# US 6,296,291 B1 · Reinforced vehicle seat back

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- Number: US 6,296,291 B1
- Document ID: US6296291B1
- Status: Granted
- Kind: B1
- Application number: 09/672,280
- Filed: 2000-09-28
- Granted: 2001-10-02
- Earliest claimed: 2000-09-28
- Assignees: DaimlerChrysler AG
- Inventors: Jere R. Lansinger
- Web page: https://patentgrep.com/patent/US6296291B1

## CPC

- B60N 2/686: {Panel like structures}
- B60N 2/4249: {fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash}
- B60N 2/688: {Particular seat belt attachment and guiding}
- B60N 2205/35: Seat, bench or back-rests being split laterally in two or more parts
- B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR

## Abstract

A vehicle seat back panel can be reinforced against transverse buckling forces by training a high tensile strength web, or strip, back and forth along one face of the panel. The flexible strip is anchored to high strength brackets located along the margins of the panel, so that the strip absorbs most of the buckling loads imposed on the panel in pure tension.

## Claims

### Claim 1

An automotive vehicle having a floor and a rear seat mounted on said floor, the combination comprising:
a normally upright back structure for said rear seat:
said back structure comprising a panel, and support means hingedly connecting said panel to the vehicle floor, whereby said panel is swingable between an upright position and a prone position; said panel having an upper edge and a lower edge; and
means for reinforcing said panel against buckling in a forward direction; said reinforcing means comprising a flexible strip means, a first strip anchoring means on said panel approximate to the panel upper edge, and a second strip anchoring means carried by said panel support means below the panel lower edge;
said flexible strip means extending along one face of said panel between said first and second anchoring means to resist panel-buckling forces in the forward direction.

### Claim 2 (depends on 1)

The combination of claim 1, wherein said panel support means comprises a horizontal rail extending along the vehicle floor below the panel lower edge; said second strip anchoring means comprises a plurality of strip anchorage brackets secured to said rail at spaced points therealong.

### Claim 3 (depends on 2)

The combination of claim 2, wherein said first strip anchoring means comprises a single strip anchorage plate secured to said panel proximate to the panel upper edge.

### Claim 4 (depends on 3)

The combination of claim 3, wherein said flexible strip means extends from one of said strip anchorage brackets upwardly to said strip anchorage plate and then diagonally downwardly to another of said strip anchorage brackets.

### Claim 5 (depends on 4)

The combination of claim 4, wherein said strip anchorage plate has a strip-accommodation slot therein; said strip means extending freely through said slot, whereby said strip means is slidably connected to said anchorage plate.

### Claim 6 (depends on 1)

The combination of claim 1, wherein said strip means is located on a front face of said panel.

### Claim 7 (depends on 1)

The combination of claim 1, wherein said strip means is movably related to said one face of the panel, whereby essentially the entire length of the strip means can stretch in response to panel-buckling forces.

### Claim 8 (depends on 1)

The combination of claim 1, wherein said second strip anchoring means comprises two strip anchorage brackets located below the panel lower edge at spaced points therealong; said first strip anchoring means comprising a strip anchorage plate secured to said panel proximate to the panel upper edge; said strip anchorage plate having a strip-accommodation slot spaced from said one panel face; said strip means comprising a single flexible strip extending from one of said strip anchorage brackets upwardly through said strip-accommodation slot and then diagonally downward to the other strip anchorage bracket; said single flexible strip being slidably related to the slot in the strip anchorage plate, whereby essentially the entire length of said single flexible strip can stretch in response to panel-buckling forces.