EP3966049A1 - Mehrpunktlenker für ein fahrwerk eines fahrzeugs - Google Patents
Mehrpunktlenker für ein fahrwerk eines fahrzeugsInfo
- Publication number
- EP3966049A1 EP3966049A1 EP20718291.6A EP20718291A EP3966049A1 EP 3966049 A1 EP3966049 A1 EP 3966049A1 EP 20718291 A EP20718291 A EP 20718291A EP 3966049 A1 EP3966049 A1 EP 3966049A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core element
- point link
- shell elements
- roving
- elements
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 239000006261 foam material Substances 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000005304 joining Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 230000000295 complement effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 239000011265 semifinished product Substances 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004619 high density foam Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004046 wet winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/001—Suspension arms, e.g. constructional features
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/026—Constructions of connecting-rods with constant length made of fibre reinforced resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/014—Constructional features of suspension elements, e.g. arms, dampers, springs with reinforcing nerves or branches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/12—Constructional features of arms with two attachment points on the sprung part of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/10—Constructional features of arms
- B60G2206/121—Constructional features of arms the arm having an H or X-shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
- B60G2206/7101—Fiber-reinforced plastics [FRP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/821—Joining by gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/85—Filament winding
Definitions
- Multipoint link for a chassis of a vehicle
- the invention relates to a multi-point link for a chassis of a vehicle according to the preamble of claim 1.
- the present invention also relates to a method for producing a multi-point link for a chassis of a vehicle according to the preamble of claim 14.
- Multipoint links such as a four-point link
- a multi-point link designed as a four-point link takes on the functions of lateral guidance and longitudinal guidance of the rigid axle.
- such a multi-point link fulfills the function of a stabilizer and is thus in the case of rolling movements of a vehicle body that z. B. occur while cornering, exposed to additional rolling loads.
- a multi-point link designed as a three-point link is used in the NutzkraftGermanbe rich in tractor units to tether the axle on the structural frame.
- Three-point links contribute significantly to the transverse and longitudinal guidance of the axle.
- a three-point link guides the axle in an upper link level and is exposed to high longitudinal loads and lateral loads when the utility vehicle is ferrying.
- a multi-point link of the type mentioned is known from DE 10 2016 209 041 A1.
- the multi-point link consists of a core element made of a foam material and at least one roving (fiber bundle del) wrapped around the core element.
- the at least one roving wrapping the core element in at least one layer forms an outer layer of the multi-point link.
- the core element is mainly intended to form the shape of the multi-point link.
- the core element itself is not, or only to a limited extent, provided for absorbing loads, but primarily for filing or wrapping with the roving in order to form a load-bearing support structure.
- Loads and forces that are introduced into the load introduction areas provided for this purpose by a vehicle axle or a wheel carrier in the multi-point link are mainly from at least one Roving formed outer layer of the multi-point link added.
- the core element which is wrapped by the at least one roving during a winding process, specifies the respective component contour of the multi-point link.
- the core element must be able to absorb the forces which the at least one roving, which is held under tension, exerts on the core element during the winding process, in particular at the beginning of the winding process.
- the core element must be very slightly deformed when wrapping around, since the core element is shaping for the multi-point link and essential geometric dimensions (kinematic points) of the multi-point link must be set within tight tolerances.
- the core element known from DE 10 2016 209 041 A1 is designed as a permanent and at the same time massive solid core. The disadvantage of a solid core design is that it has a relatively high mass due to the high density foam material used. Also in the
- a multi-point link for a chassis of a vehicle consisting of a core element made of a foam material and at least one roving wound around the core element made of bundled continuous fibers, the at least one roving wrapping the core element in at least one layer forming an outer layer of the multi-point link, the core element being designed as a hollow body consisting of at least two shell elements.
- the execution of the core element as an at least two-part hollow body has the advantage of a lower mass compared to a solid core.
- the at least two shell elements can be produced more easily and cost-effectively than core elements that are designed as full cores or lost cores with reduced material usage.
- the core element designed as a multi-part hollow body also has the advantage that by remaining inside the layer formed by wrapping, loads can be absorbed during the use phase of the multi-point link.
- the foam material can preferably have a higher density than foam material, which can be used to produce solid cores.
- the roving can be impregnated immediately before the core element is wound, or a roving pre-impregnated with resin (towpreg semi-finished product) can be used.
