Gasket and sealing structure
AssigneeNok Corporation
InventorTakuya AMANO
Life of this patent
Estimating the term…
Abstract
A gasket and a sealing structure that are capable of stabilizing posture of the gasket installed in a narrow space. A gasket main body has: an annular lip portion pressed by a facing surface of a second member facing a first member so that the lip portion is in close contact with the facing surface while being bent inward; a first annular protrusion in close contact with an end surface of the mount portion facing the second member; and a second annular protrusion provided inward with respect to the first annular protrusion and in close contact with the end surface.
Claims6
A gasket configured to seal a gap between a first member and a second member fixed to the first member, the first member having an opening and a mount portion provided along an edge of the opening, the mount portion having an annular and cutout shape, the gasket comprising:
- a reinforcing ring having:
- a body portion extending from the first member side toward the second member side;
- and
- a bent portion bent inward from an end of the body portion on the first member side;
- and
- a gasket main body made of an elastic body provided integrally with the reinforcing ring, wherein
- the gasket main body has:
- an annular lip portion configured to be pressed by a facing surface of the second member facing the first member so that the lip portion is in close contact with the facing surface while being bent inward;
- a first annular protrusion configured to be in close contact with an end surface of the mount portion facing the second member;
- and
- a second annular protrusion provided inward with respect to the first annular protrusion and configured to be in close contact with the end surface.
A sealing structure comprising:
- a first member having an opening and a mount portion provided along an edge of the opening, the mount portion having an annular and cutout shape;
- a second member fixed to the first member;
- and
- a gasket sealing a gap between the first member and the second member, wherein
- the gasket has:
- a reinforcing ring having:
- a body portion extending from the first member side toward the second member side;
- and
- a bent portion bent inward from an end of the body portion on the first member side;
- and
- a gasket main body made of an elastic body provided integrally with the reinforcing ring, and
- the gasket main body has:
- an annular lip portion pressed by a facing surface of the second member facing the first member so that the lip portion is in close contact with the facing surface while being bent inward;
- a first annular protrusion being in close contact with an end surface of the mount portion facing the second member;
- and
- a second annular protrusion provided inward with respect to the first annular protrusion and being in close contact with the end surface.
Dependencies are inferred from the claim text.