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(12) United States Patent (10) Patent No.: US 8,757,341 B2

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(12) United States Patent (10) Patent No.: US 8,757,341 B2 US008757341B2 (12) United States Patent (10) Patent No.: US 8,757,341 B2 Klieber 45) Date of Patent: Jun. 24,9 2014 (54) HUB WITH STAR RATCHET 4,261,452 A 4, 1981 Barrows 4,593,799 A 6, 1986 Ozaki 5,515,957 A 5/1996 McConaghy (76) Inventor: Jochen Klieber, Tacherting (DE) 5,676.227 A * 10/1997 Hugi ............................... 192,64 (*) Notice: Subject to any disclaimer, the term of this 3:63 A 8E6 Ipagnolo patent is extended or adjusted under 35 6,065,580 A 5, 2000 Kirk U.S.C. 154(b) by 296 days. 6,123,179 A 9/2000 Chen 6,309.109 B1 * 10/2001 Chuang ......................... 384.504 6,478,128 B2 11/2002 Taylor (21) Appl. No.: 13/196,740 6,557.946 B1 5/2003 Gerrit et al. (22) Filed: Aug. 2, 2011 6.588,564- ww. B1 T/2003 JagerJ ettal. a (Continued) (65) Prior Publication Data FOREIGN PATENT DOCUMENTS US 2012/OO32498A1 Feb. 9, 2012 CH 558 485 1, 1975 Related U.S. Application Data DE 132906 8, 1901 (60) Provisional application No. 61/370,375, filed on Aug. (Continued) 3, 2010. Primary Examiner — Rodney Bonck (30) Foreign Application Priority Data Attorney, Agent, or Firm — Christie, Parker & Hale, Aug. 3, 2010 (DE) ......................... 10 2010 O33 268 Aug. 3, 2010 (DE) ......................... 10 2010os3 272 (57) ABSTRACT The present invention relates to a rear wheel hub for a bicycle, (51) Int. Cl a rear Wheelheel for a bicyclbicycle, andda a bicycle. In ordorder to providproV1de a B60B 27/04 (2006.01) rear wheel hub which, with a further reduction in weight, still FI6D4L/36 (2006.01) allows reliable transmission of force, the hub has a hub body (52) U.S. Cl. (12), an axle body (14), a first bearing device (16) between the USPC ........ 192/64; 192/110 B: 301/110.5; 384/545 axle body and the hub body, a freewheel body (18) for accom (58) Field of Classification Search modating at least one sprocket, a second bearing device (20) USPC ..................................... 192/64; 384/545, 504 between the axle body and the freewheel body, and a free See application file for complete search history. wheel arrangement (22) between the freewheel body and the hub body which in a first rotational direction (26) about the (56) References Cited rotational axis establishes a coupling between the freewheel body and the hub body, and in a second rotational direction U.S. PATENT DOCUMENTS (28) which is opposite that of the first rotational direction, the 295,161 A 3/1884 Garrood ........................ 384,545 freewheel body is freely rotatable with respect to the hub 651,870 A * 6/1900 Little ............................ 384/545 body. 3,187,870 A 6, 1965 Sabatini 3,865,220 A 2/1975 Thompson, Jr. 10 Claims, 18 Drawing Sheets 86 90 100 92 91 US 8,757,341 B2 Page 2 (56) References Cited DE 10 2004 004 961 A1 8/2005 DE 10 2004 004 961 B4 3 2006 U.S. PATENT DOCUMENTS DE 10 2005 062 702 A1 T 2007 DE 601 21 281 T2 T 2007 7,562,755 B2 7/2009 Spahr DE 10 2007 O30 190 A1 1, 2008 8,590,421 B2 * 1 1/2013 Meggiolan et al. ........... 384,545 DE 10 2006 040919 A1 3f2008 2002/0072446 A1 6/2002 Kanehisa et al. DE 10 2007 O19 611 A1 10, 2008 2003.0034220 A1 2/2003 Chen DE 10 2007 O19 612 A1 10, 2008 2003/0155204 A1 8/2003 Demir et al. DE 10 2008 020 257 A1 11, 2008 2008/0006500 A1* 1/2008 Spahr .............................. 192,64 DE 20 2007 O16 681 U1 11, 2008 2009,0255774 A1 10, 2009 Hsu DE 10 2007 O58587 A1 6, 2009 2010/0170762 A1* 7/2010 Schlanger ....................... 