JPS5481509A - Method of manufacturing fan casings - Google Patents

Method of manufacturing fan casings

Info

Publication number
JPS5481509A
JPS5481509A JP14849277A JP14849277A JPS5481509A JP S5481509 A JPS5481509 A JP S5481509A JP 14849277 A JP14849277 A JP 14849277A JP 14849277 A JP14849277 A JP 14849277A JP S5481509 A JPS5481509 A JP S5481509A
Authority
JP
Japan
Prior art keywords
drum plate
side plates
flanges
parts
bent
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.)
Pending
Application number
JP14849277A
Other languages
Japanese (ja)
Inventor
Hisao Tanaka
Masaru Okamoto
Keiji Yasui
Masatsura Murotani
Nobuyoshi Otani
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Refrigeration Co
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 Matsushita Refrigeration Co filed Critical Matsushita Refrigeration Co
Priority to JP14849277A priority Critical patent/JPS5481509A/en
Publication of JPS5481509A publication Critical patent/JPS5481509A/en
Pending legal-status Critical Current

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

PURPOSE: To produce efficiently a fan casing which is composed of two nearly circular side plates with suction ports bored and a drum plate roll-formed around them by reducing the number of parts and assembly man-hours.
CONSTITUTION: When producing a fan casing 10 composed of two side plates 12 and 12' with suction 11 and 11' bored, and a drum plate 13, first, two longitudinal ends of the drum plate are bent perpendicularly forming flanges 14 and 14', next, the drum plate is rolled so that the flanges may stretch outwards: while on the outer rims of the two side plates 12 and 12', bent parts 15 and 15' are formed to receive said flanges 14 and 14'. Next, fitting the flanges 14 and 14' into the vent parts 15 and 15', the two side plates 12 and 12' and the drum plate 13 are set in a pressing device 16, and the bent parts 15 and 15' are culed with the dies 19, 21, 24 and 26 of the device. By so doing, the two side plates 12 and 12' and the drum plate 13 are assembled.
COPYRIGHT: (C)1979,JPO&Japio
JP14849277A 1977-12-09 1977-12-09 Method of manufacturing fan casings Pending JPS5481509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14849277A JPS5481509A (en) 1977-12-09 1977-12-09 Method of manufacturing fan casings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14849277A JPS5481509A (en) 1977-12-09 1977-12-09 Method of manufacturing fan casings

Publications (1)

Publication Number Publication Date
JPS5481509A true JPS5481509A (en) 1979-06-29

Family

ID=15453955

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14849277A Pending JPS5481509A (en) 1977-12-09 1977-12-09 Method of manufacturing fan casings

Country Status (1)

Country Link
JP (1) JPS5481509A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211594A (en) * 1982-05-29 1983-12-09 グルントフオス・エ−／エス Pump device
US5369972A (en) * 1990-12-25 1994-12-06 Ebara Corporation Interstage casing for a pump made of sheet metal and method of manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211594A (en) * 1982-05-29 1983-12-09 グルントフオス・エ−／エス Pump device
US5369972A (en) * 1990-12-25 1994-12-06 Ebara Corporation Interstage casing for a pump made of sheet metal and method of manufacturing the same

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