Patent ID: 8496041
Filing Date: 2013-07-30
Classification: D04B,D10B,E06B,Y10T

Abstract:
1. A ladder tape, comprising: a first warp string, a second warp string, a third warp string, and a fourth warp string; and at least two first weft strings repeatedly passing through the warp strings in a predetermined way; wherein the first warp string and the second warp string are wound by the first weft strings to form a first cord, and the third warp string and the fourth warp string are wound by first weft strings to form a second cord; wherein the first weft strings respectively have a plurality of first sections alternately wound around the first warp string and the second warp string, a plurality of second sections alternately wound around the third warp string and the fourth warp string; wherein the first weft strings have a plurality of bridge sections between the first cord and the second cord, and opposite ends of each bridge sections respectively connect to the corresponding first section and the corresponding second section; wherein the first weft strings respectively have a winding section wound around the first warp string to form a first opening between the first warp string and the second warp string, and wound around the third warp string only to form a second opening between the third warp string and the fourth warp string.