US 2006/0066061 A1 · Seal

Abstract

A seal rubber 3 is placed in a first peripheral groove 2 formed on one main surface 1A of an approximately flat-plate-shaped metal body 1, the second peripheral groove 4 and multiple communicating holes 5 to communicate between the second peripheral groove 4 and the first peripheral groove 2 are formed on the other main surface 1B of the metal body 1, and a retaining rubber 6 disposed in the second peripheral groove 4, a seal rubber 3, and a bridge rubber 7 disposed in the communicating hole 5 are integrated. The first peripheral groove 2 is made to be a dovetail groove, the second peripheral groove 4 is made to have an inner surface inclined to reduce the groove width from a groove opening side to a groove bottom surface side, and the groove width D4-2 of the groove bottom surface and the inner diameter D3 of the communicating hole 5 are made to be substantially the same. As a result, release or breakage of the seal rubber does not occur during opening or closing of the two members, stable seal performance is achieved, and even when a large seal is to be made, the seal rubber can be attached easily.

Claims9

Dependent claims

A seal having a seal rubber, which seal is to be set on one of openable-closable two members to hermetically seal a gap between the two members with the seal rubber pressed against the other member when the two members are closed, the seal comprising;

an approximately flat-plate-shaped metal body comprising a first peripheral groove in one main surface thereof and a seal rubber therein, a second peripheral groove in the other main surface thereof, and multiple communicating holes to communicate the second peripheral groove and the first peripheral groove,
the second peripheral groove comprising a retaining rubber disposed therein, where the retaining rubber and the seal rubber are integrated with bridge rubbers disposed in the multiple communicating holes,
wherein the first peripheral groove is a dovetail groove,
the second peripheral groove has an inner surface inclined to reduce the groove width from a groove opening side to a groove bottom surface side, the groove width of the groove bottom surface and the inner diameter of the communicating hole are substantially the same, and
the seal rubber is mounted in the first peripheral groove to fill almost the whole area of the groove.

2 more elements

Dependencies are inferred from the claim text.

Seal

Life of this patent

Seal

Life of this patent

Abstract

Claims9