Combination Lumbar-Bolster System

Abstract

A combination lumbar bolster system for attachment to a vehicle seat frame comprises a lumbar support having a flat position and a deployed position, wherein the deployed position is forward of the flat position; a pair of lateral bolsters each having a resting position and an extended position, wherein the extended position is further from the seat frame than the resting position; at least one traction cable operably attached to at least one of the lumbar support and the lateral bolsters; and at least one spring. The traction cable moves the lumbar support between the flat position and the deployed position and the lateral bolsters between the resting positions and the extended positions such that the movements of the lumbar support and the bolsters is coordinated, and the spring opposes the movement of the traction cable.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:

FIG. 1 shows an example of a pivot embodiment of a combination lumbar-bolster system;

FIG. 2 shows a second example of a pivot embodiment of a combination lumbar-bolster system.

FIG. 3 shows an example of a ramping embodiment of a combination lumbar-bolster system; and

FIG. 4 shows an example of a spring embodiment of a combination lumbar-bolster system.

Claims

1. A combination lumbar bolster system for attachment to a vehicle seat frame, comprising: a lumbar support having a flat position and a deployed position, wherein the deployed position is forward of the flat position;a pair of lateral bolsters each having a resting position and an extended position, wherein the extended position is further from the seat frame than the resting position;at least one traction cable operably attached to at least one of the lumbar support and the lateral bolsters;at least one spring;wherein the traction cable moves the lumbar support between the flat position and the deployed position and the lateral bolsters between the resting positions and the extended positions such that the movements of the lumbar support and the bolsters is coordinated;wherein the at least one spring opposes the movement of the traction cable.

2. The combination lumbar bolster system of claim 1 wherein the lumbar support and lateral bolsters are made of a single piece of material.

3. The combination lumbar bolster system of claim 2 wherein the lumbar support and lateral bolsters are hingedly attached to one another by at least one extension piece.

4. The combination lumbar bolster system of claim 1 further comprising a support wire, wherein the support wire attaches the lumbar support and bolsters to said seat frame.