PT72729B - Process for the manufacture of double cone shaped helical springs and device therefor - Google Patents

Process for the manufacture of double cone shaped helical springs and device therefor

Info

Publication number
PT72729B
PT72729B PT72729A PT7272981A PT72729B PT 72729 B PT72729 B PT 72729B PT 72729 A PT72729 A PT 72729A PT 7272981 A PT7272981 A PT 7272981A PT 72729 B PT72729 B PT 72729B
Authority
PT
Portugal
Prior art keywords
manufacture
cone shaped
device therefor
helical springs
double cone
Prior art date
Application number
PT72729A
Other languages
English (en)
Other versions
PT72729A (en
Original Assignee
Hoesch Estel Werke Ag
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 Hoesch Estel Werke Ag filed Critical Hoesch Estel Werke Ag
Publication of PT72729A publication Critical patent/PT72729A/pt
Publication of PT72729B publication Critical patent/PT72729B/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/08—Wound springs with turns lying in mainly conical surfaces, i.e. characterised by varying diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F3/00—Coiling wire into particular forms
    • B21F3/10—Coiling wire into particular forms to spirals other than flat, e.g. conical

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wire Processing (AREA)
  • Springs (AREA)
  • Heat Treatment Of Articles (AREA)
PT72729A 1980-06-03 1981-03-25 Process for the manufacture of double cone shaped helical springs and device therefor PT72729B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3020958A DE3020958C2 (de) 1980-06-03 1980-06-03 Verfahren und Vorrichtung zur Herstellung von Doppelkegelfedern oder dergleichen

Publications (2)

Publication Number Publication Date
PT72729A PT72729A (en) 1981-04-01
PT72729B true PT72729B (en) 1982-03-23

Family

ID=6103817

Family Applications (1)

Application Number Title Priority Date Filing Date
PT72729A PT72729B (en) 1980-06-03 1981-03-25 Process for the manufacture of double cone shaped helical springs and device therefor

Country Status (18)

Country Link
US (1) US4424695A (pt)
JP (1) JPS5711743A (pt)
KR (1) KR880001654B1 (pt)
AR (1) AR227914A1 (pt)
AT (1) AT376590B (pt)
AU (1) AU547132B2 (pt)
BR (1) BR8006946A (pt)
CA (1) CA1155036A (pt)
DE (1) DE3020958C2 (pt)
ES (2) ES8106423A1 (pt)
FR (1) FR2483274A1 (pt)
GB (1) GB2076714B (pt)
IT (1) IT1170867B (pt)
MX (1) MX155722A (pt)
NL (1) NL183500C (pt)
PT (1) PT72729B (pt)
SE (1) SE441900B (pt)
ZA (1) ZA812455B (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59199135A (ja) * 1983-04-26 1984-11-12 Morita Tekkosho:Kk コイルばねのピツグテイル成形方法およびこれを実施するための装置
JP2571084B2 (ja) * 1987-12-26 1997-01-16 株式会社モリタアンドカンパニー 複円錐スプリングの製造方法および装置
US4863367A (en) * 1988-04-14 1989-09-05 Morton Thiokol, Inc. Continuous reinforcement method for flexible bearing laminate
US4945744A (en) * 1988-07-26 1990-08-07 Rockwell International Suspension Systems Company Method and apparatus for forming a barrel coil spring
JP2690704B2 (ja) * 1994-12-22 1997-12-17 株式会社板屋製作所 線材成形装置
DE19528294C1 (de) * 1995-08-02 1996-10-24 Krupp Ag Hoesch Krupp Verfahren zum Herstellen von im unbelasteten Zustand doppelt konisch geformten Schraubendruckfedern, sowie Vorrichtung zur Durchführung des Verfahrens
US5632086A (en) * 1995-08-31 1997-05-27 Helwig; Gary L. Jewelry wire bender
JP3026793B2 (ja) * 1998-08-21 2000-03-27 株式会社板屋製作所 スプリング製造装置及びツール選択装置
JP2939472B1 (ja) * 1998-08-21 1999-08-25 株式会社板屋製作所 スプリング製造装置
US7198068B2 (en) * 2003-08-28 2007-04-03 Meritor Suspension Systems Co. Cassette pigtailing machine for a coil spring
US9161634B2 (en) * 2007-10-29 2015-10-20 Dreamwell, Ltd. Asymmetrical combined cylindrical and conical springs
KR100952844B1 (ko) * 2007-12-20 2010-04-15 대원강업주식회사 배럴형 코일 스프링의 제작 장치 및 방법
US8912472B1 (en) * 2010-07-19 2014-12-16 Barnes Group Inc. Induction heating of springs
CA2817294C (en) 2010-11-09 2019-02-12 Dreamwell, Ltd. Spring coils for innerspring assemblies and methods of manufacture
JP6199139B2 (ja) 2013-09-26 2017-09-20 中央発條株式会社 コイルばねの成形方法及び成形装置
US11371575B1 (en) 2020-12-07 2022-06-28 Nhk Spring Co., Ltd. Coil spring
US11940031B2 (en) 2022-03-24 2024-03-26 Nhk Spring Co., Ltd. Coil spring
US11821485B1 (en) 2022-06-01 2023-11-21 Nhk Spring Co., Ltd. Coil spring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR320455A (fr) * 1902-04-16 1902-12-11 Nadalon Edmond Un procédé de fabrication d'objets de formes diverses en fil de métal enroulé en hélice par pression extérieure
DE350427C (de) * 1920-06-05 1922-03-18 Max Thiele Vorrichtung zum Zuspitzen der Enden von Schraubenfedern durch Rollen der Enden zwischen im Abstand voneinander allmaehlich abnehmenden Druckflaechen
US1892502A (en) * 1931-04-18 1932-12-27 American Cable Co Inc Wire coil forming means
DE2225890A1 (de) * 1972-05-27 1973-12-13 Roechling Burbach Gmbh Stahl Verfahren und vorrichtung zum herstellen von doppelkegelstumpf-federn
DE2330208A1 (de) * 1973-06-14 1975-01-02 Roechling Burbach Gmbh Stahl Verfahren und vorrichtung zum herstellen von beidseitig kegelstumpf-, tonnen- oder kugelfoermigen schraubenfedern

Also Published As

Publication number Publication date
CA1155036A (en) 1983-10-11
SE441900B (sv) 1985-11-18
ES495233A0 (es) 1981-06-16
FR2483274B1 (pt) 1985-03-29
US4424695A (en) 1984-01-10
KR830005925A (ko) 1983-09-14
GB2076714A (en) 1981-12-09
PT72729A (en) 1981-04-01
IT1170867B (it) 1987-06-03
FR2483274A1 (fr) 1981-12-04
AR227914A1 (es) 1982-12-30
IT8148187A0 (it) 1981-04-02
KR880001654B1 (ko) 1988-09-05
ES497314A0 (es) 1981-10-16
NL8101309A (nl) 1982-01-04
NL183500B (nl) 1988-06-16
MX155722A (es) 1988-04-20
AU547132B2 (en) 1985-10-10
SE8101602L (sv) 1981-12-04
ATA115481A (de) 1984-05-15
DE3020958C2 (de) 1985-09-26
AU7120781A (en) 1981-12-10
NL183500C (nl) 1988-11-16
GB2076714B (en) 1983-11-02
AT376590B (de) 1984-12-10
ES8106423A1 (es) 1981-06-16
ES8200247A1 (es) 1981-10-16
BR8006946A (pt) 1982-06-22
ZA812455B (en) 1982-04-28
JPS5711743A (en) 1982-01-21
DE3020958A1 (de) 1981-12-10

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