Pad apparatus

Abstract

A pad apparatus includes a connecting element and a supporting element. The connecting element includes an upper end and a lower end. The upper end of the connecting element is connected with a leg. The supporting element includes an upper end and a lower end. The upper end of the supporting element is rotationally connected with the lower end of the connecting element. The lower end is always in tight contact with a surface.

1 . A pad apparatus comprising: 
 a connecting element comprising an upper end for connection with a leg and a lower end; and    a supporting element comprising an upper end rotationally connected with the lower end of the connecting element and a lower end for tight contact with a surface.    
   
   
       2 . The pad apparatus according to  claim 1  wherein the connecting element comprises a cup formed at the upper end for receiving the leg.  
   
   
       3 . The pad apparatus according to  claim 1  wherein the connecting element comprises a socket formed at the lower end, wherein the supporting element comprises, at the upper end, a ball rotationally put in the socket.  
   
   
       4 . The pad apparatus according to  claim 1  wherein the supporting element comprises a pad formed at the lower end.  
   
   
       5 . The pad apparatus according to  claim 2  wherein the connecting element comprises a plug extending from the cup for fitting in a space defined in the leg.  
   
   
       6 . The pad apparatus according to  claim 5  wherein the plug comprises at least one barb formed thereon for preventing the connecting element from falling off the leg.  
   
   
       7 . The pad apparatus according to  claim 1  wherein the connecting element comprises two halves connected with each other.  
   
   
       8 . The pad apparatus according to  claim 7  wherein one of the halves comprises at least one aperture defined therein while the other half comprises at least one pillar fit in the aperture.  
   
   
       9 . The pad apparatus according to  claim 1  wherein the connecting element comprises a ball formed at the lower end thereof, wherein the supporting element comprises two ears for receiving the ball.