Patent ID: 9200677
Filing Date: 2015-12-01
Classification: F16B,F16D,Y10T

Abstract:
1. A shaft coupling structure in which a second shaft is inserted into a cylindrical portion provided in a first shaft to be coupled with each other, wherein, with a bush being interposed between an inner circumference of the first shaft and an outer circumference of the second shaft, the first shaft and the second shaft are coupled with each other by a combination of a key coupling and a clamp coupling, wherein the first shaft has a keyway for the key coupling which a key engages and a shaft slit which is formed in the cylindrical portion by cutting off a portion thereof in an axial direction, wherein a fastener for the clamp coupling is mounted on a portion of an outer circumference of the first shaft in which the shaft slit is formed, wherein the bush has a bush slit which corresponds to the keyway, and wherein, after the clamp coupling is completed, the bush slit of the bush has a width larger than a width of the keyway of the first shaft.