DE68925731D1 - Verfahren zur Herstellung eines Blattfederblattes - Google Patents

Verfahren zur Herstellung eines Blattfederblattes

Info

Publication number
DE68925731D1
DE68925731D1 DE68925731T DE68925731T DE68925731D1 DE 68925731 D1 DE68925731 D1 DE 68925731D1 DE 68925731 T DE68925731 T DE 68925731T DE 68925731 T DE68925731 T DE 68925731T DE 68925731 D1 DE68925731 D1 DE 68925731D1
Authority
DE
Germany
Prior art keywords
leaf
manufacturing
leaf spring
spring leaf
spring
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.)
Expired - Fee Related
Application number
DE68925731T
Other languages
English (en)
Other versions
DE68925731T2 (de
Inventor
Tadanori Tanaka
Masao Nakamura
Toshifumi Yamada
Katuhyosi Takase
Kazuhiro Muramatsu
Tosikazu Ebata
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.)
Horikiri Spring Manufacturing Co Ltd
Original Assignee
Horikiri Spring Manufacturing 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8202874&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68925731(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Horikiri Spring Manufacturing Co Ltd filed Critical Horikiri Spring Manufacturing Co Ltd
Application granted granted Critical
Publication of DE68925731D1 publication Critical patent/DE68925731D1/de
Publication of DE68925731T2 publication Critical patent/DE68925731T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/902—Metal treatment having portions of differing metallurgical properties or characteristics
    • Y10S148/908—Spring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Springs (AREA)
  • Metal Rolling (AREA)
DE68925731T 1989-12-05 1989-12-05 Verfahren zur Herstellung eines Blattfederblattes Expired - Fee Related DE68925731T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89312679A EP0431224B1 (de) 1989-12-05 1989-12-05 Verfahren zur Herstellung eines Blattfederblattes

Publications (2)

Publication Number Publication Date
DE68925731D1 true DE68925731D1 (de) 1996-03-28
DE68925731T2 DE68925731T2 (de) 1996-09-19

Family

ID=8202874

Family Applications (2)

Application Number Title Priority Date Filing Date
DE68925731T Expired - Fee Related DE68925731T2 (de) 1989-12-05 1989-12-05 Verfahren zur Herstellung eines Blattfederblattes
DE198989312679T Pending DE431224T1 (de) 1989-12-05 1989-12-05 Verfahren zur herstellung eines blattfederblattes.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE198989312679T Pending DE431224T1 (de) 1989-12-05 1989-12-05 Verfahren zur herstellung eines blattfederblattes.

Country Status (3)

Country Link
US (1) US5100482A (de)
EP (1) EP0431224B1 (de)
DE (2) DE68925731T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238511A (en) * 1992-02-04 1993-08-24 Everts En Van Der Weyden Exploitatiemaatschappij Double C-shaped clamp
AU647878B2 (en) * 1992-02-05 1994-03-31 Pandrol Limited Double C-shaped clamp
DE19637968C2 (de) * 1996-09-18 2002-05-16 Univ Freiberg Bergakademie Verfahren zur hochtemperatur-thermomechanischen Herstellung von Federblättern für Blattfedern und/oder Blattfederlenkern
DE19814299A1 (de) * 1998-03-31 1999-10-07 Volkswagen Ag Verfahren zum Bearbeiten eines Werkstücks aus Metall
EP0974676A3 (de) * 1998-07-20 2003-06-04 Firma Muhr und Bender Verfahren zur thermomechanischen Behandlung von Stahl für torsionsbeanspruchte Federelemente
DE10322928B3 (de) * 2003-05-21 2004-10-21 Thyssenkrupp Automotive Ag Verfahren zum Herstellen von Formbauteilen
DE102004038626B3 (de) * 2004-08-09 2006-02-02 Voestalpine Motion Gmbh Verfahren zum Herstellen von gehärteten Bauteilen aus Stahlblech
CN102071299B (zh) * 2010-11-09 2012-10-03 燕山大学 高性能纳米晶弹簧钢板材的制造方法
US9573432B2 (en) 2013-10-01 2017-02-21 Hendrickson Usa, L.L.C. Leaf spring and method of manufacture thereof having sections with different levels of through hardness
JP6497898B2 (ja) * 2014-11-19 2019-04-10 日本発條株式会社 板ばね装置、及び板ばね装置の生産方法
CN112481470B (zh) * 2020-11-28 2022-08-19 山东汽车弹簧厂淄博有限公司 板簧淬火对模样板及应用板簧淬火对模样板的热处理工艺
CN113462874A (zh) * 2021-06-21 2021-10-01 周传盛 一种钢板弹簧自动化生产线
CN114134291B (zh) * 2021-12-01 2023-03-24 南京工程学院 一种提高高强度变截面横置板簧疲劳寿命的方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053960A (de) * 1900-01-01
GB362340A (en) * 1930-07-01 1931-12-01 Walter Williamson An improved machine for producing plate or leaf springs for motor vehicles and the like
US2145989A (en) * 1937-06-18 1939-02-07 Bocjl Corp Method of treating metals
US2608752A (en) * 1947-11-13 1952-09-02 Gen Motors Corp Method of making single leaf springs
US3205556A (en) * 1962-09-10 1965-09-14 Eaton Mfg Co Method for increasing endurance limit of steel articles
US3345727A (en) * 1965-04-20 1967-10-10 Rockwell Standard Co Method of making taper leaf springs
GB1114520A (en) * 1965-12-01 1968-05-22 Ford Motor Co A method of improving the fatigue strength of a spring steel
FR2018018A1 (de) * 1968-09-13 1970-05-29 Ford France
JPS4829443B1 (de) * 1969-01-25 1973-09-10
NL7316770A (en) * 1973-12-07 1975-06-10 Johannes Christianus Laurentiu Making spring blades from reeled strip supply - fed via punch die, heating oven, cutting die and bending die
US4193824A (en) * 1976-08-18 1980-03-18 Egorov Viktor P Method for manufacturing steel spring leaves

