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FR2327448B1 - - Google Patents

Info

Publication number
FR2327448B1
FR2327448B1 FR7530642A FR7530642A FR2327448B1 FR 2327448 B1 FR2327448 B1 FR 2327448B1 FR 7530642 A FR7530642 A FR 7530642A FR 7530642 A FR7530642 A FR 7530642A FR 2327448 B1 FR2327448 B1 FR 2327448B1
Authority
FR
France
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
Application number
FR7530642A
Other languages
French (fr)
Other versions
FR2327448A1 (en
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.)
Ressorts du Nord SA
Original Assignee
Ressorts du Nord SA
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 Ressorts du Nord SA filed Critical Ressorts du Nord SA
Priority to FR7530642A priority Critical patent/FR2327448A1/en
Priority to DE2707567A priority patent/DE2707567C2/en
Publication of FR2327448A1 publication Critical patent/FR2327448A1/en
Application granted granted Critical
Publication of FR2327448B1 publication Critical patent/FR2327448B1/fr
Granted legal-status Critical Current

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
    • B21F3/02—Coiling wire into particular forms helically
    • B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • 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
    • F16F1/042—Wound springs characterised by the cross-section of the wire

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)
FR7530642A 1975-10-07 1975-10-07 Variable compression rate helical spring - has wire of gradually changing cross section varying from square at ends to round at centre Granted FR2327448A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7530642A FR2327448A1 (en) 1975-10-07 1975-10-07 Variable compression rate helical spring - has wire of gradually changing cross section varying from square at ends to round at centre
DE2707567A DE2707567C2 (en) 1975-10-07 1977-02-22 Helical compression spring and device for producing such a helical compression spring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7530642A FR2327448A1 (en) 1975-10-07 1975-10-07 Variable compression rate helical spring - has wire of gradually changing cross section varying from square at ends to round at centre
DE2707567A DE2707567C2 (en) 1975-10-07 1977-02-22 Helical compression spring and device for producing such a helical compression spring

Publications (2)

Publication Number Publication Date
FR2327448A1 FR2327448A1 (en) 1977-05-06
FR2327448B1 true FR2327448B1 (en) 1981-04-10

Family

ID=25771643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530642A Granted FR2327448A1 (en) 1975-10-07 1975-10-07 Variable compression rate helical spring - has wire of gradually changing cross section varying from square at ends to round at centre

Country Status (2)

Country Link
DE (1) DE2707567C2 (en)
FR (1) FR2327448A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8522888U1 (en) * 1985-08-08 1985-10-10 Fichtel & Sachs Ag, 8720 Schweinfurt Progressive compression spring in clutch disks
DE4321337A1 (en) * 1993-06-26 1995-01-05 Langen & Sondermann Gmbh & Co Bogie spring and method for producing such and device for performing this method
DE102012014887B4 (en) 2012-07-26 2022-05-19 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Pneumatically actuated brake cylinder of a commercial vehicle with a helical spring

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US380651A (en) * 1888-04-03 waldoef
US1523225A (en) * 1922-10-18 1925-01-13 Alan N Lukens Helical spring

Also Published As

Publication number Publication date
DE2707567A1 (en) 1978-08-24
DE2707567C2 (en) 1982-06-09
FR2327448A1 (en) 1977-05-06

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse