WO1998027234A3 - Helical spring with high volumetric efficiency and method for the production thereof - Google Patents

Helical spring with high volumetric efficiency and method for the production thereof Download PDF

Info

Publication number
WO1998027234A3
WO1998027234A3 PCT/DE1997/002939 DE9702939W WO9827234A3 WO 1998027234 A3 WO1998027234 A3 WO 1998027234A3 DE 9702939 W DE9702939 W DE 9702939W WO 9827234 A3 WO9827234 A3 WO 9827234A3
Authority
WO
WIPO (PCT)
Prior art keywords
helical spring
production
volumetric efficiency
high volumetric
relates
Prior art date
Application number
PCT/DE1997/002939
Other languages
German (de)
French (fr)
Other versions
WO1998027234A2 (en
Inventor
Walter Bach
Joachim Heinke
Klaus Wanke
Max Kuespert
Original Assignee
Datec Scherdel Gmbh
Walter Bach
Joachim Heinke
Klaus Wanke
Max Kuespert
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 Datec Scherdel Gmbh, Walter Bach, Joachim Heinke, Klaus Wanke, Max Kuespert filed Critical Datec Scherdel Gmbh
Priority to AU59806/98A priority Critical patent/AU5980698A/en
Priority to DE19781443T priority patent/DE19781443D2/en
Publication of WO1998027234A2 publication Critical patent/WO1998027234A2/en
Publication of WO1998027234A3 publication Critical patent/WO1998027234A3/en

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F35/00—Making springs from wire
    • B21F35/02—Bending or deforming ends of coil springs to special shape
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • 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
    • F16F1/021—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 characterised by their composition, e.g. comprising materials providing for particular spring properties
    • 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
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Abstract

The invention relates to a helical spring with high volumetric efficiency and a method for the production thereof, wherein the helical spring has an extremely high elastic winding gradient.
PCT/DE1997/002939 1996-12-14 1997-12-12 Helical spring with high volumetric efficiency and method for the production thereof WO1998027234A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU59806/98A AU5980698A (en) 1996-12-14 1997-12-12 Helical spring with high volumetric efficiency and method for the production thereof
DE19781443T DE19781443D2 (en) 1996-12-14 1997-12-12 Coil spring with high volume value and process for its manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29622242.9 1996-12-14
DE29622242U DE29622242U1 (en) 1996-12-14 1996-12-14 Wire spring with high volume value

Publications (2)

Publication Number Publication Date
WO1998027234A2 WO1998027234A2 (en) 1998-06-25
WO1998027234A3 true WO1998027234A3 (en) 1998-11-26

Family

ID=8033667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/002939 WO1998027234A2 (en) 1996-12-14 1997-12-12 Helical spring with high volumetric efficiency and method for the production thereof

Country Status (3)

Country Link
AU (1) AU5980698A (en)
DE (2) DE29622242U1 (en)
WO (1) WO1998027234A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29622242U1 (en) * 1996-12-14 1997-05-15 Datec Scherdel Gmbh Wire spring with high volume value
EP3822507B1 (en) * 2019-11-18 2023-02-01 SFS Group International AG Actuating unit for an electric parking brake

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533997A1 (en) * 1967-06-16 1970-02-12 Salin Vladimir Nikolajevic Process for the production of helical compression springs from hardened steel
GB2210299A (en) * 1987-09-25 1989-06-07 Nissan Motor High strength spring
EP0368638A1 (en) * 1988-11-08 1990-05-16 Sumitomo Electric Industries, Ltd. Method of producing a high-strength coil spring
US4938811A (en) * 1988-07-15 1990-07-03 Sumitomo Electric Industries, Ltd. Steel wire for a spring and method for the production thereof
DE4440729A1 (en) * 1994-11-15 1996-05-30 Datec Scherdel Gmbh High strength, relaxation-resistant steel spring
DE29622242U1 (en) * 1996-12-14 1997-05-15 Datec Scherdel Gmbh Wire spring with high volume value

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1533997A1 (en) * 1967-06-16 1970-02-12 Salin Vladimir Nikolajevic Process for the production of helical compression springs from hardened steel
GB2210299A (en) * 1987-09-25 1989-06-07 Nissan Motor High strength spring
US4938811A (en) * 1988-07-15 1990-07-03 Sumitomo Electric Industries, Ltd. Steel wire for a spring and method for the production thereof
EP0368638A1 (en) * 1988-11-08 1990-05-16 Sumitomo Electric Industries, Ltd. Method of producing a high-strength coil spring
DE4440729A1 (en) * 1994-11-15 1996-05-30 Datec Scherdel Gmbh High strength, relaxation-resistant steel spring
DE29622242U1 (en) * 1996-12-14 1997-05-15 Datec Scherdel Gmbh Wire spring with high volume value

Also Published As

Publication number Publication date
WO1998027234A2 (en) 1998-06-25
DE19781443D2 (en) 1999-03-11
DE29622242U1 (en) 1997-05-15
AU5980698A (en) 1998-07-15

Similar Documents

Publication Publication Date Title
EP0637700A3 (en) Carbon fiber reinforced resin coil spring and method for manufacturing the same.
EP0663305A3 (en) Run flat tire.
AU7299796A (en) Cellulases, the genes encoding them and uses thereof
EP0627583A3 (en) Diaphragm valve.
AU2662897A (en) Valve, coupling comprising such a valve and method for assembling the coupling
EP0678723A4 (en) The nizov crossbow.
AU2013495A (en) Photovoltaic element, electrode structure thereof, and process for producing the same
AU6067290A (en) High performance, low cost microprocessor
AU6958994A (en) Beta-stable low-saturate, low trans, all purpose shortening
GB2280909B (en) Method of manufacturing fibre-reinforced engine components, and components manufactured by the method
AU5855498A (en) Monoolefinic c5-mononitriles, method for the production and the use thereof
AU7029498A (en) Deformation element, method for its production and its use
EP0617409A3 (en) Method of manufacturing a thin-film magnetic head, and magnetic head obtainable by means of said method.
WO1999032552A3 (en) Cross-linkable mixtures and a method for the production and utilization thereof
EP0670231A3 (en) Pneumatic spring.
EP0660448A3 (en) Arrangement between two complementary contact-elements, assembled by electrical connection.
AU2001258219A1 (en) A fitting for the use as a means for the gripping of one or more objects
WO1998027234A3 (en) Helical spring with high volumetric efficiency and method for the production thereof
EP0661487A3 (en) Valve.
AU3362197A (en) Method for producing a felt, a felt obtainable in accordance withthe said method, and antiballistic-shaped parts fabricated from the said felt
WO1999010480A3 (en) New tissue-specific calpaines, their production and their use
HUP9900267A3 (en) Electrode with an imposed coil, lamp, and method for manufacturing the electrode
AU1201995A (en) Fixture comprising bryothyte for greening, process for producing the fixture, and use thereof
GB2294048B (en) alpha-1,4-Glucan lyase
EP0617410A3 (en) Method of manufacturing a thin-film magnetic head, and magnetic head obtainable by means of said method.

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AT AU BG BR CA CN CZ DE ES GB HU IL JP PT RU SE TR UA US VN

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

AK Designated states

Kind code of ref document: A3

Designated state(s): AT AU BG BR CA CN CZ DE ES GB HU IL JP PT RU SE TR UA US VN

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
REF Corresponds to

Ref document number: 19781443

Country of ref document: DE

Date of ref document: 19990311

WWE Wipo information: entry into national phase

Ref document number: 19781443

Country of ref document: DE

122 Ep: pct application non-entry in european phase