To provide an inexpensive system where a procedure at the time of lending is simple and a security is insured too in a rental system for lending a vehicle driven using the electric power of a battery to a specified person.
A plurality of bicycles is the same in the shape of a key groove of a key cylinder 12a, and a key 2 having an irregular shape coinciding with the shape of the key groove is previously lent to the specified person, and only a person having the key 2 can borrow the bicycle 1. In addtion, a battery pack 13 is lent out through a lending device 3, and at the time of lending, the descrimination data of the key 2 are written in the memory 13b of the battery pack 13, and when the key 2 inserted in the key cylinder 12a of the bicycle 1 has a fixed irregular shape 2a, and the descrimination data of the inserted key 2 coincides with the descrimination data recorded in the memory 13b of the battery pack 13 attached to the bicycle 1, the bicycle can be turned into a state where it can run.
KOKUBU MAMORU
SHIMIZU TOMOHIDE
HAMANO HIROSHI
TSUJI SADATOSHI
