EP4217220A1 - Strukturbauteil - Google Patents
StrukturbauteilInfo
- Publication number
- EP4217220A1 EP4217220A1 EP21766452.3A EP21766452A EP4217220A1 EP 4217220 A1 EP4217220 A1 EP 4217220A1 EP 21766452 A EP21766452 A EP 21766452A EP 4217220 A1 EP4217220 A1 EP 4217220A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- structural component
- actuator
- material thickness
- component according
- inner region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D1/00—Pinless hinges; Substitutes for hinges
- E05D1/02—Pinless hinges; Substitutes for hinges made of one piece
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
-
- 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
- B29L2031/3005—Body finishings
-
- 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
- B29L2031/3044—Bumpers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
- B60R2019/486—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with air passages, e.g. for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/405—Electric motors actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/406—Hydraulic actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/40—Actuators for moving a controlled member
- B60Y2400/408—Pneumatic actuators
Definitions
- the invention relates to a structural component with the features from the preamble of patent claim 1 .
- Flat components can be bent easily if they are flat.
- the bending direction can be freely selected here. In the case of simple curved surfaces, the bending direction is determined by the existing curvature. Bending is also possible with double-curved surfaces, but this involves increased effort.
- Deformations lead to stresses in a component. These can be bending stresses or additional membrane stresses.
- the energy input into a system with a comparable deformation amplitude is lower than with a combination of bending and membrane loading.
- a targeted reduction in wall thickness along a line is common for plastic parts and is called a film hinge.
- bending stress occurs only in the area where the wall thickness is reduced. Due to high material elongation, the residual wall thickness of the film hinge must be very small. Without a local wall thickness reduction, bending stress occurs over a large area with a correspondingly low material strain.
- the more force is required to deform a component the more energy the component has to absorb.
- the energy absorbed should be of a purely elastic nature. Should a deformation generated by means of an actuator it is desirable to minimize the force required for the deformation. In this way, costs and weight can be saved. Likewise, the longevity of the component to be deformed is improved.
- the industrial standard includes structural components that:
- a closure system with a three-dimensional structure is proposed, which has an opening to be closed and a cover to be placed on the three-dimensional structure in order to close the opening, the cover having the following:
- annular rim section which has a larger outer circumference in the first bistable state than in the second bistable state and is therefore designed to effect a clamping attachment of the cover to a wall region of the opening by the rim section in the first state being on the inside or in presses against the outside of the wall area in the second state,
- the three-dimensional structure is configured to transmit a force exerted from the outside on the closure system at predefined points in such a way that it causes the cover to snap over from one of the two bistable states to the other.
- Another defined deformation of a component is known from the German patent application DE 102011 001 690 A1.
- This published application describes an interior lining for a vehicle with increased crash safety, with a deformable interior lining element which is arranged on a receiving element.
- a cavity is formed at least below the interior paneling element, with the interior paneling element being designed in such a way that it is at least partially deformed into the cavity when an impact body impacts.
- a material recess is provided, through which the deformation behavior of the interior trim element is influenced in such a way that when a force acts on the interior trim element from one direction of action, at least one area of the interior trim element is lateral to the direction of action of the force dodges.
- a method for forming a plate-shaped material into a three-dimensional object is known.
- the sheet-like material is formed on a die by exerting pressure on a side of the material facing away from the die.
- the method according to the invention is characterized in that a reduction in the material thickness is carried out in the plate-shaped material in the regions to be formed before the forming on the side facing away from the die.
- a method for forming a plate-shaped material into a three-dimensional object is also proposed.
- the plate-like material is folded along one or more fold lines, with the plate-like material in the areas to be shaped being subjected to a linear reduction in material thickness prior to shaping, and the material then being bent manually along this linear material thickness reduction.
- the object of the present invention is to show a structural component made of a plastic which can be deformed with a very small force that has to be applied.
- the present invention relates to structural components that have areas with different wall thicknesses and that have defined deformation options due to local wall thickness reductions.
- the areas with reduced wall thickness do not represent straight segments, but rather a free-form geometry that is ideally adapted to the surface geometry.
- the applications are diverse and can affect products far beyond the automotive sector.
- the configuration according to patent claim 2, that the inner region can be pivoted reversibly by an actuator, is particularly beneficial for the present invention, since the actuator only has to apply small forces, which saves weight and costs.
- the structural component according to patent claim 5 is particularly preferably an injection-molded part or a deep-drawn component, with a thermoplastic material preferably being used according to patent claim 6 .
- a thermoplastic material preferably being used according to patent claim 6 .
- This can be, for example, acrylonitrile butadiene styrene (ABS), polyamide (PA), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polystyrene (PS), act etc.
- FIG. 1 shows a top view of a motor vehicle according to the invention with a closed inner area.
- FIG. 2 shows a top view of the motor vehicle according to the invention with an open inner area.
- FIG 3 shows a section through a front end of a motor vehicle with a structural component according to the invention.
- 5a shows a structural component according to the prior art.
- 5b shows the structural component according to the invention.
- the motor vehicle 2 has a structural component 1, which in the present exemplary embodiment represents a bumper covering of the motor vehicle 2.
- the structural component 1 has a parting line 3 which divides the structural component into an inner area 4 and an outer area 5 .
- the inner region is closed in FIG. 1, which means that the structural component 1 acts as a single structural component 1 on an observer.
- the structural component 1 is made of a plastic, in particular a thermoplastic material as initially described, in this embodiment for an outer skin of a body of the motor vehicle 2.
