WO2019223957A1 - Fahrwerklenker für ein kraftfahrzeug - Google Patents
Fahrwerklenker für ein kraftfahrzeug Download PDFInfo
- Publication number
- WO2019223957A1 WO2019223957A1 PCT/EP2019/060844 EP2019060844W WO2019223957A1 WO 2019223957 A1 WO2019223957 A1 WO 2019223957A1 EP 2019060844 W EP2019060844 W EP 2019060844W WO 2019223957 A1 WO2019223957 A1 WO 2019223957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- section
- hollow profile
- longitudinal direction
- load introduction
- introduction element
- Prior art date
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
- B29C65/5085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
- B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/124—Tongue and groove joints
- B29C66/1248—Interpenetrating groove joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
- B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
- B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
- B29C66/52431—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces with a right angle, e.g. for making L-shaped pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
- B29C66/5244—Joining profiled elements for forming fork-shaped connections, e.g. for making window frames or Y-shaped pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/524—Joining profiled elements
- B29C66/5245—Joining profiled elements for forming cross-shaped connections, e.g. for making window frames or X-shaped pieces
- B29C66/52451—Joining profiled elements for forming cross-shaped connections, e.g. for making window frames or X-shaped pieces with four right angles, e.g. for making +-shaped pieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/001—Profiled members, e.g. beams, sections
- B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3002—Superstructures characterized by combining metal and plastics, i.e. hybrid parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/75—Shafts
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- 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
- B60G2206/012—Hollow or tubular elements
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- 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
- B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
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- 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]
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- 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
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/30—Material joints
- F16C2226/40—Material joints with adhesive
Definitions
- the invention relates to a component for a motor vehicle, comprising a hollow profile section made of a fiber-reinforced plastic and a load introduction element made of a metallic material, according to the preamble of patent claim 1.
- Components for motor vehicles comprising a hollow profile section made of a fiber-reinforced plastic and a load introduction element made of a metallic material, are known from the prior art.
- DE 10 2010 053 843 A1 discloses a strut-shaped component made of fiber-reinforced plastic, which is designed as a tubular hollow profile.
- the strut-shaped component is connected via a non-detachable plug connection to a designated as an intermediate load introduction element made of a metallic material, wherein the non-detachable plug connection is formed as an adhesive connection.
- one end of the strut-shaped component is first coated with an adhesive layer.
- the thus coated end is inserted into a sleeve-shaped receiving space of the load introduction element, after which the adhesive layer comes into contact with the walls of the sleeve-shaped receiving space and unfolds its function.
- the end of the strut-shaped component is externally peripherally bonded to an inner wall of the sleeve-shaped receiving space.
- the load is introduced into the struts-shaped component made of fiber-reinforced plastic only over the outer circumference of the tubular hollow profile end. The load is therefore not introduced uniformly into the hollow profile, whereby in the connection region in which the two joining partners are glued together, the outer peripheral regions of the hollow profile end are more stressed than the inner circumferential regions of the hollow profile end.
- a failure occurs here at critical load, characterized in that the outer, outer peripheral position of the hollow profile end is detached from the rest of the hollow profile end. This practically means that the edge layer of the hollow profile end tears off.
- the hollow profile is supported only slightly, so that voltage peaks occur locally at the transition from the glued hollow profile end to the free hollow profile area.
- the object of the invention is to provide a component for a motor vehicle, which is designed as an at least partially made of fiber-reinforced plastic existing lightweight component and with the same time relatively high loads can be transmitted.
- the invention accordingly provides a component for a motor vehicle.
- the component has a hollow profile section made of a fiber-reinforced plastic and a load introduction element made of a metallic material.
- the hollow profile section and the load introduction element are connected to one another in a common connection section via a non-detachable, glued plug connection.
- an end portion of the load introduction element and an end portion of the hollow profile section engage each other mutually and at least substantially form-fitting manner.
- the component is designed as a chassis link for a motor vehicle and the end portion of the load introduction element has a spline having at least substantially in the longitudinal direction of the common connecting portion extending teeth, whereby the rigidity of the end portion of the load introduction member is reduced in the longitudinal direction of the common connecting portion.
- the hollow profile section and the load introduction element are connected to one another in the common connection section by an adhesive.
- the stresses in such an adhesive are basically relatively high, for example in the case of tensile stress in a common connecting section as described above, when a hollow profile section consists of fiber-reinforced plastic and has significantly lower rigidity than a load introduction element made of metal, for example of aluminum.
- the rigidity of the load introduction element in common connecting portion of the hollow profile section and load introduction element in the longitudinal direction of the connecting portion reduced by geometric measures, namely by the spline.
- the end portion of the load introduction element is not solid, but reduced by the volume of spaces between the teeth.
- the rigidity of the end portion of the load introduction member in the longitudinal direction of the common connection portion is reduced at a tensile load of the connection portion.
- a tensile load tries to pull out the end portion of the hollow profile section from the spline in the longitudinal direction of the connecting portion.
- the stiffness reduction of the load introduction member in the longitudinal direction of the joint connecting portion is due to the fact that the teeth of the spline undergo a tensile elastic strain in the longitudinal direction of the connecting portion than would be the case with a solid embodiment of the end portion of the load introduction member.
- a reduced rigidity of the end section of the load introduction element in the longitudinal direction of the common connection section is also present under a compressive load.
- this reduced stiffness is given under compressive load when the hollow profile section is not inserted in the longitudinal direction of the common connecting portion to the stop in the spline, but between a load introduction element facing end side of the hollow profile section and a bottom of the spline remains a gap.
- this gap is expired with adhesive.
- the teeth have a length which is substantially at least twice as large as a maximum width of the teeth, whereby a relatively high elastic elongation capacity of the spline in the longitudinal direction of the common connecting portion is given both in a tensile load and under a compressive load.
- the teeth are formed integrally with the load introduction element.
