Patent ID: 9651058
Date: 2017-05-16
CPC Classifications: F04D,Y10T

Claim:
1. An apparatus for securing a ceiling fan blade to a rotor of a ceiling fan motor, the apparatus comprising: a fan blade arm having a T-shaped end post, said T-shaped end post having a main body and a lug, wherein said lug extends from a side of said main body of said T-shaped end post in first direction; a mounting bracket having a mounting hole which has a main bore and a slot extending to one side of said mounting hole, wherein said main bore and said slot are configured for receiving said main bore receiving said main body and said slot receiving said lug for passing said main body and said lug through said mounting bracket, from an exterior side of said mounting bracket to an interior side of said mounting bracket; a cam lock disposed on said interior side of said mounting bracket, adjacent said mounting hole, said cam lock having a cam surface disposed adjacent to said mounting hole and a lock groove surface disposed in spaced apart relation from said slot, separated from said slot by said cam surface; said cam lock having a stop disposed adjacent to said lock groove surface, spaced apart from said cam surface by said lock groove surface; said cam lock further including a lock spring mounted adjacent to said mounting hole, said lock spring extending between said slot and said lock groove surface and having a stop edge disposed in opposed relation to said stop, with said stop edge spaced apart from said stop above said lock groove surface; wherein said cam surface and said lock groove surface of said cam lock are configured for engaging said lug of said T-shaped end post, with said cam surface guiding said lug onto said lock groove surface when said T-shaped end post is inserted through said mounting hole and rotated in a first angular direction relative to said mounting bracket; and wherein said lug of said T-shaped end post of said fan blade arm is inserted through said mounting hole, and once through, said T-shaped end post is rotated in said first angular direction to move said lug along said cam surface and onto said lock groove surface, and dispose said lug between said stop edge of said lock spring and said stop to non-rotatably secure said fan blade arm to said mounting bracket.