Backrest frame for a vehicle seat

Patent metadata

Field	Value
Publication number	US-10137812-B2
Application number	US-201113289660-A
Country	US
Kind code	B2
Filing date	Nov 4, 2011
Priority date	May 8, 2009
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

The invention relates to a seat-back frame for a vehicle seat, which seat-back frame has a frame region extending transversely and two frame regions extending vertically and is of a U-shaped form. The object to provide a seat-back frame of the generic kind which has a minimum of components and at the same time allows a seat-back frame for belt-integrated vehicle seats to be provided easily is met in that there is provided a first half-shell made of a metal, which first half-shell forms a sub-region of each of the vertically extending frame regions of the seat-back frame and forms a sub-region of the transversely extending frame region of the seat-back frame, and there is provided a second sheet-metal half-shell which is connected to the first half-shell by bonding and which reinforces at least the transversely extending frame region of the seat-back frame.

First claim

The invention claimed is:

1. A Seat-back frame for a vehicle seat, comprising:
a transversely extending frame region;
two vertically extending frame regions extending vertically, such that the seat-back is of a U-shaped form;
wherein a first and a second profile are provided which form respective ones of the vertically extending frame regions and wherein there is provided a deep-drawn sheet-metal part which forms the transversely extending frame region, the deep-drawn sheet-metal part having flanges for connecting on the first and second profiles by bonding and at least one of the first and second profiles is a hollow profile which is formed from a single sheet as a flangeless hollow profile such that at least one part of the first and second profiles formed from the single sheet has a closed hollow profile by joining opposed end regions of the single sheet, wherein the closed hollow profile has varying cross-sections in an axial direction of said closed hollow profile,
wherein the varying cross-sections transition from a hollow, rectangular cross-section proximate to the transversely extending frame region to a hollow, I-shaped cross-section distal from the transversely extending frame region.

2. The seat-back frame according to claim 1 , wherein the seat-back frame is intended for a belt-integrated vehicle seat.

3. The seat-back frame according to claim 1 , wherein the deep-drawn sheet-metal part and/or at least one of the profiles is produced from a tailored blank.

4. The seat-back frame according to claim 1 , wherein the varying cross-sections increase in perimeter going from a first point proximate to the transversely extending frame region to a second point distal from the transversely extending frame region.

5. The seat-back frame according to claim 1 , wherein the other of the first and second profiles is an open profile.

Assignees

• Matthey Cristina
• Flehmig Thomas
• Ulrichs Andreas
• Thyssenkrupp Steel Europe Ag

Inventors

• Matthey Cristina
• Flehmig Thomas
• Ulrichs Andreas

Classifications

• B60N2/682 Primary

  Joining means · CPC title

• B60N2/688

  Particular seat belt attachment and guiding · CPC title