Cap device for fuel tank
AssigneeNifco Inc.
InventorYasushi Ueki
Life of this patent
Estimating the term…
Abstract
In a cap device for a fuel tank, a main portion includes an operation portion, a sealing member and an engaging portion. When the main portion is inserted into an opening portion of the fuel tank and rotated by a predetermined angle, the sealing member is pressed against the opening portion and the engaging portion engages the opening portion, thereby fixing the cap device to the opening portion. The main portion also includes a shaft portion, a movable member having the engaging portion, and a cam mechanism disposed between the shaft portion and the movable member for allowing the shaft port ion to move separately from the movable member, so that the engaging portion engages the opening portion according to the vertical movement of the shaft portion through the cam mechanism.
Claims8
A cap device for a fuel tank comprising:
- an operation portion,
- a shaft portion extending from the operation portion to be inserted into an opening of the fuel tank,
- a sealing member disposed on the shaft portion for sealing the opening,
- a movable member disposed over the shaft portion and having an engaging portion for engaging the opening of the fuel tank to fix the cap device to the fuel tank, and
- a cam mechanism disposed between the shaft portion and the movable member for allowing the shaft portion to move vertically relative to the movable member by an actuation of the operation portion so that the engaging portion of the moving member engages with and disengages from the opening of the fuel tank according to a vertical movement of the shaft portion relative to the movable member through the cam mechanism.
A cap device for a fuel tank comprising:
- a main body having a flange at an upper side thereof,
- a sealing member disposed below the flange of the main body for sealing an opening of the fuel tank,
- an engaging portion disposed under the sealing member for engaging the opening of the fuel tank to fix the cap device to the fuel tank, and
- an operation portion disposed on the flange of the main body, and having a cover rotatable relative to the flange, and a connecting mechanism disposed between the flange and the cover for selectively connecting the cover to the main body, said connecting mechanism switching the cover between a non-connecting mode in which the cover rotates separately from the main body and a connecting mode in which the cover rotates with the main body depending on whether the cover is pressed downward with a specific force while the cover rotates in an opening direction.
Dependencies are inferred from the claim text.