• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A vehicle spring for a spring system with a spring body (20), made of a profiled bar (1) made of flat bar steel, in particular spring steel, made hot, in particular rolled. The profile bar (1) or the spring body (20) has at least one material recess (6), which is provided at least partially over its length. The cross-sectional shape of the profile bar (1) can be the same over its entire length, whereas the cross-sectional shape in the spring body (20) can change over its length.
    公开号:AT513234A1
    申请号:T845/2012
    申请日:2012-07-30
    公开日:2014-02-15
    发明作者:Gerhard Dipl Ing Kuehnelt；Joerg Dipl Ing Zamberger
    申请人:Frauenthal Automotive Sales Gmbh；
    IPC主号:
    专利说明:

    30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 03/25
    The invention relates to a profile bar made of flat bar steel, in particular spring steel, for producing a hot-formed, in particular rolled, vehicle spring, and a method for producing such a profile bar.
    Furthermore, the invention relates to a vehicle spring with an elongate spring body, which is made of a hot deformed, in particular rolled, and a method for producing such a vehicle spring.
    Moreover, the invention relates to a spring system for a vehicle.
    Under vehicle spring can be understood in the field of application of the invention, an air spring (control arm spring), a parabolic spring, a leaf spring, in particular single-sheet and multi-leaf parabolic spring, which are made of flat bar steel.
    Vehicle springs in the invention are made of flat bar steel, preferably spring steel, thermoformed at temperatures of about 800 to 1200 ° C warm, in particular rolled. For flat bar cold formed vehicle springs, the vehicle springs receive their resilient function through the material, i. the vehicle spring has an inherent spring effect due to the starting material. According to EN 10089.3.1, spring steel is described as follows: "Materials which, because of their tempered properties, are particularly suitable for the production of resilient parts of all kinds. The resilience of the steels is based on their elastic deformability, as a result of which they can be loaded within a certain range without a permanent change in shape occurring after unloading. ... "
    Spring systems are known in which supports are cast (e.g., as disclosed in DE 10 2008 061 190) or welded (e.g., as disclosed in WO 2003/064192); these carriers are not springs in the conventional sense. Such carriers can - in contrast 30/07/2012 16:52
    No. · M72 2/28 P.003 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 04/25 • • • • • • • • • • • • • • • • · · · · · · · · ·
    too hot deformable steel - not deformed hot but only processed at much higher temperatures. In contrast, e.g. Flat bar steel made of spring steel almost unweldable. In addition, the cast or welded carrier obtained by their material properties in the use state in a spring system, no primary spring effect. Due to the material properties, these carriers form a rigid system per se. The resilient effect of this system is achieved only by the special connection of the carrier, usually by an eye incorporated in the carrier or a rubber support carrier.
    In forging with forged steel (e.g., as disclosed in WO2009 / 014423), no spring is made by rolling a profile bar of flat bar steel.
    Vehicle springs find application in motor vehicles, especially in commercial vehicles or trailers (towed vehicle). The requirements of the automotive industry are characterized on the one hand by reducing the weight of individual components. On the other hand, the requirements due to increasing engine power are characterized by the fact that individual components are subject to ever higher mechanical stresses. The problem with warm-shaped vehicle springs made of flat bar steel is that the weight of the vehicle spring can not be easily reduced because the vehicle spring, in particular the spring body, must withstand other stresses due to its resilient function, a, .ls as cast or welded products. So far, weight of a vehicle spring has been saved by - starting from the same starting material for producing the vehicle spring - the geometry of the finished vehicle spring was increased to increase the surface tension such that the vehicle spring could be built compact.
    The invention is based on the object to provide a vehicle spring of the type mentioned available 2U, whose weight is reduced compared to a conventional vehicle spring, with the inherent resilient function of the 30/07/2012 16:52
    P.004 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 05/25 • • • • • • • • • • • • • • • • • • • • · · ·
    Spring body is ensured and the mechanical strength is not impaired. In certain applications, a more compact design can be achieved.
    This object is achieved with a profile bar, which has the features of claim 1 and with a method for producing a profile bar, which has the features of claim 10.
    Furthermore, this object is achieved with a vehicle spring, which has the features of claim 11, and with a method for producing a vehicle spring, which has the features of claim 24.
