JPS57171524A - Formation for jumping disc - Google Patents
Formation for jumping discInfo
- Publication number
- JPS57171524A JPS57171524A JP5710981A JP5710981A JPS57171524A JP S57171524 A JPS57171524 A JP S57171524A JP 5710981 A JP5710981 A JP 5710981A JP 5710981 A JP5710981 A JP 5710981A JP S57171524 A JPS57171524 A JP S57171524A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- disc
- formation
- jumping
- hemispheric
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE:To manufacture a jumping disc with narrow hysteresis for rapid inversion and return at a set temperature, by providing two types of hemispheric faces in the tip shape as a molding punch at the center and the external circumference. CONSTITUTION:A punch is combined with two types of hemispheric faces at the center and the external circumference. A dish-shaped jumping disc with narrow hysteresis of rapid inversion and return at a set temperature can be manufactured without distortion by pressing and molding bimetal through the use of the punch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5710981A JPS57171524A (en) | 1981-04-17 | 1981-04-17 | Formation for jumping disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5710981A JPS57171524A (en) | 1981-04-17 | 1981-04-17 | Formation for jumping disc |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57171524A true JPS57171524A (en) | 1982-10-22 |
Family
ID=13046345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5710981A Pending JPS57171524A (en) | 1981-04-17 | 1981-04-17 | Formation for jumping disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57171524A (en) |
-
1981
- 1981-04-17 JP JP5710981A patent/JPS57171524A/en active Pending
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