Fan blade and attaching means therefor

摘要

In order to disclose attaching means (3) for attaching a blade section (2) of a fan blade (1), in particular of a smoke extractor fan, to a fan hub, as well as a fan blade (1), which guarantee a high tensile strength even at high temperatures, wherein the attaching means (3) and fan blades (1) are to be produced so as to save as much weight as possible, it is proposed that the attaching means (3) have a connecting section (5) embodied to produce a high-tensile connection to a blade section (2) of a fan blade (1), which connecting section can be arranged essentially in the interior of the blade section (2).

主权项

1. A fan blade comprising:
a blade comprising a blade section; an attachment device comprising a connecting section arranged essentially in the interior of the blade section and a base section having an elongated attaching element running essentially radially to a first side of the base section, the base section comprises a first conical sectional and a second conical section in a radial direction, the second conical section having a smaller diameter than the first conical section; and wherein the attachment device is made of a different material than the blade.