Loop for shoelace utilizing asymmetric pulley

Abstract

A loop for a shoelace utilizing an asymmetric pulley, including: a plurality of shoelace loops mounted to each of eyelet tabs of a shoe using respective rivets, wherein each of the shoelace loops includes: an asymmetric pulley having a pulley groove for guiding a shoelace without allowing the shoelace to be removed therefrom by itself and opposite circular side surfaces provided on opposite sides of the pulley groove, in which a diameter of a first one of the opposite side surfaces is larger than a diameter of a second one; a pulley holder having a structure suitable for sitting the pulley therein; and a rotating pin rotatably mounting the pulley to the pulley holder.

1 . A loop for a shoelace utilizing an asymmetric pulley, comprising:
 a plurality of shoelace loops mounted to each of a plurality of eyelet tabs of a shoe using respective rivets, wherein each of the shoelace loops comprises:   an asymmetric pulley having a pulley groove for guiding a shoelace without allowing the shoelace to be removed therefrom by itself and opposite circular side surfaces provided on opposite sides of the pulley groove, in which a diameter of a first one of the opposite side surfaces is larger than a diameter of a second one;   a pulley holder having a structure suitable for sitting the pulley therein; and   a rotating pin rotatably mounting the pulley to the pulley holder.   
     
     
         2 . The loop for the shoelace utilizing the asymmetric pulley as set forth in  claim 1 , further comprising:
 a ratchet mounted to a lower surface of the pulley of an uppermost one of the shoelace loops so as to prevent the shoelace from coming loose by itself once the shoelace has been pulled and tightened and so as to loosen the shoelace when a lever is manipulated.   
     
     
         3 . A loop for a shoelace utilizing an asymmetric pulley, comprising:
 a plurality of shoelace loops mounted to each of a plurality of eyelet tabs of a shoe using respective rivets, wherein each of the shoelace loops comprises:   an asymmetric pulley having a pulley groove for guiding a shoelace without allowing the shoelace to be removed therefrom by itself and opposite circular side surfaces provided on opposite sides of the pulley groove, in which a diameter of a first one of the opposite side surfaces is larger than a diameter of a second one;   a pulley holder having a structure suitable for sitting the pulley therein;   a rotating pin rotatably mounting the pulley to the pulley holder; and   at least one double pulley formed by symmetrically arranging two single pulleys, wherein opposite sides of the shoelace pass through the double pulley.   
     
     
         4 . The loop for the shoelace utilizing the asymmetric pulley as set forth in  claim 3 , wherein the double pulley is seated in a pulley holder having a structure suitable for sitting the double pulley therein and is rotatably mounted to the pulley holder using a rotating pin. 
     
     
         5 . The loop for the shoelace utilizing the asymmetric pulley as set forth in  claim 3 , wherein when one double pulley is installed in the shoe, the double pulley is placed at the second upper shoelace loops that are placed below uppermost shoelace loops, and when at least two double pulleys are installed in the shoe, a first one of the double pulleys is placed at the second upper shoelace loops and a second one of the double pulleys is placed at the fourth upper shoelace loops or below the fourth upper shoelace loops, wherein the two double pulleys are put into place without being continuously placed. 
     
     
         6 . The loop for the shoelace utilizing the asymmetric pulley as set forth in  claim 5 , further comprising:
 two ratchets mounted to a lower surface of the double pulley that is placed at the second upper shoelace loops, wherein the two ratchets prevent the shoelace from coming loose by itself once the shoelace has been pulled and tightened and loosen the shoelace when a lever is manipulated.