Upper body garment

Abstract

An upper body garment prevents a wearer from moving a shoulder forward to put an arm in front of the trunk. The upper body of the garment has a body with a left sleeve and a right sleeve. The body includes a rear body with a left armhole on the left side and a right armhole on the right side. A portion between the armholes exerts a tensile force to pull the shoulder blades of a wearer horizontally inward. The left sleeve includes a rear surface with a left sewn portion sewn to the left armhole. The left sewn portion is narrower in horizontal width than the deepest portion of the left armhole before a rear surface of an upper end of the left sleeve is sewed to the left armhole. The right sleeve is similar.

What is claimed is: 
     
         1 . An upper body garment comprising:
 a body including a rear body and a front body, the rear body having a left armhole on a left side of the body and a right armhole on a right side of the body, wherein a portion of the rear body between the left armhole and the right armhole is configured to exert a tensile force to pull shoulder blades of a wearer horizontally inward;   a left sleeve sewn to the left armhole, wherein before the left sleeve is sewn to the left armhole, a rear surface of the left sleeve includes a left sewn portion and the left armhole includes a first concavity, wherein a largest horizontal distance between the left sewn portion and a first straight line connecting an upper end of the left sewn portion with a lower end of the left sewn portion is less than a horizontal width of a deepest portion of the first concavity measured from a second straight line connecting an upper end of the left armhole to a lower end of the left armhole; and   a right sleeve sewn to the right armhole, wherein before the right sleeve is sewn to the right armhole, a rear surface of the right sleeve includes a right sewn portion and the right armhole includes a second concavity, wherein a largest horizontal distance between the right sewn portion and a third straight line connecting an upper end of the right sewn portion with a lower end of the right sewn portion is less than a horizontal width of a deepest portion of the second concavity measured from a fourth straight line connecting an upper end of the right armhole to a lower end of the right armhole.   
     
     
         2 . The upper body garment according to  claim 1 , wherein:
 the rear surface of the left sleeve includes a high-tension region that is configured to exert a stretching force when being stretched in a longitudinal direction of the left sleeve by the tensile force; and   the rear surface of the right sleeve includes a high-tension region that is configured to exert a stretching force when being stretched in a longitudinal direction of the right sleeve by the tensile force.   
     
     
         3 . The upper body garment according to  claim 2 , wherein:
 the high-tension region of the left sleeve extends from the rear surface of the left sleeve to a front surface of the left sleeve; and   the high-tension region of the right sleeve extends from the rear surface of the right sleeve to a front surface of the right sleeve.   
     
     
         4 . The upper body garment according to  claim 1 , wherein:
 a front surface of the left sleeve includes a non-stretchy region that is configured to stretch less than the high-tension region of the left sleeve when receiving the stretching force in a longitudinal direction of the left sleeve; and   a front surface of the right sleeve includes a non-stretchy region that is configured to stretch less than the high-tension region of the right sleeve when receiving the stretching force in a longitudinal direction of the right sleeve.   
     
     
         5 . The upper body garment according to  claim 1 , wherein:
 a rear surface of the left sleeve includes a non-stretchy region that is configured to stretch when receiving a stretching force in a longitudinal direction of the left sleeve; and   a rear surface of the right sleeve includes a non-stretchy region that is configured to stretch when receiving a stretching force in a longitudinal direction of the right sleeve.   
     
     
         6 . The upper body garment according to  claim 5 , wherein:
 the non-stretchy region of the left sleeve extends from the rear surface of the left sleeve to a front surface thereof; and   the non-stretchy region of the right sleeve extends from the rear surface of the right sleeve to a front surface thereof.   
     
     
         7 . The upper body garment according to  claim 5 , wherein:
 the front surface of the left sleeve includes a high-tension region that is configured to exert a stretching force when being stretched in a longitudinal direction of the left sleeve; and   the front surface of the right sleeve includes a high-tension region that configured to exert a stretching force when being stretched in a longitudinal direction of the right sleeve.   
     
     
         8 . The upper body garment according to  claim 1 , wherein:
 a horizontal distance measured from the left side of the body to the deepest portion of the first concavity equals a horizontal distance measured from the right side of the body to the deepest portion of the second concavity; and   wherein another horizontal distance measured from the deepest portion of the first concavity to the deepest portion of the second concavity equals one-half to six times as long as the horizontal distance.   
     
     
         9 . The upper body garment according to  claim 1 , wherein a portion of the left sleeve configured to face a left armpit of a wearer and a portion of the right sleeve configured to face a right armpit of the wearer have flexible fabrics. 
     
     
         10 . The upper body garment according to  claim 1 , wherein the front body and the rear body are made of a same fabric. 
     
     
         11 . The upper body garment according to  claim 1 , wherein the front body and the rear body are made of a same fabric, wherein the same fabric has woofs directed vertically in the front body and horizontally in the rear body. 
     
     
         12 . The upper body garment according to  claim 1 , wherein the rear body includes a portion made of a same fabric as the front body, wherein resin is applied to the portion such that the portion is configured to exert a horizontal tensile force greater than the front body. 
     
     
         13 . The upper body garment according to  claim 1 , wherein the rear body is made of a fabric that that is configured to exert a tensile force greater than a tensile force able to be exerted by the front body. 
     
     
         14 . The upper body garment according to  claim 1 , wherein the rear body is made of laminated fabrics that are configured to exert a tensile force greater than a tensile force able to be exerted by the front body. 
     
     
         15 . The upper body garment according to  claim 1 , wherein a shortest distance between the upper end of the left sewn portion and the lower end of the left sewn portion is longer than a shortest distance between the upper end of the left armhole and the lower end of the left armhole, and a shortest distance between the upper end of the right sewn portion and the lower end of the right sewn portion is longer than the shortest distance between the upper end of the right armhole and the lower end of the right armhole. 
     
     
         16 . The upper body garment according to  claim 1 , wherein the left sewn portion has a concave shape, and wherein the right sewn portion has a concave shape. 
     
     
         17 . The upper body garment according to  claim 1 , wherein the left sewn portion defines a straight edge, and the right sewn portion defines a straight edge.