WO2002006697A1 - Siege de ressort - Google Patents

Siege de ressort Download PDF

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Publication number
WO2002006697A1
WO2002006697A1 PCT/EP2001/008054 EP0108054W WO0206697A1 WO 2002006697 A1 WO2002006697 A1 WO 2002006697A1 EP 0108054 W EP0108054 W EP 0108054W WO 0206697 A1 WO0206697 A1 WO 0206697A1
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WO
WIPO (PCT)
Prior art keywords
spring support
spring
diameter
insert
support according
Prior art date
Application number
PCT/EP2001/008054
Other languages
German (de)
English (en)
Inventor
Thomas Burlage
Jan Wucherpfennig
Original Assignee
Basf Aktiengesellschaft
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 Basf Aktiengesellschaft filed Critical Basf Aktiengesellschaft
Priority to AU2001287607A priority Critical patent/AU2001287607A1/en
Priority to EP01967159A priority patent/EP1301730A1/fr
Publication of WO2002006697A1 publication Critical patent/WO2002006697A1/fr

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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
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
    • 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
    • F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
    • 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
    • F16F2226/00—Manufacturing; Treatments

Definitions

  • the invention relates to a spring support based on a hollow, essentially cylindrical shaped body (i), in the cavity of which there is an insert (viii) transversely to the longitudinal axis of the cylinder, which is clamped over at least three elements which are recessed in (i) or be inserted.
  • the invention further relates to spring supports based on a hollow, essentially cylindrical shaped body (i) with a height (1) of 31 mm and a diameter (2) on the side
  • the suspension elements made of polyurethane elastomers are used in automobiles, for example within the chassis, for example on the basis of elastic plastics, for example rubber or elastomers on the basis of polyisocyanate polyaddition products, for example polyurethanes and / or polyureas, and are generally known. They are used in particular in motor vehicles to reduce force peaks in the case of spring resonance or force peaks introduced by the road, but also for the permanent prevention of noises due to relative movement between the steel spring and spring plate, as well as to create very good insulation in the scanning behavior (harchness) for spring supports , The peak force is reduced by detuning the steel spring-spring support system and creating more damping.
  • the spring support generally converts vibrations by converting vibrational energy into heat.
  • the spring elements in automobile construction, in particular in the wheel suspension, are, for example, entire spring strut constructions containing shock absorbers, usually with a spiral spring and elastomer spring, which is also referred to in this document as a vibration damper.
  • the spring support is either between the steel spring and the body or between the strut and steel spring. It can also be supported directly on the axis.
  • the spring support is therefore generally directly or indirectly connected to the body at at least one connection point to the body via the vibration damper generally shown at the beginning. Through this between the shock absorber and the body arranged spring support in addition to the damping by the additional spring and shock absorber further vibration energy is converted into heat. This increases driving comfort in particular.
  • the spring supports Due to the very different characteristics and properties of individual automobile models, the spring supports have to be individually adapted to the various automobile models in order to achieve an ideal chassis adjustment. For example, when developing the spring supports, the weight of the vehicle, the chassis of the special model, the intended shock absorbers, the dimensions of the automobile and its engine output as well as the desired decoupling characteristics can be taken into account depending on the desired comfort while driving.
  • the design of the automobiles means that individual solutions tailored to the particular automobile construction have to be invented simply because of the space available.
