Patent ID: 10480244

Abstract:
An adjustable cord winder includes a winding unit, two cord-winding gears, two glide units, and two driving cords. The winding unit has two coil spring gears. A coil spring is connected between the coil spring gears. Each cord-winding gear meshes with one of the coil spring gears and thus rotates synchronously with the coil spring gear. Each glide unit has a roller unit capable of rotating by a specific angle and rollers freely, rotatably disposed at the roller unit. Each driving cord has one end connected to the cord-winding gear to allow the driving cord to wind on or let out from the cord-winding gear. The driving cords wind on at least one roller. The adjustable cord winder is characterized by the rollers for enhancing stability and smoothness of the driving process of the driving cords, and the roller unit for adjusting the tension on the driving cords.