Longitudinal adjuster and vehicle seat

Patent metadata

Field	Value
Publication number	US-10882425-B2
Application number	US-201716317641-A
Country	US
Kind code	B2
Filing date	Jul 6, 2017
Priority date	Jul 14, 2016
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

A motor-vehicle seat longitudinal adjuster ( 10 ) includes a seat part seat rail ( 14 ) and a vehicle structure seat rail ( 16 ). The seat rails ( 14, 16 ) are slidable relative to each other in a longitudinal direction (x) and engage each other forming an inner channel ( 18 ). An anchor ( 20 ), fastened to the second seat rail ( 16 ), is arranged in the inner channel ( 18 ). A reinforcing profiled element ( 22 ), fastened to the first seat rail ( 14 ), is arranged in the inner channel ( 18 ). The reinforcing profiled element ( 22 ) and the anchor ( 20 ) are spaced apart from each other and engage with each other in response to a defined application of force (a crash). The reinforcing profiled element ( 22 ) has a connecting section ( 24 ) extending out of the inner channel ( 18 ) toward a rear for connection to a rear end surface ( 8 ) of a seat frame side part ( 6 ).

First claim

The invention claimed is:

1. A longitudinal adjuster for a vehicle seat, the longitudinal adjuster comprising:
at least one rail pair comprising a first seat rail for connection to a seat frame side part, and a second seat rail for connection to a vehicle structure, wherein the seat rails of the seat rail pair are displaceable relative to one another in a longitudinal direction and engage one another and form an internal channel;
an anchor which is fixed to the second seat rail in the internal channel;
a reinforcement profile fixed to the first seat rail in the internal channel, wherein the reinforcement profile and the anchor are spaced apart from one another in a normal situation and engage with one anchor, in reaction to a predefined application of force, wherein the reinforcement profile has a connection portion which is led rearwardly out of the internal channel and which is connectable to a rear end of a seat frame side part;
wherein:
the connection portion has a recess and the seat frame side part has a projection; and
in a mounted state, the projection of the seat frame side part engages into the recess of the connection portion of the reinforcement profile, or
the connection portion has a projection and the seat frame side part has a recess; and
in the mounted state, the projection of the connection portion of the reinforcement profile engages the recess of the seat frame side part.

2. The longitudinal adjuster as claimed in claim 1 , wherein the connection portion is connectable to a rearwardly directed surface of a seat frame side part.

3. The longitudinal adjuster as claimed in claim 1 , wherein the connection portion is formed integrally with the reinforcement profile.

4. The longitudinal adjuster as claimed in claim 1 , wherein the connection portion is bent upward through approximately 90° about a bend axis running in a transverse direction.

5. The longitudinal adjuster as claimed in claim 1 , wherein the connection portion projects approximately perpendicularly from a main body of the reinforcement profile.

6. The longitudinal adjuster as claimed in claim 5 , wherein the connection portion projects approximately perpendicularly from a rear end of the main body of the reinforcement profile.

7. The longitudinal adjuster as claimed in claim 1 , wherein the anchor is connected to a vehicle-specific seat rail adapter, or rail-floor adapter for adaptation to a structure-side connection profile.

8. The longitudinal adjuster as claimed in claim 1 , wherein the reinforcement profile is, in the case of a vehicle seat pre-mounted on a rail pair, insertable from the rear end of the rail pair into the internal channel between the first seat rail and the second seat rail.

9. The longitudinal adjuster as claimed in claim 1 , wherein the reinforcement profile is held by means of a fixing element on a rearwardly directed surface of the seat frame side part.

10. The longitudinal adjuster as claimed in claim 9 , wherein the fixing element is a rivet or a screw connection.

11. The longitudinal adjuster as claimed in claim 9 , wherein one passage bore is provided in the connection portion and one passage bore is provided in the rearwardly directed surface for connection by means of the fixing element.

12. The longitudinal adjuster as claimed in claim 11 , wherein a diameter of the passage bore in the connection portion is slightly larger than a diameter of the passage bore in the seat frame part.

13. A vehicle seat comprising:
a seat frame side part; and
a longitudinal adjuster comprising:
at least one rail pair comprising a first seat rail for connection to a seat frame side part, and a second seat rail for connection to a vehicle structure, wherein the seat rails of the seat rail pair are displaceable relative to one another in a longitudinal direction and engage one another and form an internal channel;
an anchor fixed to the second seat rail, in the internal channel;
a reinforcement profile fixed to the first seat rail in the internal channel, wherein the reinforcement profile and the anchor are spaced apart from one another in a normal situation and engage with one anchor, in reaction to a predefined application of force, wherein the reinforcement profile has a connection portion which is led rearwardly out of the internal channel and which is connectable to a rear end of a seat frame side part, wherein the seat frame side part is connected to the first seat rail;
either wherein:
the connection portion has a recess and the seat frame side part has a projection; and
in a mounted state, the projection of the seat frame side part engages into the recess of the connection portion of the reinforcement profile;
or wherein:
the connection portion has a projection and the seat frame side part has a recess; and
in the mounted state, the projection of the connection portion of the reinforcement profile engages the recess of the seat frame side part.

14. The vehicle seat as claimed in claim 13 , wherein:
the connection portion is connected to a rearwardly directed surface of the seat frame side part;
the connection portion is formed integrally with the reinforcement profile; and
the connection portion is bent upward through approximately 90° about a bend axis running in a transverse direction.

15. The vehicle seat as claimed in claim 13 , further comprising a vehicle-specific seat rail adapter or rail-floor adapter for adaptation to a structure-side connection profile, wherein the anchor is connected to the vehicle-specific seat rail adapter or rail-floor adapter.

16. The vehicle seat as claimed in claim 13 , wherein:
one passage bore is provided in the connection portion and one passage bore is provided in the rearwardly directed surface for connection by means of a fixing element; and
a diameter of the passage bore in the connection portion is slightly larger than a diameter of the passage bore in the seat frame part.

Assignees

• Adient Luxembourg Holding Sarl
• Adient Luxembourg Holding S Ar L

Inventors

• Emrich Holger
• Koenig Michael
• Reischmann Martin
• Velten Ralf

Classifications

• B60N2/0705 Primary

  omega-shaped · CPC title

• B60N2/0715

  C or U-shaped · CPC title

• B60N2/0732

  Attachment of seat frame to the slide, e.g. eyelets · CPC title

• B60N2/08

  characterised by the locking device · CPC title

• B60N2/073

  Reinforcement members preventing slide dislocation · CPC title