Tank opening-closing device

Abstract

A tank opening-closing device comprises a tank opening forming member having a fuel passage, a flap valve mechanism for opening and closing a fueling inlet, and an operating mechanism. The operating mechanism comprises a push member that receives an operating force manually, and an operating member for transmitting to an opening-closing member the operating force received by the push member, so that when the push member is pushed by a fueling gun, or the like, the opening-closing member opens the fueling inlet via the operating member.

Description

[0001] This application claims the benefit of and priority from Japanese Application No. 2005-348916 filed Dec. 2, 2005, the content of which is incorporated herein by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a tank opening-closing device for supplying fuel to a fuel tank through a fuel passage, and in particular, relates to a mechanism for opening and closing a fuel passage. [0004] 2. Description of the Related Art [0005] A fueling inlet for an inlet pipe for supplying fuel to automobile is shut by fuel caps that are attached and removed through a rotating the caps. Not only does this type of fuel cap have poor operability because of the need to rotate the fuel cap multiple times when supplying fuel, but also there is a problem in that there is the need to provide a place for placing the fuel cap when removed, or means by which to prevent the fuel cap from becoming lost. The provision of a flap valve structure i...

AI Technical Summary

Benefits of technology

[0013] As a preferred form of embodiment in accordance with the present invention, the operating structure can be structured through the provision of an operating member main body that is fabricated integrally with the push member, and which is supported slidably relative to the tank opening forming member, and a link mechanism for connecting the operating member main body with the opening-closing member so that the opening-closing member is opened and closed by the movement of the operating member main body. This structure enables a simple and well-suited structure for the transmission mechanism for the operating force from the push member to the opening-closing member.

[0014] Moreover, as a preferred structure in accordance with the present invention, the push member may be structured with ribs that protrude towards a fueling lid side from a top wall of the tank opening forming member. This type of rib is a simple structure that can be pushed by the fueling gun, and through the provision of this ty

Problems solved by technology

Not only does this type of fuel cap have poor operability because of the need to rotate the fuel cap multiple times when supplying fuel, but also there is a problem in that there is the need to provide a place for placing the fuel cap when removed, or means by which to prevent the fuel cap from becoming lost.

However, in the technology in the first patent reference, the force of the spring that is ap

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