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DE1231967B - Glass fiber synthetic resin spring, especially for motor vehicles - Google Patents

Glass fiber synthetic resin spring, especially for motor vehicles

Info

Publication number
DE1231967B
DE1231967B DE1963V0024116 DEV0024116A DE1231967B DE 1231967 B DE1231967 B DE 1231967B DE 1963V0024116 DE1963V0024116 DE 1963V0024116 DE V0024116 A DEV0024116 A DE V0024116A DE 1231967 B DE1231967 B DE 1231967B
Authority
DE
Germany
Prior art keywords
glass fiber
spring
synthetic resin
fiberglass
fiber strands
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.)
Pending
Application number
DE1963V0024116
Other languages
German (de)
Inventor
Gottfried Wolf
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.)
Sachsenring Automobilwerke VEB
Original Assignee
Sachsenring Automobilwerke VEB
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 Sachsenring Automobilwerke VEB filed Critical Sachsenring Automobilwerke VEB
Priority to DE1963V0024116 priority Critical patent/DE1231967B/en
Publication of DE1231967B publication Critical patent/DE1231967B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0003—Producing profiled members, e.g. beams
    • B29D99/0007—Producing profiled members, e.g. beams having a variable cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/347—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation combined with compressing after the winding of lay-ups having a non-circular cross-section, e.g. flat spiral windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/56—Tensioning reinforcements before or during shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf 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
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
    • F16F1/368—Leaf springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)
  • Vehicle Body Suspensions (AREA)

Description

Glasfaser-Kunstharzfeder, insbesondere für Kraftfahrzeuge Die Erfindung bezieht sich auf eine Einzelblattfeder aus glasfaserverstärktem Kunststoff, bei dem vorgetränkte Glasfaserstränge in Paralleischichtung durch Aushärten des Kunststoffes zu einem Federkörper vereinigt sind, insbesondere für Kraftfahrzeuge zur Abfederung ~ der Fahrzeug-Vorder- und Hinterachse.Glass fiber synthetic resin spring, particularly for automobiles. The invention refers to a single leaf spring made of glass fiber reinforced plastic, at the pre-soaked fiberglass strands in parallel layers through hardening of the plastic are combined into a spring body, especially for motor vehicles for cushioning ~ the vehicle's front and rear axles.

Es werden im Straßenfahrzeugbau Stahlblattfedern, Drehstabfedern, Schraubenfedern, Gummifedern und hydropneumatische Federsysteme angewandt. Die Glasfaser-Kunstharzfeder ist als untergeordnetes Federelement für geringe Lastwechsel bzw. für niedere Beanspruchungen bekannt; so z. B. im Flugzeugbau als Federbein und unter anderem als Polstermöbelfeder. Der Wirkungsgrad von Glasfaser-Kunstharzfedern wird durch die Anwendung von vorimprägnierten Glasfaserrovings noch verbessert. Steel leaf springs, torsion bar springs, Coil springs, rubber springs and hydropneumatic spring systems are used. The fiberglass synthetic resin spring is used as a subordinate spring element for low load changes or for low loads known; so z. B. in aircraft construction as a strut and, among other things, as an upholstery spring. The efficiency of fiberglass synthetic resin springs is achieved through the use of pre-impregnated Fiberglass rovings even better.

Die üblichen im Kraftfahrzeugbau benutzten Stahlblattfedern haben den Nachteil, daß sie ein relativ hohes Gewicht haben. Außerdem bedürfen sie ständig einer guten Wartung, da sie korrosionsempfindlich sind und die Geräuschbildung durch Reibung der einzelnen Federblätter untereinander durch Schmierung oder Zwischenlagen vermieden werden soll. Darüber hinaus ergibt sich bei der Stahlblattfeder ein ungünstiger Einfluß ihrer Reibungsdämpfung auf die Federeigenschaften. Die Reibungsdämpfung nimmt mit dem Grad der Reibung zwischen den Federblättern stark zu, womit eine Verhärtung der Feder verbunden ist. Geht bei einer Stahlblaftfeder ein Federblatt zu Bruch, dies erfolgt meist plötzlich, so wird das Fahrverhalten des Fahrzeuges sehr ungünstig beeinflußt. Have the usual steel leaf springs used in automotive engineering the disadvantage that they are relatively heavy. In addition, they constantly need good maintenance, as they are sensitive to corrosion and generate noise Friction between the individual spring leaves due to lubrication or intermediate layers should be avoided. In addition, the steel leaf spring has an unfavorable one Influence of their friction damping on the spring properties. The friction damping increases sharply with the degree of friction between the spring leaves, resulting in hardening the spring is connected. If a leaf spring breaks on a steel leaf spring, this usually happens suddenly, so the driving behavior of the vehicle becomes very unfavorable influenced.

