Method for assembling a frame assembly for a chair
First Claim
1. A method for assembling a frame assembly for a chair comprising the steps of:
- providing a first frame body having an elongate shape defined by a first peripheral frame edge, and inside and outside faces;
providing a second frame body having an elongate shape defined by a second peripheral frame edge, and inside and outside faces, wherein said first and second frame bodies when assembled define a frame having a frame opening;
positioning a fabric in a stretching machine and stretching said fabric along transverse first and second axes to a selected tension;
positioning said first frame body adjacent a face of said stretched fabric wherein said stretched fabric overlies said first frame body;
fastening a peripheral fabric edge of said stretched fabric to said adjacent first peripheral frame edge to define a frame sub-assembly;
positioning said second frame body with said inside face thereof disposing in opposed facing relation with said inside face of said first frame body; and
fixing said first and second frame bodies together to fixedly secure said peripheral fabric edge between said opposing inside faces of said first and second frame bodies with said stretched fabric overlying said frame opening to define said frame assembly.
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Accused Products
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 about its periphery wherein the back frame has a three-dimensional contoured shape formed by overlapped frame rings with the fabric being joined thereto. 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 by a front frame section in the pre-tensioned or pre-streched condition. The fabric edges are allowed to hang loose and then fixed in the front frame section. Once secured, the fabric is unclamped from the front frame section, and then this sub-assembly is affixed to the rear frame ring to complete the assembly of the back frame.
46 Citations
20 Claims
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1. A method for assembling a frame assembly for a chair comprising the steps of:
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providing a first frame body having an elongate shape defined by a first peripheral frame edge, and inside and outside faces; providing a second frame body having an elongate shape defined by a second peripheral frame edge, and inside and outside faces, wherein said first and second frame bodies when assembled define a frame having a frame opening; positioning a fabric in a stretching machine and stretching said fabric along transverse first and second axes to a selected tension; positioning said first frame body adjacent a face of said stretched fabric wherein said stretched fabric overlies said first frame body; fastening a peripheral fabric edge of said stretched fabric to said adjacent first peripheral frame edge to define a frame sub-assembly; positioning said second frame body with said inside face thereof disposing in opposed facing relation with said inside face of said first frame body; and fixing said first and second frame bodies together to fixedly secure said peripheral fabric edge between said opposing inside faces of said first and second frame bodies with said stretched fabric overlying said frame opening to define said frame assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for assembling a frame assembly for a chair comprising the steps of:
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providing a first frame ring having a ring-like shape defined by a first peripheral frame edge, and inside and outside faces; providing a second frame ring having a ring-like shape defined by a second peripheral frame edge, and inside and outside faces, wherein said first and second frame rings when assembled define a frame; positioning a fabric in a stretching machine, gripping a peripheral edge of said fabric and stretching said fabric to a selected tension; positioning said first frame ring adjacent a face of said stretched fabric wherein said stretched fabric overlies said outside face of said first frame ring; wrapping said peripheral fabric edge about said peripheral frame edge of said first frame ring so that said peripheral fabric edge overlies said inside face of said first frame edge adjacent said first peripheral frame edge thereof; fastening said peripheral fabric edge of said stretched fabric to said adjacent first peripheral frame edge to define a frame sub-assembly; positioning said second frame ring with said inside face thereof disposing in opposed facing relation with said inside face of said first frame ring; and fixing said first and second frame rings together to fixedly secure said peripheral fabric edge between said opposing inside faces of said first and second frame rings to define said frame assembly. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for assembling a frame assembly for a chair comprising the steps of:
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providing a first frame ring having a ring-like shape defined by a first peripheral frame edge, and inside and outside faces; providing a second frame ring having a ring-like shape defined by a second peripheral frame edge and inside and outside faces, wherein said first and second frame rings when assembled define a frame; positioning a fabric in a stretching machine, gripping a peripheral edge of said fabric and stretching said fabric to a selected tension; positioning said first frame ring adjacent a face of said stretched fabric wherein said stretched fabric overlies said outside face of said first frame ring; clamping said stretched fabric against said first frame body to maintain said fabric stretched; fastening said peripheral fabric edge of said stretched and clamped fabric to said adjacent first peripheral frame edge to define a frame sub-assembly; positioning said second frame ring with said inside face thereof disposing in opposed facing relation with said inside face of said first frame ring; and fixing said first and second frame rings together to fixedly secure said peripheral fabric edge between said opposing inside faces of said first and second frame rings to define said frame assembly with said peripheral fabric edge sandwiched in fixed relation between opposing inside faces of said first and second frame bodies. - View Dependent Claims (17, 18, 19, 20)
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Specification