Claims5
A sealing apparatus comprising:
- a reinforcing ring that is made of a metal material and that is formed annularly around an axis;
- an elastic body part that is made of an elastic material attached to the reinforcing ring and that is formed annularly around the axis, the elastic body part including a seal lip that projects to an inner periphery side and that is formed annularly around the axis;
- and
- a garter spring attached to the elastic body part, the garter spring being on an outer periphery side of the seal lip and facing away from the seal lip,
- wherein the reinforcing ring includes a retainer that is an annular portion projecting to the outer periphery side from an end portion on one side of the reinforcing ring in a direction of the axis, and
- wherein the elastic body part has at least one projection that is formed on the one side of a zone to which the garter spring is attached in the direction of the axis and that projects from the elastic body part to the outer periphery side.
Dependencies are inferred from the claim text.