Zur Beseitigung dieser Mängel der Stahlblattfeder liegt der Erfindung die Aufgabe zugrunde, eine Einblattfeder zu schaffen, die folgende Förderungen erfüllt: niedriges Gewicht, dadurch Verbesserung des Leistungsgewichtes des Fahrzeuges; Wartungsfreiheit und Korrosionsfestigkeit; Verhinderung des plötzlichen Bruchs der Feder; Erhöhung der Dauerbiegewechselfestigkeit gegenüber der Stahlblattfeder; Gewährung der Progressivität der Feder ohne Zusatzelemente, um dadurch die Möglichkeit einer optimalen Lastanpassung durch konstante Eigenschwingungszahl des Federungssystems bei belastetem und unbelastetem Fahrzeug zu erreichen; leichtere Montage der Feder, so daß eventuell eine Selbsthilfe mit einer Reservefeder möglich ist; Wegfall der schwingungstechnisch ungünstigen Reibungsdämpfung, dadurch bessere Dämpfung der hochfrequenten Schwingungen. The invention is aimed at eliminating these shortcomings in the steel leaf spring the task is to create a single leaf spring that fulfills the following requirements: low weight, thereby improving the power-to-weight ratio of the vehicle; Maintenance-free and corrosion resistance; Prevention of sudden breakage of the spring; increase the fatigue strength against the steel leaf spring; Granting of progressiveness the spring without additional elements, thereby providing the possibility of an optimal load adjustment due to the constant natural frequency of the suspension system with loaded and unloaded Vehicle to reach; easier assembly of the spring, so that possibly a self-help is possible with a reserve spring; Elimination of the unfavorable vibrations Friction damping, thereby better damping of high-frequency vibrations.

Die Aufgabe wird erfindungsgemäß wie folgt ge- löst: Die erforderliche Dauerfestigkeit von etwa fünf Millionen Lastwechsel wird durch das Strecken der äußeren durchgehenden Glasfaserstränge während der Aushärtung des Kunstharzes erreicht. Das Strecken der Glasfasern bewirkt, daß die Glasfaserstränge ausgerichtet werden und dadurch jeder Elementarfaden zum Tragen mit herangezogen wird. Um die einem Biegeträger mit annähernd gleicher Festigkeit entsprechende Federform zu erhalten, werden einzelne, immer kürzer werdende, mit Kunstharz getränkte Glasfaserstränge zwischen den äußeren, durchgehenden, mit Kunstharz getränkten Glasfasersträngen angeordnet. Bei den Federn, die am Federende Aufhängeösen erhalten sollen, werden Buchsen in den Federkörper eingebracht, um welche die oberen und unteren Glasfaserstränge mehrmals gelegt werden, damit ein einheitlicher und auch festigkeitsmäßig günstiger Verband erreicht wird. According to the invention, the object is as follows solves: The required Fatigue strength of around five million load cycles is achieved by stretching the outer continuous fiberglass strands reached during the curing of the synthetic resin. The stretching of the glass fibers causes the glass fiber strands to become aligned and thereby every elementary thread is used for carrying. To the one To obtain flexible beams with approximately the same strength, corresponding spring shape, become individual, increasingly shorter, fiberglass strands soaked with synthetic resin between the outer, continuous fiberglass strands impregnated with synthetic resin arranged. For the springs that are to be provided with hanging loops at the end of the spring Bushings inserted in the spring body around which the upper and lower glass fiber strands be laid several times, so that a uniform and also more favorable in terms of strength Association is achieved.

