Planetary-type bottom-bracket transmission for a bicycle or a pedelec

Abstract: a planetary-type bottom-bracket transmission for a bicycle or a pedelec (), includes a pedal crank shaft (wan), a transmission output shaft (wab), further shafts (w w w w w w w), and a first transmission shift group () and a second transmission shift group () that are coupled to each other in order to implement a plurality of gear ratios (g g g g g g g g g g g g). the first transmission shift group () includes a two-step stepped planetary gear set (strs) that is assigned a first shifting element (b), a second shifting element (b) and a fifth shifting element (f, f, f, f, f, f).

Inventor(s): Stefan Beck, Michael Wechs, Fabian Kutter, Thomas Martin, Thomas Riedisser

CPC Classification: B62M11/145 (RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general ; transmission elements per se ))

Search for rejections for patent application number 20250153806