Foldable rotary arm structure and device for bicycle
US12012169B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 25, 2023 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K15/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A foldable rotary arm structure and device for a bicycle. The foldable rotary arm structure includes a rotary wheel and a rotary arm. The rotary wheel is coaxial with a transverse tube or surrounds the transverse tube. The rotary arm is in steering connection with the rotary wheel or a supporting base, such that the rotary arm is attached to the transverse tube when folded, thereby reducing the space of the transverse tube occupied in a radial direction. A flywheel for use in a balancing device of a bicycle or a motor-assisted bicycle or an amusement device is provided. In the rotary arm, individual batteries or multistage batteries are arranged in a single layer in the radial direction and are stacked in multiple stages in the axial direction. When the rotary arm is unfolded and rotated, the angular momentum is increased or the torque is balanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.