JPS5636357A - Production of stepped shaft and its device - Google Patents

Production of stepped shaft and its device

Info

Publication number
JPS5636357A
JPS5636357A JP11090679A JP11090679A JPS5636357A JP S5636357 A JPS5636357 A JP S5636357A JP 11090679 A JP11090679 A JP 11090679A JP 11090679 A JP11090679 A JP 11090679A JP S5636357 A JPS5636357 A JP S5636357A
Authority
JP
Japan
Prior art keywords
dies
stock
gripped
parts
pushers
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
JP11090679A
Other languages
Japanese (ja)
Other versions
JPS5725292B2 (en
Inventor
Chuzo Sudo
Michitaka Fujita
Hiroari Morito
Shinjirou Sunouchi
Takashi Nomura
Hiroshi Kariya
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.)
Umebachi Fastener KK
Nippon Steel Corp
Original Assignee
Umebachi Fastener KK
Sumitomo Metal Industries 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 Umebachi Fastener KK, Sumitomo Metal Industries Ltd filed Critical Umebachi Fastener KK
Priority to JP11090679A priority Critical patent/JPS5636357A/en
Publication of JPS5636357A publication Critical patent/JPS5636357A/en
Publication of JPS5725292B2 publication Critical patent/JPS5725292B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To manufacture stepped shafts of light weight without loss in material from a raw bar stock of a definite length which is gripped at its middle part and end parts by the dies having required diameter holes, divided in two parts, and located above and below, by pressing with pushers applied to both ends to bulge out the required parts of the raw stock.
CONSTITUTION: A raw stock 1 of which diameter is the minimum diameter in a stepped shaft product, is gripped between upper and lower stationary split die 2 for a middle part gripping having projection forming hole-dies 2-1 and axially slidable moving dies 3 having large diameter-part forming upper and lower split hole- dies 3-1. And, pushers 4 being positioned at both ends of a stock 1 which is gripped by dies 3, the stock 1 is radially pressed by the gripping of dies and compression of the pushers 4 exerted to the axial direction. Thus applying the compressive forces, the raw stock 1 gripped by dies 2, 3 bulges out into the hole dies 2-1, 3-1, transforming to the product 11, having the bulged parts 1-2, 3-1.
COPYRIGHT: (C)1981,JPO&Japio
JP11090679A 1979-08-30 1979-08-30 Production of stepped shaft and its device Granted JPS5636357A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11090679A JPS5636357A (en) 1979-08-30 1979-08-30 Production of stepped shaft and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11090679A JPS5636357A (en) 1979-08-30 1979-08-30 Production of stepped shaft and its device

Publications (2)

Publication Number Publication Date
JPS5636357A true JPS5636357A (en) 1981-04-09
JPS5725292B2 JPS5725292B2 (en) 1982-05-28

Family

ID=14547652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11090679A Granted JPS5636357A (en) 1979-08-30 1979-08-30 Production of stepped shaft and its device

Country Status (1)

Country Link
JP (1) JPS5636357A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028937U (en) * 1983-08-01 1985-02-27 トヨタ自動車株式会社 Mold structure for closed forging
JPS61296936A (en) * 1985-06-24 1986-12-27 Marumo Seimitsu Kogyo Kk Production for kick starter arm
EP4434652A1 (en) * 2023-03-23 2024-09-25 Sigma & Hearts Co. Ltd. Method for manufacturing constant velocity drive shaft
EP4566739A1 (en) * 2023-12-07 2025-06-11 Sigma & Hearts Co. Ltd. Method for manufacturing constant velocity drive shaft

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6121491A (en) * 1983-12-28 1986-01-30 豊田合成株式会社 Rubber hose with joint

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102564A (en) * 1973-02-03 1974-09-27
JPS5096456A (en) * 1973-12-28 1975-07-31

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49102564A (en) * 1973-02-03 1974-09-27
JPS5096456A (en) * 1973-12-28 1975-07-31

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6028937U (en) * 1983-08-01 1985-02-27 トヨタ自動車株式会社 Mold structure for closed forging
JPS61296936A (en) * 1985-06-24 1986-12-27 Marumo Seimitsu Kogyo Kk Production for kick starter arm
EP4434652A1 (en) * 2023-03-23 2024-09-25 Sigma & Hearts Co. Ltd. Method for manufacturing constant velocity drive shaft
EP4566739A1 (en) * 2023-12-07 2025-06-11 Sigma & Hearts Co. Ltd. Method for manufacturing constant velocity drive shaft

Also Published As

Publication number Publication date
JPS5725292B2 (en) 1982-05-28

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