Assembly for attaching fabric to metal and method of fabrication therefor
View Patent ↗A product having a metal-fabric joint includes forming a fabric anchoring component by casting a low melting point yet high compressive strength material into a cavity in a metal component. The product includes (a) a metal housing including an interior entrance, at least first and second opposed interior walls, and an interior end opposite the interior entrance, the at least first and second opposed interior walls and the interior end defining an interior cavity; (b) a fabric; (c) a fabric anchor assembly; and (d) a castable material disposed in the interior cavity so as to envelop the fabric and the fabric anchor assembly. A method of fabricating the product includes the steps of (a) anchoring the fabric with the fabric anchor assembly; (b) inserting the anchored fabric in the interior cavity; (c) providing the interior cavity with the castable material so as to envelop the anchored fabric; and (d) solidifying the castable material to a cast material so as to form the product. Advantages associated with the product include not only its simplicity, compact size, and light weight, but the requisite mechanical integrity of the resulting attachment. In addition, by using a low melting point material for the castable material in some embodiments, the product can be easily disassembled for repair or replacement of components by simply melting the castable material out of the interior cavity.
1. A product comprising a metal-fabric joint, said joint comprising:
(a) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining an interior cavity;
(b) a fabric comprising a first fabric portion and a second fabric portion;
(c) a fabric anchor assembly comprising an anchor and a means for attaching said fabric to said anchor, such that said fabric is at least partially disposed inside said interior cavity, and said first fabric portion is folded over said anchor; and
(d) a low melting point, high compressive strength, castable material disposed in said interior cavity so as to envelop said fabric at least partially disposed inside said interior cavity and said fabric anchor assembly, wherein said castable material is selected from the group consisting of a thermoplastic polymer and a low melting point metal alloy.
2. A product comprising a metal-fabric joint, said joint comprising:
(a) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining a cavity;
(b) a plurality of fabric layers;
(c) a plurality of fabric anchor assemblies corresponding in number to said plurality of fabric layers, wherein each of said plurality of fabric layers have a dedicated fabric anchor assembly, and at least one of said plurality of fabric layers is folded over its dedicated fabric anchor assembly; and
(d) a castable material disposed in said interior cavity so as to envelop said plurality of fabric layers and said plurality of fabric anchor assemblies.
3. A product comprising a metal-fabric joints, said joint comprising:
(a) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining a cavity;
(b) a fabric;
(c) a fabric anchor assembly;
(d) a thermoset material disposed in said interior cavity so as to envelop said fabric and said fabric anchor assembly.
4. The product of claim 3 , wherein said thermoset comprises at least one member selected from the group consisting of hot melt adhesives and epoxies.
5. A product comprising a metal-fabric joint, said joint comprising:
(a) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining an interior cavity, wherein said interior end of the metal housing is wider than said interior entrance of the metal housing;
(b) a fabric;
(c) a fabric anchor assembly comprising a portion of said fabric and an anchor, said anchor assembly being located inside said interior cavity, such that said portion of said fabric is positioned inside said interior cavity; and
(d) a castable material disposed in said interior cavity so as to envelop said portion of said fabric and said fabric anchor assembly, wherein said castable material is selected from the group consisting of a thermoset material and a low melting point metal alloy.
6. The product of claim 5 , wherein the castable material is a low melting point metal alloy.
7. The product of claim 5 , further comprising a rigidized thermoplastic adhesive on the interior walls of the housing.
8. The product of claim 5 , further comprising a flexible sealant between the castable material and interior entrance.
9. The product of claim 5 , wherein the fabric comprises a bladder layer, contiguous with the fabric.
10. The product of claim 5 , wherein the fabric anchor assembly comprises at least one selected from the group consisting of a monofilament, a cable and a wire.
11. The product of claim 5 , wherein a first portion of the fabric is folded over the anchor, and the folded first fabric portion is folded back against a second fabric portion and, the folded first fabric portion is attached to the second fabric portion.
12. The product of claim 5 , wherein the fabric comprises a plurality of fabric layers and the anchor comprises a plurality of anchor members, wherein the number of anchor members is equal to the number of fabric layers.
13. A metal-fabric joint comprising (i) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining an interior cavity; (ii) a fabric comprising a first fabric portion and a second fabric portion; (iii) a fabric anchor assembly comprising an anchor and a means for attaching said fabric to said anchor; and (iv) a castable material disposed in said interior cavity, wherein said castable material is selected from the group consisting of a thermoplastic polymer and a low melting point metal alloy,
formed by a method comprising the steps of:
(a) folding said first fabric portion over said anchor, and folding said folded first fabric portion back against said second fabric portion;
(b) attaching said folded first fabric portion to said second fabric portion with said means for attaching so as to provide an anchored fabric;
(c) inserting said anchored fabric in said interior cavity, whereby said first fabric portion is positioned inside said interior cavity;
(d) providing said interior cavity with said castable material so as to envelop said anchored fabric; and
(e) solidifying said castable material to form a cast material so as to provide said metal-fabric joint.
14. A metal-fabric joint comprising (i) a metal housing comprising an interior entrance, at least first and second opposed interior walls, and an interior end opposite said interior entrance, said at least first and second opposed interior walls and said interior end defining an interior cavity; wherein the interior end of the metal housing is wider than the interior entrance of the metal housing; (ii) a fabric comprising a first fabric portion and a second fabric portion; (iii) a fabric anchor assembly comprising an anchor and a means for attaching said fabric to said anchor; and (iv) a castable material disposed in said interior cavity,
formed by a method comprising the steps of:
(a) folding said first fabric portion over said anchor, and folding said folded first fabric portion back against said second fabric portion;
(b) attaching said folded first fabric portion to said second fabric portion with said means for attaching so as to provide an anchored fabric;
(c) inserting said anchored fabric in said interior cavity, whereby said first fabric portion is positioned inside said interior cavity;
(d) providing said interior cavity with said castable material so as to envelop said anchored fabric; and
(e) solidifying said castable material to a cast material so as to provide said metal-fabric joint.