초록 ▼

A fueling device 10 of a fuel tank comprises a cover 20 which is provided with an operation lever 26 operated to open and close a filling opening SCc, and which opens and closes the filling opening SCc according to the opening/closing operation of the operation lever 26, a fuel cap 30 having a struc

A fueling device 10 of a fuel tank comprises a cover 20 which is provided with an operation lever 26 operated to open and close a filling opening SCc, and which opens and closes the filling opening SCc according to the opening/closing operation of the operation lever 26, a fuel cap 30 having a structure such that it is fitted in a buried state in an inlet pipe IP and taken out from the inlet pipe, a gasket GS interposed between the fuel cap 30 and the inner wall of inlet pipe IP, and a spring 70 interposed between the fuel cap 30 and gasket GS and pressing the gasket GS against the sealing surface by a force acting in the direction of closing the cover 20 via the fuel cap 30, while increasing the pressing force. The fueling device 10 has high sealing property against large external forces applied to the upper part of fuel filler pipe.

대표청구항 ▼

1. A fueling device for fueling a fuel tank through an inlet disposed in a fuel passage of a fuel inlet pipe, the fueling device comprising:a cover having a handle being operable to open and close the inlet, the cover configured to open and close the inlet via operation of the handle, wherein the co

1. A fueling device for fueling a fuel tank through an inlet disposed in a fuel passage of a fuel inlet pipe, the fueling device comprising:a cover having a handle being operable to open and close the inlet, the cover configured to open and close the inlet via operation of the handle, wherein the cover includes a plate that is pivotally connected to the inlet pipe; a sealing component located to cooperate with a seat surface inside the fuel inlet pipe; a cap configured to be detachably attached inside the inlet pipe, wherein the cap is adapted to be inserted into and taken out of the fuel inlet pipe as a whole, and an upper portion of the cap includes an arcuate surface, wherein the arcuate surface is configured to be pressed by the cover, and wherein the cap is further configured to press the sealing component against the seat surface when the cap is pressed by a closing force applied by the cover in a closing direction; a support inner cylinder disposed in the fuel inlet pipe, wherein the support inner cylinder is configured to support the cap; and a pressing mechanism, wherein the pressing mechanism includes a spring that is configured to transmit the closing force of the cover to the sealing component via the cap. 2. The fueling device as claimed in claim 1, wherein the handle includes an operation lever, wherein the operation lever is configured to be set in a closing position, to engage with the fuel inlet pipe in such a state that the operation lever is pressed against force of the spring, and an opening position, to release engagement with the fuel inlet pipe.3. The fueling device according to claim 1, wherein the cap includes a cap upper body for receiving the closing force on the cover and a cap lower body for pressing the sealing component, wherein the spring is configured to transmit the closing force applied to the cap upper body to the cap lower body, and wherein the cap lower body includes a cap linking body, and the cap linking body is configured to support the spring against the cap upper body and to link the cap upper body to the cap lower body within a predetermined distance, and the cap includes a valve chamber and a pressure regulating valve located in the valve chamber, wherein the pressure regulating valve regulates the pressure in the fuel tank in a predetermined range.4. The fueling device according to claim 1, wherein the support inner cylinder holds the seal component.5. A fueling device for fueling a fuel tank through an inlet disposed in a fuel passage of a fuel inlet pipe, the fueling device comprising:a cover having a handle that is operable to open and close the inlet, wherein the cover is configured to open and close the inlet via operation of the handle; a sealing component located between the cap and a seat surface inside the fuel inlet pipe; a cap configured to be detachably attached inside the inlet pipe, wherein the cap includes a cap upper body, which receives a closing force from the cover, and a cap lower body, which presses the sealing component, wherein, the cap is adapted to be inserted into and taken out of the fuel inlet pipe as a whole, and wherein the cap is configured to press the sealing component against the seat surface when the cap is pressed by the closing force, which is applied by the cover in a closing direction; a spring located between the cap upper body and the cap lower body, wherein the spring presses the scaling component against the sealing surface when compressed in response to the closing force of the cover; and an engagement ring including engagement elements for engaging with the fuel inlet pipe, the engagement elements being configured to take a sealing position and a non-sealing position, the sealing position being a position in which the cap lower body applies force to the sealing component to create a seal, the non-scaling position being a position in which the cap lower body releases the seal, wherein the engagement ring includes a connection and connecting the engagement elements, the engagement ring being configured to deform from an elliptical shape to a ring shape when the engagement clement is attached to and detached from the fuel inlet pipe in response to a movement of the cap upper body. 6. The fueling device as claimed in claim 5, wherein the cover is configured to elastically deform and is held in intimate contact with a circumference of the inlet when the cover is attached to the inlet pipe.7. The fueling device as claimed in claim 5, wherein the cover is configured to be held on a circumference of the inlet when the cap upper body is pressed by the cover and the engagement ring is set in the scaling position.8. The fueling device in accordance with claim 5, wherein the cover is configured to unitarily connect with the cap.9. The fueling device according to claim 5, Wherein the support inner cylinder holds the seal component.10. The fueling device according to claim 5, wherein the sealing position is a position in which the cap lower body presses the sealing component against the sealing surface, and the non-sealing position is a position an which the cap lower body releases the sealing component from the sealing surface.