| 摘要 |
A toy apparatus including a guide having one or more tracks; a helical spring coil having first and second ends and a plurality of turns (T) situated about and defining a center axis between first and second ends of the helical coil spring; and/or a coupler which couples the and second ends of the helical spring coil to each other so as to form center opening configured to receive the one or more tracks, wherein an outer surface of one or more of the plurality of turns is in contact with the one or more tracks so that the helical coil spring rotates in a substantially poloidal direction about the central axis when traveling axially along the guide. |