    In addition, this object is achieved with a spring system for a vehicle, which has the features of claim 26.
    According to the invention it is provided that the profile bar has at least one material recess, which is provided at least partially over its length. Thus, the weight of the vehicle spring produced from the profile bar can be reduced by the geometry of the starting product used to about 30% or more, wherein the power and the spring action of the spring body is not affected. Also, thus more compact vehicle springs can be made with constant weight.
    In the context of the invention, the profile bar is preferably made of a spring steel according to DIN EN 10089.
    In a particularly preferred embodiment, the material recess extends over the entire length of the profile bar. It is further preferred that the cross-sectional shape of the profile bar is the same over its length, i. that the cross-sectional shape of the profile bar does not change over its length. 30/07/2012 16:53
    P.005 / 025 06/25 30/07/2012 16:52 0043-1-526-42-45 BEER & PARTNER PATENTA S. • · '·· ····· ··· ···· ♦ ♦ ··· ···· · # · · · · · · · · · ·········································································
    In the context of the invention, the profile bar on an upper side, a lower side and two narrow sides, wherein at least one material recess is preferably provided in at least one narrow side. Alternatively or additionally, at least one material recess may be provided in the underside.
    In particular, it is preferred if the material recess is pronounced as a depression in the width b and / or at the height h of the profile rod in at least one central region of the lower or the narrow side. The profile bar has a longitudinal axis, a transverse axis extending transversely to the longitudinal axis, which preferably corresponds to the neutral fiber, and a perpendicular to the transverse axis extending from the bottom to the top axis, wherein in a particularly advantageous embodiment, a material recess in the transverse axis and / or or in the region of the axis and / or wherein the cross-sectional shape is symmetrical to the axis.
    In a particularly preferred embodiment of the invention, the profile bar in cross section corresponds to an I-profile. Other profile shapes may also be provided within the scope of the invention, e.g. U or T profiles.
    According to the invention it is further provided that the profile bar is produced by displacing material in the longitudinal direction of the profile bar.
    According to the invention it is also provided that the thermoformed spring body, which has a resilient effect in the installed state, has at least one material recess, which is provided at least partially over its length.
    In one embodiment of the invention, the material recess may extend over the entire length of the vehicle spring. In other embodiments of the invention it can be provided that the length of the material recess 1 to 99% of the length of the vehicle spring, in particular 10 to 90% or 20 to 30/07/2012 16:53 5/28 2 P.006 / 025 30 / 07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 07/25 I «· ·« · · · · · · · · · · · · · · · · · · · · «80% or 40% to 40% or approx. 50% of the profile bar is. In a particularly preferred embodiment of the invention, the spring body at least partially corresponds in cross section to an I-profile. Other profile shapes may also be provided within the scope of the invention, e.g. U or T profiles.
    Since rolling processes take place during production of the vehicle spring, it is preferred within the scope of the invention if the cross-sectional shape of the spring body changes over its length, in particular if the width of the material recess changes over the length of the material recess. Thus, the width of the material recess can be adapted to the optimum shape of the finished spring, which also areas with different flexural strength can be achieved.
    The depth of the material recess in the profiled bar and / or in the spring body can increase or decrease continuously or discontinuously across the width of the material cutout, viewed in cross section. The depth of the material recess may be continuous, e.g. rectilinear or arcuate and / or decrease or e.g. gradually increase and / or decrease, the depth of the material recess sections remains the same. Also, the depth of the material recess may increase first, then remain the same or decrease and then increase again or the depth can only increase.
    As a material recess and one or more, possibly parallel to each other, grooves (material recesses) may be provided.
    A vehicle spring is produced according to the invention from an elongate profile bar in such a way that the profile bar is thermoformed, in particular rolled, with at least one material recess, which is provided at least partially over the length of the profile bar. In particular, it may be provided 30/07/2012 16:53
    P.007 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 08/25 «· · · · · · ·« · · · · · · · · ·
    That the starting material for the hot deformation is a profiled bar with at least one material recess whose cross-sectional shape is the same over its entire length, the width of the material recess being changed differently during the hot deformation over the length of the spring body.