  • the object of the present invention was therefore to develop a spring support for a special, new automobile model which meets the specific requirements of this particular model and ensures the best possible driving comfort.
  • the spatial configuration of the spring support ie its three-dimensional shape, has a decisive influence on its function in addition to its material.
  • the shape of the spring support not only guarantees an exact fit in the automobile construction, but also controls the decoupling characteristics in a targeted manner. Not only the length and thickness of the spring support have an influence on the function, but also other configurations such as the design of the radial areas for the steel spring, milling, rounding, incisions, knobs, connecting elements or the like.
  • This three-dimensional shape of the spring support must therefore be developed individually for each automobile model.
  • the requirements which the spring support according to the invention was to meet were in particular the narrow spatial extent, the small area which the steel spring made available and the security against rotation, which serves to optimize the steel spring for the vehicle.
  • FIG 1 Overview of spring support with insert
  • This three-dimensional shape proved to be particularly suitable to meet the specific requirements of the special automobile model, especially with regard to the specific spatial requirements and the required spring characteristics.
  • the spring support according to the invention is based on a hollow, essentially cylindrical shaped body (i) with a height (1) of 31 mm, a diameter (2) on the side (ii) of the shaped body of 80 mm, an inner diameter (3) of 45 mm and recesses (iii), (iv) and (v) on the side (vi) of the molded body.
  • the spring support is preferably characterized in that the shaped body (i) tapers at a height (4) of 14 mm with the exception of a web (vii) to an outer diameter (5) of 53.5 mm, (vii) a thickness ( 6) of 5 mm and the recesses (iii), (iv) and (v) a depth (7) of 4 mm and in the case of (iii) and (iv) a width (8) of 5 mm and with respect to ( v) have a width (9) of 10 mm.
  • the diameter (10) is preferably 62 mm, the diameter (11) 49 mm, the height (12) 27 mm, the height (13) 1 mm and the height (14) 2 mm.
  • spring supports are preferred which contain an insert (viii) which is inserted or preferably clamped in the cutouts (iii), (iv) and (v) by the elements (ix), (x) and (xi), it being particularly preferred that (viii) has a diameter (15) of 49 mm, a thickness of 2 mm, a distance (16) between (x) and (ix) of 20 mm and an opening (xii). It is particularly preferred that the opening (xii) has the shape of a partial circle.
  • the dimension (17) is preferably 1.5 mm and the dimension (18) is preferably 3.5 mm.
  • the spring support is preferably based on cellular polyurethane elastomers, particularly preferably on cellular polyurethane elastomers with a density according to DIN 53420 of 200 to 1100, preferably 300 to 800 kg / m 3 , a tensile strength according to DIN 53571 of> 2, preferably 2 to 8 N / mm 2 , an elongation according to DIN 53571 of> 300, preferably 300 to 700% and a tear resistance according to DIN 53515 of> 8 N / mm, preferably 8 to 25 N / mm.
  • the spring supports according to the invention are preferably used in automobiles or trucks.
  • this form of spring support can be represented, for example, by the force-frequency characteristic curve (behavior of the force versus frequency with the spring system excited with a low amplitude) in the installation situation specified for the vehicle model (FIG. 10), which is the optimum force peak reduction characteristic for this Represents model.
  • the complex relationships are described for example in Reimpell / Stoll, "Chassis technology: shock and vibration damper", p. 166ff.
  • the three-dimensional shape of the spring support according to the invention made it possible to fully meet the requirement regarding the force peak reduction characteristic.
  • the vibration dampers according to the invention are preferably based on elastomers based on polyisocyanate polyaddition products, for example polyurethanes and / or polyureas, for example polyurethane elastomers, which may optionally contain urea structures.