An Hand der Zeichnungen ist in Ausführungsbeispielen die Erfindung beschrieben. Es zeigt Fig. 1 einen Längsschnitt durch eine Glasfaser-Kunstharzfeder mit freier Auflage, Fig.2 einen Längsschnitt durch eine Glasfaser-Kunstharzfeder mit Aufhängeösen. The invention is illustrated in exemplary embodiments with reference to the drawings described. 1 shows a longitudinal section through a glass fiber synthetic resin spring with free support, Figure 2 is a longitudinal section through a fiberglass synthetic resin spring with hanging loops.

Die dargestellten Ausführungsbeispiele in Fig. 1 und 2 veranschaulichen den erfindungsgemäßen Aufbau einer Glasfaser-Kunstharzfeder. Der kompakte Federkörper 1 besteht aus den Glasfasersträngen 2, 3, 4, die mit Kunstharz getränkt sind. Die an der Ober- und Unterseite angeordneten Glasfaserstränge 2, 3 sind durchgehend angeordnet, während einzelne, entsprechend der Federform unterschiedliche Längen aufweisende, mit Kunstharz getränkte Glasfaserstränge 4 zwischen den oberen und unteren Glasfasersträngen 2, 3 liegen. The exemplary embodiments shown in FIGS. 1 and 2 illustrate the structure of a fiberglass synthetic resin spring according to the invention. The compact spring body 1 consists of the glass fiber strands 2, 3, 4, which are impregnated with synthetic resin. the Glass fiber strands 2, 3 arranged on the top and bottom are continuous arranged, while individual, according to the spring shape of different lengths having, soaked with synthetic resin fiberglass strands 4 between the upper and lower fiberglass strands 2, 3 lie.

Die oberen und unteren Glasfaserstränge 2, 3 werden bei der Anfertigung der Glasfaser-Kunstharzfeder, während der Aushärtung des Kunstharzes, mit einer Spannvorrichtung gestreckt. Zur Erreichung der entsprechenden Form der Glasfaser-Kunstharzfeder werden bei deren Herstellung in bekannter Weise Formen verwendet. Die Glasfaser-Kunstharzfeder kann ohne oder mit Aufhängeösen 5 ausgeführt werden. The upper and lower fiberglass strands 2, 3 are used during manufacture the fiberglass synthetic resin spring, during the curing of the synthetic resin, with a Jig stretched. To achieve the appropriate shape The fiberglass synthetic resin springs are molded in a known manner during their manufacture used. The fiberglass synthetic resin spring can be designed with or without suspension eyelets 5 will.

Bei der Herstellung der Glasfaser-Kunstharzfeder ohne Aufhängeösen 5 werden die Glasfaserstränge nach bekannten Verfahren durch ein Kunstharzbad geführt, getränkt und in die Form eingelegt; während des Aushärtens des Kunstharzes werden die oberen und unteren Glasfaserstränge 2, 3 gestreckt, nach dem Aushärten des Kunstharzes aus der Form genommen und danach die Federenden beschnitten. When manufacturing the fiberglass synthetic resin spring without hanging loops 5 the glass fiber strands are passed through a synthetic resin bath using known methods, soaked and placed in the mold; during the curing of the resin the upper and lower fiberglass strands 2, 3 stretched after the resin has hardened taken out of the mold and then trimmed the spring ends.

Anders sind die Glasfaser-Kunstharzfedern mit eingearbeiteten Aufhängeösen 5 ausgebildet. Bei diesen werden die oberen und unteren Glasfaserstränge 2, 3 nach dem Tränken mit Kunstharz endlos um die in den Aufhängeösen 5 befindlichen Buchsen 6 gelegt. Die Glasfaserstränge4 sind auch bei dieser Ausführung in der vorher beschriebenen Weise zwischen den oberen und unteren Glasfasersträngen 2, 3 angeordnet. The glass fiber synthetic resin springs with integrated hanging loops are different 5 trained. In these, the upper and lower glass fiber strands 2, 3 are after soaking with synthetic resin endlessly around the sockets in the suspension eyes 5 6 laid. The glass fiber strands4 are also in this embodiment in the one previously described Way between the upper and lower fiberglass strands 2, 3 arranged.

