Toy car wheel with adjustable center of gravity
US8057277B2 · kind B2 · utility
4Cited by
8References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 26, 2009 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jan 19, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/31
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention provides a toy car wheel with an adjustable center of gravity. The middle of the toy car wheel defines a through hole. At least one spoke is distributed between the rim of the toy car wheel and the through hole. At least one channel is defined in each spoke. At least one spherical body is disposed in each channel. When a toy car decelerates, a momentum of the toy car decreases, the at least one spherical body descends in a corresponding channel, and the center of gravity of the toy car wheel descends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.