  • the elastomers are preferably microcellular elastomers based on poly isocyanate polyadducts, preferably with cells with a diameter of 0.01 mm to 0.5 mm, particularly preferably 0.01 to 0.15 mm.
  • the elastomers particularly preferably have the physical properties shown at the outset.
  • Elastomers based on polyisocyanate polyaddition products and their preparation are generally known and can be described in many different ways, for example in EP-A 62 835, EP-A 36 994, EP-A 250 969, DE-A 195 48 770 and DE-A 195 48 771st
  • the elastomers based on cellular polyisocyanate polyadducts are usually produced in a form in which the reactive starting components are reacted with one another. Possible forms here are generally customary forms, for example metal forms which, because of their shape, ensure the three-dimensional shape of the spring support according to the invention.
  • the polyisocyanate polyadducts can be produced by generally known processes, for example by using the following starting steps in a one- or two-stage process - uses fabrics:
  • auxiliaries and / or additives for example polysiloxanes and / or fatty acid sulfonates.
  • the surface temperature of the mold inner wall is usually 40 to 95 ° C, preferably 50 to 90 ° C.
  • the production of the molded parts is advantageously carried out at an NCO / OH ratio of 0.85 to 1.20, the heated starting components being mixed and placed in a heated, preferably tight-closing mold in an amount corresponding to the desired molded part density.
  • the molded parts are hardened after 5 to 60 minutes and can therefore be removed from the mold.
  • the amount of the reaction mixture introduced into the mold is usually such that the moldings obtained have the density already shown.
  • the starting components are usually introduced into the mold at a temperature of 15 to 120 ° C., preferably 30 to 110 ° C.
  • the degrees of compaction for the production of the shaped bodies are between 1.1 and 8, preferably between 2 and 6.
  • the cellular polyisocyanate polyadducts are expediently produced by the one-shot process with the aid of the low-pressure technique or in particular the reaction injection molding technique (RIM) in open or preferably closed molds.
  • the reaction is carried out, in particular, with compression in a closed mold.
  • the reaction injection molding technique is described, for example, by H. Piechota and H. Rschreib in "Integral Foams", Carl Hanser-Verlag, Kunststoff, Vienna 1975; D.J. Prepelka and J.L. Wharton in Journal of Cellular Plastics, March / April 1975, pages 87 to 98 and U. Knipp in Journal of Cellular Plastics, March / April 1973, pages 76-84.
  • the starting components can be fed in individually and mixed intensively in the mixing chamber. It has proven to be advantageous to work according to the two-component process.
  • a prepolymer containing NCO groups is first prepared in a two-stage process.
  • component (b) is reacted with (a) in excess, usually at temperatures from 80 ° C. to 160 ° C., preferably from 110 ° C. to 150 ° C.
  • the reaction time is measured when the theoretical NCO content is reached.
  • the molded articles according to the invention are preferably produced in a two-stage process, in which, in the first stage, a prepolymer having isocyanate groups is prepared by reacting (a) with (b) and in the second stage containing this prepolymer in a mold with a crosslinking component if applicable, implements the other components described at the beginning.
  • the mold service life averages 5 to 60 minutes.
  • the molded parts can preferably be annealed for a period of 1 to 48 hours at temperatures of usually from 70 to 120 ° C.
  • Aromatic diisocyanates are particularly suitable for producing the composite elements according to the invention, preferably 2,2-, 2,4 V- and / or 4,4 * -diphenylmethane diisocyanate (MDI), 1,5-naphthylene diisocyanate (NDI), 2,4- and / or 2,6-tolylene diisocyanate (TDI), 3,3 * -dimethyl-diphenyl-diisocyanate (TODI), 1,2-diphenylethane di-isocyanate, phenylene diisocyanate and / or aliphatic isocyanates such as 1, 12-dodecane, 2 Ethyl-1,4-butane, 2-methyl-1,5-pentane-1,4-butane diisocyanate and preferably 1,6-hexamethylene diisocyanate and / or cycloaliphatic isocyanates such as 1, 12-dodecane, 2 Ethyl-1,4-butane, 2-methyl
