Knitted textile fabric with integrated fluid-containing or -conveying tubular segments

• US 5,996,378 A
• Filed: 05/20/1998
• Issued: 12/07/1999
• Est. Priority Date: 05/20/1998
• Status: Expired due to Fees

• Current Assignee: GFD Fabrics Incorporated
• Original Assignee: Guilford Mills Incorporated (Lear Corporation)
• Inventors: McCartney, Phillip D.
• Primary Examiner(s): WORRELL JR, LARRY D
• Application Number:
  US09/082,019
• Time in Patent Office: 566 Days
• Field of Search: 66/169 R, 66/170, 66/171, 66/190, 66/192, 66/195, 66/202, 2/458, 2/DIG. 1, 2/DIG. 3, 442/194, 442/309
• US Class Current: 66/192
• CPC Class Codes: D04B 21/20 specially adapted for knitting articles of particular configuration
• CPC Class Codes: D10B 2403/0243 enhancing functional properties
• CPC Class Codes: D10B 2505/08 Upholstery, mattresses
• CPC Class Codes: Y10T 442/431 Cross-sectional configuration of strand material is specified

Abstract

A knitted textile fabric containing integrated fluid-carrying tubes is fabricated of yarn formed into interlooped stitches arranged in longitudinal wales and transverse courses throughout the fabric structure, with plural elongate hollow tubular segments integrated with the yarn into the fabric structure and spaced essentially in parallel relation to one another. The fabric structure is preferably warp knitted, one embodiment of which has the tubular segments extending longitudinally in selected spaced wales and another embodiment of which has the tubular segments extending coursewise in selected spaced courses.

Claims

1. A knitted textile fabric comprising yarn formed into interlooped stitches defining a fabric structure having a longitudinal extent and a transverse extent wherein the stitches are aligned longitudinally in a plurality of essentially parallel wales and transversely in a plurality of essentially parallel courses perpendicular to the wales, and a plurality of elongate hollow tubular segments integrated with the yarn into the fabric structure in spaced essentially parallel relation to one another, each tubular segment defining a fluid passage therein and having a rigidity sufficient to maintain a substantially constant cross-sectional dimension thereof resisting deformation such that constriction of the fluid passage is avoided.

2. A knitted textile fabric according to claim 1, wherein each tubular segment is open-ended for the passage of fluid therethrough.

3. A knitted textile fabric according to claim 2, wherein the tubular segments extend coursewise of the fabric structure.

4. A knitted textile fabric according to claim 2, wherein the tubular segments extend walewise of the fabric structure.

5. A knitted textile fabric according to claim 2, wherein the fabric structure is a warp knitted structure.

6. A knitted textile fabric according to claim 5, wherein the warp knitted structure is a dimensionally stable knitted structure.

7. A knitted textile fabric according to claim 6, wherein the warp knitted structure is an at least two-bar knitted structure comprising two sets of interlooped warp yarns.

8. A knitted textile fabric according to claim 7, wherein one set of the warp yarns are formed in a walewise chain stitch pattern and the other set of the warp yarns are formed in a coursewise inlay pattern.

9. A knitted textile fabric according to claim 8, wherein said one set of the warp yarns are formed in a 0-1, 1-0 chain stitch pattern and said other set of the warp yarns are formed in a 4-4, 0-0 inlay pattern.

10. A knitted textile fabric according to claim 5, wherein the stitches are omitted from selected spaced wales and the tubular segments are disposed longitudinally within the selected spaced wales.

11. A knitted textile fabric according to claim 5, wherein the tubular segments are weft inserted to extend coursewise within the stitches of selected spaced courses.