Fan Impeller

摘要

An impeller for a fan, comprising a hub and a plurality of blades 40 extending from the hub, wherein each blade has a leading edge and a trailing edge and wherein each blade has a first portion made from a rigid material and a second portion formed on the leading edge of the first portion and formed from a resilient material such as rubber. The impeller increases the safety of the impeller by reducing the potential damage or injury caused by collision with the impeller. In addition to the rubber tip 70 formed on each blade the hub may be covered with a rubber dome 100 which connects all the rubber tips 70 together. A fan with such an impeller does not require a protective grill. The absence of a grill increases the efficiency of the fan and reduces the noise caused by turbulence as air passes through the grill. A method of making the impeller is also provided.