    Under material recess is understood in the context of the invention, a material saving, i. that otherwise in the material recess existing material is replaced by the material recess, or that otherwise existing material is not present. In particular, in the context of the invention material recess can be understood as meaning that material in the area of the material recess is displaced in the longitudinal direction of the profile bar. In contrast, e.g. ribbed leaf springs no material recess, since here the material not "displaced" in the longitudinal direction, but in the direction senessen to the transverse axis of the profiled bar, " displaced " is. Also, e.g. Embossing in a profile bar or in a vehicle spring no material recess, as in imprints material is not displaced over the (preferably entire) longitudinal direction of the profile bar or the spring body.
    For example, the manufacturing process of a vehicle spring can be summarized as follows:
    A profile bar, in particular a flat bar, with a material recess with a constant cross-sectional shape over its entire length is cut to the desired length.
    The starting material used in the invention preferably a flat bar steel according to EN 10092 or BS 970-2 and a spring steel according to EN 10089 or EN 10083; however, other heat-deformable steels can also be used. In the context of the invention, standardized spring or tempering steels can also be used depending on the country / region. For further thermoforming, the profile bar is brought to a temperature of about 800 to 1200 ° C. The cut-to-length profile bar is rolled horizontally or vertically at this temperature, and the ends are made according to 30/07/2012 16:54
    No. · R * 72 7/28 P.008 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 09/25 • • • • • • • • • • • • • • • • • • • • • •
    ···· desired vehicle spring processed accordingly. To roll out the profile bar is heated on one side, driven between an open pair of rollers and then moved in the longitudinal direction between them once or several times. In this machining operation, the distance between the rollers can be changed, so that the desired profile of the profile bar is adjusted. When rolling the profile bar can thus be changed differently by exerting different pressure and the width of the material recess over the length of the profile bar. Subsequently, the professional bar is heated on the opposite side and carried out a new rolling process.
    Depending on the desired Fahrieugfeder, especially when several springs are to be arranged in jeuxposure in the use state {multilayer springs) kanri a center hole, a blind hole or other depressions for a spring screw or other positive locking elements are introduced. The profile bar can receive one or two eyes in a further step. The re-heated or still at the required temperature located rolled profile bar can then optionally pass through one or more pressing stations for an end processing, after which a rolling process can be performed. The rolling of the ends to eyes also takes place at temperatures of about 800 to 1200 ° C. In further steps, the spring (at about 900 eC) can be bent and then tempered.
    Depending on the nature of the vehicle spring both ends can have an eye. One end may also be a rolled or molded, e.g. introduced in the spring body, eye, while the other end extends substantially flat. In the last-mentioned embodiments, the profile bar can be angled or bent in particular in the area towards the flat end. In another embodiment, both ends may be substantially flat and possibly slightly cranked (without eye). 30/07/2012 16:54
    No .: R472 8/28 P.009 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA p. 10/25 • • • • • • • • • • • • • * «« · · · · «« «
    Depending on the type of vehicle spring, the processing steps can be changed. In the context of the invention, the profile bar can also be heated at the beginning to a certain processing temperature, wherein in the subsequent processing steps no further heating is necessary.
    Preferred and advantageous embodiments of the invention will become apparent from the following description with reference to the accompanying drawings, in which preferred embodiments are shown.
    1 to 5 known cross-sectional shapes of profiled bars for vehicle springs of heat-deformable steel, Fig. 6 to 11 embodiments of profiled bars for a vehicle spring according to the invention in cross section, Fig. 12 shows a first embodiment of a control arm according to the invention with curled eye, Fig. 13th a second embodiment of a control arm according to the invention with introduced into the spring body eye and Fig. 14 shows an embodiment of a parabolic spring according to the invention.
    1 to 5 previously known cross-sectional shapes of profile bars 1 are shown from flat bar steel, namely a natural-edged profile (Fig. 1), a profile with semicircular narrow sides (Fig. 2), a profile with rounded edges (Fig. 3) and a basket arch profile (British Standard) (Figure 4). Fig. 5 shows in cross-section a thermoformable profile bar 1 for ribbed leaf springs.