Die Aufhängung der Feder an den Aufhängeösen 5 erfolgt mittels der ebenfalls mit dem Federkörper 1 fest verbundenen Buchsen 6. The suspension of the spring on the suspension eyes 5 is carried out by means of the Bushings 6 also firmly connected to the spring body 1.

Claims (2)

Patentansprüche: 1. Einzelblattfeder aus glasfaserverstärktem Kunststoff, bei dem vorgetränkte Glasfaserstränge in Paralleischichtung durch Aushärten des Kunststoffes zu einem Federkörper vereinigt sind, dadurch gekennzeichnet, daß die an der Ober- und Unterseite des Blattes liegenden Glasfaserstränge (2, 3) während des Aushärtens gestreckt sind. Claims: 1. Single leaf spring made of glass fiber reinforced plastic, with the pre-soaked glass fiber strands in parallel layers by hardening the Plastic are combined to form a spring body, characterized in that the on the top and bottom of the sheet lying glass fiber strands (2, 3) during of curing are stretched. 2. Feder nach Anspruch 1, die an den Enden mit durch eingesetzte Buchsen gebildeten Aufhängeösen versehen ist, dadurch gekennzeichnet, daß die äußeren Glasfaserstränge (2, 3) um die Buchsen (6) endlos herumgewickelt sind. 2. Spring according to claim 1, which is inserted at the ends with through Sockets formed suspension eyes is provided, characterized in that the outer Glass fiber strands (2, 3) are wound endlessly around the sockets (6). In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 939 733; deutsche Auslegeschriften Nr. 1 043 100, 1092780; schweizerische Patentschrift Nr. 187 191; britische Patentschriften Nr. 785 404, 925 387; Europäische Technische Informationen, Jg. 1958, S. 134; Modern Plastics, Bd. 37 (1960), H. 8, S, 56. Documents considered: German Patent No. 939 733; German Auslegeschriften No. 1 043 100, 1092780; Swiss patent specification No. 187 191; British Patent Nos. 785 404, 925 387; European technical Informations, Jg. 1958, p. 134; Modern Plastics, Vol. 37 (1960), H. 8, p. 56.
DE1963V0024116 1963-05-30 1963-05-30 Glass fiber synthetic resin spring, especially for motor vehicles Pending DE1231967B (en)

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Application Number Priority Date Filing Date Title
DE1963V0024116 DE1231967B (en) 1963-05-30 1963-05-30 Glass fiber synthetic resin spring, especially for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1963V0024116 DE1231967B (en) 1963-05-30 1963-05-30 Glass fiber synthetic resin spring, especially for motor vehicles

Publications (1)