- a roving pre-impregnated with resin such as, for example, a roving pre-impregnated with resin (towpreg semi-finished product) can be used.
- the roving is soaked in resin and wound around the core element immediately before winding.
- a maximum speed of depositing the roving on the core element is limited to approx. 0.5 m / s due to the loss of resin, for example due to centrifugal forces during winding.
- the laying speed can be increased considerably by using pre-impregnated rovings, since the resin has dried out and centrifugal forces therefore have no influence.
- robot-based 3D fiber winding processes allow targeted, fiber-optimal placement of pre-impregnated rovings at a very high placement speed on a core element with almost any contour.
- a towpreg semi-finished product is preferably used in order to be able to achieve the highest winding speeds. Due to the pronounced stickiness of the pre-impregnated semi-finished product and the multi-axis rotation of the component and rovings by means of one or more robots or bogies, curved winding paths can also be created outside of a geodetic path, i.e. outside a path connecting two points over the shortest possible distance.
- a roving is a bundle, strand or multifilament yarn made of parallel filaments (continuous fibers), which is mainly used in the manufacture of fiber-reinforced plastics or fiber-reinforced plastics. Most often, filaments made of glass, aramid or carbon are combined into rovings.
- the at least two shell elements can preferably be connected to one another in a form-fitting and / or force-fitting and / or cohesive manner.
- the at least two shell elements can be materially connected to one another by gluing.
- Gluing has the advantage that the hollow body forming the core element can be made fluid-tight.
- a form-fitting connection of the at least two shell elements offers the advantage that the positioning of the at least two shell elements can be predetermined when they are joined to the core element.
- the core element can have sections arranged at distal ends for receiving load introduction elements.
- bushings which serve to introduce load and which serve to receive load introduction elements can be arranged in the sections of the core element.
- the load introduction elements can be designed as Ge pivot bearings or elastomer bearings or molecular bearings, the bearing components of which are at least partially absorbed by the sockets.
- the at least two shell elements can be designed symmetrically.
- the core element to be manufactured has two perpendicular axes of symmetry, the at least two shell elements can be manufactured using only one tool.
- the at least two shell elements can preferably have an internal support structure.
- the core element can be stiffened by means of the internal support structure. By providing the internal support structure, the core element can be made thinner-walled, so that a further reduction in mass can be achieved.
- the internal support structure can for example by be formed punctiform or linear spacer elements or ribs.
- the stand elements or ribs preferably extend substantially perpendicular to the inner surface of the respective shell element.
- the spacer elements or ribs can be arranged opposite one another in the position of the shell elements joined to the core element.
- the support structure can be designed as complementary connecting elements which, when the at least two shell elements are joined together, interlock at least in a form-fitting manner.
- the complementary connecting elements can be designed with undercuts.
- the undercuts can be mushroom-shaped or designed as a stop. This enables a type of click connection to be implemented between the at least two shell elements.
- the inner support structure can be designed as an accumulation of material extending in sections over a flat plane of the respective shell element.
- the position and arrangement of the material accumulation can be predetermined, for example, at least partially by the winding paths of the at least one roving.
- An at least partial orientation of the course of the accumulation of material on load paths along which loads can be picked up and forwarded by the multi-point link is also advantageous. It goes without saying that the provision of an accumulation of material can be combined with one another with a support structure consisting of point or line spacing elements or ribs.
- the accumulation of material can form a framework-like structure.
- a high load-bearing capacity and rigidity of the shell elements can be achieved.
- a section-wise wrapping of the at least two brought together shell elements with at least one separate roving can be provided.
- a joining is achieved by tying.
- a connection of the at least two shell elements by material connection, force connection or form connection can be completely or at least partially omitted.
- separate rovings can be arranged in guide channels to reinforce the core element in its interior and / or on its exterior.
- the separate rovings can be arranged automatically using robots.
- the separate rovings can be deposited in the introduced guide channels in such a way that a framework-like structure is formed. This stabilizes the shape of the core element and can absorb higher loads during the subsequent winding process.
- the framework-like structure on the outside of the core element can be attached to the at least one roving, which forms an outer layer of the multi-point link as a result of the wrapping process.
- the support structure of the core element can be reinforced.
- the separate rovings in the core element and on its outside act as truss-like inserts and stiffeners for the supporting structure. Since the separate rovings do not have to be placed on free geodetic paths, but are located in the guide channels, a very free and targeted reinforcement of the structure is possible, for example for certain load cases.
