Tension cord fastener structure

Abstract

A fastener structure is provided for fastening an elastic object and includes a bore-carrying fastening member and a pivot-carrying fastening member, which form grip band receiving holes and receiving channels and which have inner sides forming concave arc surfaces. The bore-carrying fastening member forms a bore that rotatably receives a pivot formed on the pivot-carrying fastening member therein. The locking member forms two flanges, which are respectively receivable in the receiving channels of the bore-carrying fastening member and the pivot-carrying fastening member so that the bore-carrying fastening member and the pivot-carrying fastening member are combinable together with the locking member with the concave arc surfaces of the bore-carrying fastening member and the pivot-carrying fastening member and a concave arc surface of the locking member together define and delimit a conic bore for receiving and fastening the elastic object.

1 . A fastener structure adapted to fasten an elastic object and comprising a bore-carrying fastening member and a pivot-carrying fastening member, which form grip band receiving holes and receiving channels and which have inner sides forming concave arc surfaces, the bore-carrying fastening member forming a bore that rotatably receives a pivot formed on the pivot-carrying fastening member therein, the locking member forming two flanges, which are respectively receivable in the receiving channels of the bore-carrying fastening member and the pivot-carrying fastening member so that the bore-carrying fastening member and the pivot-carrying fastening member are combinable together with the locking member with the concave arc surfaces of the bore-carrying fastening member and the pivot-carrying fastening member and a concave arc surface of the locking member together define and delimit a conic bore for receiving and fastening the elastic object. 
     
     
         2 . The fastener structure according to  claim 1 , wherein the bore-carrying fastening member forms a locking sliding face in the receiving channel thereof. 
     
     
         3 . The fastener structure according to  claim 1 , wherein the locking member forms a pawl. 
     
     
         4 . The fastener structure according to  claim 1 , wherein the conic bore has an upper end diameter greater than a lower end diameter.