Publication Number Publication Date
DE1231967B true DE1231967B (en) 1967-01-05

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Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3968958A (en) * 1972-11-30 1976-07-13 Edgewater Corporation Composite material springs and manufacture
DE2746998A1 (en) * 1977-10-19 1979-04-26 Fujii Haruyuki Unidirectionally fibre reinforced resin products - of good mechanical properties, obtd. by holding fibres under tension during curing
DE2907528A1 (en) * 1978-02-27 1979-09-06 Budd Co ENERGY ATTENUATOR AND METHOD FOR MANUFACTURING IT
EP0005916A1 (en) * 1978-05-26 1979-12-12 GKN Group Services Limited Spring manufacture
DE3039427A1 (en) * 1980-10-18 1982-04-29 Metallbau Höse, Inh. Karl Heinz Höse, 3560 Biedenkopf Flat roof verge coping retaining plate - has resiliently supported clamping shank on spacer hinged into end recesses
EP0040531A3 (en) * 1980-05-16 1982-06-02 Ford Motor Company Limited Leaf spring and leaf therefor
DE3150479A1 (en) * 1980-12-22 1982-08-19 Nhk Spring Co., Ltd., Yokohama, Kanagawa LEAF SPRING
DE3222079A1 (en) * 1981-06-15 1983-04-07 The Budd Co., 48084 Troy, Mich. LEAF SPRING, METHOD FOR THE PRODUCTION THEREOF AND DEVICE FOR CARRYING OUT THE METHOD
DE3238099A1 (en) * 1981-12-18 1983-07-14 Messerschmitt-Bölkow-Blohm GmbH, 8000 München BENDING SPRING MADE OF FIBER REINFORCED PLASTIC AND PRESSING TOOL FOR THEIR PRODUCTION
WO1984001413A1 (en) * 1982-10-01 1984-04-12 Isosport Verbundbauteile Plastic leaf spring and process for its production
DE3243434A1 (en) * 1982-11-24 1984-05-24 Audi Nsu Auto Union Ag, 7107 Neckarsulm Independent wheel suspension
EP0032051A3 (en) * 1980-01-04 1984-06-20 Ford Motor Company Limited Structural component and a method for its manufacture
EP0134617A1 (en) * 1983-09-08 1985-03-20 Shell Internationale Researchmaatschappij B.V. Fibre-reinforced automotive spring
WO1985003987A1 (en) * 1984-03-02 1985-09-12 Isosport Verbundbauteile Ges. M.B.H. A process for producing a plastic leaf spring, as well as a plastic leaf spring appropriately manufactured according to this process
FR2563778A1 (en) * 1984-05-07 1985-11-08 Renault Vehicules Ind Device for fastening the ends of a leaf spring made of composite material
DE3528183A1 (en) * 1984-08-24 1986-03-06 A.O. Smith Corp., Milwaukee, Wis. LEAF SPRING MADE OF GLASS FIBER REINFORCED RESIN
DE3527917A1 (en) * 1985-08-03 1987-02-12 Boehler Ag SPRING LEAF AND METHOD FOR PRODUCING THE SAME
FR2586074A1 (en) * 1985-08-07 1987-02-13 Bertin & Cie DEVICE FOR RECESSING AN ELASTIC BLADE OF COMPOSITE MATERIAL WORKING IN BENDING
DE4091379T (en) * 1989-08-25 1992-08-27
DE9318739U1 (en) * 1993-12-08 1994-02-17 Grzegorzewski, Andrzej, Dr.-Ing., 28832 Achim Holder rod
EP0660005A1 (en) * 1993-12-24 1995-06-28 Société Anonyme dite: REGIE NATIONALE DES USINES RENAULT Composite material leaf spring for motor vehicle suspension
WO2011103857A1 (en) * 2010-02-26 2011-09-01 Ifc Composite Gmbh Leaf spring made of a fiber composite material having integrated bearing holes and method for producing said leaf spring
DE102010050065A1 (en) 2010-10-29 2012-05-03 Ifc Composite Gmbh Fiber composite plate spring, has fiber layers moistened with resin and arranged one above other such that layers with axial end form axial end of spring and do not obtain another axial end of spring with another axial end of layers
EP3311041A1 (en) * 2015-06-22 2018-04-25 Hendrickson USA, L.L.C. Composite suspension components
US10046485B2 (en) 2012-08-27 2018-08-14 Ifc Composite Gmbh Method for simultaneous production of a plurality of leaf springs from a fiber composite material
DE102020118444A1 (en) 2020-07-13 2022-01-13 Süddeutsche Gelenkscheibenfabrik Gesellschaft mit beschränkter Haftung & Co. KG. Suspension device for a vehicle or a vehicle trailer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH187191A (en) * 1935-02-27 1936-10-31 Krupp Ag Layered leaf spring.
DE939733C (en) * 1953-05-09 1956-03-01 Daimler Benz Ag Leaf suspension for motor vehicles
GB785404A (en) * 1954-12-27 1957-10-30 Maschf Augsburg Nuernberg Ag Improvements in laminated springs
DE1043100B (en) * 1954-09-10 1958-11-06 Daimler Benz Ag Leaf spring composed of individual leaves
DE1092780B (en) * 1953-06-01 1960-11-10 Heinrich Schomaecker & Co Eye break protection for a leaf spring arranged in the longitudinal direction of the vehicle
GB925387A (en) * 1960-04-20 1963-05-08 Rockwell Standard Co Tapered spring leaf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH187191A (en) * 1935-02-27 1936-10-31 Krupp Ag Layered leaf spring.
DE939733C (en) * 1953-05-09 1956-03-01 Daimler Benz Ag Leaf suspension for motor vehicles
DE1092780B (en) * 1953-06-01 1960-11-10 Heinrich Schomaecker & Co Eye break protection for a leaf spring arranged in the longitudinal direction of the vehicle
DE1043100B (en) * 1954-09-10 1958-11-06 Daimler Benz Ag Leaf spring composed of individual leaves
GB785404A (en) * 1954-12-27 1957-10-30 Maschf Augsburg Nuernberg Ag Improvements in laminated springs
GB925387A (en) * 1960-04-20 1963-05-08 Rockwell Standard Co Tapered spring leaf

