JPS5725237A - Production of highly adhesive head part screw for ignition plug - Google Patents

Production of highly adhesive head part screw for ignition plug

Info

Publication number
JPS5725237A
JPS5725237A JP9917480A JP9917480A JPS5725237A JP S5725237 A JPS5725237 A JP S5725237A JP 9917480 A JP9917480 A JP 9917480A JP 9917480 A JP9917480 A JP 9917480A JP S5725237 A JPS5725237 A JP S5725237A
Authority
JP
Japan
Prior art keywords
grooves
head part
screw
ignition plug
highly adhesive
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
JP9917480A
Other languages
Japanese (ja)
Other versions
JPS6312699B2 (en
Inventor
Norimi Ichie
Yoshiaki Miwa
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.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug 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 NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Priority to JP9917480A priority Critical patent/JPS5725237A/en
Publication of JPS5725237A publication Critical patent/JPS5725237A/en
Publication of JPS6312699B2 publication Critical patent/JPS6312699B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • B21H3/065—Planetary thread rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Spark Plugs (AREA)

Abstract

PURPOSE:To leave part of a head part screw blank material for ignition plugs as circumferential or spiral grooves and to easily obtain a highly adhesive screw by using a pair of rolling dies provided with parallel or diagonal grooves. CONSTITUTION:The working part 11 of a screw blank material 10 is put into between die surfaces ABCD and A'B'C'D' and a moving die 42 is moved in the direction of an arrow, so that the material is rolled with threads by the thread ridges 41a, 42a of the die surfaces. At this time, a part is not rolled with threads by parallel grooves 41b, 42b and are left as it is, whereby circumferential grooves 21 are formed. Spiral grooves 31 are obtained by rolling with dies provided with diagonal grooves in place of the above-described parallel grooves 41b, 42b. Hence, a head part screw 1 is easily made by the dies 41, 42 and is adhered well to the insulator 2 of an ignition plug P by means of heat resistant cement.
JP9917480A 1980-07-18 1980-07-18 Production of highly adhesive head part screw for ignition plug Granted JPS5725237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9917480A JPS5725237A (en) 1980-07-18 1980-07-18 Production of highly adhesive head part screw for ignition plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9917480A JPS5725237A (en) 1980-07-18 1980-07-18 Production of highly adhesive head part screw for ignition plug

Publications (2)

Publication Number Publication Date
JPS5725237A true JPS5725237A (en) 1982-02-10
JPS6312699B2 JPS6312699B2 (en) 1988-03-22

Family

ID=14240279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9917480A Granted JPS5725237A (en) 1980-07-18 1980-07-18 Production of highly adhesive head part screw for ignition plug

Country Status (1)

Country Link
JP (1) JPS5725237A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148772U (en) * 1983-03-25 1984-10-04 株式会社カインドウエア gauge pattern
JPS59205049A (en) * 1983-04-19 1984-11-20 ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト Position display device for displaying position of changeover bar operated hydraulically in relation to distance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829661A (en) * 1971-08-23 1973-04-19
JPS50104752A (en) * 1974-01-28 1975-08-19
JPS534830A (en) * 1976-07-02 1978-01-17 Mitsubishi Electric Corp Uninterruptible power source

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4829661A (en) * 1971-08-23 1973-04-19
JPS50104752A (en) * 1974-01-28 1975-08-19
JPS534830A (en) * 1976-07-02 1978-01-17 Mitsubishi Electric Corp Uninterruptible power source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59148772U (en) * 1983-03-25 1984-10-04 株式会社カインドウエア gauge pattern
JPS59205049A (en) * 1983-04-19 1984-11-20 ドクトル・インジエニエ−ル・ハ−・ツエ−・エフ・ポルシエ・アクチエンゲゼルシヤフト Position display device for displaying position of changeover bar operated hydraulically in relation to distance

Also Published As

Publication number Publication date
JPS6312699B2 (en) 1988-03-22

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