Crotch expansion device for garments and method of manufacture

Abstract

A crotch expansion device for garments is described herein. The crotch expansion device may comprise a body having a substantially triangular shape. The body may comprise one or more of a first surface, a second surface opposite the first surface, a base edge, a first leg edge, a second leg edge, and/or other components. The first leg edge and the base edge may meet at a first vertex. The second leg edge and the base edge may meet at a second vertex. The first leg edge and the second leg edge may meet at an apex. The apex being opposite the base edge. The first leg edge and/or the second leg edge may have a gradient with an absolute value of about 0.4 and/or other values.

What is claimed is: 
     
         1 . A crotch expansion device for garments comprising:
 a body, the body having a substantially triangular shape, the body comprising:
 a first surface; 
 a second surface opposite the first surface; 
 a base edge; 
 a first leg edge, wherein the first leg edge and the base edge meet at a first vertex; 
 a second leg edge, wherein the second leg edge and the base edge meet at a second vertex; 
 wherein the first leg edge and the second leg edge meet at an apex, the apex being opposite the base edge; and 
 wherein the first leg edge and/or the second leg edge has a gradient with an absolute value of about 0.4. 
   
     
     
         2 . The crotch expansion device of  claim 1 , wherein the body is formed from a first portion and a second portion joined at a midline of the body that intersects the apex, the first portion comprises the first leg edge, the first vertex, and half of the base edge, and the second portion comprises the second leg edge, the second vertex, and an other half of the base edge. 
     
     
         3 . The crotch expansion device of  claim 1 , wherein a ratio of a distance spanning between the first vertex and the second vertex to a midline height of the body is about 5:1. 
     
     
         4 . The crotch expansion device of  claim 1 , wherein the body includes a first truncated end forming the first vertex, and a second truncated end forming the second vertex. 
     
     
         5 . The crotch expansion device of  claim 1 , wherein the base edge is curved toward the apex. 
     
     
         6 . A garment having an expanded crotch region, the garment comprising:
 a crotch expansion device sewn into an inseam of the garment, wherein the crotch expansion device comprises:
 a body, the body having a substantially triangular shape, the body comprising:
 a first surface facing an exterior of the garment; 
 a second surface opposite the first surface and facing an interior of the garment; 
 a base edge, the base edge of the body being attached to a posterior edge of the inseam of the garment; 
 a first leg edge, the first leg edge of the body being attached to an anterior edge of the inseam and disposed at a first side of the garment, wherein the first leg edge and the base edge meet at a first vertex; 
 a second leg edge, the second leg edge of the body being attached to the anterior edge of the inseam and disposed at a second side of the garment, wherein the second leg edge and the base edge meet at a second vertex; 
 wherein the first leg edge and the second leg edge meet at an apex, the apex being opposite the base edge and attached to the anterior edge of the inseam between the first vertex and the second vertex; and 
 wherein the first leg edge and/or the second leg edge has a gradient with an absolute value of about 0.4. 
 
   
     
     
         7 . The garment of  claim 6 , wherein the body of the crotch expansion device is formed from a first portion and a second portion joined at a midline of the body that intersects the apex, the first portion comprises the first leg edge, the first vertex, and half of the base edge, and the second portion comprises the second leg edge, the second vertex, and an other half of the base edge. 
     
     
         8 . The garment of  claim 6 , wherein a ratio of a distance spanning between the first vertex and the second vertex to a midline height of the body of the crotch expansion device is about 5:1. 
     
     
         9 . The garment of  claim 6 , wherein the body of the crotch expansion device includes a first truncated end forming the first vertex, and a second truncated end forming the second vertex. 
     
     
         10 . The garment of  claim 6 , wherein the base edge of the crotch expansion device is curved toward the apex. 
     
     
         11 . A method of manufacture of crotch expansion device for garments, the method comprising:
 forming a body, the body having a substantially triangular shape, wherein the body is formed by:
 forming a first surface; 
 forming a second surface opposite the first surface; 
 forming a base edge; 
 forming a first leg edge, wherein the first leg edge and the base edge meet at a first vertex; and 
 forming a second leg edge, wherein the second leg edge and the base edge meet at a second vertex; 
   wherein the first leg edge and the second leg edge are formed meet at an apex, the apex being opposite the base edge; and   wherein the first leg edge and/or the second leg edge are formed to have a gradient with an absolute value of about 0.4.   
     
     
         12 . The method of  claim 11 , wherein the forming the body further comprises:
 forming a first portion;   forming a second portion;   joining the first portion and the second portion at a midline of the body that intersects the apex;   wherein the first portion is formed to comprise the first leg edge, the first vertex, and half of the base edge; and   wherein the second portion is formed to comprise the second leg edge, the second vertex, and an other half of the base edge.   
     
     
         13 . The method of  claim 11 , wherein the forming the body is based on a ratio of a distance spanning between the first vertex and the second vertex to a midline height of the body, the ratio being about 5:1. 
     
     
         14 . The method of  claim 11 , further comprising forming a first truncated end as the first vertex, and forming a second truncated end as the second vertex. 
     
     
         15 . The method of  claim 11 , wherein the base edge is formed to curve toward the apex. 
     
     
         16 . A method of manufacture of a garment having an expanded crotch region, the method comprising:
 forming a crotch expansion device;   attaching the crotch expansion device to an inseam of a garment;   wherein the forming the crotch expansion device comprises:
 forming a body, the body having a substantially triangular shape, wherein the body is formed by:
 forming a first surface; 
 forming a second surface opposite the first surface; 
 forming a base edge; 
 forming a first leg edge, wherein the first leg edge and the base edge meet at a first vertex; 
 forming a second leg edge, wherein the second leg edge and the base edge meet at a second vertex; 
 wherein the first leg edge and the second leg edge are formed meet at an apex, the apex being opposite the base edge; and 
 wherein the first leg edge and/or the second leg edge are formed to have a gradient with an absolute value of about 0.4; and 
 
   wherein the attaching the crotch expansion device to the inseam of the garment comprises:
 facing the first surface toward an exterior of the garment and the second surface toward an interior of the garment; 
 attaching the base edge to a posterior edge of the inseam of the garment; 
 attaching the first leg edge to an anterior edge of the inseam disposed at a first side of the garment; 
 attaching the second leg edge to the anterior edge of the inseam disposed at a second side of the garment; and 
 attaching the apex to the anterior edge of the inseam between the first vertex and the second vertex. 
   
     
     
         17 . The method of  claim 16 , wherein the forming the body further comprises:
 forming a first portion;   forming a second portion;   joining the first portion and the second portion at a midline of the body that intersects the apex;   wherein the first portion is formed to comprise the first leg edge, the first vertex, and half of the base edge; and   wherein the second portion is formed to comprise the second leg edge, the second vertex, and an other half of the base edge.   
     
     
         18 . The method of  claim 16 , wherein the forming the body is based on a ratio of a distance spanning between the first vertex and the second vertex to a midline height of the body, the ratio being about 5:1. 
     
     
         19 . The method of  claim 16 , further comprising forming a first truncated end as the first vertex, and forming a second truncated end as the second vertex. 
     
     
         20 . The method of  claim 16 , wherein the base edge is formed to curve toward the apex.