- the longitudinal extent of the connecting portion in the longitudinal direction corresponds to an insertion depth the hollow profile section is inserted into the spline of the load introduction element.
- the hollow profile section can be inserted in the longitudinal direction of the connecting section as far as it will go into the spline or be spaced from this maximum position by the gap described above.
- the spline is particularly advantageous in tensile and / or compressive stress; but also favorable for torsional and / or bending stress.
- a suspension link is to be understood as meaning a rod-shaped or another component which extends in one or more spatial directions and is suitable for transmitting forces and / or moments.
- the suspension link may be, for example, a two-, three-, four- or five-point link, wherein the two-point link may be formed, for example, as an axle strut or as a torque arm.
- tensile and / or compressive forces which are introduced via the or the load introduction element (s) in the hollow profile section, acting on the suspension arm.
- bending and / or Torsionsmomente can act on the suspension arm.
- the suspension link is, in particular, a built-under suspension link, that is to say a suspension link assembled from a plurality of separately produced individual parts.
- This design has the advantage over a one-piece suspension arm that, for example, the hollow section section can be made variable in length, whereby different variants of the suspension arm can be realized according to a modular principle.
- the hollow profile section has a cross-sectional shape that deviates from a circular shape, because hollow profile sections with a circular ring cross-section can be held by torsion stress in the circumferential direction only by the adhesive.
- cross-sectional shapes deviating from a circular shape can additionally be positively supported in the circumferential direction when the end section of the Load introduction element has shape-corresponding support areas.
- the hollow profile section has a non-circular cross-sectional shape.
- a load introduction element is to be understood as an element which is structurally connected to the hollow profile section and can introduce operating loads such as forces and / or moments into the hollow profile section.
- a hollow profile section is to be understood in the context of the present invention, a portion of an endless profile.
- the wall thicknesses of the hollow profile section are significantly smaller compared to its cross section.
- the wall thicknesses of the hollow profile section amount to 10 to 20 percent, particularly preferably 10 to 15 percent, of the outer dimensions of the hollow profile section, if it has a cross-sectional geometry that can be circumscribed by a square lying substantially against outer surfaces.
- the hollow profile section has at least one cavity, which is formed as a circumferentially closed chamber.
- the hollow profile section has a constant cross-sectional geometry over its longitudinal extent.
- the hollow profile section may be formed straight or curved over its longitudinal extent.
- the hollow profile section in addition to a supporting, over its longitudinal extension constant cross-section additional function integrating elements which also extend over the entire length of the hollow profile section or only over a partial length.
- a cross-sectional area of the hollow profile section containing the function-integrating elements is first of all likewise formed over its entire length and is subsequently separated as required, for example by sawing.
- Function-integrating elements can be used, for example, for connecting pipes or hoses for liquid transport or as a cable holder or as a holder for sensor or actuator elements or as carriers of electronic components, for example for damage detection, or as a mounting surface.
- the load introduction element has an opening oriented perpendicular to the longitudinal direction of the connection section.
- the opening may be pot-shaped with an opening; for example, to receive a Steering ball of a ball stud of a ball joint.
- the opening may also be formed as a passage opening; for example, with a cylindrical passage opening for receiving a molecular joint, which is also referred to as Pratzengelenk.
- the passage opening in the installed state has an unprocessed inner circumferential surface.
- the load introducing member may have a through hole which has a raw inner peripheral surface in the raw state; However, in the installed state has a finished, machined by machining, inner peripheral surface. In the passage opening a steel bushing can be used.
- the longitudinal direction of the connection section corresponds to the longitudinal direction of the hollow profile section.
- the longitudinal direction of the connection section corresponds to the longitudinal direction of a tangent which is applied to the end section of the hollow profile section. Even if the hollow profile section is curved, the longitudinal directions of the end section of the hollow profile section, of the end section of the load introduction element and of the connection section are at least substantially the same in order to ensure at least relatively uniform force and / or torque transmission between the load introduction element and the hollow profile section.
- the length of the connecting portion substantially corresponds to an outer dimension of the cross section of the hollow profile.
- a relatively large length of the connecting portion is given. This has an effect especially at loads of the suspension arm at higher temperatures, if the adhesive softens somewhat under the influence of temperature and thus becomes more elastic.
- the adhesive bond is also claimed in the area of a tooth root when the suspension arm is subjected to tensile stress.
- the relatively large length of the connecting portion quasi a load capacity reserve at relatively high ambient temperatures.
- a significantly greater length of the connecting portion increases the carrying capacity of the connection of load application element and hollow profile section no longer significant.
- a significantly shorter length of the connecting section leads to a reduction of the load capacity.
- the fiber-reinforced hollow profile section is a pultruded, thus produced in a pultrusion process, hollow section section.
- the pultrusion process is a process for the cost-effective production of fiber-reinforced plastic profiles in a continuous process.
- the hollow profile section has reinforcing fibers which are distributed over the entire profile cross section and which extend in a profile longitudinal direction, whereby a high rigidity and strength is effected in this direction.
- relatively high proportions of stretched fibers in edge regions of the profile cross-section and at the same time also running in the profile longitudinal direction are advantageously arranged.
- all fibers are oriented in the longitudinal direction of the hollow profile section.
- the hollow profile section has in a preferred embodiment, a fiber volume content of about.
- the matrix system is advantageously made of a vinyl ester resin, since this can be well processed with very good chemical and mechanical properties in the pultrusion process.
- vinyl ester resin has good adhesion in combination with some important adhesives.
- an epoxy resin, a polyester resin, phenolic resin or polyurethane resin may be used as the matrix material.
- the glued connector has in particular an epoxy adhesive.
- other adhesives such as methyl methacrylate adhesives can be used.
- a hollow profile section designed especially for higher torsional stresses can be produced in the pultrusion process by inserting, weaving in or wrapping fibers or fabrics which extend at +/- 45 degrees to the longitudinal direction of the hollow profile section. Aligned and at the same time are integrated in walls of the hollow profile section.
