US 11,999,390 B2
Rail system with a rail and mobile parts movable along the rail
Michael Lindenfelser, Bruchsal (DE); Andreas Wanjek, Waghäusel (DE); Zhidong Hua, Bruchsal (DE); and Thomas Schäfer, Karlsdorf-Neuthard (DE)
Assigned to SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
Appl. No. 17/614,526
Filed by SEW-EURODRIVE GMBH & CO. KG, Bruchsal (DE)
PCT Filed May 26, 2020, PCT No. PCT/EP2020/025246
§ 371(c)(1), (2) Date Nov. 28, 2021,
PCT Pub. No. WO2020/239264, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 102019003762.6 (DE), filed on May 29, 2019.
Prior Publication US 2022/0219743 A1, Jul. 14, 2022
Int. Cl. B61L 27/70 (2022.01); B61L 3/22 (2006.01); B61L 15/00 (2006.01)
CPC B61L 15/0027 (2013.01) [B61L 3/225 (2013.01); B61L 3/227 (2013.01); B61L 27/70 (2022.01); B61L 2003/228 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A rail system, comprising:
a rail including a profiled part arranged on the rail and having a first cavity and a second cavity that extend in parallel to each other and that terminate at an opening into the environment; and
mobile parts adapted to move along the rail;
wherein regions of at least one of the mobile parts at least partially project into the first cavity and into the second cavity, a first one of the regions including a first transmitter and a first receiver arranged in the first cavity, a second one of the regions including a second transmitter and a second receiver arranged in the second cavity, and a stationary transmitter and a stationary receiver are arranged at at least one of the regions of the mobile part that at least partially projects into the first cavity and/or the second cavity.