Vehicle seat, in particular motor vehicle seat

Patent metadata

Field	Value
Publication number	US-2016347209-A1
Application number	US-201515117283-A
Country	US
Kind code	A1
Filing date	Jan 29, 2015
Priority date	Feb 7, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

A vehicle seat ( 1 ) has a seat part ( 3 ), a backrest ( 5 ), pivotable about a pivot axis (S) with respect to the seat part ( 3 ), a pair of seat rails ( 11, 13 ) for longitudinally adjusting the vehicle seat ( 1 ), and a seat rail locking device ( 17 ) for locking the at least one pair of seat rails ( 11, 13 ). The backrest ( 5 ) can take up a use position ( 5.1 ) suitable for transporting a person, and an easy-entry position ( 5.2 ) in which the backrest ( 5 ) has been pivoted forward about the pivot axis (S) and the seat rail locking device ( 17 ) has been opened via a Bowden cable unit ( 80 ). To pivot the backrest ( 5 ) back out of the easy-entry position ( 5.2 ) in the direction of the use position ( 5.1 ), a limit force has to be overcome that is generated by a compensation spring unit ( 85 ) of the Bowden cable unit ( 80 ).

First claim

1 . A motor vehicle seat comprising:
a seat part; a backrest that is pivotable about a pivot axis with respect to the seat part; at least one pair of seat rails for longitudinally adjusting the vehicle seat; a Bowden cable unit; a seat rail locking device for locking the at least one pair of seat rails, wherein the backrest can take up a use position suitable for transporting a person, and an easy-entry position in which the backrest has been pivoted forward about the pivot axis and the seat rail locking device has been opened via the Bowden cable unit; and a compensation spring unit associated with the Bowden cable unit, wherein, in order to pivot the backrest back out of the easy-entry position in the direction of the use position, a limit force has to be overcome and the limit force is generated by the compensation spring unit of the Bowden cable unit.

2 . The vehicle seat as claimed in claim 1 , wherein, in the easy-entry position, a first means cooperates in a locking manner with a second means, wherein one of the means is assigned to the backrest and the other of the means is assigned to the seat part, and the means move relative to one another after the limit force has been overcome and while the backrest is being pivoted.

3 . The vehicle seat as claimed in claim 2 , wherein the first means is embodied as a rocker having a first arm and a second arm, the second means is a slotted guide, and one of the arms cooperates with the slotted guide.

4 . The vehicle seat as claimed in claim 3 , wherein a contact element is attached to one of the arms and cooperates with the slotted guide.

5 . The vehicle seat as claimed in claim 3 , wherein a roller is mounted on one of the arms and cooperates with the slotted guide.

6 . The vehicle seat as claimed in claim 3 , wherein the Bowden cable unit is fastened on one side to the other of the arms and on the other side to the seat rail locking device.

7 . The vehicle seat as claimed in claim 3 , wherein the rocker is fastened rotatably to a fitting lower part of the seat part.

8 . The vehicle seat as claimed in claim 3 , wherein the slotted guide is connected firmly to the backrest.

9 . The vehicle seat as claimed in claim 3 , wherein the slotted guide has a first slotted guide portion which is assigned to the use position, and a second slotted guide portion which prevents the backrest from pivoting back out of the easy-entry position in the direction of the use position by cooperating with the rocker, as long as the limit force has not been overcome.

10 . The vehicle seat as claimed in claim 9 , wherein the second slotted guide portion projects beyond the first slotted guide portion in the radial direction.

11 . The vehicle seat as claimed in claim 9 , wherein the first slotted guide portion extends in the form of a circular arc about the pivot axis.

12 . The vehicle seat as claimed in claim 1 , wherein the Bowden cable unit comprises the compensation spring unit, a first cable pull and a second cable pull, wherein the compensation spring unit has a spring which is arranged between the first cable pull and the second cable pull with regard to an operative connection.

13 . The vehicle seat as claimed in claim 12 , wherein the first cable pull, the spring and the second cable pull are connected in series.

14 . The vehicle seat as claimed in claim 12 , wherein the spring in the compensation spring unit is extended when the limit force is exceeded, such that a distance between one end of the first cable pull and one end of the second cable pull is extended.

15 . The vehicle seat as claimed in claim 12 , wherein the spring in the compensation spring unit is compressed when the limit force is exceeded, such that a distance between one end of the first cable pull and one end of the second cable pull is extended.

Assignees

• Johnson Controls Components Gmbh & Co Kg

Inventors

• Pluta Wolfgang
• Wolf Christian
• Dill Thomas
• Christoffel Thomas

Classifications

• F16C2326/08

  Vehicle seats, e.g. in linear movable seats · CPC title

• B60N2/0881

  Activation of the latches by the control mechanism · CPC title

• B60N2/12 Primary

  slidable and tiltable · CPC title

• F16C1/22

  Adjusting; Compensating length · CPC title