JPS642732A - Production of joint hardware for deformed steel bar - Google Patents

Production of joint hardware for deformed steel bar

Info

Publication number
JPS642732A
JPS642732A JP15593587A JP15593587A JPS642732A JP S642732 A JPS642732 A JP S642732A JP 15593587 A JP15593587 A JP 15593587A JP 15593587 A JP15593587 A JP 15593587A JP S642732 A JPS642732 A JP S642732A
Authority
JP
Japan
Prior art keywords
projecting
shape
face
tubular body
bar part
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
JP15593587A
Other languages
Japanese (ja)
Other versions
JPH012732A (en
Inventor
Yoshio Kasai
Shigeru Usami
Kozo Toyama
Shin Terauchi
Koki Wami
Shigeo Watanabe
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.)
Kajima Corp
Original Assignee
Kajima Corp
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 Kajima Corp filed Critical Kajima Corp
Priority to JP62-155935A priority Critical patent/JPH012732A/en
Priority claimed from JP62-155935A external-priority patent/JPH012732A/en
Publication of JPS642732A publication Critical patent/JPS642732A/en
Publication of JPH012732A publication Critical patent/JPH012732A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reinforcement Elements For Buildings (AREA)

Abstract

PURPOSE: To easily form the projecting part formed on an inner face by pressing by abutting to the outer peripheral face of a tubular body the inner face of the tubular shape forming the projecting bar part extending in the peripheral direction on the inner face and divided in plural pieces.
CONSTITUTION: The shape 1 inside an outer peripheral ring 3 is made in the state of a projecting bar part 2 being expanded at its diameter and the tubular body 6 for joint hardware is inserted into this shape 1. When the shape 1 is then moved, the projecting bar part 2 of the shape 1 is contracted at its diameter by the action of the moving face 4 becoming of a tapered face. The outer peripheral face of the tubular body 6 inside the shape 1 is therefore pressed by the projecting bar part 2, which is bitten to the outer peripheral part of the tubular body 6 and the projecting part 7 corresponding to the projecting bar part 2 is formed on the inner peripheral face of the tubular body 6. The shape 2 is then moved, the tubular body 6 is moved by expanding the projecting bar part 2 and the forming work of the projecting part 7 is performed once again. Plural projecting parts 7 are formed on the inner peripheral face by repeating this work in order and a joint hardware 5 is completed.
COPYRIGHT: (C)1989,JPO&Japio
JP62-155935A 1987-06-23 Manufacturing method for joint hardware for deformed steel bars Pending JPH012732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-155935A JPH012732A (en) 1987-06-23 Manufacturing method for joint hardware for deformed steel bars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-155935A JPH012732A (en) 1987-06-23 Manufacturing method for joint hardware for deformed steel bars

Publications (2)

Publication Number Publication Date
JPS642732A true JPS642732A (en) 1989-01-06
JPH012732A JPH012732A (en) 1989-01-06

Family

ID=

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4863958A (en) * 1971-12-09 1973-09-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4863958A (en) * 1971-12-09 1973-09-05

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