US 12,240,413 B2
Pretensioner tube for a belt tensioner
Michal Kula, Czȩstochowa (PL); Damian Suchanski, Grabowka (PL); Jacek Modrzynski, Tarnowskie Góry (PL); Blazej Kotas, Witkowice (PL); and Dawid Migon, Wloszczowa (PL)
Assigned to ZF AUTOMOTIVE GERMANY GMBH, Alfdorf (DE); and ZF AUTOMOTIVE SYSTEMS POLAND SP.ZO.O, Czestochowska (PL)
Appl. No. 17/779,581
Filed by ZF AUTOMOTIVE GERMANY GMBH, Alfdorf (DE); and ZF AUTOMOTIVE SYSTEMS POLAND SP.ZO.O, Czestochowa (PL)
PCT Filed Nov. 17, 2020, PCT No. PCT/EP2020/082395
§ 371(c)(1), (2) Date May 25, 2022,
PCT Pub. No. WO2021/104941, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 10 2019 132 066.6 (DE), filed on Nov. 27, 2019.
Prior Publication US 2023/0001884 A1, Jan. 5, 2023
Int. Cl. B60R 22/46 (2006.01)
CPC B60R 22/46 (2013.01) [B60R 2022/4647 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A wound tensioner tube (18) for a belt tensioner to guide an elongate load transmission element (20) made from a substantially deformable material, comprising
an exit end (32) provided for being directed to a drive gear (14) of the belt tensioner,
and a tube section (34) adjacent to the exit end (32), the tube section (34) being configured and arranged so that the longitudinal axis (L) of the tube section (34) is substantially tangent to the drive gear (14),
wherein
in the tube section (34) adjacent to the exit end (32), an elongate projection (36) protruding into the interior of the tube is formed the longitudinal axis (I) of which is inclined in relation to the longitudinal axis (L) of the tube section (34).