Honda Motor Co., Ltd.

Nifco Inc.

Syouichi Hokazono

Takeaki Nakajima

Shinya Murabayashi

Takahide Ichimaru

Toshiaki Nakai

Yuki Takikawa

A device for preventing a fueling error reliably prevents a fueling error by accurately preventing an insertion of a small-diameter nozzle without blocking an insertion of a large-diameter nozzle whose entrance should be permitted. Even if an end of a nozzle is strongly pressed to left-and-right shutter members (), the shutter members () never rotate and move in an opening direction unless the shutter members () slide and move to an outside of a radial direction. Thus, the structure prevents the shutter members () from erroneously moving to a position in which the nozzle is allowed to enter from a blocking position.

Device for preventing fueling error

A fuel cap includes a cap member, a screw member having a cylindrical body, a thread and a rib, and a gasket. The rib has at least one recess in the vicinity of the end part of the thread on the screw member in such manner that the space is provided that allows the screw member to be screwed tightly without causing interference between the rib and the filler neck thread.

Fuel cap with improved sealability

Growing community of inventors

Wako, Japan

Syouichi Hokazono