- the pultring method can be used for the production of the hollow profile section, which combines the Pultrusions- and additionally a winding process.
- the end section of the load introduction element and the end section of the hollow profile section form free ends of the load introduction element or the hollow profile section.
- the load introduction element may be part of an articulated mounting of the suspension link or alternatively serve for the connection of two or more hollow profile sections or serve as part of an articulated mounting of the suspension link and at the same time for the connection of two or more hollow profile sections.
- the hollow profile section is at least partially visible in the region of the connecting section; thus forms part of an outer peripheral surface of the connecting portion.
- portions where the hollow profile portion forms the outer peripheral surface of the connection portion are located flush with the portions where the end portion of the load introduction member forms the outer peripheral surface of the connection portion.
- at least partially an adhesive forms the outer peripheral surface of the connecting portion.
- the teeth of the spline are glued partly with outer peripheral surfaces and partly with inner peripheral surfaces of the end portion of the hollow profile section. Since the hollow profile section has a substantially larger surface area compared with a solid solid profile section with an equally large cross-sectional area, the introduction of force into the fiber composite of the hollow profile section can take place via an increased connection surface. By increasing the adhesive surface between the end portion of the load introduction element and the end portion of the hollow profile section increased load capacity of the suspension arm is achieved. Due to the additional use of inner peripheral surfaces of the end portion of the hollow profile section moreover a more homogeneous load introduction into the hollow profile section is achieved.
- the spline causes, especially if it has a relatively large number of teeth, in a bending stress of the chassis component a predominantly positive force transmission to relatively many surfaces of the hollow profile section. This is also due to the fact that the teeth at their free, the hollow profile section facing ends perpendicular to the longitudinal direction of the connecting portion have a certain compliance. In this way, a significant reduction of the above-described local stress peaks at the transition from the glued-in end portion of the hollow profile section to the free region of the hollow profile section is achieved with a bending stress.
- the proposed design of the end portion of the load introduction element in conjunction with the design of the end portion of the hollow profile section with the relatively small wall thickness and the at least one cavity of the hollow profile section allows a uniform load application and load distribution in the connecting portion.
- the load is distributed in the connecting portion via the edge layer of the hollow profile section in the interior of its wall or vice versa of the hollow profile section on the surface of the teeth of the load introduction element.
- the connection surfaces of the relatively many teeth in the region of the connecting section allow a quasi-positive force transmission and consequent significant reduction of voltage spikes.
- the hollow profile section has a closed cross section, which provides a relatively large area moment of inertia and at the same time a relatively large torsion moment of inertia.
- the spline has at least five teeth, of which at least one engages in the at least one cavity of the hollow profile section.
- inner surfaces of the cavity, in particular the chamber represent the inner peripheral surfaces of the end portion of the hollow profile section with which the teeth the splines are glued.
- the at least four further teeth enclose the end portion of the hollow profile section.
- the four other teeth are in particular four, based on the cross-sectional geometry, each about 90 degrees offset outer sides of the hollow profile section, for example, when the hollow profile section is formed in the simplest case as a rectangular or square tube.
- Outer peripheral surfaces of the hollow profile section may be in this context all surfaces which are wetted in a complete immersion of the hollow chamber profile in a water bath, with prior sealing of the at least one, circumferentially closed chamber.
- the spline surrounds the end portion of the hollow profile section only partially, in particular such that the end portion of the hollow profile section is partially exposed circumferentially.
- the end section of the load introduction element is preferably penetrated by lattice-like passageways extending perpendicularly to the longitudinal direction of the connection section and at the same time, at least partially, cutting.
- an imaginary solid solid cross-section of the end portion of the load introducing element reduces around the material of the through grooves. Since the through-grooves penetrate the end portion of the load-introducing element in a lattice-like manner, the teeth of the spline constitute the remaining material.
- the resulting reduced rigidity of the end portion of the load-introducing element of a metallic material is advantageous for the above-mentioned reasons in the bonding to the end portion of the hollow profile section of a fiber-reinforced plastic.
- the passage grooves intersect at an angle of substantially 90 degrees.
- the passage grooves for forming the grid-like structure extend in two directions.
- each of a plurality of through grooves in each of the two directions perpendicular to the longitudinal direction of the connecting portion extend parallel to each other.
- through-grooves which extend in the same direction perpendicular to the longitudinal direction of the connecting section are preferably of identical geometrical design.
- the teeth of the spline have a rectangular shape over their longitudinal extent in the longitudinal direction of the end portion of the load introduction element or square solid section, wherein the longitudinal direction of the end portion is preferably identical or at least substantially identical to the longitudinal direction of the connecting portion.
- the passage grooves at least partially have a straight course in the longitudinal direction of the end portion of the load introduction element. This means that some through-grooves may be straight-lined and others not.
- the longitudinal directions of the connecting portion, the end portion of the load introduction element and the end portion of the hollow profile section are exactly congruent or at least substantially congruent.
- the teeth are adjacent to passage grooves at least with two out of four longitudinal sides extending in the longitudinal direction of the end portion of the load introduction member.
- the teeth can adjoin through-grooves with two, three or four longitudinal sides extending in the longitudinal direction of the end section of the load introduction element.
- the passage grooves in the longitudinal direction of the connecting portion at least partially on an extension deviating from a rectilinear extent.
- through-grooves which run perpendicular to the longitudinal direction of the connecting section and at the same time parallel to one another in the same direction, have the extension deviating from a straight-line extension.
- these passage grooves then deviate, in particular in the same way, from a rectilinear extent.
- these through grooves are also geometrically identical.
- the through-grooves, which have the extension deviating from a rectilinear extent have unprocessed surfaces.
