20150345564 | ROTATING WHEEL MOUNTING STRUCTURE - A rotating wheel mounting structure includes a rotating shaft having a key slot, a rotating wheel mounted on the rotating shaft, a locating member mounted on the rotating shaft and stopped at one side of the rotating wheel, a locating member mounted on the rotating shaft and fastened to the key slot, and a lock member fastened to the rotating shaft to lock the locating member and the rotating wheel, and thus fixation between the locating member and the rotating shaft prohibits the lock member from being rotated in the reversed direction and loosened due to an inertia on the rotating wheel. | 12-03-2015 |