Patent ID: 9382918
Filing Date: 2016-07-05
CPC Classification: F04D,F24F

Claim Text:
1. A ceiling fan comprising: a suspension part fixed to a ceiling; a cylindrical pipe suspended from the suspension part; a main body coupled to the cylindrical pipe, the main body including a cylindrical coupling part extending upward, an upper portion of the cylindrical coupling part having a coupling hole penetrating in a horizontal direction, a lower portion of the cylindrical pipe having a pipe hole penetrating in the horizontal direction, and the cylindrical coupling part being inserted into the cylindrical pipe such that the coupling hole communicates with the pipe hole; a bolt inserted into the communicated coupling hole and pipe hole; and a nut fastened to the bolt, the bolt including a threaded portion penetrating the coupling hole and the pipe hole and a head located at an end of the threaded portion, the head having a curved surface that conforms to an outer surface of the cylindrical pipe, and the curved surface having a head direction guide part that guides a direction of the curved surface such that the curved surface is fixed in contact with the outer surface with the nut, the head direction guide part is a protrusion extending from a circular arc-shaped end of the curved surface.