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3968958A (en) * 1972-11-30 1976-07-13 Edgewater Corporation Composite material springs and manufacture
DE2746998A1 (en) * 1977-10-19 1979-04-26 Fujii Haruyuki Unidirectionally fibre reinforced resin products - of good mechanical properties, obtd. by holding fibres under tension during curing
DE2907528A1 (en) * 1978-02-27 1979-09-06 Budd Co ENERGY ATTENUATOR AND METHOD FOR MANUFACTURING IT
EP0005916A1 (en) * 1978-05-26 1979-12-12 GKN Group Services Limited Spring manufacture
EP0032051A3 (en) * 1980-01-04 1984-06-20 Ford Motor Company Limited Structural component and a method for its manufacture
EP0040531A3 (en) * 1980-05-16 1982-06-02 Ford Motor Company Limited Leaf spring and leaf therefor
DE3039427A1 (en) * 1980-10-18 1982-04-29 Metallbau Höse, Inh. Karl Heinz Höse, 3560 Biedenkopf Flat roof verge coping retaining plate - has resiliently supported clamping shank on spacer hinged into end recesses
DE3150479A1 (en) * 1980-12-22 1982-08-19 Nhk Spring Co., Ltd., Yokohama, Kanagawa LEAF SPRING
US4546958A (en) * 1980-12-22 1985-10-15 Nhk Spring Co., Ltd. Leaf spring
DE3222079A1 (en) * 1981-06-15 1983-04-07 The Budd Co., 48084 Troy, Mich. LEAF SPRING, METHOD FOR THE PRODUCTION THEREOF AND DEVICE FOR CARRYING OUT THE METHOD
DE3238099A1 (en) * 1981-12-18 1983-07-14 Messerschmitt-Bölkow-Blohm GmbH, 8000 München BENDING SPRING MADE OF FIBER REINFORCED PLASTIC AND PRESSING TOOL FOR THEIR PRODUCTION
DE3238099C2 (en) * 1981-12-18 1983-11-17 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Spiral spring made of fiber-reinforced plastic and pressing tool for their manufacture
WO1984001413A1 (en) * 1982-10-01 1984-04-12 Isosport Verbundbauteile Plastic leaf spring and process for its production
DE3243434A1 (en) * 1982-11-24 1984-05-24 Audi Nsu Auto Union Ag, 7107 Neckarsulm Independent wheel suspension
EP0134617A1 (en) * 1983-09-08 1985-03-20 Shell Internationale Researchmaatschappij B.V. Fibre-reinforced automotive spring
WO1985003987A1 (en) * 1984-03-02 1985-09-12 Isosport Verbundbauteile Ges. M.B.H. A process for producing a plastic leaf spring, as well as a plastic leaf spring appropriately manufactured according to this process
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US9194451B2 (en) 2010-02-26 2015-11-24 Ifc Composite Gmbh Method for making leaf springs of a fiber composite material having integrated bearing eyes
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US9746046B2 (en) 2010-02-26 2017-08-29 Ifc Composite Gmbh Leaf spring made of a fiber composite material having integrated bearing eyes and method of producing said leaf spring
DE102010050065A1 (en) 2010-10-29 2012-05-03 Ifc Composite Gmbh Fiber composite plate spring, has fiber layers moistened with resin and arranged one above other such that layers with axial end form axial end of spring and do not obtain another axial end of spring with another axial end of layers
DE102010050065B4 (en) * 2010-10-29 2015-10-01 Ifc Composite Gmbh Leaf spring made of a fiber composite material with different lengths of fiber layers and process for their preparation
US10046485B2 (en) 2012-08-27 2018-08-14 Ifc Composite Gmbh Method for simultaneous production of a plurality of leaf springs from a fiber composite material
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EP3311041B1 (en) * 2015-06-22 2025-11-26 Hendrickson USA, L.L.C. Composite suspension components
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