- the through-grooves which have the extension deviating from a rectilinear extension, have a curved course with a constant radius of curvature in the longitudinal direction of the connecting section, which preferably corresponds to the radius of curvature of the associated end section of the hollow profile section.
- the through-grooves which have the extension deviating from a rectilinear extent, extend exactly in the longitudinal direction of the connecting section in the region of the toothed feet and leave this direction towards the free ends of the teeth to a small extent. It can therefore also be said in this embodiment that also the through-grooves, which have the deviating from a rectilinear extension, extending in the longitudinal direction of the connecting portion.
- the through-grooves extending perpendicular to the longitudinal direction of the connecting section have a constant width in a first direction and a varying width in a second, second direction extending perpendicular to the first direction.
- all the passage grooves that extend in the same direction perpendicular to the longitudinal direction of the connecting portion are similarly formed; So they have a constant or a variable width.
- the passageways of constant width have a machined, preferably machined, in particular milled, surface.
- the passageways of varying width have an unprocessed, in particular extruded, surface, whereby no processing costs are incurred.
- the passageways of varying width have an increased width in the region of the tooth roots and / or in the region of the free ends of the teeth.
- free, the hollow profile section facing, ends of the teeth perpendicular to the longitudinal direction of the connecting portion has a minimum cross-sectional area.
- teeth of the spline, based on their course in the longitudinal direction of the connecting portion, at their free ends have the smallest cross-sectional area.
- the teeth at their free ends on an additionally reduced rigidity in the longitudinal direction of the connecting portion.
- the free, the hollow profile section facing, ends of the teeth perpendicular to the longitudinal direction of the connecting portion at least in a direction of extension a higher distance from each other than this is the case in at least one other area in the longitudinal direction of the connecting section.
- the adhesive by which the end section of the load introduction element is connected to the end section of the hollow profile section, at least partially has an increased layer thickness in the region of the free ends of the teeth.
- variable width passageway grooves have a minimum width over their longitudinal extent in the longitudinal direction of the connection portion in a central portion of the end portion of the load introduction member.
- the teeth of the spline teeth on tooth roots, where the teeth pass into solid material of the load introduction element, to further reduce the rigidity of the end portion of the load introduction element in the longitudinal direction of the connecting portion at least partially tapered.
- toothed feet are tapered on their longitudinal sides, which adjoin passageways of variable width. Since the hollow profile section has a constant cross section over its longitudinal extension, an at least partially thickened adhesive layer thus results in the area of the tooth roots.
- widened interdental spaces in the region of the tooth roots, which result from the tapered tooth roots are filled with adhesive. As a result of the increased adhesive layer thickness so local stresses are reduced in the adhesive layer and distributed more uniformly over the entire connecting portion.
- At least one tooth of the spline toothing is continuously tapered over its longitudinal extension to the hollow profile section.
- the at least one tooth on its tooth root has a maximum cross-sectional area, which decreases continuously towards its free end, to finally have a minimum at its free end.
- the at least one tooth perpendicular to the longitudinal direction of the connecting portion at the same time at its free end to a continuously reducing rigidity in the longitudinal direction of the common connecting portion.
- the continuous taper of the at least one tooth also contributes to a continuous transition of the rigidity ratios in the longitudinal direction of the common connecting portion.
- the at least one tooth which continuously tapers towards the hollow profile section is a canine, with two longitudinal sides which extend in the longitudinal direction of the end section of the load introduction element and adjoin passage grooves.
- the load introduction element has a plurality of plug-toothed end sections for receiving a plurality of end sections of a plurality of hollow profile sections.
- the longitudinal directions of the individual end sections may in this case have an angle of 90 degrees to one another or an angle deviating from 90 degrees.
- two longitudinal directions of the individual end sections may have an angle of 180 degrees relative to each other, in particular if the load introduction element inter alia or exclusively serves to connect at least two hollow profile sections to one another.
- all teeth of the spline each have two unprocessed longitudinal sides, which extend at least substantially in the longitudinal direction of the connecting portion. Since the end portion of the load introduction element and the end portion of the hollow profile section in particular not directly abut each other - at least not full surface, but a slight, tolerance-compensating distance from each other, it is sufficient and also cost-effective to leave the longitudinal sides of the teeth at least partially unprocessed.
- the load introduction element is advantageous as a profile section, in particular an extruded profile section, with unprocessed outer circumferential surfaces and / or inlet sections. nen strikess vom extending in a profile longitudinal direction formed.
- outer peripheral surfaces of the profile section can be any surfaces which are wetted by a complete immersion of the profile section in a water bath, with the previous sealing of possibly existing cavities.
- Inner peripheral surfaces are, in the presence of extending in the longitudinal direction of the profile section cavities, the remaining surfaces.
- a profile section is to be understood as meaning a section of an endless profile.
- the profile section has a constant cross-sectional geometry over its longitudinal extent.
- the profile section in addition to a load-bearing, over its longitudinal extension, cross-section additional function integrating elements which also extend over the entire length of the profile section or only over a partial length.
- a cross-sectional area of the profile section containing the function-integrating elements is first of all likewise formed over its entire length and is subsequently separated as required, for example by sawing.
- Function-integrating elements can be used, for example, for connecting pipes or hoses for liquid transport or as a cable holder or as a holder for sensor or actuator elements or as a carrier of electronic components, for example for damage detection, or as a mounting surface.
- a first load introduction element has a first profile longitudinal direction and a second load introduction element has a second profile longitudinal direction deviating from the first profile longitudinal direction.
- the first profile longitudinal direction and the second profile longitudinal direction have an angular offset of 90 degrees.
- two first load introduction elements and one second load introduction element may be provided as described above.
- the splines of the load introduction element, with the teeth extending at least substantially in the longitudinal direction of the connection section have passage grooves which extend at an angle deviating from 90 degrees to the profile longitudinal direction of the load introduction element.
