Longitudinal adjuster for a seat and seat

Patent metadata

Field	Value
Publication number	US-2021347282-A1
Application number	US-201917277348-A
Country	US
Kind code	A1
Filing date	Sep 12, 2019
Priority date	Sep 24, 2018
Publication date	Nov 11, 2021
Grant date	—

Abstract

A longitudinal adjuster for a seat, in particular vehicle seat, may have at least a fixed lower track and an upper track slidable coupled to the lower track, an adjustment device for longitudinally adjusting the upper track relative to the lower track, a latch mechanism to latch the upper track relative to the lower track, and an electromechanical device relatively coupled to the latch mechanism. The electromechanical device may be configured to bias the latch mechanism between a release position and a latch position, and upon release of the latch mechanism the adjustment device is actuated to drive the upper track relative to the lower track.

First claim

1 - 14 . (canceled)

15 . A longitudinal adjuster for a seat, in particular vehicle seat, comprising at least:
a fixed lower track and an upper track slidable coupled to the lower track, an adjustment device for longitudinally adjusting the upper track relative to the lower track, a latch mechanism to latch the upper track relative to the lower track, and an electromechanical device relatively coupled to the latch mechanism, wherein the electromechanical device is configured to bias the latch mechanism between a release position and a latch position, and upon release of the latch mechanism the adjustment device is actuated to drive the upper track relative to the lower track.

16 . The longitudinal adjuster according to claim 15 , wherein the electromechanical device is configured to bias the latch mechanism from the release position to the latch position when the latch mechanism and/or the upper track arrive/s at a designated position.

17 . The longitudinal adjuster according to claim 15 , wherein the adjustment device is configured to stop driving when the latch mechanism and/or the upper track are/is in an end stop position.

18 . The longitudinal adjuster according to claim 15 , wherein the electromechanical device is configured as solenoid having at least one electromagnetic actuator to bias the latch mechanism in one direction and at least one spring element to bias the latch mechanism in an opposite direction.

19 . The longitudinal adjuster according to claim 15 , wherein the electromechanical device is arranged on the upper track and is directly coupled to the latch mechanism.

20 . The longitudinal adjuster according to claim 15 , wherein the electromechanical device is arranged distanced from the upper track, wherein the electromechanical device is coupled to the latch mechanism via a towel bar.

21 . The longitudinal adjuster according to claim 15 , wherein the adjustment device is configured as an external transmission device.

22 . The longitudinal adjuster according to claim 15 , wherein the adjustment device comprises a rack and pinion drive arranged at least partially along a length of the tracks.

23 . The longitudinal adjuster according to claim 22 , wherein the rack and pinion drive comprises at least a toothed rack which is relatively fixed to the lower track and a pinion which is relatively fixed to the upper track.

24 . The longitudinal adjuster according to claim 22 , wherein the adjustment device comprises a driving unit to power the rack and pinion drive upon release of the latch mechanism.

25 . The longitudinal adjuster according to claim 24 , wherein the driving unit is relatively coupled to the upper track.

26 . The longitudinal adjuster according to claim 22 , wherein the adjustment device comprises a clutch unit to connect or disconnect the driving unit and the rack and pinion drive upon release or latching of the latch mechanism.

27 . A seat, in particular vehicle seat, comprising at least a seat pan, a backrest and a longitudinal adjuster according to claim 15 .

28 . The seat according to claim 27 , wherein the longitudinal adjuster is configured to move at least the seat pan between a use and comfort position and an easy-entry position.

Assignees

• Adient Eng & Ip Gmbh

Inventors

• Bozintan Vasile Emil

Classifications

• B60N2/0296

  Central command actuator to selectively switch on or engage one of several special purpose circuits or mechanisms · CPC title

• B60N2/0818 Primary

  inside the rail · CPC title

• B60N2002/924

  using electric or hydraulic energy · CPC title

• B60N2/067

  by linear actuators, e.g. linear screw mechanisms · CPC title

• B60N2/0705 Primary

  omega-shaped · CPC title