JPS5619936A - Manufacture of hinge center pin - Google Patents

Manufacture of hinge center pin

Info

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
Application number
JP9629579A
Other languages
Japanese (ja)
Other versions
JPS5755494B2 (en
Inventor
Toshio Takeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KITAMURA TEKKOSHO KK
Original Assignee
KITAMURA TEKKOSHO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KITAMURA TEKKOSHO KK filed Critical KITAMURA TEKKOSHO KK
Priority to JP9629579A priority Critical patent/JPS5619936A/en
Publication of JPS5619936A publication Critical patent/JPS5619936A/en
Publication of JPS5755494B2 publication Critical patent/JPS5755494B2/ja
Granted legal-status Critical Current

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
JP9629579A 1979-07-27 1979-07-27 Manufacture of hinge center pin Granted JPS5619936A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5594740A (en) * 1979-01-10 1980-07-18 Hitachi Ltd Bonding method for two metallic parts

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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