Cable tensioning system for modular stairlifts

A method of assembling a modular rail by an internal cable, comprising:

• providing an adjustable cable, the adjustable cable including an anchor assembly disposed at a first end of the adjustable cable and a series of ball shanks spaced at predetermined intervals along a portion of the adjustable cable at an opposing second end of the adjustable cable, the ball shanks being a plurality of coupling points;
• inserting the adjustable cable within an internal cavity of a modular rail made of a plurality of rail segments arranged in series, such that the anchoring assembly engages a first end of the modular rail;
• coupling a tensioning assembly to a last ball shank of the series of ball shanks, such that the tensioning assembly engages a second end of the modular rail;
• adjusting the anchor assembly to remove slack from the adjustable cable and draw the plurality of rail segments tight to each other in series to provide structural rigidity to the modular rail;
• and
• adjusting the tensioning assembly to increase a tension of the adjustable cable and to increase a compression on the modular rail to impart structural rigidity in the modular rail.