| 摘要 |
A carrier equipped with wheel is provided to move goods easily by equipping wheel on the goods supporting part. A carriage comprises a supporting unit, wheel, and a wheel location control unit. The wheel is connected to the supporting unit. The wheel location control unit comprises a first pipe(205) connected to the supporting unit, a second pipe(210) connected between the first pipe, and the wheel, and elastic unit which supports the wheel. The elastic unit is installed along the inside of the first and the second pipe. One end of the elastic unit is connected to the supporting unit, and the other end of the elastic unit is connected to the wheel. The elastic unit might have spring structure. |