- the passage grooves extend partly at an angle deviating from 90 degrees to the profile longitudinal direction of the load introduction element and partly at an angle of exactly 90 degrees.
- the latter through grooves, which extend at an angle of exactly 90 degrees to the profile longitudinal direction of the load introduction element, unprocessed, for example, resulting from an extrusion process, surfaces.
- End portions of load input members having through grooves extending at an angle other than 90 degrees to the profile longitudinal direction of the load input member may have sawn outer surfaces which also extend at an angle other than 90 degrees to the profile longitudinal direction of the load input member. These sawn outer surfaces are derived from an oblique sawing of the load introduction element of a profile bar. In this case, both the passage grooves and the aforementioned extend External surfaces preferably in the same angle other than 90 degrees to the profile longitudinal direction of the load introduction element.
- the hollow profile section is designed as a multi-chamber profile section.
- the hollow profile section when viewed in cross section, has at least two cavities formed as circumferentially closed chambers.
- a multi-chamber profile section can, depending on the geometric structure and the arrangement of the plurality of chambers to each other, the area moment of inertia of the hollow profile section can be increased. This has an effect, in particular in the case of a bending load and / or in the case of a torsional load, but also under a compressive load, to the effect that higher forces and / or moments can be transmitted.
- the multi-chamber profile section has in cross-section at least one transverse web, by means of which the plurality of chambers of the multi-chamber profile section are separated from one another.
- a transverse web permits additional attachment surfaces which have an equalizing effect on the stress distribution in the adhesive layer.
- the multi-chamber profile section may have more than one transverse web.
- the hollow profile section when viewed in cross-section, to increase the bending stiffness and / or the torsional stiffness and / or the buckling stiffness on at least one outwardly projecting rib.
- the at least one rib forms a rectangular or square partial cross section of the hollow profile section cross section.
- an increase of the adhesive surface between the end section of the load introduction element and the end section of the hollow profile section is possible.
- the at least one outwardly projecting rib causes an increase of the area moment of inertia and of the torsional moment of inertia of the hollow profile section.
- a longitudinal side of the rib forms an outer surface of the connecting portion.
- the rib extends in the longitudinal direction of the connecting portion between two teeth of the spline. If a plurality of ribs are arranged on a cross-sectional side of the hollow profile section, recesses are created between the ribs, whereby the possibility is generated that in this additional borrowed surface of the hollow profile section can engage further teeth of the spline.
- the hollow profile section when viewed in cross section, at least four ribs projecting outwardly. In particular, two of these at least four ribs, based on the cross section of the hollow profile section, arranged in pairs diagonally opposite one another.
- the hollow profile section projects from its outer and / or inner circumferential surfaces narrow thickenings, by means of which the end section of the load introduction element and the end section of the hollow profile section are kept at a minimum distance.
- the thickenings extend strip-shaped in the longitudinal direction of the hollow profile section over its entire length. The thickenings serve on the one hand to achieve a minimum layer thickness and on the other hand to achieve a uniform layer thickness of the adhesive, which connects the end portion of the load introduction element and the end portion of the hollow profile section.
- the surfaces of the end portion of the hollow profile section, which are outside the thickening, are kept at a minimum distance from the end portion of the load introduction member.
- the thickenings constitute guide surfaces.
- the thickenings from the outer and / or inner peripheral surfaces of the hollow profiled section project by less than 0.5 millimeters.
- the thickenings extend by less than 5 millimeters parallel to the associated outer and / or inner circumferential surfaces and are thus kept relatively narrow.
- the thickenings are too narrow, there is a risk that they will be pushed away during the insertion of the end portion of the hollow profile section in the end portion of the load introduction element. If the thickening is too wide, this can have a negative effect on the adhesive bond between the end section of the load introduction element and the end section of the hollow profile section, because in the region of the thickenings the optimum layer thickness of the adhesive is not achieved.
- at least one space between two teeth is filled exclusively with an adhesive within the connection portion.
- this adhesive at the same time forms part of the outer circumferential surface of the connecting portion.
- the adhesive between the at least two teeth is located in a passageway of constant width.
- Fig. 1 is a perspective, partially exploded view of a suspension arm according to a first embodiment of the invention
- FIG. 2 shows a perspective illustration of a load introduction element of the chassis link according to FIG. 1;
- FIG. 3 shows a side view of the load introduction element according to FIG. 2;
- FIG. 4 shows the load introduction element according to FIGS. 2 and 3 in a side view rotated by 90 degrees with respect to FIG. 3;
- FIG. 5 shows a side view of a load introduction element according to a second embodiment of the invention;
- FIG. 6 is a sectional view of the chassis link according to FIG. 1 in accordance with the section A - A indicated there; FIG.
- FIG. 7 shows a partial sectional view of the chassis link according to FIG. 1 in accordance with the section B - B indicated in FIG. 6;
- FIG. 8 is a sectional view of the chassis link according to FIG. 1 in accordance with the section C - C indicated there; FIG.
- FIG. 9 is a perspective view of a load introduction element according to a third embodiment of the invention.
- 10 a to 10 c each show a top view of load introduction elements according to further embodiments of the invention.
- FIG. 11 is a perspective view of a suspension arm according to a second embodiment of the invention.
- Fig. 12 is a perspective view of a suspension arm according to a third embodiment of the invention.
- Fig. 1 shows a designed as a two-point link suspension arm 1, which is also referred to as axle strut.
- the suspension arm 1 has a pultruded hollow profile section 2 made of a fiber-reinforced plastic and two load introduction elements 3 made of aluminum, wherein the hollow profile section 2 and the load introduction elements 3 are each connected to each other in common connection sections 4 via permanent, glued connectors 5.
- the two plug connections 5 in each case one end section 6 of the load introduction element 3 and one end section 7 of the hollow profile section 2 mutually engage one another and essentially in a form-fitting manner.
