# US 11,299,071 B2 · Adjustment device for the longitudinal adjustment of a vehicle seat

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- Number: US 11,299,071 B2
- Document ID: US11299071B2
- Status: Granted
- Kind: B2
- Application number: 16/323,494
- Filed: 2017-12-11
- Published: 2021-10-07
- Granted: 2022-04-12
- Earliest claimed: 2016-12-14
- Assignees: Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg
- Applicants: Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Coburg
- Inventors: Joerg Gropp; Marcel Amstein; Jochen Hofmann; Gregor Kroener; Sandra Kieser; Fabian Rehmet
- Web page: https://patentgrep.com/patent/US11299071B2

## CPC

- B60N 2/07: Slide construction
- B60N 2/0747: {the opening of the cross section being oriented in a direction different from the vertical, e.g. transversal}
- B60N 2/005: Arrangement or mounting of seats in vehicles {, e.g. dismountable auxiliary seats}(B60N2/02 takes precedence {; for railway vehicles B61D1/04})
- B60N 2/01575: {key sliding inside the vehicle floor or rail}
- B60N 2/01591: {with wheels coupled to the seat}
- B60N 2/02: the seat or part thereof being movable, e.g. adjustable (adjustable arm-rests B60N2/75; adjustable head-rests B60N2/806)
- B60N 2/0224: {Non-manual adjustments, e.g. with electrical operation}
- B60N 2/02246: {Electric motors therefor}
- B60N 2/06: slidable (B60N2/12 {, B60N2/2209} take precedence)
- B60N 2/067: {by linear actuators, e.g. linear screw mechanisms}
- B60N 2/12: slidable and tiltable
- B60N 2/1635: {characterised by the drive mechanism}
- B60N 2/164: {Linear actuator, e.g. screw mechanism}
- B60N 2/1695: {with simultaneous height and inclination adjustment}
- B60N 2/1803: {with independent front and/or rear adjustment}
- B60N 2/185: {characterised by the drive mechanism}
- B60N 2/1853: {Linear actuator, e.g. screw mechanism}
- B60N 2002/0212: {the seat or seat part turning about or moving along a longitudinal axis}
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

It is provided an adjusting device for the longitudinal adjustment of a vehicle seat, comprising at least one rail for defining a longitudinal seat axis along which a seat base of the vehicle seat is adjustable, and for supporting at least one adjusting unit of the adjusting device, and at least two shiftably guided adjusting units arranged one behind the other along the longitudinal seat axis, to which the seat base is to be fixed in order to be adjustable along the longitudinal seat axis. The at least two adjusting units are adjustable relative to each other along the longitudinal seat axis, and each adjusting unit is assigned a separate drive for the power-operated adjustment along the longitudinal seat axis.

## Claims

### Claim 1

An adjusting device for the longitudinal adjustment of a vehicle seat comprising
at least one rail for defining a longitudinal seat axis along which a seat base of the vehicle seat is adjustable, and
at least two shiftably guided adjusting units arranged one behind the other along the longitudinal seat axis, to which the seat base is to be fixed in order to be adjustable along the longitudinal seat axis,
wherein the at least one rail supports the at least two adjusting units and the at least two adjusting units are adjustable relative to each other along the longitudinal seat axis, and each adjusting unit is assigned a separate drive for a power-operated adjustment along the longitudinal seat axis.

### Claim 2 (depends on 1)

The adjusting device according to claim 1, wherein at least one adjusting unit of the at least two adjusting units includes a bearing part for connection to a rocker of the seat base.

### Claim 3 (depends on 1)

The adjusting device according to claim 1, wherein for the power-operated adjustment of at least one adjusting unit of the at least two adjusting units a spindle and a spindle nut meshing therewith are provided.

### Claim 4 (depends on 3)

The adjusting device according to claim 3, wherein the spindle is stationary and two spindle nuts are provided, each spindle nut assigned to an adjusting unit of the at least two adjusting units and each spindle nut meshing with the spindle for the power-operated adjustment of the at least two adjusting units.

### Claim 5 (depends on 3)

The adjusting device according to claim 3, wherein a longitudinal axis of the spindle extends substantially perpendicularly to a drive axis of the drive of an adjusting unit of the at least two adjusting units.

### Claim 6 (depends on 1)

The adjusting device according to claim 1, wherein the adjusting device includes an electronic control unit for controlling the adjusting movements of the at least two adjusting units relative to each other.

### Claim 7 (depends on 6)

The adjusting device according to claim 6, wherein the electronic control unit is equipped to vary a distance of the at least two adjusting units arranged one behind the other relative to each other along the longitudinal seat axis for a variation of an inclination and/or a height of the seat base and/or a cushion support arranged thereon.

### Claim 8 (depends on 1)

The adjusting device according to claim 1, wherein
(a) the at least two adjusting units are shiftably mounted on one and the same rail or
(b) the adjusting device includes a first rail and a second rail and a first adjusting unit of the at least two adjusting units is shiftably mounted on the first rail and a second adjusting unit of the at least two adjusting units is shiftably mounted on the second rail.

### Claim 9 (depends on 1)

The adjusting device according to claim 1, wherein at least one adjusting unit of the at least two adjusting units is shiftably mounted on the at least one rail via at least one supporting element.

### Claim 10 (depends on 9)

The adjusting device according to claim 9, wherein the at least one supporting element at least one of
(a) slidingly rests against the rail and
(b) is rotatably mounted and can perform a rotary movement for shifting the adjusting unit along the longitudinal seat axis.

### Claim 11 (depends on 9)

The adjusting device according to claim 9, wherein the at least one supporting element is supported on the rail or a component connected thereto.

### Claim 12 (depends on 11)

The adjusting device according to claim 11, wherein the at least one supporting element is supported on a convexly curved guide profile that is integrally formed with the rail or that is configured as a separate component and is connected to the rail.

### Claim 13 (depends on 9)

The adjusting device according to claim 9, wherein for the power-operated adjustment of at least one adjusting unit of the at least two adjusting units a spindle and a spindle nut meshing therewith are provided and the spindle is supported on the at least one supporting element.

### Claim 14 (depends on 13)

The adjusting device according to claim 13, wherein at least two supporting elements are provided on an adjusting unit of the at least two adjusting units, the spindle extending through between the same.

### Claim 15 (depends on 14)

The adjusting device according to claim 14, wherein at least two pairs of two supporting elements each arranged one behind the other along the longitudinal seat axis are provided on an adjusting unit and the spindle extends through the at least two pairs.

### Claim 16 (depends on 1)

A vehicle seat with at least one adjusting device according to claim 1.

### Claim 17 (depends on 16)

The vehicle seat according to claim 16, wherein the at least one rail and at least one adjusting unit of the at least two adjusting units are arranged below a floor of the vehicle and the floor includes a longitudinally extended cutout from which one bearing part of the at least one adjusting unit protrudes for the connection of the seat base to the at least one adjusting unit at the floor of the vehicle.

### Claim 18 (depends on 16)

The vehicle seat according to claim 16, wherein the vehicle seat is adjustable via the at least one adjusting device along the longitudinal seat axis between a position in a first seat row and a position in a second seat row of the vehicle.

### Claim 19 (depends on 16)

The vehicle seat according to claim 16, wherein the vehicle seat includes two adjusting devices each with at least two adjusting units arranged one behind the other along the longitudinal seat axis, to each of which a separate drive is assigned for the power-operated adjustment, and the total of at least four drives of the adjusting units are actuatable in pairs and/or individually in order to adjust an inclination and/or a height of the seat base or a cushion support arranged thereon relative to a floor of a vehicle via the at least two adjusting devices.