LONGITUDINAL ADJUSTER FOR A VEHICLE SEAT, AND VEHICLE SEAT

• US 20200130538A1
• Filed: 06/29/2018
• Published: 04/30/2020
• Est. Priority Date: 07/14/2017
• Status: Active Grant

• Current Assignee: Keiper Seating Mechanisms Company Limited
• Original Assignee: Adient Engineering & IP GmbH (Adient plc)
• Inventors: EMRICH, HOLGER, KOENIG, MICHAEL, REISCHMANN, MARTIN, RHEINHEIMER, FRANK, VELTEN, RALF, BINGERT, THOMAS, DICK, ERIK
• Granted Patent: US 11,065,986 B2
• Time in Patent Office: Days
• CPC Class Codes: B60N 2/015 Attaching seats directly to vehicle chassis
• CPC Class Codes: B60N 2/02246 Electric motors therefor
• CPC Class Codes: B60N 2/067 by linear actuators, e.g. linear screw mechanisms
• CPC Class Codes: B60N 2/0705 omega-shaped
• CPC Class Codes: B60N 2/0715 C or U-shaped
• CPC Class Codes: B60N 2/43 Safety locks for back-rests B60N2/433

Abstract

A longitudinal adjuster for a vehicle seat having at least one pair of rails. The at least one pair of rails may be formed from a first seat rail for connecting to a seat structure, and from a second seat rail for connecting to a vehicle structure. The seat rails of the pair of rails are displaceable in the longitudinal direction relative to each other and mutually engage around each other to form an inner channel. A securing profile, which is fastened to the first seat rail, is arranged in the inner channel. A rack which is fixed relative to the second seat rail is arranged in the inner channel. The securing profile and the rack are normally spaced apart from each other and enter into engagement with each other in a form-fitting manner in reaction to a predetermined action of force.

Claims

1-15. -15. (canceled)

16. A longitudinal adjuster for a vehicle seat, having at least one pair of rails, which is formed from a first seat rail for connecting to a seat structure, and from a second seat rail for connecting to a vehicle structure, wherein the seat rails of the pair of rails are displaceable in the longitudinal direction relative to each other and mutually engage around each other, thereby forming an inner channel, wherein a securing profile, which is fastened to the first seat rail, is arranged in the inner channel, wherein a rack which is fixed relative to the second seat rail is arranged in the inner channel, wherein the securing profile and the rack are normally spaced apart from each other and enter into engagement with each other in a form-fitting manner in reaction to a predetermined action of force.

17. The longitudinal adjuster as claimed in claim 16, wherein the rack has a toothing with downwardly directed teeth.

18. The longitudinal adjuster as claimed in claim 16, wherein the rack is connected by a weld at least in a front portion to the second seat rail via an adapter.

19. The longitudinal adjuster as claimed in claim 16, wherein the rack is guided out of the inner channel to the rear and is connectable in a rear portion to a vehicle structure via an adapter.

20. The longitudinal adjuster as claimed in claim 17, wherein the teeth of the toothing each have two tooth flanks which are inclined toward each other in the direction of a tooth tip.

21. The longitudinal adjuster as claimed in claim 20, wherein the teeth have a rectangular or trapezoidal cross section.

22. The longitudinal adjuster as claimed in claim 17, wherein the toothing of the rack is a helical toothing.

23. The longitudinal adjuster as claimed in claim 17, wherein the teeth have a tooth thickness in the range of 0.2 mm to 5 mm.

24. The longitudinal adjuster as claimed claim 17, wherein the teeth have a tooth height in the range of 1 mm to 5 mm.

25. The longitudinal adjuster as claimed in claim 16, wherein the securing profile has a substantially L-shaped cross section.

26. The longitudinal adjuster as claimed in claim 16, wherein the securing profile can be screwed to a horizontal portion of the first seat rail.

27. The longitudinal adjuster as claimed in claim 16, wherein the securing profile has a through opening in a vertical portion.

28. The longitudinal adjuster as claimed in claim 16, wherein the securing profile engages around the rack such that the rack penetrates the through opening of the securing profile.

29. The longitudinal adjuster as claimed in claim 16, wherein the rack is arranged aligned in the longitudinal direction behind a spindle of a motor-adjustable longitudinal adjuster.