Patent ID: 11873044
Assignee: HYUNDAI MOTOR COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A personal mobility device comprising:
a towing module configured to allow one of various types of towed modules to be selectively connected and towed; and
a connection device configured to connect the towing module and the towed modules;
wherein the connection device comprises:
a connection member extending rearward from the towing module;
a connection shaft having an upper side rotatably supported on the connection member and a lower side coupled to a shaft coupling hole formed on a connection frame of the towed module;
a locking device provided on the connection frame to lock the connection shaft; and
wherein the connection shaft comprises a first outer diameter part and a second outer diameter part having different outer diameters formed on an outer surface of the connection shaft to be selectively connected depending on a size of a shaft coupling hole of the connection frame.