초록 ▼

The present application relates to an insulation pack in a wearable article, such as a footwear article. In one example embodiment, the insulation pack includes a perforated air retention and communication layer, an insulating compressible layer, and a reflective layer. In a compressed state, when t

The present application relates to an insulation pack in a wearable article, such as a footwear article. In one example embodiment, the insulation pack includes a perforated air retention and communication layer, an insulating compressible layer, and a reflective layer. In a compressed state, when the wearable article is worn by a wearer, the perforated air retention and communication layer and the insulating compressible layer maintain a lofted air space which is in air communication with an inner body space of the wearable article and acts as an insulating layer. Further, the reflective layer reflects radiated body heat. Thus, the insulation pack may provide a heat retention and insulation system for the wearable article by reducing body heat lost via radiation and conduction.

대표청구항 ▼

1. A layered insulation pack for a footwear article worn on a human body, comprising: a perforated air communication and retention layer;a reflective layer; anda compressible layer interposed between the perforated air communication and retention layer and the reflective layer, the compressible laye

1. A layered insulation pack for a footwear article worn on a human body, comprising: a perforated air communication and retention layer;a reflective layer; anda compressible layer interposed between the perforated air communication and retention layer and the reflective layer, the compressible layer more compressible than the perforated air communication and retention layer,wherein the perforated air communication and retention layer of the insulation pack is adapted to be in air communication with an inner body space of the footwear article, the inner body space is adapted to have a foot of a wearer positioned therein during wear of the footwear article,wherein the compressible layer and the perforated air communication and retention layer comprise a lofted air space to store air which passes into and out of the lofted air space from the inner body space during movement of the wearer. 2. The layered insulation pack of claim 1, wherein an air tight seal is disposed between a ground contacting surface of the footwear article and the insulation pack. 3. The layered insulation pack of claim 2, wherein the insulation pack is disposed within a midsole of a boot, between an insole and an outsole. 4. The layered insulation pack of claim 3, wherein the perforated air communication and retention layer is in face-sharing contact with and adhered to the compressible layer, and the compressible layer is in face-sharing contact with and adhered to the reflective layer, the perforated air communication and retention layer proximate to the insole, the reflective layer proximate to the outsole. 5. The layered insulation pack of claim 1, wherein the insulation pack includes a fabric layer, the fabric layer in face-sharing contact with and adhered to the perforated air communication and retention layer. 6. The layered insulation pack of claim 3, wherein a foam layer is adhered to the outsole, and the foam layer and the outsole form a recess with a lip at a perimeter of the outsole and the midsole, the insulation pack is fitted within the recess, the insulation pack flush with the lip of the foam layer at a hindfoot region of the footwear article, and the insulation pack further flush with the lip of the outsole at a forefoot region of the footwear article. 7. The layered insulation pack of claim 5, wherein the perforated layer includes a plurality of regularly spaced hexagonal perforations, the perforated layer having a first side in face-sharing contact with the fabric layer and a second side in face-sharing contact with the compressible layer. 8. The layered insulation pack of claim 6, wherein each of the plurality of regularly spaced hexagonal perforations has a first diameter at a first side of the perforated layer, and each of the plurality of regularly spaced hexagonal perforation has a second diameter at a second side of the perforated layer, the first diameter greater than the second diameter. 9. The layered insulation pack of claim 6, wherein a wall between each of the plurality of regularly spaced hexagonal perforations has a first width at the first side of the perforation, and a wall between each of the plurality of regularly spaced hexagonal perforations has a second width at the second side of the perforation, the first width less than the second width. 10. The layered insulation pack of claim 2, wherein the insulation pack is in a non-compressed state when not worn by a wearer, and the insulation pack is in a compressed state when worn by the wearer, the compressible layer having a first thickness in the non-compressed state, and the compressible layer having a second thickness in the compressed state, the first thickness greater than the second thickness, the perforated air communication and retention layer having a third thickness in the non-compressed state, and the perforated air communication and retention layer having a fourth thickness in the compressed state, the third thickness greater than the fourth thickness, a difference between the first thickness and the second thickness greater than a difference between the third thickness and the fourth thickness. 