Patent ID: 8052346

Claim:
A tensioner nut comprising: a preload adjusting assembly; a fixing anchor; and a cable connecting between the preload adjusting assembly and the fixing anchor; the preload adjusting assembly comprising: a top cap having an unthreaded central hole; a guide; a slider having a concentric axial hole; and a bolt for tensioning the cable; the guide being fixed to a bottom of the top cap and having a guide hole for the slider to pass therethrough, the guide hole and the slider having cross- sectional shapes that prevent the slider from rotating relative to the guide, the guide hole and the central hole being axially aligned; the bolt passing through the central hole of the top cap and being threadably engaged with a threaded upper end of the axial hole of the slider, and the slider being connected with an upper end of the cable, wherein a stepped portion is formed within a lower end of the axial hole and provides a stepped diameter with the cable received in the axial hole so that when the cable passes through the axial hole, a knot structure formed at an upper end of the cable is retained by the stepped portion; the fixing anchor being provided with an entry hole and an exit hole in which a free lower end of the cable passes therethrough and fixedly retained; wherein the bolt is rotated within the top cap such that the slider moves upwardly within the guide hole along the bolt in a direction away from the fixing anchor in order to apply tension to the cable.