- the end portion 6 of the load introduction element 3 has a spline 8 with 12 in the longitudinal direction 9 of the common connecting portion 4 extending teeth 10, whereby the rigidity of the end portion 6 of the load introduction element 3 in the longitudinal direction 9 of the common connecting portion 4 is reduced.
- the end portion 7 of the hollow profile section 2 and the end portion 6 of the load introduction element 3 are connected to each other by an adhesive 1 1 over its entire surface and free of voids.
- the solidified adhesive 1 1 is shown separately in the exploded end of the suspension arm 1 for illustration.
- the adhesive 1 1 has only a layer thickness of about 0.5 millimeters on average, which among other things, the above-described, substantially positive engagement of the end portion 6 of the load introduction element 3 and the end portion 7 of the hollow profile section 2 is justified. Since the hollow profile section 2 is presently straight, the longitudinal direction 9 of the connection section 4 corresponds to the longitudinal direction 12 of the hollow profile section 2.
- the load introduction element 3 shown separately in FIG. 2 is designed as an extruded profile section which extends like a column in a profile longitudinal direction 13.
- the load introduction element 3 is produced by sawing off a rod material extruded in profile longitudinal direction 13. Also in the profile longitudinal direction 13 extending outer peripheral surfaces of the load introduction element 3 are unprocessed and correspond to the surface state of the extruded rod material.
- a visible of a total of two surfaces produced by the sawing is provided in accordance with DIN EN ISO 1302 with a marking for a machined surface (symbol with a closed triangle).
- An unprocessed surface of the load introduction element 3, which undergoes no material-removing machining and at the same time represents a surface of the extruded rod-shaped starting material is analogously marked with a symbol having an open triangle with a inscribed circle.
- the load introduction element 3 has a passage opening 14 for receiving a molecular joint, not shown.
- the end portion 6 of the load introduction element 3 is penetrated by lattice-like manner extending perpendicularly to the longitudinal direction 9 of the connecting portion 4 and partially simultaneously cutting through grooves 15. Through the between the passageway th 15 remaining aluminum, the teeth 10 are formed.
- the spline 8 has four canines 10, which are continuously tapered to further reduce the stiffness over the longitudinal extension of the hollow profile section 2 towards.
- the four canines 10 each have four surfaces extending in the longitudinal direction 9 of the connecting portion 4, which in each case form the circumference of the canines 10 in this direction. Of these four surfaces, one is sawn, one is milled, and two surfaces are unprocessed surfaces of the extruded rod-shaped stock.
- Two through grooves 15 extending in a first direction 16 are made by milling with a side milling cutter and have a constant width.
- Three passage grooves 15 extending in a second direction 17, which is oriented perpendicular to the first direction 16 and coincides with the profile longitudinal direction 13, are extruded through-grooves 15 of the bar-shaped starting material and have a varying width.
- the teeth 10 of the spline 8 are formed on tooth roots 18, at which the teeth 10 merge into solid material of the load introduction element 3, tapered. Free, the hollow profile section 2 facing ends 19 of the teeth 10 have perpendicular to the longitudinal direction 9 of the connecting portion 4 has a minimum cross-sectional area.
- the passageways 15 of varying width extending in the second direction 17 have an increased width in the region of the toothed feet 18 and in the region of the free ends 19 of the teeth 10 in the first direction 16. It can be seen that the canines 10 have at their tooth roots 18 a maximum cross-sectional area which decreases continuously towards their free ends 19.
- variable width passageways 15 in the first direction 16 have a minimum width on.
- the teeth 10 have in the longitudinal direction 9 of the connecting portion 4 has a length which is about twice as large in some teeth 10 as a maximum width of these teeth 10. In most teeth 10, however, this length is substantially greater than the maximum width.
- the peripheral contour of the function integrating element 21 is extruded and not further processed, which is indicated by the previously described symbol with the open triangle and inscribed circle.
- the tooth roots 18 extend about 10 millimeters in the longitudinal direction 9 of the connecting portion 4; the central portion 20 about 25 millimeters and the free end 19 of the teeth 10 about 10 millimeters in the same direction.
- the total length of the teeth 10 of about 45 millimeters corresponds, in the same direction as previously measured, substantially the length of the end portion 6 of the load introduction element 3.
- a base 24 of the spline 8 corresponds to a maximum width of about 8.5 millimeters; in the middle section 20 of about 7 millimeters and at the free end 19 of the teeth 10 of about 7.75 millimeters. Also in this view it can be clearly seen that the teeth 10 of the spline 8, to further reduce the rigidity of the end portion 6 of the load introduction element 3 in the longitudinal direction 9 of the common connection portion 4, are tapered in the first direction 16 at their tooth roots 18.
- all teeth 10 of the spline 8 each have two unprocessed, extruded longitudinal sides which extend substantially in the longitudinal direction 9 of the connecting portion 4.
- the free, the hollow profile section 2 facing ends 19 of the teeth 10 have to further reduce the rigidity of the end portion 6 of the load introduction element 3 in the longitudinal direction 9 of the common connecting portion 4 partially frontal, concave and open to the hollow profile section 2 recesses 23.
- the second direction 17 is identical in this embodiment with the profile longitudinal direction 13.
- Das function integrating element 21 is formed in the profile longitudinal direction 13 in the dash-dotted lines indicated initial state over the entire length of the load introduction element 3 in the second direction 17.
- two symmetrically arranged regions of the initial state are disengaged by a machining process.
- the corresponding surface details are, analogous to the previously described, drawn.
- FIG. 5 shows a load introduction element 3 with a spline 8 having teeth 10 extending essentially in the longitudinal direction 9 of the connection section 4.
- the spline 8 has milled through grooves 15 of constant width in the second direction 17, which extend in the same direction from FIG Degrees differing angle a to the profile longitudinal direction 13 of the load introduction element 13 extend as the longitudinal direction 9 of the connecting portion 4.
