Pressure-relieving flexural load-bearing strap and related systems and methods
Textile assemblies may be incorporated into a textile strap and include a stretch textile substrate and a patterned textile laminate. The textile substrate has a width extending from a first edge to a second edge. The patterned textile laminate is non-stretch or low-stretch, and coupled to the stretch textile substrate. The patterned textile laminate has a plurality of holes formed therethrough, configured to enhance breathability of the textile assembly. A span of the patterned textile laminate has a plurality of gaps formed therethrough to create a gradient of flexibility and compliance within the span of the patterned textile laminate, such that the stretch of the textile assembly varies along a continuum across the width of the textile assembly. Straps and/or harnesses of various uses may incorporate such textile assemblies, including harnesses for supporting prosthetic limbs, climbing and safety harnesses, and military or policy duty belts.
1. A textile assembly configured to be incorporated into a textile strap, the textile assembly comprising:
a stretch textile substrate having a width extending from a first edge to a second edge; and
a patterned textile laminate that is non-stretch or low-stretch, wherein the patterned textile laminate is coupled to the stretch textile substrate, wherein the patterned textile laminate comprises a plurality of holes formed therethrough, the plurality of holes being configured to enhance breathability of the textile assembly, wherein a span of the patterned textile laminate comprises a plurality of gaps formed therethrough, each respective gap of the plurality of gaps being between a respective pair of adjacent tabs, and wherein the plurality of gaps create a gradient of flexibility and compliance within the span of the patterned textile laminate.
2. The textile assembly according to claim 1 , comprising axial contours of stretch that vary between a maximum of stretch dictated by the stretch textile substrate, and a minimum of stretch dictated by the patterned textile laminate.
3. The textile assembly according to claim 1 , wherein the plurality of gaps cause a degree of elasticity of the textile assembly in a direction substantially perpendicular to the width of the stretch textile substrate to increase along the width towards the first edge and to decrease along the width towards the second edge.
4. The textile assembly according to claim 1 , further comprising stitching that repeatedly passes through or across the textile assembly, wherein the stitching is configured to couple the patterned textile laminate to the stretch textile substrate, and wherein the stitching is configured to limit, prevent, and/or reduce stretch along a plurality of contour lines.
5. The textile assembly according to claim 1 , wherein each gaps of the plurality of gaps narrows as it extends towards the second edge from the first edge.
6. The textile assembly according to claim 1 , wherein a respective far end of the patterned textile laminate is spaced apart from the first edge within the span of the patterned textile laminate, and wherein a respective far end of each respective gap of the plurality of gaps is spaced apart from the second edge.
7. The textile assembly according to claim 1 , wherein the plurality of gaps comprises a first row of gaps extending towards the first edge from a first row of holes of the plurality of holes.
8. The textile assembly according to claim 1 , wherein each respective tab of each respective pair of adjacent tabs comprises opposing angled sides, and where each respective adjacent pair of tabs is arranged such that a respective distance between a respective pair of adjacent angled sides increases closer to the first edge of the stretch textile substrate and decreases closer to the second edge of the stretch textile substrate.
9. The textile assembly according to claim 1 , wherein the textile assembly is breathable.
10. The textile assembly according to claim 1 , wherein the stretch textile substrate comprises a first side and a second side opposite the first side, wherein the first side is configured to face away from a wearer's body when the textile assembly is worn, wherein the second side faces the wearer's body when the textile assembly is worn, and wherein the second side faces and/or contacts a breathable stretch glue layer of the textile assembly.
11. The textile assembly according to claim 1 , wherein the patterned textile laminate comprises a first layer of PVC-coated nylon and a second layer of PVC-coated nylon, and wherein the first layer and the second layer are arranged with respect to one another such that a first PVC side of the first layer faces a second PVC side of the second layer, wherein the first layer and the second layer are bonded together.
12. The textile assembly according to claim 1 , wherein the textile assembly is configured to conform to a body of a wearer of the textile assembly when the textile assembly is worn.
13. The textile strap comprising the textile assembly according to claim 1 , and further comprising an outer shell, wherein the textile assembly is positioned between two opposite layers of the outer shell such that the outer shell surrounds and encompasses the textile assembly within a channel of the outer shell.
14. The textile strap according to claim 13 , wherein the outer shell comprises elastic edge binding along the first edge of the stretch textile substrate.
15. The textile strap according to claim 13 , wherein the outer shell comprises a four-way stretch material, and wherein the outer shell is water vapor permeable.
16. A harness configured to secure a prosthetic device for a user comprising the textile strap according to claim 15 .
17. A duty belt comprising the textile strap according to claim 15 .
18. A method of making a textile assembly, the method comprising:
forming a plurality of holes in a patterned textile laminate, wherein the patterned textile laminate is non-stretch or low-stretch, wherein the plurality of holes are configured to enhance breathability of the textile assembly;
forming a plurality of gaps within a length of the patterned textile laminate, wherein each respective gap of the plurality of gaps is positioned between a respective adjacent pair of tabs, and wherein the plurality of gaps create a gradient of flexibility and compliance within the length of the patterned textile laminate; and
coupling a stretch textile substrate to the patterned textile laminate, wherein the stretch textile substrate has a width extending from a first edge to a second edge, and wherein the plurality of gaps are spaced apart from the first edge and the second edge.
19. The method according to claim 18 , further comprising:
determining a desired degree of elasticity or stretch along the first edge of the stretch textile substrate; and
determining a number, an orientation, and a placement of the plurality of gaps to create the desired degree of elasticity or stretch along the first edge of the stretch textile substrate.