- the shell elements joined together to form the core element can be designed with walls that are essentially perpendicular to one another and that delimit the outer contour, the walls having undercuts which, in the joined state of the shell elements, elements interlock positively.
- the walls have complementary undercuts on mutually facing joining surfaces so that the at least two shell elements, when joined together, engage in one another in sections.
- an adhesive can be applied in this area in order to connect the at least two shell elements to one another in a form-fitting and material-fitting manner.
- the undercuts are designed as projections, for example in the form of steps.
- the at least two shell elements can preferably be designed to be fluid-tight in the joined position, so that a cavity enclosed by the at least two shell elements can be filled with a fluid.
- the fluid-tight execution of the core element can in particular be achieved by a material connection of the shell elements, such as gluing, for example.
- the temporary load-bearing capacity which is required in particular at the beginning of the wrapping with the at least one roving, can be increased.
- the cavity in the core element is temporarily pressurized by an internal pressure by means of a fluid, a liquid or a gas during winding, the core element is additionally stabilized.
- a functional element can preferably be introduced into the core element formed as a hollow body before it is wrapped around.
- an arrangement of electronic components such as a circuit board, an energy storage device, a data storage device, a radio module and the like, is conceivable before joining and then wrapping around the core element.
- Functional elements of this type can be used, for example, for a system for damage detection or for recording load cycles of the multi-point link.
- the advantage of the multi-part core element is that the functional elements can simply be installed before the core is joined.
- the object set at the beginning is achieved by a method for producing a multi-point link with the features according to claim 14.
- a method for producing a multi-point link for a chassis of a vehicle according to one of claims 1 to 13 is proposed, which is characterized by the following method steps:
- the implementation of the core element as an at least two-part hollow body has the advantage of a lower mass compared to a solid core.
- the at least two shell elements can be produced more easily and cost-effectively than core elements that are designed as full cores or lost cores with reduced material usage.
- the core element designed as a multi-part hollow body also has the advantage that it can absorb loads during the use phase of the multi-point link.
- the foam material can preferably have a higher density than foam material, which can be used to produce full cores.
- 1 a to 1 c are schematic views of multipoint links for a chassis of a vehicle
- Fig. 3 schematically shows a perspective partial view of a core element of the
- Fig. 4 schematically the core element according to Figure 3 with a transparent Darge presented shell element; 5 schematically shows a sectional view of the core element along the line AA according to FIG. 3;
- FIG. 6 shows a detailed view X according to FIG. 5;
- FIG. 8 schematically shows a perspective partial view of a core element with an outside support structure
- FIG. 9 shows a schematic representation of a guide channel for depositing a support structure designed as at least one separate roving on the outside of the core element.
- Fig. 10 is a schematic representation of a guide channel according to a wide Ren embodiment.
- FIGS. 1 a to 1 c are schematic views of various Mehryaklen core 1 for a - not shown - chassis of a vehicle.
- 1 a shows a multi-point link 1 designed as a three-point link.
- the multi-point link 1 comprises a body 2 which has several force introduction regions 4 which are connected to one another by a connecting structure 3.
- the body 2 essentially matches the basic shape of the multipoint link 1.
- a multipoint link 1 designed as a four-point link or a five-point link is shown as an example.
- Multipoint control arms 1 can connect kinematic points in a chassis and / or in a wheel suspension and transmit movements and / or forces.
- the connection of the multi-point link 1 with further components of the chassis can be realized by means of joints which are arranged in the force introduction areas 4.
- the illustration in FIG. 2 shows a schematic plan view of a multi-point link 1 designed as a four-point link.
- the multi-point link 1 according to the invention comprises a core element 5, which consists of a foam material, and at least one roving 10 made of bundled continuous fibers wound around the core element 5, the at least one roving 10 wrapping around the core element 5 in at least one layer, an outer layer of the multi-point link 1 forms.
- the core element 5 has a torsion element 6 and four support arms 7 that are integrally connected to the torsion element 6. At the distal ends of the support arms 7, sections 8 are arranged to receive load introduction elements.
- a bushing 9 for receiving a respective - not shown - designed as a joint bearing ger or elastomer bearing is arranged on the respective section 8.
