Provided is a traveling device being inserted into an accommodator of a carriage including a traveling wheel, being coupled to the carriage, and traveling while pulling the carriage. The traveling device includes a driving wheel provided at a bottom of the traveling device, and a first guide roller contactable with the carriage when the traveling device is inserted into the accommodator of the carriage, at least one of a corner and a side surface of the traveling device.
TRAVELING DEVICE AND CARRIAGE
2020-07-16
Patent
Electronic Resource
English