Longitudinal adjusting device for the motorized longitudinal adjustment of a vehicle seat, and vehicle seat

Patent metadata

Field	Value
Publication number	US-11833933-B2
Application number	US-202017432160-A
Country	US
Kind code	B2
Filing date	Mar 3, 2020
Priority date	Mar 4, 2019
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A longitudinal adjusting device for the motorized longitudinal adjustment of a motor vehicle seat may have a first rail and a second rail. The device may also have a spindle gearbox, a spindle cooperating with the spindle gearbox for the longitudinal adjustment, and a mount for receiving the spindle gearbox. The spindle gearbox may be at least partly held in the inner channel so as to be fixed relative to the first rail. Laterally projecting protrusions of the holding legs of the mount, which legs may be each arranged in front of and behind the spindle gearbox in the longitudinal direction, engage through lateral openings in the first rail. An abutment device having a contact section may be arranged in the region of the lateral openings. The contact section contacts the holding leg arranged in the particular opening. A vehicle seat with the device is also provided.

First claim

What is claimed:

1. A longitudinal adjusting device for the motorized longitudinal adjustment of a motor vehicle seat, having a first rail, a second rail which is displaceable relative to the first rail, wherein an inner channel is formed between the first rail and the second rail, a spindle mechanism and a spindle interacting with the spindle mechanism for the longitudinal adjustment, wherein the spindle mechanism is held by a holder for receiving the spindle mechanism in a manner at least partially fixed in the inner channel relative to the first rail, and the spindle is fixed relative to the second rail, wherein the holder comprises holding limbs each being arranged in the longitudinal direction upstream and downstream of the spindle mechanism, characterized in that laterally protruding protrusions of the holding limbs reach through lateral openings of the first rail, wherein an abutment device with a contact portion is arranged in a region of the lateral openings, wherein each contact portion makes contact with one of the holding limbs arranged in the lateral openings and keeps the contacted holding limb at a distance from an edge portion of the lateral opening forming a gap, wherein the abutment device is configured in the form of a tab.

2. The longitudinal adjusting device as claimed in claim 1 , wherein the abutment device is formed integrally with the first rail.

3. The longitudinal adjusting device as claimed in claim 1 , wherein the abutment device is cut free or punched free from the material of the first rail.

4. The longitudinal adjusting device as claimed in claim 1 , wherein the abutment device is deployed from the first rail.

5. The longitudinal adjusting device as claimed in claim 1 , wherein a flexibility of the abutment device in a transverse direction is higher than a flexibility of the abutment device in the longitudinal direction.

6. The longitudinal adjusting device as claimed in claim 1 , wherein a rigidity of the abutment device in the longitudinal direction is higher than a rigidity of the abutment device in the transverse direction.

7. The longitudinal adjusting device as claimed in claim 1 , wherein the holder is designed as a U-shaped holding clip with two parallel holding limbs.

8. The longitudinal adjusting device as claimed in claim 1 , wherein each free end of the holding limbs is directed downward.

9. The longitudinal adjusting device as claimed in claim 1 , wherein the laterally protruding protrusions are step-shaped.

10. The longitudinal adjusting device as claimed in claim 1 , wherein a shape of each of the laterally protruding protrusions corresponds to the lateral openings in mutually opposite sidewalls of the first seat rail.

11. The longitudinal adjusting device as claimed in claim 1 , wherein the gap is provided on both sides of each holding limb except for the contact of each holding limb with the contact portion of the abutment device in the longitudinal direction.

12. The longitudinal adjusting device as claimed in claim 1 , wherein the gap encircling the laterally protruding protrusions is provided on both sides of each holding limb except for the contact of each holding limb with the contact portion of the abutment device in the longitudinal direction.

13. The longitudinal adjusting device as claimed in claim 1 , wherein the contact portions of two abutment devices of each sidewall of the first rail are oriented toward each other.

14. A motor vehicle seat, having a seat part and a longitudinal adjusting device connected to the seat part for the motorized longitudinal adjustment of the vehicle seat as claimed in claim 1 .

Assignees

• Adient Eng & Ip Gmbh
• Adient Us Llc

Inventors

• Flick Joachim

Classifications

• B60N2/0727 Primary

  Stop members for limiting sliding movement · CPC title

• B60N2/067 Primary

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

• B60N2/0715

  C or U-shaped · CPC title

• B60N2/0705

  omega-shaped · CPC title

• B60N2205/20

  Measures for elimination or compensation of play or backlash · CPC title