JPS56154197A - Manufacture of multivane fan - Google Patents
Manufacture of multivane fanInfo
- Publication number
- JPS56154197A JPS56154197A JP17450180A JP17450180A JPS56154197A JP S56154197 A JPS56154197 A JP S56154197A JP 17450180 A JP17450180 A JP 17450180A JP 17450180 A JP17450180 A JP 17450180A JP S56154197 A JPS56154197 A JP S56154197A
- Authority
- JP
- Japan
- Prior art keywords
- disc
- vane piece
- vane
- channel
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To improve yielding and productivity by employing a vane piece, whose both ends are cut in a straight line, and to prevent the generation of noise, by a method wherein a triangle part at the outside of an external profile line of a groove in a disc is depressed for deformation to make press contact with the external surface of the vane piece, and the vane pieces are sufficiently secured on the disc.
CONSTITUTION: The opposite ends of a vane piece 4 in a circular arc are cut in a straight line, and grooves 5a, which are formed in the shape approximately similar to and slightly larger than that of the vane piece 4, are formed at equal spaces in a circumference of a disc 5 which is placed at both ends and in the middle of a multivane fan. The disc 5 is formed such that a projection 5b is formed on the forward end part of an outer circumference of an internal profile line 5e of the channel 5a, and a notch 5c is formed in the forward end of an outer circumference of an external profile line 5f. The vane piece 4 engages the channel 5a by the aid of the projection 5b for securing fixedly in a condition that the discs 5 are positioned at given intervals. A triangle part 5d at the outside of the external profile 5f of the channel 5a is then pressed to be deformed as shown in a two-dot chain line, and said part makes press contact with the outer surface of the vane piece 4, whereby the vane pieces 4 are sufficiently secured to the disc. This permits the prevention of the generation of noise, such as chattering, creaking, during the operating time of a multivane fan.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17450180A JPS56154197A (en) | 1980-12-12 | 1980-12-12 | Manufacture of multivane fan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17450180A JPS56154197A (en) | 1980-12-12 | 1980-12-12 | Manufacture of multivane fan |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56154197A true JPS56154197A (en) | 1981-11-28 |
JPS6135396B2 JPS6135396B2 (en) | 1986-08-13 |
Family
ID=15979597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17450180A Granted JPS56154197A (en) | 1980-12-12 | 1980-12-12 | Manufacture of multivane fan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56154197A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4940005U (en) * | 1972-07-11 | 1974-04-09 | ||
JPS50134105U (en) * | 1974-04-19 | 1975-11-05 | ||
JPS50156706A (en) * | 1974-05-24 | 1975-12-18 |
-
1980
- 1980-12-12 JP JP17450180A patent/JPS56154197A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4940005U (en) * | 1972-07-11 | 1974-04-09 | ||
JPS50134105U (en) * | 1974-04-19 | 1975-11-05 | ||
JPS50156706A (en) * | 1974-05-24 | 1975-12-18 |
Also Published As
Publication number | Publication date |
---|---|
JPS6135396B2 (en) | 1986-08-13 |
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