METHOD FOR ATTACHING CUSHION TO RIGID BASE

• US 3,747,178 A
• Filed: 02/14/1972
• Issued: 07/24/1973
• Est. Priority Date: 02/14/1972
• Status: Expired due to Term

• Current Assignee: Arthur J. Harder Jr
• Original Assignee: Arthur J. Harder Jr
• Inventors: Harder, Arthur J. Jr.
• Primary Examiner(s): Juhasz, Andrew R.
• Assistant Examiner(s): Gilden, Leon
• Application Number:
  US05/225,921
• Time in Patent Office: 526 Days
• Field of Search: 29/91.1 5/353.1,353.5,353.6 297/218
• US Class Current: 29/91.1
• CPC Class Codes: B60N 2/70 Upholstery springs ; Upholstery
• CPC Class Codes: B68G 7/00 Making upholstery manufacturing upholstered panels B68G13/00 ; from plastics B29D99/0092; sewing-machines D05B
• CPC Class Codes: Y10T 29/481 Method

Abstract

The method of manufacturing a cushioned support, such as a seat cushion having a fabric cover anchored to a rigid base member. The method includes inserting the seam portion at the peripheral edge of the fabric cover into a channel around the periphery of the rigid base member, and then inserting a thick welt inside said seam portion so that the welt can not be withdrawn from said channel.

Claims

1. The method of manufacturing a cushioned support having a rigid base member, a resilient cushion portion and an open, boxlike cover having a peripheral edge portion, said method comprising the steps of:

fabricating a tunnel around said peripheral edge portion of said cover with said tunnel having a pair of open ends;

providing elongated, flexible pilot means having a pair of opposite ends;

attaching a welt to one end of said pilot means;

positioning said pilot means in said tunnel with at least the other end of said pilot means extending through an open end of said tunnel;

fabricating rigid cover-retaining means around the periphery of said rigid base member so that said retaining means and said periphery define an elongated, tunnel-receiving portion having a discontinuation therein and an open mouth extending around said periphery;

performing said fabricating step so that said mouth of said tunnel-receiving portion is large enough to receive said tunnel with said pilot means therein and smaLl enough to prevent removal of said tunnel with said welt therein;

aligning said open ends of said tunnel with said discontinuation in said tunnel-receiving portion;

introducing substantially all of said tunnel, with said flexible pilot means therein, into said tunnel-receiving portion, through the mouth thereof, continuously around the periphery of said rigid base, and positioning at least said other end of said pilot means at said discontinuation;

drawing said one end of said pilot means through said tunnel by pulling on the other end until the opposite ends of said welt each project from a respective one of said open ends of said tunnel and of said tunnel-receiving portion at said discontinuation;

disengaging said pilot means from said welt; and

securing said welt to prevent its withdrawal from said tunnel through said open ends thereof.

2. The method of manufacturing a cushioned support according to claim 1 wherein said step of fabricating the retaining means comprises:

providing a rigid cover-retaining strip having an arcuate cross-section for mounting around the periphery of said rigid base member; and

, attaching said cover-retaining strip to said periphery of said base member so that said attached strip and said periphery define an elongated, tunnel-receiving portion having an open mouth extending around said periphery with a discontinuation defined by opposite ends of said strip.

3. The method of manufacturing a cushioned support according to claim 1 wherein said tunnel fabricating step comprises:

folding said peripheral edge portion, around the entire periphery of the cover, to define a tunnel; and

securing said tunnel closed by attaching the folded edge portion to the cover.

4. The method of manufacturing a cushioned support according to claim 3 and further including:

positioning said pilot means around substantially all of said peripheral edge portion of the cover; and

performing said folding step so that said end portion is brought across said pilot means whereby said pilot means is enclosed within said tunnel after said attaching step.

5. The method of manufacturing a cushioned support according to claim 1 and further including the step of:

providing welt-securing means on said pilot means for attaching said welt to said pilot means.

6. The method of manufacturing a cushioned support according to claim 1 wherein said step of providing pilot means comprises:

providing pilot means which rigidifies said tunnel when positioned therein to facilitate insertion of the tunnel into said tunnel-receiving portion during said introducing step.