    The thermoformable profile bars 1 shown in FIGS. 1 to 3 correspond to DIN EN 10092-1. Fig. 4 shows a thermoformable profile bar 1 made of flat bar steel with a cross-sectional shape according to British Standard BS 970-2: 1988 b. The thermoformable profile bar 1 shown in FIG. 5 corresponds to DIN EN 10092-2. The profile bars 1 have an upper side 2, a lower side 3 and two narrow sides 4, 5. Furthermore, in Figs. 1 to 4, the width b, the height h and the transverse axis z (this 30/07/2012 16:54
    P. 010/025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA p. 11/25 ·· ·· ♦ · ♦♦ ♦ ··· ············································································· Also corresponds to the neutral fiber defined with regard to the bending stress) of the profiled bars 1 as well as radii of curvature r. The profiled bars 1 according to FIGS. 1 to 4 have no material recess over their length. Also, the profile bar 1 shown in Fig. 5 has over its length no material recess, since in the ribbed area all material is present and the material is not displaced in the longitudinal direction.
    In contrast to the known profile bars 1, an inventive profile bar 1 has at least one material recess 6. Thus, the weight of a warm rolled vehicle spring can be reduced by the starting material, wherein the power consumption and the spring action of the vehicle spring is not impaired.
    By way of example, FIG. 6 shows a profile bar 1 (in particular of flat bar steel) which (starting from a known profile bar 1 according to FIG. 3) has in its two narrow sides 3, 4 a material recess 6 with a width B and a depth T, respectively. The material otherwise present on the narrow sides 4,5 (as in, for example, FIG. 3) is displaced along the longitudinal direction in the profiled bar 1 according to FIG. 6 and is no longer present in the profiled bar 1. In the embodiment shown in FIG. 6 and in FIG. 7, the profiled bar 1 has an I-profile with a material recess 6, which runs in an arcuate manner in cross-section.
    The depth T of the material recess 6 decreases over the width B first continuously and then again continuously.
    A difference between the embodiments illustrated in FIGS. 6 and 7 is that the underside 3 of the profiled bar 1 according to FIG. 7 is less wide than its upper side 2.
    In the embodiment shown in Fig. 8, the profile bar 1 has a downwardly open U-profile with a cross-sectionally arcuate material recess 6, i. the material recess 6 is provided in the bottom 3. 30/07/2012 16:55
    No. · R472 10/28 P.011 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA p. 12/25
    • · • · · · · · · · · · · · · · · · · · · · ·
    In the embodiment shown in FIG. 9, the profile bar 1 has a substantially trapezoidal cross-sectional shape with rounded corners. The material recess 6 extends from the upper region of the profile bar 1 straight to the bottom 3, wherein the depth T of the material recess 6 increases steadily over the width B. The material recess 6 is provided in both narrow sides 4, 5 and in the bottom 3.
    In the embodiment shown in FIG. 10, the profiled bar 1 has a T-profile with a material recess 6 extending in a wave-shaped cross-section. Also in this embodiment, the depth T of the material recess 6 continuously increases over the width thereof in the direction of the underside 3.
    In the embodiment shown in Fig. 11, 5 material recesses 6 are provided in the two narrow sides 4, which extend similar to FIG. 9. In addition, a material recess 6 is provided in the bottom 3, which is similar to that in Fig. 8.
    All illustrated embodiments of profiled bars 1 according to the invention have in common that the profiled bar 1 has a transversely to its longitudinal axis extending transverse axis z (this may correspond to the neutral fiber) and at a right angle to the transverse axis z extending axis V and that the cross-sectional shape to the axis V symmetrical is. Furthermore, all shown embodiments have in common that the material recess 6, based on a formed by the width b and the height h of the profile bar 1, imaginary cross-sectional area (shown hatched in Figs. 6 bs 11) extends into the profile bar 1 into it. Based on the imaginary cross-sectional area formed by the width b and the height h of the profiled bar 1, edge regions in the region of the corners (this can also be rounded corners) and central regions over the height h and width b can be defined. In the context of the invention, the material recess 8 is a depression of the width b and / or the height h of the profile bar 1 in at least one central region. 30/07/2012 16:55
    No .: R472 11/28 P.012 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 13/25
    ······································
    In particular, it may be provided that at least one material recess 6 extends in the region and in particular along the transverse axis z and / or in the region and in particular along the axis (V).
    In the illustrated profile bars 1, the material recess 6 extends over the entire length of the profile bar 1 / wherein the cross-sectional shape of the profile bar 1 does not change over its entire length.
