초록 ▼

A connector for a fuel tank includes a flange portion, an outer connecting portion to be connected to a pipe member and an inner connecting portion to be inserted into a fuel tank through a connecting opening of the fuel tank. The inner connecting portion has an engaging portion to be engaged with a

A connector for a fuel tank includes a flange portion, an outer connecting portion to be connected to a pipe member and an inner connecting portion to be inserted into a fuel tank through a connecting opening of the fuel tank. The inner connecting portion has an engaging portion to be engaged with an engaged portion provided to a member when the member is to be disposed in the fuel tank. The flange portion includes an outer flange member made of a synthetic resin same as that of an outer surface of the fuel tank, and an inner flange member made of a synthetic resin having a gas barrier property and a rigidity higher than that of the synthetic resin constituting the outer flange member. The inner connecting portion and the inner flange member are made of the same material.

대표청구항 ▼

1. A connector for connecting a fuel tank with a connecting opening, and a pipe member, comprising:a flange portion for covering the connecting opening of the fuel tank from an outside thereof, said flange portion including an inner flange member having an outer peripheral portion and formed of a fi

1. A connector for connecting a fuel tank with a connecting opening, and a pipe member, comprising:a flange portion for covering the connecting opening of the fuel tank from an outside thereof, said flange portion including an inner flange member having an outer peripheral portion and formed of a first synthetic resin with a gas barrier property, and an outer flange member covering at least the outer peripheral portion and formed of a second synthetic resin containing at least a synthetic resin for an outer surface of the fuel tank so that the second synthetic resin can be fixed to the fuel tank by fusing, said first synthetic resin having a rigidity greater than that of the second synthetic resin, an outer connecting portion extending outwardly from the flange portion to be connected to the pipe member, said outer connecting portion being integrally formed with the outer flange member, an inner connecting portion to be inserted into the fuel tank through the connecting opening of the fuel tank, said inner connecting portion being formed of the first synthetic resin and integrally formed with the inner flange member, a device attached to the inner connecting portion to be disposed inside the fuel tank, and having a casing, a first engaging portion formed on the casing and an upper flange extending laterally outwardly from the casing so that when the device is attached to the inner connecting portion and assembled with the fuel tank, the upper flange is located under the inner flange member outside the fuel tank to cover a lower surface of the inner flange member, and a second engaging portion disposed on the inner connecting portion to engage the first engaging portion. 2. A connector according to claim 1, wherein said outer flange member includes an outer peripheral portion covering the outer peripheral portion of the inner flange member, said outer peripheral portions of the inner and outer flange members being adapted to contact the outer surface of the fuel tank and being heat-fused thereto.3. A connector according to claim 1, wherein said first synthetic resin is a mixture of polyethylene and polyamide, and the second synthetic resin is polyethylene.4. A connector according to claim 1, wherein said casing houses a member to be disposed in the fuel tank.5. A connector according to claim 4, wherein said member is a float for constituting a float valve.6. A connector according to claim 1, wherein said casing includes a side plate casing member, an outer plate casing member located outside the side plate casing member, and a depressed portion formed between the side plate casing member and the outer plate casing member and extending from an upper end thereof for receiving the inner connecting portion therein.7. A connector according to claim 6, wherein said upper flange extends laterally outwardly from the outer plate casing member.8. A connector according to claim 1, wherein said outer connecting portion includes an outer vertical portion extending upwardly from the outer flange member, an inner vertical portion situated inside the outer vertical portion and extending from the inner flange member, an inner lateral portion extending laterally from the inner vertical portion, and an outer lateral portion extending laterally from the outer vertical portion over the inner lateral portion.9. A connector according to claim 6, wherein said side plate casing member and said outer plate casing member are joined at a middle of the casing, and a single side wall extends downwardly to form the casing.10. A connector according to claim 9, wherein said second engaging portion is formed in the outer plate casing member.