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WO2007012622A1 - Ressort auxiliaire - Google Patents

Ressort auxiliaire Download PDF

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Publication number
WO2007012622A1
WO2007012622A1 PCT/EP2006/064553 EP2006064553W WO2007012622A1 WO 2007012622 A1 WO2007012622 A1 WO 2007012622A1 EP 2006064553 W EP2006064553 W EP 2006064553W WO 2007012622 A1 WO2007012622 A1 WO 2007012622A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring element
spring
cellular polyurethane
pot
din
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.)
Ceased
Application number
PCT/EP2006/064553
Other languages
German (de)
English (en)
Inventor
Holger Schrovenwever
Anja Blum
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.)
BASF SE
Original Assignee
BASF SE
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 SE filed Critical BASF SE
Priority to DE112006001831T priority Critical patent/DE112006001831A5/de
Publication of WO2007012622A1 publication Critical patent/WO2007012622A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16F1/36—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
    • F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
    • 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
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/04—Compression

Definitions

  • the invention relates to spring element (i) based on cellular polyurethane elastomers with an edge (v) at the other axial end, which serves as a support for a coil spring, and a in the spring element adhesively bonded to the cellular polyurethane elastomer pot (vi), which In the case of loading, preferably the force is introduced into the body in such a way that the area and the function of the coil spring support is not influenced.
  • the invention relates to preferred spring elements (i) based on cellular polyurethane elastomers, which may optionally contain polyurea structures, particularly preferably based on cellular polyurethane elastomers, preferably having a density according to DIN 53 420 of 200 to 1100, preferably 300 to 800 kg / m 3 , more preferably 600 to 700 kg / m 3 , in particular 650 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 strength according to DIN 53515 of> 8, preferably 8 to 25 N / mm, with a height (ii) between 110 mm and 120 mm, preferably between 111 mm and 115 mm, particularly preferably 13 mm, and an outer diameter (iii) between 90 mm and 100 mm, preferably 95 mm, with a circumferential
  • Federeiementes and an edge (v) at the other axial end which can serve as a support for a coil spring and their decoupling, wherein the edge (v) is preferably positioned between the coil spring and the body, and one in the spring element adhesively bonded to the cellular polyurethane elastomer Pot (vi) having a height (vii) between 40 mm and 50 mm, preferably 46.3 mm and an outer diameter (viii) between 55 mm and 65 mm, particularly preferably 61 mm.
  • the invention relates to automobiles comprising the spring elements according to the invention.
  • Suspension members made of polyurethane elastomers are used in automobiles, for example, within the chassis and are well known. They are used in particular in motor vehicles as vibration damping spring elements.
  • the spring elements take on an end stop function, influencing the force-path identifier of the wheel by forming or reinforcing a progressive characteristic of the vehicle suspension. The pitching effects of the vehicle can be reduced and the roll support is enhanced.
  • the geometric design of the starting stiffness is optimized, this has a significant impact on the suspension comfort of the vehicle.
  • the targeted design of the geometry results in almost constant component properties over the lifetime. This feature increases ride comfort and ensures maximum driving safety.
  • the spring elements can also be used as spring support for the Spiral spring serve by one edge of the spring between the coil spring and body is placed.
  • the spring elements Due to the very different characteristics and characteristics of individual car models, the spring elements have to be individually adapted to the different car models in order to achieve an ideal suspension tuning. For example, in the development of the spring elements, the weight of the vehicle, the chassis of the special model, the proposed shock absorbers and the desired spring characteristic can be taken into account. In addition, due to the available installation space, individual automobiles that are tailored to the building structure must be invented for various automobiles.
  • the spatial configuration of the spring elements i. Its three-dimensional shape, in addition to its material, has a decisive influence on its function.
  • the above functions are specifically controlled. This three-dimensional shape of the spring element must therefore be developed individually for each automobile model.
  • Object of the present invention was thus to develop a suitable coil spring support with integrated auxiliary spring with the above functions for a special, new automotive model that meets the specific requirements of this model and ensures the best possible driving comfort and excellent driving safety.
  • the advantages of this separation of functions lie not only in the effect of the individual functions, but also in the durability of the connection point, since an unloaded connection for durability does not present a problem. represents learning.
  • the pot (vi) is preferably not in direct contact with the body.
  • cellular polyurethane elastomer is located between pot (vi) and body.
  • the invention thus relates to the complete separation of functions of the two functions "additional spring and spring support” by the use of the pot (vi), preferably based on the polyoxymethylene.
  • the spring support preferably remains unaffected by the additional spring forces in each load case and the actual function of the spring support is maintained.
  • the pot (vi) thus separates the functions "spring support and auxiliary spring”. Through the pot (vi) can be realized in conjunction with the additional spring almost every characteristic and each point of application of the auxiliary spring. This separation of functions is easy to implement and very effective in terms of function and life of the component.
  • the spring elements according to the invention are shown by way of example in detail in FIGS. 1 and 2.
  • the given dimensions are given in [mm]. It was precisely this three-dimensional shape that proved particularly suitable for meeting the specific requirements of the special automotive model, especially with regard to the specific spatial requirements and the required spring characteristics.
  • the pot (vi) has an outer edge (ix) and a core (x), which are connected to one another via webs (xi) and wherein between the webs (xi) is present the cellular polyurethane elastomer.
  • spring elements in which the spring element (i) has two circumferential constrictions (iv) on the outer surface of the spring element (i) at a height (v) between 55 mm and 65 mm, particularly preferably 60 mm, and at a height ( vi) between 75 mm and 80 mm, particularly preferably 77 mm.
  • the inventive bodies (i) 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 polyisocyanate polyaddition products, preferably with cells having a diameter of from 0.01 mm to 0.5 mm, particularly preferably from 0.01 to 0.15 mm.
  • the elastomers particularly preferably have the physical properties described at the outset.
  • Elastomers based on polyisocyanate polyaddition products and their preparation are generally known and described in many 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 48 771.
  • the preparation is usually carried out by reacting isocyanates with isocyanate-reactive compounds.
  • the elastomers based on cellular polyisocyanate polyaddition products are usually prepared in a form in which the reactive starting components are reacted together. As forms come here in common forms in question, for example, metal molds, which ensure the inventive three-dimensional shape of the spring element due to their shape.
  • the preparation of the polyisocyanate polyaddition products can be carried out by generally known processes, for example by using the following starting materials in a one- or two-stage process:
  • 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 0 C, preferably 50 to 90 0 C.
  • the production of the moldings is advantageously carried out at an NCO / OH ratio of 0.85 to 1, 20, wherein the heated starting components mixed and in a the desired molding density corresponding amount are placed in a heated, preferably tightly closing mold.
  • the moldings are cured after 5 to 60 minutes and thus demoulded.
  • the amount of reaction mixture introduced into the mold is usually measured such that the resulting moldings have the density already described.
  • the starting components are usually introduced at a temperature of 15 to 120 0 C, preferably from 30 to 110 ° C, in the mold.
  • the degrees of densification for the production of the shaped bodies are between 1, 1 and 8, preferably between 2 and 6.