    If a vehicle spring with a spring body 20 is produced from the profile bar 1, one or more features of the material recess 6 contained in the profile bar 1 can also be present in the spring body 20. In the finished vehicle spring also mixed forms of possible material recesses 6 or cross-sectional shapes can be present. In the finished vehicle spring, the material recess 6 can not extend over the entire length of the spring body 20, wherein the cross-sectional shape of the material recess 6 can change in the spring body. In Fig. 12, an embodiment of a control arm according to the invention is shown with a spring body 20 made of a thermoformed profile bar 1. At one of its longitudinal ends 7, the control spring on a rolled eye 8. The other longitudinal end 9 is angled and has two bores 10 which are suitable for mounting e.g. serve an air spring bellows.
    The spring body 20 has over a major part of its length on the two narrow sides 4, 5 a continuous material recess 6 and is rolled different degrees over its length. By rolling, the width B of the material recess 6 changes over the length of the spring body 20. The depth T of the material recess 6 in this embodiment continuously increases and decreases. In. of the embodiment shown in FIG. 12, the spring body 20 has an I-profile, wherein the material recess 6 over the length of the spring body 20 has a largely constant depth T. 30/07/2012 16:56
    P.013 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA p. 14/25 • • • • • • • • • • • • • • • • • · · · · · · · ·
    In Fig. 13, a further embodiment of a control spring according to the invention from a hot deformed section bar 1 is shown. At one of its LMngsenden 7, the control arm on a molded-eye 11. The other longitudinal end 9 is angled.
    The spring body 20 has over its entire length on the two narrow sides 4, 5 a continuous material recess 6 and is rolled to varying degrees over its length. By rolling, the width B of the material recess 6 changes over the length of the spring body 20. The depth T of the material recess 6 increases and decreases differently in this embodiment. In the region of the longitudinal end 7, in which region the eye 11 is formed, the spring body 20 has an I-shaped profile according to the profile bar 1 from FIG. 6. Over the length of the spring body 20 changes its cross-sectional shape. For example, in the middle section of the profile bar 1, the depth T of the material recess 6 increases and decreases substantially in stages.
    In Fig. 14, an embodiment of a parabolic spring according to the invention from a hot deformed profile bar 1 is shown. The parabolic spring has a rolled eye 8 at both ends. The spring body 20 has an I-profile viewed in cross-section, wherein the width of the material recess 6 increases or decreases over part of the length of the spring body 20 and remains the same over a portion of the length of the spring body 20. in the in Figs. 12 to 14 (as well as in particular in Figs. 6 and 7), the spring body 20 (or profile bar 1) on a neutral fiber, wherein the material recess 6 a recess of the width b of the profile bar 1 over its height h is in the region of and along the neutral fiber. This preferred embodiment may also apply to cross-sectional shapes, not shown.
    In summary, an embodiment of the invention may be represented as follows: 30/07/2012 16:56
    P.014 / 025 30/07/2012 16:52 0043-1-526-42-45
    BEER & PARTNER PATENTA P. 15/25
    * 13
    A vehicle spring for a spring system with a spring body 20 is made of a profiled bar 1 made of flat bar steel, in particular spring steel, hot deformed, in particular rolled. The profiled bar 1 or the spring body 20 has at least one material recess 6, which is provided at least partially over its length. The cross-sectional shape of the profile bar 1 may be the same over its entire length, whereas the cross-sectional shape in the spring body 20 may change over its length. 30/07/2012 16:56
    P.015 / 025
    权利要求:
    Claims (14)
    [1]
    30/07/2012 16:52 0043-1-526-42-45 BEER & PARTNER PATENTA P. 16/25