192/46 DE 10 2008 O13938 A1 9, 2009 DE 10 2008 O21 803 A1 11, 2009 FOREIGN PATENT DOCUMENTS EP O 522983 A1 1, 1993 EP O998 399 B1 9, 2002 DE 34 08.371 A1 9, 1984 FR 1038 012 6, 1951 DE 298 O3 667 U1 6, 1998 WO WO99,04988 2, 1999 DE 19847 673 A1 4, 2000 WO WOOO. 34.056 6, 2000 DE 101 32 090 A1 1/2003 WO WO 2004/096.580 A1 11, 2004 DE 203 06760 U1 10, 2004 DE 203 06761 U1 10, 2004 * cited by examiner U.S. Patent Jun. 24, 2014 Sheet 1 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 2 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 3 of 18 US 8,757,341 B2 r v U.S. Patent Jun. 24, 2014 Sheet 4 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 5 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 6 of 18 US 8,757,341 B2 ?E, MUL U.S. Patent Jun. 24, 2014 Sheet 7 of 18 US 8,757,341 B2 54 O ço?OOO} 4 O 2 U.S. Patent Jun. 24, 2014 Sheet 8 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 9 of 18 US 8,757,341 B2 18 ... O O109 34 O109 | Ol 18 Fig. 9 U.S. Patent Jun. 24, 2014 Sheet 10 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 11 of 18 US 8,757,341 B2 0|| U.S. Patent Jun. 24, 2014 Sheet 12 of 18 US 8,757,341 B2 114 116 112 U.S. Patent Jun. 24, 2014 Sheet 13 of 18 US 8,757,341 B2 9|-61 U.S. Patent Jun. 24, 2014 Sheet 14 of 18 US 8,757,341 B2 U.S. Patent Jun. 24, 2014 Sheet 15 of 18 US 8,757,341 B2 212 246 247 232 244 Fig. 15 332 312 Fig. 16 U.S. Patent Jun. 24, 2014 Sheet 16 of 18 US 8,757,341 B2 co ill S. E. S. Q U.S. Patent Jun. 24, 2014 Sheet 17 of 18 US 8,757,341 B2 12 32 126 122 s 16O 122 126 32 124 12 Fig. 18 U.S. Patent Jun. 24, 2014 Sheet 18 of 18 US 8,757,341 B2 347b 12 33 344 2YYY 345 347a 32 348 349, ECH, - 35ON 351 Fig. 19 US 8,757,341 B2 1. 2 HUB WITH STAR RATCHET tional axis establishes a coupling between the freewheel body and the hub body. In a second rotational direction which is CROSS-REFERENCE TO RELATED opposite that of the first rotational direction, the freewheel APPLICATIONS body is freely rotatable with respect to the hub body. The freewheel arrangement comprises a first and a second spur This application claims the benefit of U.S. Provisional gearing which face one another, one being rotationally fixed Patent Application No. 61/370,375, filedon Aug. 3, 2010, and with respect to the hub body, and the other being rotationally priority to German Patent Application Number 10 2010 033 fixed with respect to the freewheel body. 268.2, filed on Aug. 3, 2010, and German Patent Application According to an exemplary embodiment of the invention, Number 10 2010 033 272.0, filed on Aug. 3, 2010, the entire 10 the first bearing device comprises a first and a second hub disclosure of which is hereby incorporated by reference. bearing, each having an innerring and an outerring. Each hub bearing is axially held with the inner ring on one side in a first FIELD OF THE INVENTION holding direction with respect to the hub axle, i.e., with respect to the axle body. Each hub bearing is also held with the The present invention relates to a rear wheel hub for a 15 outer ring in a second holding direction, opposite that of the bicycle, a rear wheel for a bicycle, and a bicycle. first holding direction, with respect to the hub body, the first holding direction of the second hub bearing extending oppo BACKGROUND OF THE INVENTION site to the first holding direction of the first hub bearing. The term “inner ring refers to the inner raceway, i.e., the In order to provide the user of a bicycle, in particular a inner bearing Surface of the respective bearing, and "outer mountain bike or a racing bike, with different gears for dif ring refers to the outer raceway, i.e., the outer bearing Surface ferent speeds and different road and path profiles, derailleurs of the bearing. are used in which multiple sprockets of different sizes are The term “holding on one side' refers to holding in one provided at the rear wheel hub. These sprocket packages, also direction; i.e., for holding on one side a hold is provided in referred to as the cogset, are connected via a freewheel to the 25 one direction, while a motion is possible in the other direc hub, i.e., the hub body. The freewheel ensures that during a tion. forward motion of the pedals the drive force is transmitted to Thus, the hub bearings are each held relative to the hub the rear wheel via the chain, and that during a motion in the axle, i.e., with the particular inner ring in the axial direction, opposite direction, i.e., when the crank is moving backwards on only side, i.e., on one side or in one direction. No hold is or is at a standstill and at the same time the bicycle is moving 30 provided at the inner ring on the other side of the inner ring, forward, the sprocket, i.e., the cogset, is decoupled from the i.e., in the other direction.
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