  • the isocyanates can be in the form of the pure compound, in mixtures and / or in modified form, for example in the form of uretdiones, isocyanurates, allophanates or biurets, preferably in the form of reaction products containing so-called isocyanate prepolymers, urethane and isocyanate groups. be used.
  • MDI Modified 2,2 ⁇ -, 2,4 ⁇ - and / or 4,4-diphenylmethane diisocyanate
  • NDI 1,5-naphthylene diisocyanate
  • TODI 3,3 '-dimethyl-diphenyl-diisocyanate
  • TDI 2,6-tolylene diisocyanate
  • polyhydroxyl compounds As compounds (b) reactive towards isocyanates, generally known polyhydroxyl compounds can be used, preferably those with a functionality of 2 to 3 and preferably a molecular weight of 60 to 6000, particularly preferably 500 to 6000, in particular 800 to 5000. Preferred as ( b) polyether polyols, polyester polyalcohols and / or hydroxyl-containing polycarbonates are used.
  • Suitable polyether polyols can be prepared by known processes, for example by anionic polymerization with alkali hydroxides, such as sodium or potassium hydroxide, or alkali alcoholates, such as sodium methylate, sodium and potassium ethylate or potassium isopropylate, as catalysts and with the addition of at least one starter molecule, the 2 or 3 .
  • alkali hydroxides such as sodium or potassium hydroxide
  • alkali alcoholates such as sodium methylate, sodium and potassium ethylate or potassium isopropylate
  • catalysts and with the addition of at least one starter molecule, the 2 or 3 .
  • Suitable alkylene oxides are, for example, 1,3-propylene oxide, 1,2- or 1,3-butylene oxide, preferably ethylene oxide, 1,2-propylene oxide and tetrahydrofuran.
  • the alkylene oxides can be used individually, alternately in succession or as a mixture.
  • starter molecules are: water, organic dicarboxylic acids, such as succinic acid, adipic acid, phthalic acid and terephthalic acid, aliphatic and aromatic, N-mono- and N, N ⁇ - dialkyl-substituted diamines having 1 to 4 carbon atoms in the alkyl radical, such as mono- and dialkyl substituted ethylenediamine, 1,3-propylenediamine, 1,3- or 1,4-butylenediamine, 1,2-, 1,3-, 1,4-, 1,5- and 1,6-hexamethylene diamine, Alkanolamines such as ethanolamine, N-methyl- and N-ethylethanolamine, dialkanolamines such as diethanolamine, N-methyl- and N-ethyl-diethanolamine, and trialkanolamines such as triethanolamine, and ammonia.
  • organic dicarboxylic acids such as succinic acid, adipic acid, phthalic acid and terephthalic
  • dihydric or trihydric alcohols for example alkanediols having 2 to 12 carbon atoms, preferably 2 to 4 carbon atoms, such as, for example, ethanediol, 1,2-propanediol and -1,3, 1,4-butanediol, Pentrandiol-1, 5, hexanediol-1,6, glycerol, trimethylolpropane, and dialkylene glycols, such as, for example, diethylene glycol and dipropylene glycol.
  • alkanediols having 2 to 12 carbon atoms, preferably 2 to 4 carbon atoms, such as, for example, ethanediol, 1,2-propanediol and -1,3, 1,4-butanediol, Pentrandiol-1, 5, hexanediol-1,6, glycerol, trimethylolpropane
  • dialkylene glycols such as, for
  • polyester polyalcohols are preferably used as (b).
  • Suitable polyester polyols can be prepared, for example, from dicarboxylic acids having 2 to 12 carbon atoms and dihydric alcohols.
  • suitable dicarboxylic acids are: aliphatic dicarboxylic acids such as succinic acid, glutaric acid, adipic acid, suberic acid, azelaic acid and sebacic acid and aromatic dicarboxylic acids such as phthalic acid, isophthalic acid and terephthalic acid.
  • the dicarboxylic acids can be used individually or as mixtures.
  • polyester polyols it may be advantageous to use the corresponding carboxylic acid derivatives, such as carboxylic acid esters having 1 to 4 carbon atoms in the alcohol radical, carboxylic acid anhydrides or carboxylic acid chlorides, instead of the carboxylic acid.
  • carboxylic acid derivatives such as carboxylic acid esters having 1 to 4 carbon atoms in the alcohol radical, carboxylic acid anhydrides or carboxylic acid chlorides, instead of the carboxylic acid.
  • dihydric alcohols examples include glycols having 2 to 16 carbon atoms, preferably 2 to 6 carbon atoms, such as, for example, ethylene glycol, diethylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,10, decanediol, 2-methylpropane-1,3-diol, 2,2-dimethylpropane-1,3-diol, 1,3-propanediol and dipropylene glycol.