    Claims 2. 3. 4. 5. Profile bar made of flat bar steel, in particular spring steel, for producing a hot-formed, in particular rolled, vehicle spring, characterized in that it comprises at least one material recess (6) which is provided at least partially over its length. Profile bar according to claim 1, characterized in that the material recess (6) extends over the entire length of the profile bar (1). Profile bar according to claim 1 or 2, characterized in that the cross-sectional shape of the profile bar is equal over its length. Profile bar according to one of claims 1 to 3, characterized in that it comprises a top (2), a bottom (3) and two narrow sides (4, 5) and that at least one material recess (6) in at least one narrow side (4, 5 ) is provided. Profile bar according to one of claims 1 to 4, characterized in that it comprises a top (2), a bottom (3) and two narrow sides (4,5) and that at least one material recess (6) in the bottom (3) is provided , Profile bar according to claim 4 or 5, characterized in that the material recess (6) has a depression of the width (b) and / or the height (h) of the profile bar (1) in at least one central region of the underside (3) or the narrow side (4, 5). Profile bar according to claim 6, characterized in that it has a longitudinal axis, a transversely to the longitudinal axis extending transverse axis (z), preferably the neutral fiber 30/07/2012 16:56

    P.016 / 025 30/07/2012 16:52 0043-1-526-42-45 BEER & PARTNER PATENTA P. 17/25

    • · · · · · · · · · · · · · · · · · · · · · · · ·

    9. 10. 11. 12. corresponds, and at a right angle to the transverse axis (z) from the bottom (3) to the top (2) extending axis (V) and that at least one material recess (6) in the region of the transverse axis ( z) and / or in the region of the axis (V). Profile bar according to one of claims 1 to 7, characterized in that it has a longitudinal axis, a transverse axis extending transversely to the longitudinal axis (z), which preferably corresponds to the neutral fiber, and at right angles to the transverse axis (z) from the underside (3). to the top (2) extending axis (V) and that the Quersehnittsform to the axis (V) is symmetrical. Profile bar according to one of claims 1 to 8, characterized in that it corresponds in cross section to an I-profile or a U-profile or a T-profile. Method for producing a profiled bar (1) according to one of claims 1 to 9, characterized in that material in the longitudinal direction of the profiled bar (1) is displaced. Vehicle spring with an elongated spring body (20) made of a profiled bar (1) hot deformed, in particular rolled, characterized in that the spring body (20) has at least one material recess (6) which is provided at least partially over its length. Vehicle spring according to claim 11, characterized in that the material recess (6) extends over the entire length of the spring body (20). Vehicle spring according to claim 11, characterized in that the length of the material recess (6) is 1 to 99% of the length of the spring body (20), in particular 10 to 90% or 20 to 80% of the spring body (20). 30/07/2012 16:57 No R472 16/28 P. 017/025 13. 30/07/2012 16:52 0043-1-526-42-45 BEER & PARTNER PATENTA P. 18/25 · ♦ ·· ♦♦ · · ♦ · ···· ♦ · · · · · · · · · · · · · · · · · · · · Igp ···· ·
    [2]
    14. Vehicle spring according to claim 6, characterized in that the cross-sectional shape of the spring body (20) changes over its length.
    [3]
    15. Vehicle spring according to claim 14, characterized in that the width (B) of the material recess (6) changes over the length of the material recess (6).
    [4]
    16. Vehicle spring according to claim 14 or 15, characterized in that the depth (T) of the material recess (6) changes continuously or discontinuously over the width (B) of the material recess (6).
    [5]
    17. Vehicle spring according to one of claims 11 to 16, characterized in that the spring body (20) has an upper side (2), a lower side (3) and two narrow sides (4, 5) and that at least one material recess (6) in at least a narrow side (4, 5) is provided.
    [6]
    18. Vehicle spring according to one of claims 11 to 17, characterized in that the spring body (20) has an upper side (2), a lower side (3) and two narrow sides (4,5) and that at least one material recess (6) in the Bottom (3) is provided.
    [7]
    19. Vehicle spring according to claim 17 or 18, characterized in that the material recess (6) has a depression of the width b and / or the height h of the spring body (20) in at least one central region of the underside (3) or the narrow side (4 , 5).
    [8]
    20. Vehicle spring according to claim 19, characterized in that the spring body (20) has a longitudinal axis, a transversely to the longitudinal axis extending transverse axis (z), which preferably corresponds to the neutral fiber, and at a right angle to the transverse axis (z) from the bottom ( 3) to the top (2) extending axis (V) and that at least one 30/07/2012 16:57 N °: R472 17/28 P.018 / 025 19/25 30/07/2012 16:52 0043- 1-526-42-45 BEER & PARTNER PATENTA S. ·· »I ι · ιι · · · · | · I · * · ··· • I · · · · · · · * •. .3 ·················································································································································································································································· ) runs.
