Automatic tying shoelace

Abstract

An automatic tying shoelace is disclosed. Thereby, the user does not need to tie the shoelace body is disclosed. The shoelace body can be fixed by two positioning devices at the lateral and rear sides. The shoelace has a long shoelace body and at least two positioning devices. A first positioning device and a second positioning device; one free end of the shoelace body has respective release-proof devices. A position of the first positioning device is lower than that of the second positioning device. The first positioning device serves for being inserted by the free end of the shoelace body and then after the shoelace body is tightened. The shoelace body is released in the second positioning device.

What is claimed is:  
     
         1 . An automatic tying shoelace used to tie a shoe; the shoe including a shoe upper surface having two lateral sides and a rear side, and a shoe bottom; a plurality of juxtaposed holes being formed on the shoe upper surface for being inserted by a shoelace; characterized in that: 
 the shoelace has a long shoelace body; at least two positioning devices, a first positioning device and a second positioning device are positioned on the shoe upper surface; one free end of the shoelace body has respective release-proof device; a position of the first positioning device is lower than that of the second positioning device; the first positioning device serves for being inserted by the free end of the shoelace body and then after the shoelace body is tightened; and then the shoelace body is fixed to the second positioning device.    
     
     
         2 . The automatic tying shoelace as claimed in  claim 1 , wherein the first positioning device is positioned at two lateral sides of the shoe surface and the second positioning device is positioned at a rear side of the shoe.  
     
     
         3 . The automatic tying shoelace as claimed in  claim 1 , wherein the first positioning device is positioned near or at the shoe bottom.  
     
     
         4 . The automatic tying shoelace as claimed in  claim 2 , wherein the first positioning device and second positioning device have respective axial portions for being connected to the shoe; one end of each axial portion far away from the shoe is extended with an bending portion which is vertical to the axial portion or has an acute angle with respect to the axial portion; one end of the bending portion has a protruding stop which faces toward the shoe.  
     
     
         5 . The automatic tying shoelace as claimed in  claim 1 , wherein the release-proof device of the shoelace body is formed at a distal end of the shoelace body.  
     
     
         6 . The automatic tying shoelace as claimed in  claim 5 , wherein a protecting mask covers the release-proof device.  
     
     
         7 . The automatic tying shoelace as claimed in  claim 1 , wherein a protecting piece covers the first positioning device and has a sticky end with respect to a sticky end on the shoe so that the first positioning device will not protrudes out.  
     
     
         8 . The automatic tying shoelace as claimed in  claim 1 , wherein the first positioning device has two ends fixed to the shoe.  
     
     
         9 . The automatic tying shoelace as claimed in  claim 1 , wherein a plurality of bags are installed near the second positioning device; by these bags, the second positioning device is fixed by being inserted into the bags.  
     
     
         10 . The automatic tying shoelace as claimed in  claim 1 , wherein the rear side of the shoe has a track two sides of which have teeth; a center of the track contains an adjuster; two sides of the adjuster facing toward the teeth have elastic positioning rods; one end of each positioning rod with respect to the teeth has a positioning portion which can slide into the teeth.  
     
     
         11 . The automatic tying shoelace as claimed in  claim 1 , wherein the second positioning device has two cambered pieces which are connected to the shoe and the two cambered pieces are not connected to one another; the two cambered pieces are formed with a space therebetween for being passed by the shoelace; one end of the shoelace body passing through the space has the release-proof device for preventing the shoelace body from releasing.  
     
     
         12 . The automatic tying shoelace as claimed in  claim 1 , wherein an elastomer with two sides having respective hooks are added to the rear side of the shoe; the hook serves to hook the shoelace body of the second positioning device and the release-proof device serves to prevent the second positioning device from releasing.