- the load introduction element 3 has sawn outer surfaces resulting from an oblique sawing of the load introduction element 3 of a profile bar, in the same deviating from 90 degrees angle a to the profile longitudinal direction 13 as the milled through grooves 15 extend and are marked with the previously described closed triangle symbol.
- the load introduction element 3 also has, not shown, unprocessed through grooves 15 of varying width in the first direction 16, which have extruded surfaces and extending in the profile longitudinal direction 13.
- Fig. 6 shows the load introduction element 3, wherein the teeth 10 of the spline 8 have over their longitudinal extent in the longitudinal direction 9 of the connecting portion 4 has a rectangular solid cross-section.
- the four canines randomly have a square solid cross section as a special shape of a rectangular solid cross section in the selected cutting plane.
- the two end portions of the two in the first direction 16 extending through grooves 15 of constant width are filled with the adhesive 1 1, which forms an outer peripheral surface of the connecting portion 4 in these four areas.
- the layer thickness of the adhesive 1 1 is on average about 0.5 millimeters.
- FIG. 6 also shows that the teeth 10 of the spline 8 are partially bonded to outer peripheral surfaces and partly with inner peripheral surfaces of the end portion 7 of the hollow profile section 2.
- Fig. 7 it can be seen that the hollow profile section 2 is not inserted in the longitudinal direction 9 of the common connecting portion 4 until it stops in the spline 8, but between a the load application element 3 facing end side of the hollow profile section 2 and the base 24 of the spline 8 with a Adhesive 11 filled gap 25 remains.
- the hollow profile section 2 has, as viewed in the present cross section, projecting from its outer peripheral surfaces and its inner peripheral surfaces, narrow thickenings 28.
- the thickenings 28 extend not only over the end portion 7 of the pultruded hollow profile section 2, but strip-shaped over its entire length.
- the thickenings 28 project by about 0.3 millimeters from the aforementioned outer or inner peripheral surfaces and have a width of about 3 millimeters.
- the thickenings 28 represent guide surfaces.
- the layer thickness of the adhesive 11 is calculated to be 0.2 millimeter, which shows that the end section 6 of the load introduction element 3 and the end portion 7 of the hollow profile section 2 alternately with only a small clearance, so essentially form- conclusive, interlocking.
- the inner peripheral surfaces of the hollow profile section 2 are identical to peripheral surfaces of the two chambers 26.
- FIG. 9 shows a load introduction element 3 with two plug-toothed end sections 6 for accommodating one end section 7 of a hollow profile section 2.
- the two end sections 6 of the load introduction element 3 form an angle of 90 degrees relative to each other.
- a load introduction element 3 is shown with two splined end portions 6, which have an angle of 180 degrees to each other and are also open in opposite directions.
- a load introduction element 3 can, for example, function as a connector which connects two hollow profile sections 2 to one another.
- FIG. 10b shows a load introduction element 3 with three plug-toothed end sections 6, each staggered by 120 degrees, which lie in one plane.
- a middle region of the load introduction element 3 has triangular-shaped, columnar passages in order to avoid production-related unfavorable material accumulation in this area.
- a load introduction element 3 shown in FIG. 10 c has four plug-toothed end sections 6 which are offset by 90 degrees and lie in one plane.
- the square recesses in the middle region of the load introduction element 3 are likewise of columnar design and serve the same purpose as described above.
- Load introduction elements 3 with more than four end sections 6 can be designed analogously to the described embodiments.
- the three aforementioned load introduction elements 3 according to FIGS. 10 a to 10 c are extruded load introduction elements 6 having a profile longitudinal direction 13 which extends perpendicular to the plane of the drawing.
- FIG. 11 shows a chassis link 1, which is designed as a three-point link, this chassis link 1 having two first load introduction elements 3 with first profile longitudinal directions 13, which extend in a common plane.
- a second load introduction element 3 ' has a second profile longitudinal direction 13' which extends perpendicular to the common plane in which the two first profile longitudinal directions 13 extend.
- the profile longitudinal directions 13, 13' coincide with the previously described second directions 17, in each of which through grooves 15 of varying width extend.
- passage grooves 15 each have, analogous to the previously described, in the area of the toothed feet 18 and in the region of the free ends 19 of the teeth 10 in the first direction 16 an increased width.
- the second load introduction element 3 has two plug-toothed end sections 6 for receiving two end sections 7 of two hollow profile sections 2.
- FIG. 12 shows a chassis link 1, which is designed as a two-point link, and has two geometrically identical load introduction elements 3, which are interconnected by a hollow profile section 2.
- the hollow profile section 2 is curved and has a constant radius of curvature over its entire longitudinal extent.
- the curved trained hollow profile section 2 can be easily inserted into splines 8 of the load introduction elements 3, have through grooves 15 of the splines 8 in the longitudinal directions 9 of connecting portions 4 also partially deviating from a straight line extent extension.
- the through grooves 15 of the splines 8 have the same radius of curvature as the hollow profile section 2.
- the curvatures of the hollow profile section 2 and the curved through grooves 15 are all in a plane which is spanned by the arcuately shaped hollow section section 2 and a chord connecting the ends thereof ,
- the curved formed through grooves 15 of the two load introduction elements 3 extend in profile longitudinal directions 13 according to the definition above and also have unprocessed, extruded inner surfaces.
