US 12,434,788 B2
Bottom-bracket gear
Thomas Riedisser, Sigmarszell (DE); Ulrich Doerr, Constance (DE); Peter Ziemer, Bad Woerishofen (DE); Leschek Debernitz, Eriskirch (DE); Christoph Margraf, Markdorf (DE); Hagen Doepfert, Lindau (DE); Uwe Schraff, Markdorf (DE); Uwe Griesmeier, Markdorf (DE); Michel Wiemer, Weingarten (DE); and Markus Strobel, Ravensburg (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Appl. No. 18/835,502
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
PCT Filed Feb. 1, 2023, PCT No. PCT/EP2023/052373
§ 371(c)(1), (2) Date Aug. 2, 2024,
PCT Pub. No. WO2023/148184, PCT Pub. Date Aug. 10, 2023.
Claims priority of application No. 102022201131.7 (DE), filed on Feb. 3, 2022.
Prior Publication US 2025/0145251 A1, May 8, 2025
Int. Cl. F16H 57/03 (2012.01); B62M 11/14 (2006.01); B62M 25/00 (2006.01)
CPC B62M 11/145 (2013.01) [B62M 25/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An arrangement for actuating a shift element for a bottom bracket gearbox (1), comprising:
a shift ring (4) rotatably mounted in a housing (3) and assigned to a gearbox component;
a shift pawl (5) for locking or releasing the shift ring (4), the shift pawl (5) assigned to the shift ring (4) for shifting a gear stage,
wherein a support region mechanically reinforces the housing (3), the support region provided at least along a contact region (14) between an inner wall (8) of the housing (3) and an outer circumference of the shift ring (4), the contact region (14) defined by reaction forces (16) acting when the shift ring (4) is locked.