Assembly apparatus and process for a chair back

Details Assembly apparatus and process for a chair back Assembly apparatus and process for a chair back

2006-06-08

2008-12-09

Cozart, Jermie E (Department: 3726)

Metal working

Upholstered article making

Method

C029S091500, C029S448000, C029S450000, C029S243500, C029S281100, C297S451100, C297S452100, C297S452130

Reexamination Certificate

active

07461442

ABSTRACT:
An office chair is provided having a contoured back assembly comprising a back frame and a suspension fabric. The fabric is attached to the back frame through a spline wherein the back frame has a three-dimensional contoured shape formed by overlapped frame rings with the fabric being joined thereto by a spline. The fabric is secured to the frame by a machine wherein the fabric is first stretched from the outer edge of the fabric and then is clamped to a frame surface in the pre-tensioned or pre-streched condition. The fabric edges are allowed to hang loose and then fixed in the frame by a spline. Once secured, the fabric is unclamped from the frame.

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