JPS55107974A - Manufacturing method of stylus - Google Patents

Manufacturing method of stylus

Info

Publication number
JPS55107974A
JPS55107974A JP1576979A JP1576979A JPS55107974A JP S55107974 A JPS55107974 A JP S55107974A JP 1576979 A JP1576979 A JP 1576979A JP 1576979 A JP1576979 A JP 1576979A JP S55107974 A JPS55107974 A JP S55107974A
Authority
JP
Japan
Prior art keywords
stylus
diamond cut
diamond
blank
dimensional
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
JP1576979A
Other languages
Japanese (ja)
Other versions
JPS6049266B2 (en
Inventor
Tsunetoshi Sekiguchi
Osamu Matsumura
Katsuzo Hirayama
Kazuo Kamemura
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP1576979A priority Critical patent/JPS6049266B2/en
Publication of JPS55107974A publication Critical patent/JPS55107974A/en
Publication of JPS6049266B2 publication Critical patent/JPS6049266B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

PURPOSE: To provide a stylus having three dimensional diamond cut surfaces by diamond cutting the planar or curved surface on the top surface of a stylus blank and stamping the part or entire surface of the diamond cut surfaces with mirror polished die.
CONSTITUTION: After the sectional surface a stylus 4 retained with its cutting allowance is formed in rectangular blank state, the top surface is flat diamond cut. The blank is inserted to dies formed with split dies 5, 6, 7 mirror finished on their surfaces so that the diamond cut surface 9 is placed downside, and urged by a flat punch 8. Thus, a stylus having a diamond cut surface 9 and frustoconical shape in cross section can be formed. According to this method, the stylus having three dimensional cut surfaces which cannot be expressed by the conventional machining process can be manufactured to provide a novel design expression on the stylus.
COPYRIGHT: (C)1980,JPO&Japio
JP1576979A 1979-02-14 1979-02-14 How to make needles Expired JPS6049266B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1576979A JPS6049266B2 (en) 1979-02-14 1979-02-14 How to make needles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1576979A JPS6049266B2 (en) 1979-02-14 1979-02-14 How to make needles

Publications (2)

Publication Number Publication Date
JPS55107974A true JPS55107974A (en) 1980-08-19
JPS6049266B2 JPS6049266B2 (en) 1985-10-31

Family

ID=11897998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1576979A Expired JPS6049266B2 (en) 1979-02-14 1979-02-14 How to make needles

Country Status (1)

Country Link
JP (1) JPS6049266B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879181A (en) * 1981-11-06 1983-05-12 Hamasawa Kogyo:Kk Manufacture of dial plate for wrist watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879181A (en) * 1981-11-06 1983-05-12 Hamasawa Kogyo:Kk Manufacture of dial plate for wrist watch

Also Published As

Publication number Publication date
JPS6049266B2 (en) 1985-10-31

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