JPS56148431A - Production of cover made of metallic plate for protection of coil end face - Google Patents

Production of cover made of metallic plate for protection of coil end face

Info

Publication number
JPS56148431A
JPS56148431A JP5231180A JP5231180A JPS56148431A JP S56148431 A JPS56148431 A JP S56148431A JP 5231180 A JP5231180 A JP 5231180A JP 5231180 A JP5231180 A JP 5231180A JP S56148431 A JPS56148431 A JP S56148431A
Authority
JP
Japan
Prior art keywords
plate
shape
blank
rib
metallic plate
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
JP5231180A
Other languages
Japanese (ja)
Other versions
JPS6111692B2 (en
Inventor
Takashi Iwaki
Satoshi Ujihara
Takeji Tanaka
Masao Abe
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.)
Yuwa Industries Co Ltd
Original Assignee
Yuwa Industries Co 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 Yuwa Industries Co Ltd filed Critical Yuwa Industries Co Ltd
Priority to JP5231180A priority Critical patent/JPS56148431A/en
Publication of JPS56148431A publication Critical patent/JPS56148431A/en
Publication of JPS6111692B2 publication Critical patent/JPS6111692B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To produce a titled cover of an accurate circular box shape by curving and forming an annular rib to the suitable position of a circular blank of plate, then forming multiple bent parts of a Z shape in section by the folds extending from the rib to the circumferential edge of the blank plate and pressing said bent parts.
CONSTITUTION: An annular rib 2 of a channel shape in section is curved and formed to a blank plate 1 consisting of a circular steel plate formed of a cylindrical part 84 in the central part by pressing. Next, a multiplicity of bent parts 6 of an approximately Z shape in section by a pair of folds 4, 5 extending from the rib 2 to the circumferential edge of the blank plate 1 in a manner as to expand in a V shape are formed to the annular plate 3 between said annular rib 2 and the circumferential edge of the plate 1, leaving spacings in the circumferential direction of the plate 3. Next, the parts 6 are successively pressed to form a cylindrical part 7. In this way, the cover made of the metallic plate of a circular box shape is easily curved and produced without any seam from one sheet of the metallic plate.
COPYRIGHT: (C)1981,JPO&Japio
JP5231180A 1980-04-22 1980-04-22 Production of cover made of metallic plate for protection of coil end face Granted JPS56148431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5231180A JPS56148431A (en) 1980-04-22 1980-04-22 Production of cover made of metallic plate for protection of coil end face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5231180A JPS56148431A (en) 1980-04-22 1980-04-22 Production of cover made of metallic plate for protection of coil end face

Publications (2)

Publication Number Publication Date
JPS56148431A true JPS56148431A (en) 1981-11-17
JPS6111692B2 JPS6111692B2 (en) 1986-04-04

Family

ID=12911229

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5231180A Granted JPS56148431A (en) 1980-04-22 1980-04-22 Production of cover made of metallic plate for protection of coil end face

Country Status (1)

Country Link
JP (1) JPS56148431A (en)

Also Published As

Publication number Publication date
JPS6111692B2 (en) 1986-04-04

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