  • the dihydric alcohols can be used alone or, if appropriate, in mixtures with one another.
  • Preferred polyester polyols are ethanediol polyadipates, 1,4-butanediol polyadipates, ethanediol-butanediol polyadipates, 1,6-hexanediol-neopentylglycol polyadipates, 1,6-hexanediol-1,4-butanediol polyadipates , 2-methyl-l, 3-propanediol-l, 4-butanediol polyadipate and / or polycaprolactones.
  • Suitable polyoxyalkylene glycols containing ester groups are polycondensates of organic, preferably aliphatic dicarboxylic acids, in particular adipic acid with polyoxymethylene glycols with a number average molecular weight of 162 to 600 and optionally aliphatic diols, especially butanediol-1, 4. Also suitable with such group-containing polycondensation are polykondamyl-containing polycondensation polyglytetramoles e-Caprolactone formed polycondensates.
  • Suitable polyoxyalkylene glycols containing carbonate groups are polycondensates of these with alkyl or aryl carbonates or phosgene.
  • low molecular weight chain extenders and / or crosslinking agents (b1) with a molecular weight of less than 500, preferably 60 to 499, can also be used, for example selected from the group of the di- and / or trifunctional alcohols, di- to tetrafunctional polyoxyalkylene polyols and the alkyl-substituted aromatic diamines or mixtures of at least two of the chain extenders and / or crosslinking agents mentioned.
  • alkanediols having 2 to 12, preferably 2, 4 or 6, carbon atoms can be used as (b1), e.g. Ethane, 1,3-propane, 1,5-pentane, 1,6-hexane, 1,7-heptane, 1,8-octane, 1,9-nonane, 1, 10-decanediol and preferably
  • 1,4-butanediol dialkylene glycols having 4 to 8 carbon atoms, such as e.g. Diethylene glycol and dipropylene glycol and / or di- to tetrafunctional polyoxyalkylene polyol.
  • branched-chain and / or unsaturated alkanediols with usually not more than 12 carbon atoms such as, for example, 1,2-propanediol, 2-methyl-, 2,2-dimethyl-propanediol-1,3, are also suitable.
  • 1,3-di (b-hydroxyethyl) resorcinol alkanolamines with 2 to 12 carbon atoms, e.g. Ethanolamine, 2-aminopropanol and 3-amino-2, 2-dimethylpropanol, N-alkyldialkanolamines, e.g. N-methyl and N-ethyl-diethanolamine.
  • higher-functional crosslinking agents (bl) are trifunctional and higher-functional alcohols, such as Glycerol, trimethylolpropane, pentaerythritol and trihydroxycyclohexanes as well as trialkanolamines, e.g. Called triethanolamine.
  • the technically readily accessible 1,3,5-triethyl-2,4-phenylenediamine, l-methyl-3,5-diethyl-2,4-phenylenediamine, mixtures of 1-methyl-3,5- diethyl-2, 4- and -2, 6-phenylenediamines so-called DETDA, isomer mixtures of 3,3'-di- or 3, 3 ', 5, 5'-tetraalkyl-substituted 4, 4'-diaminodiphenylmethanes with 1 to 4 Carbon atoms in the alkyl radical, in particular 3, 3 ', 5, 5' tetraalkyl-substituted 4, '-diamino-diphenylmethanes containing methyl, ethyl and isopropyl radicals and mixtures of the tetraalkyl-substituted 4,4'-diamino-diphenylmethanes
  • alkyl-substituted aromatic polyamines in a mixture with the abovementioned low-molecular polyhydric alcohols, preferably di- and / or trihydric alcohols or dialkylene glycols.
  • aromatic diamines are preferably not used.
  • the products according to the invention are thus preferably prepared in the absence of aromatic diamines.
  • the cellular polyisocyanate polyadducts can preferably be prepared in the presence of water (c).
  • the water acts both as a crosslinking agent with the formation of urea groups and because of the reaction with isocyanate groups with the formation of carbon dioxide as a blowing agent. Because of this dual function, it is listed separately from (e) and (b) in this document. By definition, components (b) and (e) therefore do not contain water, which by definition is listed exclusively as (e).
  • the amounts of water which can expediently be used are 0.01 to 5% by weight, preferably 0.3 to 3.0% by weight, based on the weight of component (b). All or part of the water can be used in the form of the aqueous solutions of the sulfonated fatty acids.
  • catalysts (d) can be added to the reaction mixture both in the preparation of a prepolymer and, if appropriate, in the reaction of a prepolymer with a crosslinking component.
  • the catalysts (d) can be added individually or as a mixture with one another.
