Footwear item and methods using strobel stitching

Patent metadata

Field	Value
Publication number	US-2018317605-A1
Application number	US-201815968455-A
Country	US
Kind code	A1
Filing date	May 1, 2018
Priority date	May 4, 2017
Publication date	Nov 8, 2018
Grant date	—

Abstract

An item of footwear including an outsole secured to an upper is provided. A bootie is attached to the infill panel. The bootie and infill panel combine to form a cavity receiving the wearer's foot. The bootie is provided by a single air permeable, moisture vapor permeable, and waterproof sheet formed from a plurality of layers of material laminated together. The sheet forms at least one edge portion extending, at least one time, a distance between a toe end and a heel end of the bootie. A protection strip is attached to the outer surface of the sheet adjacent the at least one edge portion. A stitching seam is formed by a thread-type material securing the at least one edge portion of the bootie adjacent an outer peripheral edge portion of the infill panel. The thread-type material extends through the protection strip and the infill panel to form the seam.

First claim

What is claimed is:

1 . An item of footwear comprising:
an outsole; and an upper operably secured to the outsole, the upper surrounding a wearer's foot in use, the upper including:
an infill panel located, at least in part, below the wearer's foot in use, the infill panel having an outer peripheral edge portion;
a bootie extending over a top of the wearer's foot, in use, is attached to the infill panel, the bootie and infill panel combining to form a cavity receiving the wearer's foot in use, the bootie provided by a single air permeable, moisture vapor permeable, and waterproof sheet formed from a plurality of layers of material laminated together, the single air permeable, moisture vapor permeable, and waterproof sheet having an inner surface facing the wearer's foot and an outer surface facing opposite the inner surface in use, the single air permeable, moisture vapor permeable, and waterproof sheet forming at least one edge portion extending, at least one time, a majority of a distance between a toe end and a heel end of the bootie;
a protection strip attached to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet adjacent the at least one edge portion; and
a stitching seam formed by a thread-type material securing the at least one edge portion of the bootie adjacent the outer peripheral edge portion of the infill panel, the thread-type material extending through the protection strip and the infill panel to form the stitching seam.

2 . The item of footwear of claim 1 , wherein the protection strip has an inner surface secured to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet and an opposite outer surface facing away from the inner surface, the outer surface of the protection strip providing an engagement surface for a sewing machine when forming the stitching seam.

3 . The item of footwear of claim 2 , wherein the stitching seam is formed from a strobel stitch.

4 . The item of footwear of claim 1 , wherein the protection strip is spaced at least 3 mm from the edge portion of the single air permeable, moisture vapor permeable, and waterproof sheet and no more than 10 mm from the edge portion of the single air permeable, moisture vapor permeable, and waterproof sheet.

5 . The item of footwear of claim 1 , wherein at least 15% of the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet is directly exposed to an external environment.

6 . The item of footwear of claim 1 , further comprising:
a water proof gasket secured to an outer surface of the infill panel and interposed between the infill panel and the outsole; and an adhesive securing the water proof gasket to the infill panel.

7 . The item of footwear of claim 6 , wherein:
the water proof gasket entirely covers the stitching seam; and the adhesive is located between the water proof gasket and the protection strip.

8 . The item of footwear of claim 1 , wherein the protection strip is a thermoplastic polyurethane adhesively secured to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet.

9 . A method of forming an item of footwear comprising:
forming an upper that will surround a wearer's foot in use, forming the upper including:
providing an infill panel;
providing a bootie formed from a single air permeable, moisture vapor permeable, and waterproof sheet formed from a plurality of layers of material laminated together, the single air permeable, moisture vapor permeable, and waterproof sheet having an inner surface facing the wearer's foot in use and an outer surface facing opposite the inner surface in use, the single air permeable, moisture vapor permeable, and waterproof sheet forms at least one edge portion extending, at least one time, a majority of a distance between a toe end and a heel end of the bootie;
attaching a protection strip to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet adjacent the at least one edge portion;
securing the at least one edge portion of the bootie adjacent the outer peripheral edge portion of the infill panel with a stitching seam formed by a thread-type material, the thread-type material extending through the protection strip and the infill panel to form the stitching seam, wherein the infill panel and the bootie form a cavity receiving the wearer's foot in use with the infill panel located, at least in part, below the wearer's foot in use and the bootie extending over a top of the wearer's foot in use; and
operably securing the upper to an outsole.

10 . The method of claim 9 , wherein the protection strip has an inner surface secured to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet and an opposite outer surface facing away from the inner surface;
wherein the stitching seam is formed using a sewing machine and the step of securing includes engaging the outer surface of the protection strip with the sewing machine when forming the stitching seam.

11 . The method of claim 10 , wherein the stitching seam is strobel stitched, the sewing machine includes a toothed wheel that drives the infill panel, air permeable, moisture vapor permeable, and waterproof sheet, and protection strip through the sewing machine, the toothed wheel engages the outer surface of the protection strip.

12 . The method of claim 11 , wherein driving the infill panel, protection strip and air permeable, moisture vapor permeable, and waterproof sheet through the sewing machine does not include directly engaging the air permeable, moisture vapor permeable, and waterproof sheet with the sewing machine.

13 . The method of claim 9 , wherein attaching the protection strip is spaced at least 3 mm from the edge portion of the single air permeable, moisture vapor permeable, and waterproof sheet and no more than 10 mm from the edge portion of the single air permeable, moisture vapor permeable, and waterproof sheet.

14 . The method of claim 9 , wherein at least 15% of the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet is directly exposed to an external environment after the upper is secured to the outsole.

15 . The method of claim 9 , further comprising:
attaching, with an adhesive, a water proof gasket to an outer surface of the infill panel, such that the water proof gasket is interposed between the infill panel and the outsole.

16 . The method of claim 15 , wherein:
the water proof gasket entirely covers the stitching seam; and the adhesive is located between the water proof gasket and the protection strip.

17 . The method of claim 9 , wherein the protection strip is a thermoplastic polyurethane adhesively secured to the outer surface of the single air permeable, moisture vapor permeable, and waterproof sheet.

18 . An item of footwear comprising:
an outsole; and an upper operably secured to the outsole, the upper surrounding a wearer's foot in use, the upper including:
an infill panel located, at least in part, below the wearer's foot in use, the infill panel having an outer peripheral edge portion
a bootie extending over a top of the wearer's foot is attached to the infill panel, the bootie and infill panel combining to form a cavity receiving the wearer's foot in use, the bootie provided by a single air permeable, moisture vapor permeable, and waterproof sheet formed from a plurality of layers of material laminated together, the single air permeable

Assignees

• Bastianelli Peter
• Kelly Chad
• Bha Altair Llc

Inventors

• Bastianelli Peter
• Kelly Chad

Classifications

• B32B2437/02

  Gloves, shoes · CPC title

• B32B25/10

  next to a fibrous or filamentary layer · CPC title

• B32B2262/0276

  Polyester fibres · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B27/302

  comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers · CPC title