Telescopic assembly of shoe

Abstract

A telescopic assembly of a shoe comprises a sole having a sliding groove at an upper side thereof and an opened groove at one side of the sliding groove; the opened groove being communicated to the sliding groove and being opened at one side of the sole; a head; a lower side of the head being formed with a sliding block; a teeth bank being formed on the sliding block; the sliding block being engageable to the sliding groove of the sole; the sliding block having a teeth bank; and a detachable unit being made of soft and elastic material; one side of the detachable unit being formed with teeth; another end of the detachable unit being formed with a movable unit having a form like a fork.

1 . A telescopic assembly of a shoe comprising:
 a sole having a sliding groove at an upper side thereof and an opened groove at one side of the sliding groove; the opened groove being communicated to the sliding groove and being opened at one side of the sole;   a head; a lower side of the head being formed with a sliding block; a teeth bank being formed on the sliding block; the sliding block being engageable to the sliding groove of the sole; the sliding block having a teeth bank; and   a detachable unit being made of soft and elastic material; one side of the detachable unit being formed with teeth; another end of the detachable unit being formed with a movable unit having a form like a fork; and   wherein by changing engagement of teeth bank of the sliding block and the teeth of the head, a relative position of the head to the sole is changeable so as to adjust a size of the telescopic assembly.   
   
   
       2 . The telescopic assembly of a shoe as claimed in  claim 1 , wherein one side of the opened groove is formed with a recess and a limiting unit is formed in the detachable unit; and the limiting unit can be received in the recess. 
   
   
       3 . The telescopic assembly of a shoe as claimed in  claim 1 , wherein the limiting unit is formed by an elastic unit and a ball which resists against the elastic unit; and the ball exposes out from the detachable unit. 
   
   
       4 . The telescopic assembly of a shoe as claimed in  claim 1 , wherein at least one threaded hole is arranged on the upper side of the sole and the head has at least one adjusting hole positioned corresponding to the threaded holes of the sole; in assembly, the adjusting hole is aligned to the threaded hole so as to lock the sole to the head by using screw to pass through the adjusting hole and the threaded hole.