  • organometallic compounds such as tin (II) salts of organic carboxylic acids, e.g.
  • Tin (II) dioctoate, tin (II) dilaurate, dibutyltin diacetate and dibutyltin dilaurate and tertiary amines such as tetramethyl-ethylenediamine, N-methylmorpholine, diethylbenzylamine, triethylamine, dirnethylcyclohexylamine, diazabicyclooipir-pirate 'diazabicyclooipir-pirate', , N-methyl, N '- (4-N-dimethylamino) butylpiperazine, N, N, N', N ", N" -pentamethyldiethylenediamine or the like.
  • amidines such as 2, 3-dimethyl-3, 4,5, 6-tetrahydropyrimidine
  • tris- (dialkylaminoalkyl) -s-hexahydrotriazines in particular tris- (N, N-dimethylamino-propyl) -s-hexahydrotriazine
  • tetraalkylammonium hydroxides such as e.g. Tetramethylammonium hydroxide
  • alkali hydroxides e.g. Sodium hydroxide and alkali alcoholates such as e.g. Sodium methylate
  • the catalysts (d) are used in amounts of 0.001 to 0.5% by weight, based on the prepolymer.
  • blowing agents (e) can be used in polyurethane production.
  • Low-boiling liquids which evaporate under the influence of the exothermic polyaddition reaction are suitable, for example.
  • Liquids which are inert to the organic polyisocyanate and have boiling points below 100 ° C. are suitable.
  • halogenated, preferably fluorinated hydrocarbons such as e.g. Methylene chloride and dichloro onofluoromethane, per- or partially fluorinated hydrocarbons, e.g. Trifluoromethane, difluoromethane, difluoroethane, tetrafluoroethane and heptafluoropropane,
  • Hydrocarbons e.g. n- and iso-butane, n- and iso-pentane and the technical mixtures of these hydrocarbons, propane, propylene, hexane, heptane, cyclobutane, cyclopentane and cyclohexane, dialkyl ethers, such as e.g. Dimethyl ether, diethyl ether and furan, carboxylic acid esters, e.g. Methyl and ethyl formate, ketones, e.g. Acetone, and / or fluorinated and / or perfluorinated, tertiary alkyl amines, e.g. Perfluoro-dimethyl-iso-propylamine. Mixtures of these low-boiling liquids with one another and / or with other substituted or unsubstituted hydrocarbons can also be used.
  • dialkyl ethers such as e.g. Dimethyl
  • low-boiling liquid for the production of such cellular elastic molded articles from elastomers containing bound urea groups depends on the density which is to be achieved and on the amount of water preferably used. In general, amounts of 1 to 15% by weight, preferably 2 to 11% by weight, based on the weight of component (b), give satisfactory results. Water (c) is particularly preferably used as the blowing agent.
  • Auxiliaries and additives (f) can be used in the production of the molded part according to the invention. These include, for example, generally known surface-active substances, hydrolysis protection agents, fillers, antioxidants, cell regulators, flame retardants and dyes. Suitable surface-active substances are compounds which serve to support the homogenization of the starting materials and, if appropriate, are also suitable for regulating the cell structure.
  • additional compounds with an emulsifying effect may be mentioned, such as the salts of fatty acids with amines, for example oleic acid diethylamine, stearic acid diethanol amine, ricinoleic diethanolamine, salts of sulfonic acids, for example alkali or ammonium salts of dodecylbenzene or dinaphthyl methane disulfonic acid.
  • amines for example oleic acid diethylamine, stearic acid diethanol amine, ricinoleic diethanolamine
  • salts of sulfonic acids for example alkali or ammonium salts of dodecylbenzene or dinaphthyl methane disulfonic acid.
  • Foam stabilizers such as, for example, oxyethylated alkylphenols, oxyethylated fatty alcohols, paraffin oils, castor oil or ricinoleic acid esters, Turkish red oil and peanut oil and cell regulators such as paraffins and fatty alcohols are also suitable.
  • polysiloxanes and / or fatty acid sulfonates can be used as (f).
  • Generally known compounds can be used as polysiloxanes, for example polymethylsiloxanes, polydimethylsiloxanes and / or polyoxyalkylene-silicone copolymers.
  • the polysiloxanes preferably have a viscosity at 25 ° C. of 20 to 2000 MPas.
  • the fatty acid " generally known sulfonated fatty acids that are also commercially available, can be used.
  • the surface-active substances are usually used in amounts of 0.01 to 5 parts by weight, based on 100 parts by weight of components (b).

