Metal Frame Attachment Information

Metal Rollform
Purpose: This attachment is welded to the metal frame and retains the plastic extrusion. Universal design accommodates tubing dimensions of .75" to 1.5" O.D.

Standard length - 24"
Part number - DA-24

Plastic Extrusion
Purpose: The Dymetrol® suspension is sewn to the extrusion and is in turn clipped onto the rollform.

Standard length - 24"
Part number - DA-24

Available from:
Royersford Spring Co.
98 Main Street
Royersford, PA 19468
(610) 948-4440
Fax (610) 948-4511
Contact: Mr. Ted Claghorn

Attachment Procedures
Spot weld or tack the rollform to the outside radius seat frame. (Fig. #1)

Using a high quality monofilament thread (Belding, Nymo, size "D" or equivalent), sew the Dymetrol® suspension separated by 3/4" wide strips of decking type of material to the plastic extrusion using a double sew line. Machine setting should allow for 7-8 stitches per inch. (Fig. #2)

Prestraining the Dymetrol® or Entransit is accomplished by Book Stretching (two or more seats per application). All grades of Dymetrol must be prestrained a minimum of 5%. Entransit must be prestrained a minimum of 7% Determine Dymetrol® width and extrusion placement. (Fig. #3) Attach outer extrusions to the outboard rollforms. Using the frames themselves, separated by a spacer cam in place. (Fig. #4) depress the inclined frame stretching the fabric and aligning the extrusions adjacent to the inboard rollform. Cutting the fabric between the extrusions will engage the extrusions onto the rollform.