11. The layered insulation pack of claim 10, wherein the compressible layer is partially disposed within the plurality of regularly spaced hexagonal perforations in the compressed state. 12. The layered insulation pack of claim 1, wherein the reflective layer is comprised of one of mylar, silver foil, or aluminum foil. 13. The layered insulation pack of claim 1, wherein the perforated layer is comprised of EVA. 14. The layered insulation pack of claim 1, wherein the compressible layer is comprised of one or more of compressed wool and woven wool. 15. A boot comprising: an upper connected to a sole, the upper and an inner surface of the sole forming an inner body space of the boot, the inner body space adapted to have a foot of a wearer positioned therein during wear of the boot, the sole including an outsole, a midsole, and an insole, an outer surface of the outsole being a ground contacting region of the boot, the outsole including a recess wherein the midsole is fitted, the midsole including a foam layer adhered to the outsole, an interface of the outsole and the foam layer forming an air tight seal, the midsole further including an insulation pack, the outsole and the foam layer having a recess wherein the insulation pack is flush with a lip of the recess, the insole disposed in the inner body space and attached to a lining of the upper, insole, midsole, and outsole in a compressed state when worn by the wearer and in a non-compressed state when not worn by the wearer, the insulation pack comprising: a honeycomb perforated layer including a plurality of air pockets within a plurality of hexagonal perforations, the plurality of perforations in air communication with the inner body space, the honeycomb perforated layer having a first durometer;an insulating layer, the insulating layer adhered to and in face-sharing contact with the honeycomb perforated layer, the insulating layer having a network of fibers which are capable of holding air, the network of fibers in air communication with the plurality of hexagonal perforations, the insulating layer having a second durometer, the second durometer less than the first durometer, the insulating layer being more compressed than the honeycomb perforated layer in the compressed state; anda reflective layer, the reflective layer adhered to and in face-sharing contact with the foam layer at a first face of the reflective layer, the reflective layer adhered to and in face-sharing contact with the insulating layer at a second face of the reflective layer,wherein the insulating layer and the honeycomb perforated layer comprise a lofted air space to store air which passes into and out of the lofted air space from the inner body space during movement of the wearer. 16. The midsole of claim 15, wherein the insulation pack further includes a fabric layer, the fabric layer, the first fabric face adhered to and in face-sharing contact with the honeycomb perforated layer at a first face of the fabric layer, a second fabric face in face-sharing contact with the insole at a second face of the fabric layer. 17. The midsole of claim 15, wherein the insulating layer is partially disposed in the plurality of perforations in the compressed state. 18. The midsole of claim 15, wherein the insulating layer has a first thickness in the non-compressed state, and the insulating layer has a second thickness in the compressed state, the first thickness greater than the second thickness, and the honeycomb perforated layer has a third thickness in the non-compressed state, and the honeycomb perforated layer has a fourth thickness in the compressed state, the third thickness greater than the fourth thickness, a difference between the first thickness and the second thickness greater than a difference between the third thickness and the fourth thickness. 19. The midsole of claim 15, wherein the insulating layer is comprised of felt, the honeycomb perforated layer is comprised of EVA, and the reflective layer is comprised of mylar. 20. A footwear article insulation and heat retention system, comprising: an insulation pack disposed on an internal side of an inner body space of the article, the inner body space adapted to have a foot of a wearer positioned therein during wear of the article, relative to a substantially air-tight seal on an external side of the inner body space, the insulation pack comprising,a perforated air communication and retention layer in air communication with the inner body space, the perforated air communication and retention layer including a plurality of hexagonal perforations in air communication with the inner body space,a compressible layer in air communication and face-sharing contact with the perforated air communication and retention layer, the compressible layer more compressible than the perforated air communication and retention layer, the compressible layer comprising a network of fibers which are capable of holding air, the network of fibers in air communication with the plurality of hexagonal perforations, the network of fibers and the perforated air communication and retention layer forming a lofted air space, the lofted air space storing air which passes into and out of the lofted air space from the inner body space during movement of the wearer, anda reflective layer in face-sharing contact with the compressible layer.