JPS5618156A - Manufacture of ring gear - Google Patents
Manufacture of ring gearInfo
- Publication number
- JPS5618156A JPS5618156A JP9259779A JP9259779A JPS5618156A JP S5618156 A JPS5618156 A JP S5618156A JP 9259779 A JP9259779 A JP 9259779A JP 9259779 A JP9259779 A JP 9259779A JP S5618156 A JPS5618156 A JP S5618156A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- blank material
- flat
- ring gear
- manufacture
- 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
Links
Landscapes
- Gears, Cams (AREA)
Abstract
PURPOSE: To spare the material for ring gears and manufacture them with a high efficiency by placing a wire material bent in a ring shape, in a ring-shaped groove formed in a press mold, and obtaining a ring gear formed by pressing the wire material into a flat shape.
CONSTITUTION: In the manufacture of the ring gear, the wire having circular section is bent in ring shape, and connected portions 10 at both ends are welded together to form the first blank material 11. Then, the first blank material 11 is placed on a ring-shaped groove of a flat and rectangular section, formed on the upper surface of a lower mold 12 of the press mold, an upper mold 14 having a flat lower surface is caused to descend, the first blank material 11 is pressed thereby to form the second rectangular and ring-shaped blank material 15 of a flat section. The second blank material 15 is processed similarly as heretofore, and teeth 6 are formed in the outer periphery and a fitted part 7 and a fitting hole 7a are respectively formed to obtain a desired ring gear. Upon this occasion, only hatched parts 15a and 15b become punched scraps and the quantity thereof can be made miminum.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9259779A JPS5618156A (en) | 1979-07-23 | 1979-07-23 | Manufacture of ring gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9259779A JPS5618156A (en) | 1979-07-23 | 1979-07-23 | Manufacture of ring gear |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5618156A true JPS5618156A (en) | 1981-02-20 |
Family
ID=14058852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9259779A Pending JPS5618156A (en) | 1979-07-23 | 1979-07-23 | Manufacture of ring gear |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5618156A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5020558A (en) * | 1973-06-25 | 1975-03-04 |
-
1979
- 1979-07-23 JP JP9259779A patent/JPS5618156A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5020558A (en) * | 1973-06-25 | 1975-03-04 |
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