Contactless Adjustable Tensioner for Craft Spinning Apparatus

摘要

A hobbyist spinning apparatus uses a position-adjustable permanent magnet to induce eddy currents in a rotating conductive disc. The eddy currents oppose the rotation, and the opposing (braking) force applies a consistent tension to a fiber yarn being wound onto a bobbin.

主权项

1. An adjustable tensioner for a spinning wheel, comprising:
a Y-shaped flyer having a yarn guide on one arm of the Y; a cylindrical bobbin with flanges at either end; a frame arranged to hold the cylindrical bobbin and the Y-shaped flyer on a common axis about which both the cylindrical bobbin and the Y-shaped flyer can rotate, the cylindrical bobbin being disposed between arms of the Y; a conductive member coupled to one of the Y-shaped flyer or the cylindrical bobbin so that the conductive member rotates with the one of the Y-shaped flyer or the cylindrical bobbin; and a permanent magnet held by the frame so that a distance between the permanent magnet and the conductive member may be adjusted.