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

La présente invention concerne un siège de ressort se basant sur un corps moulé creux sensiblement cylindrique (i) dans la cavité duquel se trouve une partie d'insertion (viii) disposée transversalement à l'axe longitudinal du cylindre, ladite partie d'insertion étant fixée par l'intermédiaire d'au moins trois éléments qui sont maintenus de manière serrée ou encastrée dans des évidements de (i).
PCT/EP2001/008054 2000-07-17 2001-07-12 Siege de ressort WO2002006697A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001287607A AU2001287607A1 (en) 2000-07-17 2001-07-12 Spring seat
EP01967159A EP1301730A1 (fr) 2000-07-17 2001-07-12 Siege de ressort

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10035072.0 2000-07-17
DE2000135072 DE10035072A1 (de) 2000-07-17 2000-07-17 Federauflage

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WO2002006697A1 true WO2002006697A1 (fr) 2002-01-24

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EP (1) EP1301730A1 (fr)
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DE (1) DE10035072A1 (fr)
WO (1) WO2002006697A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005028761A1 (de) * 2005-06-22 2007-01-04 Zf Friedrichshafen Ag Federteller für einen Schwingungsdämpfer
WO2007012622A1 (fr) * 2005-07-29 2007-02-01 Basf Aktiengesellschaft Ressort auxiliaire

Citations (11)

* Cited by examiner, † Cited by third party
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US2074136A (en) * 1934-05-25 1937-03-16 Gen Electric Resilient mounting
FR2288250A2 (fr) * 1974-10-16 1976-05-14 Kleber Colombes Dispositif elastique amortisseur, notamment pour suspension de roue de vehicule
GB2030377A (en) * 1978-09-04 1980-04-02 Siemens Ag Mounting Electric Motors
EP0036994A2 (fr) 1980-03-28 1981-10-07 Bayer Ag Procédé pour préparer des articles à base d'élastomères cellulaires de polyuréthanes impénétrables à l'eau et leur application comme élément de ressort
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EP0049654A1 (fr) * 1980-10-03 1982-04-14 Societe Electromecanique Du Nivernais Selni Moteur électrique à dispositif de fixation à bague élastique
EP0062835A1 (fr) 1981-04-04 1982-10-20 Elastogran GmbH Procédé de préparation d'articles moulés de polyuréthane à cellules fermées ayant une couche externe compacte
FR2507724A1 (fr) * 1981-06-12 1982-12-17 Krupp Gmbh Tampon amortisseur en matiere synthetique cellulaire
EP0250969A1 (fr) 1986-06-24 1988-01-07 Bayer Ag Procédé de préparation d'élastomères de polyuréthane cellulaires
US5419539A (en) * 1993-08-16 1995-05-30 Freudenberg-Nok General Partnership Elastomeric shock absorber with positioning insert
DE19548771A1 (de) 1995-12-23 1997-06-26 Basf Ag Mikrozelluläres, harnstoffgruppenhaltiges Polyurethanelastomer
DE19548770A1 (de) 1995-12-23 1997-06-26 Basf Ag Mikrozelluläres, harnstoffgruppenhaltiges Polyurethanelastomer

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DE102005028761A1 (de) * 2005-06-22 2007-01-04 Zf Friedrichshafen Ag Federteller für einen Schwingungsdämpfer
WO2007012622A1 (fr) * 2005-07-29 2007-02-01 Basf Aktiengesellschaft Ressort auxiliaire

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EP1301730A1 (fr) 2003-04-16
AU2001287607A1 (en) 2002-01-30

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