- the multi-point link 1 designed as a four-point link is used, for example, in a commercial vehicle as a chassis connection and combines the tasks of a separate wishbone and a separate roll stabilizer in a single chassis component.
- multi-point link 1 takes on the task of transverse guidance and longitudinal guidance of a rigid axle as well as roll stabilization.
- FIG. 3 a perspective partial view of only the core element 5 according to FIG. 2 is shown schematically.
- the core element 5 is designed according to the invention as a hollow body, which consists of at least two shell elements 1 1, 12, which are joined together.
- the lower shell element 1 1 and the upper shell element 12 are designed as half-shells.
- the at least two shell elements 1 1, 12 are preferably designed symmetrically.
- the shell elements 1 1, 12 designed as half shells have a substantially U-shaped profile cross-section.
- the shell elements 1 1, 12 joined together to form the core element 5 have walls 13, 14 that are essentially perpendicular to one another.
- the walls 13, 14 limit the outer contour of the respective shell element 1 1, 12.
- End faces on the walls 13, 14 form contact surfaces 15, 16 extending transversely to the walls 13, 14 which the shell elements 1 1, 12 lie on top of one another after joining.
- an adhesive can be applied to one or both contact surfaces 15, 16 before joining, whereby a material connection of the at least two shell elements 11, 12 is achieved.
- the material connection also makes it possible to make the core element 5 fluid-tight.
- Fig. 4 shows schematically the core element 5 according to FIG. 3 with an upper shell element 12 which is transparently provided. Due to the transparent representation of the upper shell element 12, there are in the interior of the two shell elements 11, 12 opposing, in particular complementary, connecting elements 17 , 18 visible.
- the connecting elements 17 of the lower shell element 11 can be designed as cylindrical pins and the connecting elements 18 of the upper shell element 12 as hollow cylindrical sections into which the connecting elements 17 designed as cylindrical pins can be inserted.
- the connecting elements 17, 18 can be used to define the at least two shell elements 11, 12 with regard to their positioning during joining.
- connecting elements 17, 18 function as a support structure 19 in the interior of the core element 5. This reinforces the core element 5, which increases the load-bearing capacity of the core element 5, particularly at the beginning of the winding process.
- the support structure 19 in the interior of the respective shell element 11, 12 can alternatively be designed as ribs or as point and / or line-shaped spacer elements.
- the ribs or point and / or line-shaped spacer elements are on top of one another, so that the compressive forces absorbed when winding the core element 5 with the at least one roving 10, which result from the thread tension of the roving 10, are not due lead to an undesired deformation of the core element 5.
- FIG. 5 a sectional view of the core element 5 along the line AA according to FIG. 3 is shown schematically. The section through two of the connecting elements 17,
- the connecting elements 17, 18 illustrates the positive connection between the two shell elements 1 1, 12 by the connecting elements 17, 18.
- two tools are generally required to connect the shell elements 1 1, 12 with the complementary Connecting elements 17, 18 to form.
- the use of only one tool is conceivable if the core element 5 to be produced has at least two perpendicular axes of symmetry and the symmetry conditions are used accordingly.
- Fig. 6 shows a detailed view X according to FIG. 5.
- the walls 13, 14 of the shell elements 1 1, 12 each have undercuts 29 which interlock positively when the shell elements 1 1, 12 are joined. In this way, the shell elements 1 1, 12 are secured at least against displacement in the transverse direction of the core element 5.
- the undercuts 29 are designed here as projections in the form of steps.
- FIG. 7 a further embodiment of the core element 5 according to FIG. 3 is shown schematically with an upper shell element 12 shown transparently.
- This embodiment also has a support structure 19, which is designed as an in particular structured material accumulation 20 extending in sections over an inner flat plane of the respective shell element 11, 12.
- the course of the accumulation of material 20 on the respective inside of the shell elements 1 1, 12 can preferably correspond to a framework-like structure.
- the outside support structure 21 consists of at least one separate roving 22, 23, 24, 25.
- several separate rovings 22, 23, 24, 25 are provided in order to the at least two shell elements 1 1, 12, which are put together to form the core element 5 join and connect with each other.
- undercuts on the contact surfaces 15, 16 or the gluing of the at least two shell elements 1 1, 12 to one another can be dispensed with.
- an additional stabilization of the core element 5 is achieved by the separate rovings 22, 23, 24, 25, whereby this can absorb higher loads during the subsequent winding process.