    [9]
    21. Vehicle spring according to one of claims 11 to 20, characterized in that the spring body {20) has a longitudinal axis, a transversely 2ur longitudinal axis extending transverse axis (z), which preferably corresponds to the neutral fiber, and at right angles to the transverse axis (z) from the bottom (3) to the top (2) extending axis (V) and that the cross-sectional shape to the axis (V) is symmetrical,
    [10]
    22. Vehicle spring according to one of claims 11 to 21, characterized in that the spring body (20) at least partially corresponds in cross section to an I-profile or a U-profile or a T-profile.
    [11]
    23. Vehicle spring according to one of claims 11 to 22, characterized in that the spring body (20) has two longitudinal ends (7, 9) and at least one longitudinal end (7, 9) has a rolled eye (8) or molded eye (11) ,
    [12]
    24. A method for producing a vehicle spring according to one of claims 11 to 23 from a profile bar (1) according to one of claims 1 to 10, characterized in that the profile bar (1) is deformed hot, in particular rolled, is.
    [13]
    25. The method according to claim 24, characterized in that the width (B) of the material recess (6) during the hot deformation over the length of the spring body (20) is changed differently.
    [14]
    26 spring system for a vehicle, characterized in that it comprises at least one vehicle spring according to one of claims 11 to 23. 30/07/2012 16:57 No .: R472 18/28 P.019 / 025
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    同族专利:
    公开号 | 公开日
    AU2013299313A1|2015-02-26|
    CN107882904A|2018-04-06|
    CA3041292A1|2014-02-06|
    US20170314630A1|2017-11-02|
    CA2879890C|2019-12-31|
    CA3041292C|2021-06-15|
    US10890228B2|2021-01-12|
    AU2017248439A1|2017-11-02|
    CN107882904B|2019-08-23|
    EP2880333A1|2015-06-10|
    EP3719341A1|2020-10-07|
    CA2879890A1|2014-02-06|
    EP2880333B1|2020-05-06|
    CN104685257A|2015-06-03|
    US9726245B2|2017-08-08|
    AT513234B1|2019-04-15|
    AU2013299313B2|2017-07-20|
    BR112015001879A2|2017-07-04|
    US20150260251A1|2015-09-17|
    ES2804040T3|2021-02-02|
    CN104685257B|2017-11-28|
    AU2017248439B2|2019-02-21|
    WO2014019002A1|2014-02-06|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA845/2012A|AT513234B1|2012-07-30|2012-07-30|Profile bar and hergestellelle vehicle spring|ATA845/2012A| AT513234B1|2012-07-30|2012-07-30|Profile bar and hergestellelle vehicle spring|
    ES13756802T| ES2804040T3|2012-07-30|2013-07-25|Profiled bar and suspension spring manufactured from said profiled bar|
    US14/418,220| US9726245B2|2012-07-30|2013-07-25|Profiled bar, and vehicle spring produced therefrom|
    PCT/AT2013/000124| WO2014019002A1|2012-07-30|2013-07-25|Profiled bar, and vehicle spring produced therefrom|
    EP20172430.9A| EP3719341A1|2012-07-30|2013-07-25|Sectional bar and vehicle spring made therefrom|
    CN201380050545.7A| CN104685257B|2012-07-30|2013-07-25|Profiled bar and the truck spring made by it|
    CN201711113079.9A| CN107882904B|2012-07-30|2013-07-25|Profiled bar and the truck spring produced by it|
    CA3041292A| CA3041292C|2012-07-30|2013-07-25|Profiled bar, and vehicles spring produced therefrom|
    EP13756802.8A| EP2880333B1|2012-07-30|2013-07-25|Profiled bar, and vehicle spring produced therefrom|
    AU2013299313A| AU2013299313B2|2012-07-30|2013-07-25|Profiled bar, and vehicle spring produced therefrom|
    BR112015001879A| BR112015001879A2|2012-07-30|2013-07-25|profiled bar and vehicle spring made from it|
    CA2879890A| CA2879890C|2012-07-30|2013-07-25|Profiled bar, and vehicle spring produced therefrom|
    US15/652,945| US10890228B2|2012-07-30|2017-07-18|Profiled bar, and vehicle spring produced therefrom|
    AU2017248439A| AU2017248439B2|2012-07-30|2017-10-17|Profiled bar, and vehicle spring produced therefrom|
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