PROPELLER

摘要

PURPOSE: A propeller is provided to change a propeller blade and to absorb and transfer significant power. CONSTITUTION: A propeller includes a central support (1) and at least two propeller blades (5). The transverse section of the propeller blade in the foot area near to the support is formed so as to taper as the interval gradually increases in a radial direction from the support. Each blade is fixed to the support by a blade shoe (10) that surrounds the blades in a shape-coupling manner. One blade shoe is separately formed and surrounds one blade foot area. The blade shoe is formed to be separated into two shoe portions that half surround one blade foot, respectively. The shoe portion surrounds a blade by both surfaces (6) of each blade and one narrow surface.