Patent ID: 8141736

Claim:
A filler cap tether, comprising: a circular body adapted to be rotatably mounted on an outer circumference of a filler cap removably mounted on an oil feeding port, an elongated flexible tether having attachment portions on two ends thereof, one attachment portion being removably connected to the circular body and the other attachment portion being adapted to be connected to a vehicle body, and a connecting device configured to selectively disconnect the circular body from the tether when a load with a predetermined value or above is applied to the filler cap, wherein the connecting device includes a male element provided on the tether as an engaging portion, and an engaged portion provided on the circular body to permit mutual engagement and disengagement between the circular body and the tether, said engaged portion including a tube portion having a slit extending along an inserting direction from an insertion opening where the male element is inserted, and a first taper portion formed on an inner surface of the tube portion, said first taper portion extending along the inserting direction and becoming lower toward the insertion opening.