Surface irregularities of trackball power transmission pulley of PC mouse

摘要

In the case of current PC mice, the surface of the pulley, which is in contact with the trackball and transmits the mouse movement to the motion sensor, is smooth, so it may not be a problem for newly purchased products, but as the use time accumulates, the trackball Foreign matter can be trapped in the track-ball, causing friction between the trackball and pulleys, or poor performance in power transmission, causing the mouse user to shake or move the mouse several times. In order to solve this problem, by devising and using a pulley that is formed with a sharp bump on the existing pulley, the friction coefficient between the trackball and the pulley is increased, so that the trackball power can be efficiently transmitted to the pulley to prevent performance degradation.