| 摘要 |
PURPOSE:To enable even an electric motor can where a free wheel is used for a running wheel to smoothly run over a difference in a level by operating an electric motor when a car body approaches the difference in a level, floating wheels in a way to bring a guide wheel into contact with the difference in a level, and causing wheels to touch the ground after the wheels are run over the difference in a level. CONSTITUTION:When a car body 1 is run in a direction B and a lever 12a is brought into contact with a difference 13a in a level, the lever 12a is rotated in a pressed state, and an electric switch, not shown in the figure is closed. Thereby, an electric motor 22 is run forward and meanwhile, rotary bodies 20a and 21a are rotated through a one-way clutch 23a to press down respective levers 10a and 8a. As a result, a guide wheel 7a is brought into contact with the difference 13a in a level and wheels 2a are floated. After the wheels 2a run over the difference 13a in a level, the guide wheel 7a is raised and the wheels 2a are caused to touch the ground. Thereafter, when the respective rotary bodies 20a and 21a make one full turn, energization to the electric motor 22 is disconnected and all operations are restored. This constitution enables even an electric motor car using a free wheel to run over the difference in a level. |
