Seamless webbing loop of rock climbing quickdraw

Abstract

A seamless webbing loop of a rock climbing quickdraw is disclosed in the disclosure, the webbing loop includes a winding yarn and a webbing. The winding yarn is an annular yarn formed by a single yarn that winds into circles or formed by a plurality of combined closed annular coils; the winding has an annular shape, and is provided with an opening on its radially inner face, where the opening is configured to receive the annular yarn, so that the annular yarn can be wrapped by the winding; and the webbing loop of rock climbing quickdraw is sewn with a stitching thread. The annular yarn formed by winding overcomes the defect of the seam between the abutted ends of a webbing in the prior art, thus making the webbing loop more strong and safe. The disclosure has simple processes and is strong, safe and durable, and is seamless after the webbing loop is sewn.

1 . A seamless webbing loop of a rock climbing quickdraw, comprising a winding yarn and a webbing; the winding yarn is an annular yarn formed by a single yarn that winds into circles or formed by a plurality of combined closed annular coils; the winding has an annular shape, and is provided with an opening on its radially inner face, where the opening is configured to receive the annular yarn, so that the annular yarn can be wrapped by the winding; and the webbing loop of rock climbing quickdraw is sewn with a stitching thread. 
     
     
         2 . The seamless webbing loop of the rock climbing quickdraw according to  claim 1 , wherein, the webbing is a polyester webbing with high strength of a single layer structure. 
     
     
         3 . The seamless webbing loop of the rock climbing quickdraw according to  claim 1 , wherein, the annular yarn is a wire formed by a tetoron filament or a nylon filament. 
     
     
         4 . The seamless webbing loop of the rock climbing quickdraw according to  claim 3 , wherein, a diameter of the wire is greater than or equal to 0.08 mm and less than or equal to 5 mm. 
     
     
         5 . The seamless webbing loop of the rock climbing quickdraw according to  claim 1 , wherein, a perimeter of an outer contour of the webbing is slightly greater than that of the annular yarn. 
     
     
         6 . The seamless webbing loop of the rock climbing quickdraw according to  claim 1 , wherein, a diameter of a cross section of the webbing is slightly greater than that of the annular yarn. 
     
     
         7 . The seamless webbing loop of the rock climbing quickdraw according to  claim 1 , wherein, the stitching thread is a wire made by a tetoron filament or a nylon filament.