JPS55147440A - Working method of thread-less coupling - Google Patents

Working method of thread-less coupling

Info

Publication number
JPS55147440A
JPS55147440A JP5608779A JP5608779A JPS55147440A JP S55147440 A JPS55147440 A JP S55147440A JP 5608779 A JP5608779 A JP 5608779A JP 5608779 A JP5608779 A JP 5608779A JP S55147440 A JPS55147440 A JP S55147440A
Authority
JP
Japan
Prior art keywords
convex part
blank
recess
thread
tape
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
JP5608779A
Other languages
Japanese (ja)
Inventor
Yoshimitsu Nakamura
Mitsuo Sugioka
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP5608779A priority Critical patent/JPS55147440A/en
Publication of JPS55147440A publication Critical patent/JPS55147440A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B3/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
    • B44B3/008—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings characterised by multi-step processes

Landscapes

  • Forging (AREA)
  • Punching Or Piercing (AREA)

Abstract

PURPOSE:To make possible continuous working of couplings by cutting the tape- form flat plate which has been subjected to piercing and tapping to convex shape continuously at every specified spacing and bending the cut plates thereby fitting the convex part into the recess of the other end to make it pipe-form. CONSTITUTION:A tape-form flat plate is unrolled and is chamfered by a roll 2 having a tapered surface 2a. Next, it is pierced with lower holes 3 by a punch and die, is worked with counter sinks 4 and is formed with tapping holes 4a. Also, it is engraved with the producer's name 5 and is embossed with stopper protrusions 9. Next, it is subjected to cutting including a convex part 6 which is wider at the end than the root, whereby the blank 8 of square plate form having the convex part 6 at one end face and a recess 7 at the other end face is formed. Thence, with a cylinder 9 as a core material, it is bent by a push rod 10 to let the convex part 6 fit into the recess 7. The chuck-form push rod 10 is then vibrated to swage the blank 8. Thereby, the blank 8 is formed to pipe form and the thread-less coupling A is obtained.
JP5608779A 1979-05-07 1979-05-07 Working method of thread-less coupling Pending JPS55147440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5608779A JPS55147440A (en) 1979-05-07 1979-05-07 Working method of thread-less coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5608779A JPS55147440A (en) 1979-05-07 1979-05-07 Working method of thread-less coupling

Publications (1)

Publication Number Publication Date
JPS55147440A true JPS55147440A (en) 1980-11-17

Family

ID=13017304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5608779A Pending JPS55147440A (en) 1979-05-07 1979-05-07 Working method of thread-less coupling

Country Status (1)

Country Link
JP (1) JPS55147440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074580A (en) * 2001-03-20 2002-10-04 (주)동서엠.티 Manufacturing method of strip steel pipe
CN104759487A (en) * 2015-03-30 2015-07-08 浙江海洋学院 Processing method of pipe connecting part

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149571A (en) * 1974-05-23 1975-11-29
JPS5154863A (en) * 1974-11-09 1976-05-14 Yasuo Oka ATSUITAKOHANYORIKANTAIOSETSUSAKUSURU HOHO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50149571A (en) * 1974-05-23 1975-11-29
JPS5154863A (en) * 1974-11-09 1976-05-14 Yasuo Oka ATSUITAKOHANYORIKANTAIOSETSUSAKUSURU HOHO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020074580A (en) * 2001-03-20 2002-10-04 (주)동서엠.티 Manufacturing method of strip steel pipe
CN104759487A (en) * 2015-03-30 2015-07-08 浙江海洋学院 Processing method of pipe connecting part

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