JPS5781925A - Pipe bender - Google Patents

Pipe bender

Info

Publication number
JPS5781925A
JPS5781925A JP15656180A JP15656180A JPS5781925A JP S5781925 A JPS5781925 A JP S5781925A JP 15656180 A JP15656180 A JP 15656180A JP 15656180 A JP15656180 A JP 15656180A JP S5781925 A JPS5781925 A JP S5781925A
Authority
JP
Japan
Prior art keywords
pipe
mold
force
oil pressure
pressure cylinder
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
JP15656180A
Other languages
Japanese (ja)
Inventor
Yasunori Taira
Teruyoshi Tanaka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP15656180A priority Critical patent/JPS5781925A/en
Publication of JPS5781925A publication Critical patent/JPS5781925A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a small-sized lightweight bender by attaching an oil pressure cylinder to one of two rotating body pivoted to a central pin and attaching its ram to another and installing a pipe supporting mold to both sides of the central pin allowing free rotation.
CONSTITUTION: A pipe 17 is brought into contact with a flexible bending mold 10, and supporting molds 12, 14 are connected to the outer periphery of the pipe 17 and mounted to rotating bodies 1, 2 with pins 11, 15. When a ram 5c is extended by an oil pressure cylinder 5, force F and its reaction force are applied to the rotating bodies 2, 1 and they rotate clockwise and cointerclockwise respectively around the central pin 9 by angle θ. By this way, the pin 17 is bent to the position of pipe 17' while being supported by a mold 10. At this time, the central part of the pipe 17 is pushed up by force P and the both ends are pulled down by force Q and becomes P=2Q≥2F. The capacity of the oil pressure cylinder is less than a half that of a jim-crow bender. Buckling and becoming ellipse of bending compression side of the pipe 17 can be prevented surely by the mold 10.
COPYRIGHT: (C)1982,JPO&Japio
JP15656180A 1980-11-07 1980-11-07 Pipe bender Pending JPS5781925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15656180A JPS5781925A (en) 1980-11-07 1980-11-07 Pipe bender

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15656180A JPS5781925A (en) 1980-11-07 1980-11-07 Pipe bender

Publications (1)

Publication Number Publication Date
JPS5781925A true JPS5781925A (en) 1982-05-22

Family

ID=15630475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15656180A Pending JPS5781925A (en) 1980-11-07 1980-11-07 Pipe bender

Country Status (1)

Country Link
JP (1) JPS5781925A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600993A (en) * 1995-10-30 1997-02-11 Heaman; Norman L. Flexible shoe for a bending machine
CN105798089A (en) * 2016-04-27 2016-07-27 张家港市友胜机械制造有限公司 Pipe bending machine
CN105798090A (en) * 2016-04-27 2016-07-27 张家港市友胜机械制造有限公司 Pipe bending machine with cutting function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600993A (en) * 1995-10-30 1997-02-11 Heaman; Norman L. Flexible shoe for a bending machine
CN105798089A (en) * 2016-04-27 2016-07-27 张家港市友胜机械制造有限公司 Pipe bending machine
CN105798090A (en) * 2016-04-27 2016-07-27 张家港市友胜机械制造有限公司 Pipe bending machine with cutting function

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