JPS5662642A - Working method of pedestal type hinge by cold forging - Google Patents
Working method of pedestal type hinge by cold forgingInfo
- Publication number
- JPS5662642A JPS5662642A JP13732579A JP13732579A JPS5662642A JP S5662642 A JPS5662642 A JP S5662642A JP 13732579 A JP13732579 A JP 13732579A JP 13732579 A JP13732579 A JP 13732579A JP S5662642 A JPS5662642 A JP S5662642A
- Authority
- JP
- Japan
- Prior art keywords
- forming
- shaft
- parts
- pierced
- hinges
- 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
- Forging (AREA)
Abstract
PURPOSE: To improve productivity and material yield by forging projectiosn at solid metal parts, and piercing these thereby forming shaft insertion holes.
CONSTITUTION: A hinge work of a short square bar material 4 is used and is cold forged by means of an upper die 5 and lower die provided with shaft cylindrical part forming die parts 5a on the top and under surfaces in the longitudinal direction, whereby a base plate 4a for forming mounting seats of hinges is swaged. At the same time, projecting pats 4b for forming the shaft cylinders of hinges are molded on the top surface of the base plate 4a at the thickness of the short square bar material 4 to obtain a primary work 4A. Thence, the amorphous swaged parts 4c are removed to a fixed shape, and shaft insertion holes 4d are pierced by drilling or the like to the projecting parts 4b for forming shaft cylinder, whereby the pedestal type hine 4B provided with the mounting seat plates 4a' and shaft cylinders 4b' is obtained. The mounting holes 4e of the mounting seat plates 4a' are pierced in the above-mentioned working process or on site.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13732579A JPS5662642A (en) | 1979-10-24 | 1979-10-24 | Working method of pedestal type hinge by cold forging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13732579A JPS5662642A (en) | 1979-10-24 | 1979-10-24 | Working method of pedestal type hinge by cold forging |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5662642A true JPS5662642A (en) | 1981-05-28 |
Family
ID=15196029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13732579A Pending JPS5662642A (en) | 1979-10-24 | 1979-10-24 | Working method of pedestal type hinge by cold forging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662642A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49125263A (en) * | 1973-04-06 | 1974-11-30 |
-
1979
- 1979-10-24 JP JP13732579A patent/JPS5662642A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49125263A (en) * | 1973-04-06 | 1974-11-30 |
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