JPS5614028A - Die for bending work - Google Patents

Die for bending work

Info

Publication number
JPS5614028A
JPS5614028A JP8854379A JP8854379A JPS5614028A JP S5614028 A JPS5614028 A JP S5614028A JP 8854379 A JP8854379 A JP 8854379A JP 8854379 A JP8854379 A JP 8854379A JP S5614028 A JPS5614028 A JP S5614028A
Authority
JP
Japan
Prior art keywords
die
parts
spring back
tip
bar type
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
JP8854379A
Other languages
Japanese (ja)
Inventor
Takuo Mori
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.)
AKAE KIKAI KOGYO CO
AKAE KIKAI KOGYO KK
Original Assignee
AKAE KIKAI KOGYO CO
AKAE KIKAI KOGYO KK
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 AKAE KIKAI KOGYO CO, AKAE KIKAI KOGYO KK filed Critical AKAE KIKAI KOGYO CO
Priority to JP8854379A priority Critical patent/JPS5614028A/en
Publication of JPS5614028A publication Critical patent/JPS5614028A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To carry out the forming work for the channel type parts through one pass, and to prevent the deformation caused by the spring back action, by inclining the supplementary die within the main die utilizing the working load.
CONSTITUTION: The punch P is pressed down onto the bar type blank placed on the upper surface of the die in order to push the bar type blank into the die hole C; hereby, the bar type blank is bent into U-shape, and the U-type parts M is formed within the die hole C. By further pressing down the punch P, a downward force is loaded on the tip of the side protuberance 3B of the supplmentary die 3 through the parts M, so that the tip is pushed down. This downward force is converted into the force to incline the tip end of the upper externsion 3A to the left side; hereby, the parts M is pressed from the side by the side wall 2a2 and the supplementary die surface 3a2. As a result, the spring back action is prevented by this side pressing action, and the spring back action does not work even after the parts M is removed away from the die.
COPYRIGHT: (C)1981,JPO&Japio
JP8854379A 1979-07-12 1979-07-12 Die for bending work Pending JPS5614028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8854379A JPS5614028A (en) 1979-07-12 1979-07-12 Die for bending work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8854379A JPS5614028A (en) 1979-07-12 1979-07-12 Die for bending work

Publications (1)

Publication Number Publication Date
JPS5614028A true JPS5614028A (en) 1981-02-10

Family

ID=13945757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8854379A Pending JPS5614028A (en) 1979-07-12 1979-07-12 Die for bending work

Country Status (1)

Country Link
JP (1) JPS5614028A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647842A (en) * 1987-06-30 1989-01-11 Ricoh Kk Image communication telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647842A (en) * 1987-06-30 1989-01-11 Ricoh Kk Image communication telephone set

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