Also Published As

Publication number Publication date
EP0431224A1 (de) 1991-06-12
DE431224T1 (de) 1992-02-27
US5100482A (en) 1992-03-31
EP0431224B1 (de) 1996-02-21
DE68925731T2 (de) 1996-09-19

Similar Documents

Publication Publication Date Title
DE69621164D1 (de) Verfahren zur Herstellung einer Halterung eines Türblattes
DE68926313D1 (de) Verfahren zur Herstellung eines Filterelements
DE69027483D1 (de) Verfahren zur Herstellung eines Dünnfilm-Magnetkopfes
DE69030024D1 (de) Verfahren zur Herstellung einer Duplikation von einer Datenbank
DE69126463D1 (de) Verfahren zur Herstellung eines leitenden Elements
DE69522992T2 (de) Verfahren zur Herstellung eines Widerstands
DE69025134T2 (de) Verfahren zur Herstellung eines Biosensors
DE69011215T2 (de) Verfahren zur Herstellung eines umhüllten Transformators.
DE68917836T2 (de) Verfahren zur Herstellung eines Lichtpolarisators.
DE68921704D1 (de) Verfahren zur Herstellung eines Folienkondensators.
ATA157388A (de) Verfahren zur herstellung eines dekorationsspiegels
DE68925731T2 (de) Verfahren zur Herstellung eines Blattfederblattes
DE69018336D1 (de) Verfahren zur Herstellung eines Beugungsgitters.
DE69031712D1 (de) Verfahren zur Herstellung eines Halbleiterbauelementes
DE69024817D1 (de) Verfahren zur herstellung eines punktartig teilweise bedeckten elementes
DE69110109D1 (de) Verfahren zur Herstellung eines Mikrowellen aufnehmenden Heizgerätes.
DE69032124D1 (de) Verfahren zur Herstellung eines Hochfrequenzinduktors
DE68915377T2 (de) Verfahren zur Herstellung eines Wellenleiters.
DE69032074T2 (de) Verfahren zur Herstellung eines Halbleiterbauteils
DE69102173T2 (de) Verfahren zur Herstellung eines Magnetkopfes.
DE69102160T2 (de) Verfahren zur Herstellung eines Magnetkopfes.
DE69026910T2 (de) Verfahren zur Herstellung eines magnetooptischen Speichers
DE59003592D1 (de) Verfahren zur Herstellung eines Körpers aus Silizium.
DE69026621T2 (de) Verfahren zur herstellung von künstlichen blättern
DE69207116D1 (de) Verfahren zur Herstellung eines Schwingkörpers

Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee