JPS5619936A - Manufacture of hinge center pin - Google Patents
Manufacture of hinge center pinInfo
- Publication number
- JPS5619936A JPS5619936A JP9629579A JP9629579A JPS5619936A JP S5619936 A JPS5619936 A JP S5619936A JP 9629579 A JP9629579 A JP 9629579A JP 9629579 A JP9629579 A JP 9629579A JP S5619936 A JPS5619936 A JP S5619936A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- punch
- center pin
- subpunch
- external diameter
- 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
- Hinges (AREA)
Abstract
PURPOSE: To obtain a low cost hinge center pin integrated with a ring by putting the ring holded between the projection of a punch and a subpunch of equal diameter and with the desired external diameter in place and pressing the ring into an annular groove with a main die fitted to the subpunch externally and provided with a taper at the bottom of the sliding surface thereof.
CONSTITUTION: A hinge center pin 1 provided with an annular groove 3 at the portion in which a ring 2 is to be pressed fits the hole 6 of a punch 4, and the ring 2 having an internal diameter equal to the external diameter of the pin 1 fits the pin 1 externally, and is placed on the upper surface 5 of a punch 4 provided with a projection 7 having an external diameter about 1mm samller than that of the ring 2, and also, after a subpunch 8 of the external diameter equal to that of said projection 7 has been placed on the upper surface of the ring 2, a main die 10 is pressed to fit the punch 4. After the main die 10 has been disengaged from the punch 4, when the subpunch 8 is elevated, the ring 2 is pressed into the annular groove 3 to be engaged to the center pin 1 freely rotatively. This enables to obtain the hinge center pin which is low in cost and free from missing.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9629579A JPS5619936A (en) | 1979-07-27 | 1979-07-27 | Manufacture of hinge center pin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9629579A JPS5619936A (en) | 1979-07-27 | 1979-07-27 | Manufacture of hinge center pin |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5619936A true JPS5619936A (en) | 1981-02-25 |
JPS5755494B2 JPS5755494B2 (en) | 1982-11-24 |
Family
ID=14161052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9629579A Granted JPS5619936A (en) | 1979-07-27 | 1979-07-27 | Manufacture of hinge center pin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5619936A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5594740A (en) * | 1979-01-10 | 1980-07-18 | Hitachi Ltd | Bonding method for two metallic parts |
-
1979
- 1979-07-27 JP JP9629579A patent/JPS5619936A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5594740A (en) * | 1979-01-10 | 1980-07-18 | Hitachi Ltd | Bonding method for two metallic parts |
Also Published As
Publication number | Publication date |
---|---|
JPS5755494B2 (en) | 1982-11-24 |
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