JPS61144294U

JPS61144294U -

Info

Publication number: JPS61144294U
Application number: JP2710385U
Authority: JP
Priority date: 1985-02-28
Filing date: 1985-02-28
Publication date: 1986-09-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す全体斜視図、
第２図はブレードの１つを示す斜視図、第３図は
ブレードの１つを示す側面図、第４図は作用を示
す断面図、第５図は騒音特性を示すグラフ、第６
図は本考案の他の実施例を示すブレードの斜視図
、第７図は従来例を示す全体斜視図、第８図は使
用状態を示す断面図、第９図は従来例における騒
音特性を示すグラフである。１１，１１′…ブレード、１２…回転軸。 FIG. 1 is an overall perspective view showing an embodiment of the present invention;
Fig. 2 is a perspective view showing one of the blades, Fig. 3 is a side view showing one of the blades, Fig. 4 is a sectional view showing the action, Fig. 5 is a graph showing noise characteristics, and Fig. 6 is a side view showing one of the blades.
Figure 7 is a perspective view of a blade showing another embodiment of the present invention, Figure 7 is an overall perspective view showing a conventional example, Figure 8 is a sectional view showing the state of use, and Figure 9 shows noise characteristics in the conventional example. It is a graph. 11, 11'...blade, 12...rotating shaft.

Claims

[Claims for Utility Model Registration] 1. A cross-flow fan having a large number of blades arranged around a rotating shaft in a direction parallel to its axis,
A cross-flow fan characterized in that each of the blades is entirely or partially shaped so that the radial position from the rotation axis changes in the longitudinal direction of the blade. 2. The cross-flow fan according to claim 1, wherein the blade is composed of a plurality of parallel parts having different radii from the rotation axis and an inclined part connecting the parallel parts. 3. The cross-flow fan according to claim 1, wherein the blade has a configuration in which a plurality of inclined portions whose radius from the rotation axis gradually changes are arranged in series.