| abstract |
[Object] An object of the present invention is to provide a vehicle key capable of preventing drunk driving. [Structure] A vehicle key includes a key portion 100 in which a distal end portion 110 is inserted into a key hole of a vehicle such as a train, a two-wheeled vehicle, and an automobile, a holder portion 200 provided at a base end portion 120 of the key portion 100, a holder A projecting member 300 projecting from the section 200 along the key unit 100, a spring 400 for biasing the projecting member 300 in the projecting direction, an exhalation component detection means 500 for detecting alcohol contained in the exhalation of the user, and an exhalation component A lock mechanism 600 that locks and maintains the protruding member 300 in a protruding state according to the detection result of the detecting means 500 is provided. |