Patent ID: 6938934
Filing Date: 2005-09-06
Classification: B65H

Abstract:
1. A knot tying apparatus, comprising: a thread holding frame having a longitudinal axis and comprising: an engaging arm having a catch end positioning aligned with said longitudinal axis for slidably engaging a tying thread in position; a thread holder, which is extended from said engaging arm, having a rounded bottom end axially extended from said longitudinal axis and an arc-shaped holding groove communicating with said rounded bottom end wherein said holding groove is adapted for slidably holding said tying thread to form a loop thereof while said tying thread is capable of being released at said rounded bottom end of said thread holder; and a resilient element integrally extended from said engaging arm to said thread holder so as to form a one-piece integral member of said thread holding frame such that said engaging arm is capable of bending towards said thread holder to reduce a distance between said catch end of said engaging arm and said holding groove of said thread holder for providing a tension force on said loop of said tying thread.