Three-dimensional folding frame, electric vehicle, bicycle, and motorcycle
US11708123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2019 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Nov 29, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K2206/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A three-dimensional folding frame is disclosed including a first pivot portion for providing a front folding wheel frame with movable folding; a second pivot portion for providing a rear folding wheel frame with movable folding; a third pivot portion for providing a handlebar vertical rod with rotatable folding; and a fourth pivot portion for providing a crossbar with rotatable folding. The crossbar includes a first folding arm and a second folding arm; the first folding arm is movably connected to the front folding wheel frame by means of the first pivot portion; the front folding wheel frame rotates about the first pivot portion and can move relative to the first folding arm; the second folding arm is movably connected to the rear folding wheel frame by means of the second pivot portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.