Bicycle gearing having a noncircular chainring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 12, 2021
Grant Date -
Feb 28, 2019
app pub date -
Feb 10, 2017
filing date -
Feb 12, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a bicycle gearing, comprising: a cylindrical-gear gearing (10), which has a stationary sun gear (11) having a central bearing axis (y1) extending centrally therein and a planet gear (12), which travels on the sun gear (11) and rotates about a planet-gear bearing axis (y2); a four-bar linkage (20), which interacts with the cylindrical-gear gearing (10) and which comprises a crank (21), which is fixedly connected to the planet gear (12) and is rotatably connected to a pedal crank (22); and a toothed wheel (30), by means of which a traction means (31) can be driven. The problem addressed by the invention is that of improving a bicycle gearing of the type in question in such a way that a rounder pedaling feel is perceived by the bicycle rider. The problem is solved according to the invention in that the toothed wheel (30) has an oval shape.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- B62M Class
- 535 Applications Filed
- 418 Patents Issued To-Date
- 78.14 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B62M Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 12, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 12, 2032 |