- guide channels 26 are arranged in the surface on the outside of the at least two shell elements 1 1, 12, as is shown schematically in FIG. 9. These guide channels 26 can already be introduced into the shell elements 1 1, 12 during the manufacturing process. Alternatively, the guide channels 26 can be introduced by subsequent machining of the surface of the shell elements 11, 12 or the already joined core element 5.
- the guide channels 26 are preferably arranged independently of geodetic trajectories.
- the separate rovings 22, 23, 24, 25 can be freely placed on the surface of the shell elements 1 1, 12 in order to specifically generate a course of the support structure 21 that at least partially provides a separate storage area independent of the outer shape of the core element 5 Rovings 22, 23, 24, 25 are made possible. Reference is made to the courses of the separate rovings 24 and 25 by way of example.
- the storage of the rovings 24 and 25 serves to fix and tension the roving 22, which surrounds the core element 5 in the circumferential direction along the narrow, perpendicular wall 14, in the guide channel 26 provided for this purpose.
- the separate rovings 22, 23, 24, 25 can also be arranged by means of a robot and preferably form a framework-like structure.
- the separate rovings 22, 23, 24, 25, with which the at least two shell elements 11, 12 are tied around and joined, are connected to the roving 10 wound around the core element 5 to form an outer layer.
- the support structure of the core element 5 is reinforced.
- the separate rovings 22, 23, 24, 25 act on the surface of the core element as truss-like inserts and stiffeners of the supporting structure. Since the separate rovings 22, 23, 24, 25 are not placed on free geodetic paths the must, but are located in the guide channels 26, a very free and targeted reinforcement of the structure is possible, for example for certain load cases.
- FIG. 9 shows a schematic representation of a guide channel 26 for depositing a support structure 21 formed from at least one separate roving 23 on the outside of the core element 5 and the guide channel 26 with a roving 23 placed therein.
- the guide channel 26 is provided as a recess executed arc-shaped according cross-section in which the separate roving 23 is deposited.
- the guide channel 26 can have undercuts 28 on wall sections 27 delimiting the guide channel 26 according to a further development shown in FIG. In this way, in particular, better lateral fixation of the separate rovings 22, 23, 24, 25 deposited in the guide channels 26 is achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019206435.3A DE102019206435A1 (de) | 2019-05-06 | 2019-05-06 | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
PCT/EP2020/060017 WO2020224906A1 (de) | 2019-05-06 | 2020-04-08 | Mehrpunktlenker für ein fahrwerk eines fahrzeugs |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3966049A1 true EP3966049A1 (de) | 2022-03-16 |
Family
ID=70277393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20718291.6A Withdrawn EP3966049A1 (de) | 2019-05-06 | 2020-04-08 | Mehrpunktlenker für ein fahrwerk eines fahrzeugs |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220212511A1 (de) |
EP (1) | EP3966049A1 (de) |
CN (1) | CN113874231A (de) |
DE (1) | DE102019206435A1 (de) |
WO (1) | WO2020224906A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019206436A1 (de) * | 2019-05-06 | 2020-11-12 | Schäfer MWN GmbH | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
Family Cites Families (140)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US369883A (en) * | 1887-09-13 | Connecting-rod | ||
US2274417A (en) * | 1938-10-10 | 1942-02-24 | Katcher Morris | Joint assembly for shock absorbers and the like |
US2723705A (en) * | 1950-07-21 | 1955-11-15 | Owens Corning Fiberglass Corp | Method and apparatus for making reinforced plastic laminates |
US3111569A (en) * | 1958-06-20 | 1963-11-19 | Rubenstein David | Packaged laminated constructions |
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2019
- 2019-05-06 DE DE102019206435.3A patent/DE102019206435A1/de active Pending
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2020
- 2020-04-08 EP EP20718291.6A patent/EP3966049A1/de not_active Withdrawn
- 2020-04-08 CN CN202080034440.2A patent/CN113874231A/zh active Pending
- 2020-04-08 WO PCT/EP2020/060017 patent/WO2020224906A1/de active Search and Examination
- 2020-04-08 US US17/609,051 patent/US20220212511A1/en active Pending
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US20220212511A1 (en) | 2022-07-07 |
WO2020224906A1 (de) | 2020-11-12 |
CN113874231A (zh) | 2021-12-31 |
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