Landscapes

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

Abstract

L'invention concerne un élément ressort (i) à base d'élastomères de polyuréthanne cellulaires, comprenant un bord (v), au niveau de l'autre extrémité axiale, qui sert de support à un ressort en spirale, ainsi qu'une cuvette de ressort (vi) qui est reliée à l'élastomère de polyuréthanne cellulaire dans l'élément ressort, de manière à adhérer à celui-ci.
PCT/EP2006/064553 2005-07-29 2006-07-21 Ressort auxiliaire Ceased WO2007012622A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006001831T DE112006001831A5 (de) 2005-07-29 2006-07-21 Zusatzfeder

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200520012148 DE202005012148U1 (de) 2005-07-29 2005-07-29 Zusatzfeder
DE202005012148.7 2005-07-29

Publications (1)

Publication Number Publication Date
WO2007012622A1 true WO2007012622A1 (fr) 2007-02-01

Family

ID=35220376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/064553 Ceased WO2007012622A1 (fr) 2005-07-29 2006-07-21 Ressort auxiliaire

Country Status (2)

Country Link
DE (2) DE202005012148U1 (fr)
WO (1) WO2007012622A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2759271A1 (fr) 2013-01-28 2014-07-30 Nextremity Solutions, Inc. Dispositif de compression constitué d'une plaque osseuse dynamique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006007000A1 (de) * 2006-01-20 2007-10-04 Continental Aktiengesellschaft Luftfeder- und Dämpfereinheit mit Zuganschlag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006697A1 (fr) * 2000-07-17 2002-01-24 Basf Aktiengesellschaft Siege de ressort
DE20204302U1 (de) * 2002-03-19 2002-06-06 Basf Ag, 67063 Ludwigshafen Zusatzfeder
DE20206094U1 (de) * 2002-04-19 2002-07-04 Basf Ag, 67063 Ludwigshafen Zusatzfeder
DE20213259U1 (de) * 2002-08-26 2002-11-21 Basf Ag, 67063 Ludwigshafen Federkonstruktion
DE20218893U1 (de) * 2002-12-05 2003-02-13 Basf Ag, 67063 Ludwigshafen Federkonstruktion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002006697A1 (fr) * 2000-07-17 2002-01-24 Basf Aktiengesellschaft Siege de ressort
DE20204302U1 (de) * 2002-03-19 2002-06-06 Basf Ag, 67063 Ludwigshafen Zusatzfeder
DE20206094U1 (de) * 2002-04-19 2002-07-04 Basf Ag, 67063 Ludwigshafen Zusatzfeder
DE20213259U1 (de) * 2002-08-26 2002-11-21 Basf Ag, 67063 Ludwigshafen Federkonstruktion
DE20218893U1 (de) * 2002-12-05 2003-02-13 Basf Ag, 67063 Ludwigshafen Federkonstruktion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2759271A1 (fr) 2013-01-28 2014-07-30 Nextremity Solutions, Inc. Dispositif de compression constitué d'une plaque osseuse dynamique

Also Published As

Publication number Publication date
DE202005012148U1 (de) 2005-10-20
DE112006001831A5 (de) 2008-06-12

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