US 12,257,930 B2
Rail system for a vehicle seat
Bertrand Touzet, Pollhagen (DE); and Dan Stoia, Stadthagen (DE)
Assigned to Faurecia Autositze GmbH, Hannover (DE)
Filed by Faurecia Autositze GmbH, Hannover (DE)
Filed on Apr. 28, 2022, as Appl. No. 17/731,537.
Claims priority of application No. 10 2021 111 061.0 (DE), filed on Apr. 29, 2021.
Prior Publication US 2022/0348119 A1, Nov. 3, 2022
Int. Cl. B60N 2/07 (2006.01)
CPC B60N 2/0705 (2013.01) 9 Claims
OG exemplary drawing
 
1. A rail system for a vehicle seat includes
a lower rail for connecting to a floor of a vehicle and an upper rail guided in the lower rail for connecting to a seating portion of the vehicle seat, where the upper rail is adjustable in a longitudinal direction in relation to the lower rail via a longitudinal adjustment device, the longitudinal adjustment device comprising a threaded spindle attached inside the lower rail and a spindle nut screwed onto the threaded spindle which is firmly affixed to the upper rail via a transmission housing so that the upper rail is displaced in the longitudinal direction by motorised actuation of the longitudinal adjustment device guided by the lower rail, the threaded spindle being covered, at least in certain regions, in the lower rail by a deformable protective element extending in the longitudinal direction, the protective element comprising longitudinal edges extending in the longitudinal direction,
wherein the longitudinal edges overlap in the transverse direction above the threaded spindle to form at least one overlap region extending along a length of the spindle in the longitudinal direction, such that the threaded spindle in the at least one overlap region is covered at the top by the protective element, and the longitudinal edges are elastically deformable in the transverse direction so that an opening is formed adjacent to the at least one overlap region by a guide element, the opening formed between the longitudinal edges above the threaded spindle from which the transmission housing connected to the upper rail projects, and the longitudinal edges being elastically deformable or elastically deformed in the transverse direction by the guide element, the guide element adjustable in the longitudinal direction to change a longitudinal location of the opening and the at least one overlap region, the guide element being formed by the transmission housing.