Patent ID: 9102230
Filing Date: 2015-08-11
Classification: B60K,F16K

Abstract:
1. An open-close device for fuel tank configured to open and close a fuel passage for supplying a fuel discharged from a refueling nozzle to a fuel tank, the open-close device comprising: a tubular body having a tube main body configured to form the fuel passage; a valve support member having: a valve support main body in a cylindrical shape to be inserted into the tube main body; and a filler port configured to define part of the fuel passage; and a flap valve mechanism having: an open-close member pressed by an edge of the refueling nozzle to open the filler port; a shaft support mechanism provided on the open-close member and the valve support member to support the open-close member in a rotatable manner; a spring arranged to press the open-close member in a closing direction; and a gasket configured to seal between an opening periphery of the filler port and the open-close member, wherein the shaft support mechanism comprises: a shaft member formed on one end of the open-close member; a bearing member having a shaft support hole, in which the shaft member is supported in a rotatable manner relative to the valve support member; and a rotation restricting mechanism configured to restrict rotation of the shaft member supported in the shaft support hole, wherein the bearing member is configured to support the shaft member to be movable in the shaft support hole between a first position where the open-close member warps the gasket and a second position where the open-close member does not warp the gasket, and the rotation restricting mechanism comprises: a restricting element provided on the opening periphery of the filler port; and a restricted element provided on the shaft member to be engaged with the restricting element, wherein at the first position, the restricting element is engaged with the restricted element to restrict rotation of the shaft member, so that the open-close member is moved in a direction of warping the gasket, while maintaining an attitude substantially parallel to a plane where the gasket is placed, and at the second position, the restricting element is disengaged from the restricted element, so that the open-close member is rotatable about the shaft member.