Multistage hula-hoop

Abstract

A multistage hula-hoop having a plurality of hoops connected with a certain distance between a upper and lower hoops so that a user may effectively use the hula-hoop without large phase change of the hoops includes at least two hoops ( 10 ) disposed with being vertically spaced apart each other with a predetermined distance, and connecting means connecting the hoops each other not to deviate from a certain phase. This connecting means may be either at least one connecting line ( 20 ) or at least one pair of magnets ( 52 ).

What is claimed is:  
     
         1 . A multistage hula-hoop comprising: 
 at least two hoops ( 10 ) disposed with being vertically spaced apart each other with a predetermined distance; and    connecting means connecting the hoops each other not to deviate from a certain phase.    
     
     
         2 . A multistage hula-hoop according to  claim 1 , 
 wherein the connecting means is at least one connecting line ( 20 )    
     
     
         3 . A multistage hula-hoop according to  claim 2 , 
 wherein a groove ( 12 ) is formed at a position of the hoop where the connecting line ( 20 ) is connected in order to prevent slipping of the connecting lines ( 20 ).    
     
     
         4 . A multistage hula-hoop according to  claim 2 , 
 wherein the length of the connecting line for connecting a plurality of hoops each other is adjustable to change the distance between two adjacent hoops.    
     
     
         5 . A multistage hula-hoop according to  claim 2 , 
 wherein the connecting line for connecting a plurality of hoops is made of flexible material.    
     
     
         6 . A multistage hula-hoop according to  claim 2 , further comprising at least one accessory installed on the connecting line between two adjacent hoops.  
     
     
         7 . A multistage hula-hoop according to  claim 2 , 
 wherein the connecting line for connecting a plurality of hoops is made of transparent material.    
     
     
         8 . A multistage hula-hoop according to  claim 2 , 
 wherein the connecting line is capable of being detached from the hoop when being assembled to the hoop.    
     
     
         9 . A multistage hula-hoop according to  claim 8 , further comprising a loop ( 24 ) formed at one end of the connecting line and a hooking element ( 30 ), which is possibly opened and closed, installed at the other end of the connecting line so that two adjacent hoops are connected using the loop and the hooking element respectively.  
     
     
         10 . A multistage hula-hoop according to  claim 8 , further comprising hooking elements, which are possibly opened and closed, installed at both ends of the connecting line so that two adjacent hoops are connected using the hooking element respectively.  
     
     
         11 . A multistage hula-hoop according to  claim 8 , further comprising an assembly element ( 26 ) installed at one end of the connecting lines and an assembly hole ( 14 ) formed on the hoop so that two adjacent hoops are connected by inserting and fixing the assembly element into the assembly hole.  
     
     
         12 . A multistage hula-hoop according to  claim 8 , 
 wherein a plurality of beads ( 28 ) of a predetermined diameter are installed on the connecting line, while a piercing hole ( 40 ), in which a large hole ( 42 ) of a diameter larger than that of the beads is connected through a neck ( 46 ) to a small hole ( 44 ) of a diameter smaller than that of the beads, is formed on each of the hoops,    whereby the connecting line with a plurality of beads freely moves through the large hole to adjust the distance between two adjacent hoops, and the connecting line with the beads is transferred through the neck from the large hole to the small hole so as to be inserted in the small hole, thus fixed to the corresponding hoop.    
     
     
         13 . A multistage hula-hoop according to  claim 1 , 
 wherein the connecting means is at least one pair of permanent magnets ( 52 ) are installed in the hoops to cause repulsive force between the hoops.