US 12,064,856 B2
Eccentric drive for a portable power tool
Ernst-Rudolf Lübkert, Landsberg am Lech (DE); Ferdinand Kristen, Gilching (DE); Michael Göttlinger, Landshut (DE); Maximilian Kummer, Ulm (DE); Michael Schamberger, Scheuring (DE); Johannes Marder, Neu-Ulm (DE); Jeltsch Thomas, Domat/Ems (CH); Simon Weis, Aschaffenburg (DE); and Andreas Janisch, Domat/Ems (DE)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 17/273,013
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Sep. 24, 2019, PCT No. PCT/EP2019/075676
§ 371(c)(1), (2) Date Mar. 3, 2021,
PCT Pub. No. WO2020/069917, PCT Pub. Date Apr. 9, 2020.
Claims priority of application No. 18198563 (EP), filed on Oct. 4, 2018.
Prior Publication US 2021/0323135 A1, Oct. 21, 2021
Int. Cl. B25D 11/12 (2006.01); B29C 45/00 (2006.01); B29C 45/14 (2006.01); B29K 77/00 (2006.01); B29K 105/08 (2006.01); B29K 105/12 (2006.01); B29K 307/04 (2006.01); B29L 31/00 (2006.01)
CPC B25D 11/125 (2013.01) [B29C 45/0005 (2013.01); B29C 45/14786 (2013.01); B25D 2211/068 (2013.01); B25D 2222/06 (2013.01); B25D 2222/61 (2013.01); B25D 2250/181 (2013.01); B25D 2250/331 (2013.01); B29K 2077/00 (2013.01); B29K 2105/08 (2013.01); B29K 2105/12 (2013.01); B29K 2307/04 (2013.01); B29L 2031/748 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An eccentric drive for a portable power tool, the eccentric drive comprising:
a motor;
an eccentric wheel driven by the motor;
a linear guide;
a slide guided along an axis by the linear guide;
a connecting rod having a first head suspended on the slide and a second head suspended on the eccentric wheel;
a bearing bush for rotatable mounting of the connecting rod and provided in at least one of the first and second heads;
wherein the at least one of the first and second heads is composed of an injection molding material, and the bearing bush is composed of a fiber composite material including continuous carbon fibers embedded in a thermoplastic matrix, and
wherein the continuous carbon fibers begin at one end of the bearing bush, extend around the bearing bush, and end at an opposite end of the bearing bush.