JPS56154197A - Manufacture of multivane fan - Google Patents

Manufacture of multivane fan

Info

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
Application number
JP17450180A
Other languages
Japanese (ja)
Other versions
JPS6135396B2 (en
Inventor
Akio Suzuki
Genji Sayama
Ikuo Yamakawa
Yoji Sekine
Katsuhisa Noda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17450180A priority Critical patent/JPS56154197A/en
Publication of JPS56154197A publication Critical patent/JPS56154197A/en
Publication of JPS6135396B2 publication Critical patent/JPS6135396B2/ja
Granted legal-status Critical Current

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
JP17450180A 1980-12-12 1980-12-12 Manufacture of multivane fan Granted JPS56154197A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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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