- the curved passage grooves 15 have a varying width over the extent thereof in the longitudinal directions 9 of the connecting sections 4, as described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Body Structure For Vehicles (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Dental Preparations (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980035405.XA CN112203878B (zh) | 2018-05-25 | 2019-04-29 | 用于机动车辆的底盘悬臂 |
JP2020565793A JP7252262B2 (ja) | 2018-05-25 | 2019-04-29 | 原動機付き車両用のシャシコントロールアーム |
EP19722813.3A EP3802168A1 (de) | 2018-05-25 | 2019-04-29 | Fahrwerklenker für ein kraftfahrzeug |
US17/056,553 US11173763B2 (en) | 2018-05-25 | 2019-04-29 | Chassis link for a motor vehicle |
KR1020207034676A KR102581689B1 (ko) | 2018-05-25 | 2019-04-29 | 자동차용 섀시 링크 |
BR112020019885-4A BR112020019885A2 (pt) | 2018-05-25 | 2019-04-29 | Braço de chassi para um veículo automóvel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102018208282.0 | 2018-05-25 | ||
DE102018208282.0A DE102018208282A1 (de) | 2018-05-25 | 2018-05-25 | Fahrwerklenker für ein Kraftfahrzeug |
Publications (1)
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WO2019223957A1 true WO2019223957A1 (de) | 2019-11-28 |
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PCT/EP2019/060844 WO2019223957A1 (de) | 2018-05-25 | 2019-04-29 | Fahrwerklenker für ein kraftfahrzeug |
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EP (1) | EP3802168A1 (de) |
JP (1) | JP7252262B2 (de) |
KR (1) | KR102581689B1 (de) |
CN (1) | CN112203878B (de) |
BR (1) | BR112020019885A2 (de) |
DE (1) | DE102018208282A1 (de) |
WO (1) | WO2019223957A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20210179299A1 (en) * | 2019-12-16 | 2021-06-17 | Sierra Nevada Corporation | High temperature layered tile insulation system for aerospace vehicles |
KR20220073324A (ko) * | 2020-11-26 | 2022-06-03 | 주식회사 포스코 | 로워암 및 이의 제조방법 |
US11384788B2 (en) * | 2019-11-05 | 2022-07-12 | The Boeing Company | Thermoplastic tie-rod |
WO2022170653A1 (zh) * | 2021-02-09 | 2022-08-18 | 博戈橡胶塑料(株洲)有限公司 | 一种轻量化复合材料推力杆制作方法及结构 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018221892A1 (de) * | 2018-12-17 | 2020-06-18 | Zf Friedrichshafen Ag | Fahrwerklenker für ein Kraftfahrzeug |
US20220055434A1 (en) * | 2019-04-30 | 2022-02-24 | Polaris Industries Inc. | Vehicle |
DE102019206436A1 (de) * | 2019-05-06 | 2020-11-12 | Schäfer MWN GmbH | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
DE102019206435A1 (de) * | 2019-05-06 | 2020-11-12 | Schäfer MWN GmbH | Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs |
DE102019206792A1 (de) * | 2019-05-10 | 2020-11-12 | Zf Friedrichshafen Ag | Gebauter Dreipunktlenker |
US20220194483A1 (en) * | 2020-12-18 | 2022-06-23 | Divergent Technologies, Inc. | Apparatuses and methods of attaching an additively manufactured structure to a profile |
DE102023200893A1 (de) | 2023-02-03 | 2024-08-08 | Faserinstitut Bremen E.V. | Mehrpunktlenker für ein Fahrwerk eines Nutzfahrzeugs |
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2018
- 2018-05-25 DE DE102018208282.0A patent/DE102018208282A1/de active Pending
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2019
- 2019-04-29 EP EP19722813.3A patent/EP3802168A1/de not_active Withdrawn
- 2019-04-29 CN CN201980035405.XA patent/CN112203878B/zh active Active
- 2019-04-29 JP JP2020565793A patent/JP7252262B2/ja active Active
- 2019-04-29 WO PCT/EP2019/060844 patent/WO2019223957A1/de active Search and Examination
- 2019-04-29 US US17/056,553 patent/US11173763B2/en active Active
- 2019-04-29 BR BR112020019885-4A patent/BR112020019885A2/pt active IP Right Grant
- 2019-04-29 KR KR1020207034676A patent/KR102581689B1/ko active IP Right Grant
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DE102011053480A1 (de) * | 2011-06-22 | 2012-12-27 | Mt Aerospace Ag | Bauteil zur Aufnahme und/oder Übertragung von mechanischen Kräften und/oder Momenten, ein Verfahren zu dessen Herstellung und dessen Verwendung |
WO2013066565A1 (en) * | 2011-11-03 | 2013-05-10 | The Boeing Company | Tubular composite strut having internal stiffening and method for making the same |
EP2722533A1 (de) * | 2012-10-18 | 2014-04-23 | Epsilon Composite | Verklebeverfahren von zwei unter Zugkraft stehenden Teilen und so erhaltene verklebte Teile |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11384788B2 (en) * | 2019-11-05 | 2022-07-12 | The Boeing Company | Thermoplastic tie-rod |
US20210179299A1 (en) * | 2019-12-16 | 2021-06-17 | Sierra Nevada Corporation | High temperature layered tile insulation system for aerospace vehicles |
KR20220073324A (ko) * | 2020-11-26 | 2022-06-03 | 주식회사 포스코 | 로워암 및 이의 제조방법 |
KR102484990B1 (ko) * | 2020-11-26 | 2023-01-04 | 주식회사 포스코 | 로워암 및 이의 제조방법 |
WO2022170653A1 (zh) * | 2021-02-09 | 2022-08-18 | 博戈橡胶塑料(株洲)有限公司 | 一种轻量化复合材料推力杆制作方法及结构 |
Also Published As
Publication number | Publication date |
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CN112203878B (zh) | 2024-05-14 |
EP3802168A1 (de) | 2021-04-14 |
JP2021525193A (ja) | 2021-09-24 |
CN112203878A (zh) | 2021-01-08 |
US20210206219A1 (en) | 2021-07-08 |
DE102018208282A1 (de) | 2019-11-28 |
KR102581689B1 (ko) | 2023-09-25 |
JP7252262B2 (ja) | 2023-04-04 |
KR20210013700A (ko) | 2021-02-05 |
US11173763B2 (en) | 2021-11-16 |
BR112020019885A2 (pt) | 2021-01-05 |
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