Vehicle seat

Patent metadata

Field	Value
Publication number	US-10189385-B2
Application number	US-201514878252-A
Country	US
Kind code	B2
Filing date	Oct 8, 2015
Priority date	Oct 8, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A vehicle seat includes a seat part for providing a seat surface for a seat occupant, the seat part including two side parts 21 between which a cross tube 5, 6 extends along a pivot axis, and an adjustment mechanism including a plurality of rockers 31 which are pivotably coupled to the seat part. The cross tube 5, 6 is divided into a long tube element 5 and a short tube element 6. The long tube element 5 extends between the side parts 21 of the seat part and is inserted into openings 210 of the side parts 21. The short tube element 6 is connected in a torsionally locked manner both to a first rocker 31 and to the long tube element 5.

First claim

The invention claimed is:

1. A vehicle seat comprising:
a seat part having a seat surface for a seat occupant, said seat part comprising two side parts between which a cross tube extends along a pivot axis; and
an adjustment mechanism comprising a plurality of rockers which are pivotably coupled to said seat part,
said cross tube being divided into a long tube element and at least a first short tube element,
said long tube element having a tube section extending along a longitudinal direction between said two side parts of said seat part and being inserted into first and second openings of said side parts,
said first short tube element having a tube section extending along a longitudinal direction and two bead sections formed on the short tube element at a certain axial distance to each other and radially protruding with respect to the tube section,
said first short tube element being connected in a torsionally locked manner both to a first end of said long tube element and to a first rocker of the plurality of rockers,
said first rocker having a planar section and a first opening formed in the planar section, wherein the first short tube element extends through the first opening with the bead sections abutting the planar section of the first rocker for axially fixing the first short tube element to the first rocker, which is arranged between said two bead sections, and
a front end of said first short tube element, which faces a first side part of said two side parts and abuts said first side part, forming a spacer between said first side part and said first rocker.

2. The vehicle seat according to claim 1 , wherein said long tube element is connected to the first and a second short tube element at either end of said long tube element, said first and second short tube element being connected to the first and a second rocker and to said long tube element in a torsionally locked manner.

3. The vehicle seat according to claim 1 , wherein the adjustment mechanism comprises a guide rail arrangement for a longitudinally adjustable arrangement of the vehicle seat and a height adjustment mechanism comprising four rockers of the plurality of rockers which are pivotably coupled to each end of said two side parts and said guide rail arrangement, which connect said seat part to said guide rail arrangement so as to be adjustable in height, said four rockers being pivotably mounted on the guide rail arrangement via a holding element.

4. The vehicle seat according to claim 1 or 3 , wherein said adjustment mechanism comprises a manual or electromotive drive unit for raising or lowering the seat part relative to the guide rail arrangement, an output pinion of said drive unit engaging a tooth segment having a bore, at both sides of which two foldings are formed on the long tube element radially protruding with respect to the long tube element, which two foldings press-fit the tooth segment to the long tube element for pivoting the first rocker.

5. The vehicle seat according to claim 1 , wherein the outer diameter of at least the first end of said long tube element is smaller than the inner diameter of said first short tube element, said first end of said long tube element being inserted into said first short tube element.

6. The vehicle seat according to claim 5 , wherein the interfacing parts of said long tube element and said short tube element have a shape other than circular.

7. The vehicle seat according to claim 5 , wherein the interfacing parts of said long tube element and said first short tube element are secured together by laser welding, screwing or riveting.

8. The vehicle seat according to claim 5 , wherein the interfacing parts of said long tube element and said first short tube element are press-fitted.

Assignees

• Brose Fahrzeugteile

Inventors

• Ferenc Anthony

Classifications

• B60N2/682 Primary

  Joining means · CPC title

• B60N2/165

  Gear wheel driven mechanism · CPC title

• B60N2/1615

  Parallelogram-like structure · CPC title