LONGITUDINAL SEAT ADJUSTER FOR A VEHICLE SEAT HAVING EASY ENTRY FUNCTIONALITY AND FOLDING FUNCTIONALITY

• US 20130292982A1
• Filed: 03/12/2013
• Published: 11/07/2013
• Est. Priority Date: 03/15/2012
• Status: Active Grant

• Current Assignee: Adient Luxembourg Holding S..R.L.
• Original Assignee: Johnson Controls GmbH (Adient plc)
• Inventors: Radermacher, Markus, Sooda, Jeevan, Deshmukh, Harshal, Woolston, Stuart
• Granted Patent: US 9,126,507 B2
• Time in Patent Office: Days
• US Class Current: 297/318
• CPC Class Codes: B60N 2/08 characterised by the locking device
• CPC Class Codes: B60N 2/12 slidable and tiltable
• CPC Class Codes: B60N 2/14 rotatable, e.g. to permit easy access B60N2/10 , B60N2/2869 take precedence
• CPC Class Codes: B60N 2/146 characterised by the locking device
• CPC Class Codes: B60N 2/20 the back-rest being tiltable, e.g. to permit easy access B60N2/04, B60N2/22 , B60N2/3002 take precedence

Abstract

The invention relates to a longitudinal seat adjuster for a vehicle seat having easy entry functionality and folding functionality, comprising a rail system for longitudinal seat adjustment having a lower rail and an upper rail and an unlocking device.

Claims

1. A longitudinal seat adjuster for a vehicle seat having easy entry functionality and folding functionality, comprising a rail system for longitudinal seat adjustment comprising a lower rail and an upper rail, an unlocking device for unlocking the longitudinal seat adjustment and a securing device for fixing the vehicle seat to the rail system, wherein the unlocking device comprises a roller element and at least two unlocking levers arranged at two sides of the vehicle seat which each have a protruding guiding lever, wherein the securing device is able to be released and the roller element rolls on the guiding lever in the manner of a cam mechanism for the easy entry functionality.

2. The longitudinal seat adjuster according to claim 1, wherein during pivot movement of the vehicle seat about a rotation axis, the roller element rolls on the guiding lever.

3. The longitudinal seat adjuster according to claim 1, wherein the guiding levers each have an outer contour that the unlocking levers can be moved at least into an unlocking position by means of the roller element which engages on the guiding levers, whereby locking of the rails can be released.

4. The longitudinal seat adjuster according to claim 1, wherein the guiding levers each have an outer contour, wherein the roller element further engages on the guiding lever, and wherein by the vehicle seat being pivoted about the rotation axis in a travel direction, the vehicle seat can be pivoted forwards to a maximum extent and can be longitudinally displaced.

5. The longitudinal seat adjuster according to claim 1, wherein the outer contour of the guiding lever is constructed in a curved manner.

6. The longitudinal seat adjuster according to claim 1, wherein there are arranged at each of the two sides of the vehicle seat securing devices to which a backrest of the vehicle seat is secured so as to be able to be pivoted relative to a seat face about a pivot axis, and wherein each securing device comprises at least one locking element fixing the vehicle seat to the rail system in a locked position wherein the backrest is able to be pivoted about the pivot axis.

7. The longitudinal seat adjuster according to claim 6, wherein opposing ends of the securing devices are constructed as rotation axes about which the vehicle seat can be pivoted with the securing devices arranged at both sides when the locking elements are released.

8. The longitudinal seat adjuster according to claim 6, wherein the locking elements are each constructed as hook-like formations which releasably engage in correspondingly constructed receiving elements in the locked position.

9. The longitudinal seat adjuster according to claim 1, wherein the securing device is provided with a retention pin which protrudes therefrom and on which the associated roller element is rotatably arranged.

10. The longitudinal seat adjuster according to claim 1, wherein the unlocking levers are each coupled to a transmission element in a rotationally secure manner.