JPS5577955A - Production of pulley - Google Patents
Production of pulleyInfo
- Publication number
- JPS5577955A JPS5577955A JP15223578A JP15223578A JPS5577955A JP S5577955 A JPS5577955 A JP S5577955A JP 15223578 A JP15223578 A JP 15223578A JP 15223578 A JP15223578 A JP 15223578A JP S5577955 A JPS5577955 A JP S5577955A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical part
- pulley
- punch
- die
- outside cylindrical
- 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
Links
Landscapes
- Pulleys (AREA)
- Forging (AREA)
Abstract
PURPOSE: To lower the number of steps and cost of V-pulley production by forming side walls through cold rolling in the axial direction of a cylindrical blank, letting these plastically flow and cold rolling these by way of split dies.
CONSTITUTION: An iron plate provided with a hole 10 is extruded to form a pulley outside cylindrical part 12. Next, the hole diameter is expanded by dies 13, 14 and punch 15 to form a pulley inside cylindrical part 1. The die 14 is put in the spacing formed by the inside cylindrical part 1 and outside cylindrical part 2 and a die 16 is installed to the restraining end side of the outside cylindrical part 12. The side wall 2a of the pulley 2 is protruded to the free end side of the outside cylindrical part 12 by using a punch 17. Thence, the side wall 2b is protruded in a similar manner. Next, a protruding edge part 5 is formed to the inner side of the restraining end of the cylindrical part 1 by using a die 20 and punch 21. Thereafter, finishing is applied. This process enables the V-pulley of consistent quality and high strength to be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15223578A JPS5577955A (en) | 1978-12-08 | 1978-12-08 | Production of pulley |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15223578A JPS5577955A (en) | 1978-12-08 | 1978-12-08 | Production of pulley |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5577955A true JPS5577955A (en) | 1980-06-12 |
JPS567775B2 JPS567775B2 (en) | 1981-02-19 |
Family
ID=15536032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15223578A Granted JPS5577955A (en) | 1978-12-08 | 1978-12-08 | Production of pulley |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5577955A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5881536A (en) * | 1981-11-09 | 1983-05-16 | Mitsubishi Electric Corp | Manufacture of pulley for electromagnetic connecting device |
US4899569A (en) * | 1988-02-29 | 1990-02-13 | Sanden Corporation | Method for manufacturing a rotor frame of an electromagnetic clutch |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534828A (en) * | 1976-07-03 | 1978-01-17 | Matsushita Electric Works Ltd | Charging circuit |
JPS5476478A (en) * | 1977-11-30 | 1979-06-19 | Hitachi Ltd | Preparation of single-v groove pulley |
-
1978
- 1978-12-08 JP JP15223578A patent/JPS5577955A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534828A (en) * | 1976-07-03 | 1978-01-17 | Matsushita Electric Works Ltd | Charging circuit |
JPS5476478A (en) * | 1977-11-30 | 1979-06-19 | Hitachi Ltd | Preparation of single-v groove pulley |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5881536A (en) * | 1981-11-09 | 1983-05-16 | Mitsubishi Electric Corp | Manufacture of pulley for electromagnetic connecting device |
US4899569A (en) * | 1988-02-29 | 1990-02-13 | Sanden Corporation | Method for manufacturing a rotor frame of an electromagnetic clutch |
Also Published As
Publication number | Publication date |
---|---|
JPS567775B2 (en) | 1981-02-19 |
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