- the inner region 4 and the adjacent outer region 5 have a defined Pivotability of the inner area 4 with a reduced effort three-dimensional areas with a reduced material thickness 6 on. Three examples of this are shown in Figures 4a, 4b and 4c.
- FIG. 2 again shows the motor vehicle 2 from FIG. 1 , but in this case the inner area 4 is pivoted, so that an air inlet in the bumper covering is shown as a result.
- FIG. 3 shows a section through a front end of the motor vehicle 2 with the structural component 1 .
- the foldable inner area 4 is shown in sections with a thinner wall thickness, the reduced material thickness 6, than the rest of the structural component 1.
- An arrow pointing from FIG. 3 to FIG. 2 shows a point of application 8 for an actuator 7.
- the actuator 7 is pivotably mounted in the area of an electrically actuable motor 9, for example. If the motor 9 is actuated electrically, the actuator 7 pulls the inner area 4 of the structural component 1 inwards, away from the top.
- the pivoted situation as also shown in FIG. 2, is shown in broken lines in FIG. It is clearly recognizable how the actuator 7 is adjusted from an inclined position to a vertical position and in this way folds away or opens the inner area 4 of the structural component 1 inwards via the actuator point of application 8 .
- the structural component 1 has the parting line 3, which separates the structural component 1 into the inner area 4 and the outer area 5, the inner area 4 having three-dimensional areas with a reduced material thickness 6 for defined pivotability with a reduced effort.
- the areas of reduced material thickness 6 are shown in FIGS. 4a to 4c.
- the reduced material thickness 6 preferably has between 10% and 90%, in particular between 10% and 60%, of the full or maximum material thickness of the structural component 1 . Furthermore, the inner region 4 can be pivoted by the actuator 7 between 0° and 100° with respect to the structural component 1 in a fixed position.
- the structural component 1 is preferably an injection molded part or a deep-drawn component, it being preferably made of a thermoplastic material.
- the actuator 7 is preferably an electromechanical or hydraulic or pneumatic actuator, it being possible for a spindle drive, for example, to be provided for an electromechanical actuator.
- the structural component 1 is particularly preferably at least a section of a bumper covering of the motor vehicle 2, as shown in the present exemplary embodiment.
- the inner region 4 is preferably an air inlet, such as could be required for controlling the temperature of a unit arranged behind the structural component 1 .
- the structural component 1 preferably has a full material thickness of between 1 mm and 6 mm, since the best results in practical tests with regard to the deformation behavior have been achieved in this way.
- FIGS. 4a to 4c An inner area 4 of the structural component 1 is shown in each of FIGS. 4a to 4c, the lower edge from FIGS. 1 to 3 being shown at the top (rotated by 180°) in FIGS. 4a to 4c.
- the areas of reduced material thickness 6 are shown in FIGS. 4a to 4c.
- the reduced material thickness 6 corresponds to 95% of the maximum wall thickness.
- the actuator 7 has to apply a force of 28 N for a material reduction of 5% in order to pivot the inner area 4 of the structural component 1 .
- FIG. 4b again shows the same inner area 4 as FIG. 4a, but the reduced material thickness 6 is 90% of the maximum wall thickness. This results in a resultant force of 24 N to be applied by the actuator 7, i. H. less than in Fig. 4a.
- FIG. 4c again shows the same inner region 4 as in FIGS. 4a and 4b, but the reduced material thickness 6 is now 85% of the maximum wall thickness. This results in a resultant force of 19 N to be applied by the actuator 7, ie significantly less than in FIG. 4a.
- FIG. 5a shows a top view of the structural component 1 .
- the inner area of the structural component 1 is again numbered 4 and the outer area is numbered 5.
- the parting line is numbered 3 again.
- the actuator point of action 8 again shows the point of action of the actuator 7.
- the resulting force in the structural component 1 is shown distributed over circles.
- the entire structural component 1 has the maximum material thickness, which results in a force of 364 N to be applied by the actuator 7 in order to pull up or pivot the inner region 4 .
- FIG. 5b again shows the structural component 1 from FIG. 5a, but with the reduced material thickness 6 according to the invention. It can be clearly seen that the actuator 7 is now able to pull the inner area 4 up or down with a significantly reduced force of 19 N. to pivot.
- the present invention thus relates to many structural components 1 which have areas with different wall thicknesses and which have defined deformation options due to local wall thickness changes.
- the areas with reduced wall thickness do not represent linear elements, but rather a free-form geometry that is adapted to the surface geometry.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Laminated Bodies (AREA)
- Superstructure Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020124654.4A DE102020124654A1 (de) | 2020-09-22 | 2020-09-22 | Strukturbauteil |
| PCT/EP2021/073162 WO2022063497A1 (de) | 2020-09-22 | 2021-08-20 | Strukturbauteil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4217220A1 true EP4217220A1 (de) | 2023-08-02 |
Family
ID=77666506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21766452.3A Ceased EP4217220A1 (de) | 2020-09-22 | 2021-08-20 | Strukturbauteil |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20230294626A1 (de) |
| EP (1) | EP4217220A1 (de) |
| CN (1) | CN116157288A (de) |
| DE (1) | DE102020124654A1 (de) |
| WO (1) | WO2022063497A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024103814A1 (de) * | 2024-02-12 | 2025-08-14 | Audi Aktiengesellschaft | Verkleidungsteil und Kraftfahrzeug |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014106067A1 (de) * | 2014-04-30 | 2015-11-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Belüftungsanordnung für Aggregate in einem Kraftfahrzeug |
| DE102004059747B4 (de) * | 2004-12-11 | 2016-02-11 | Volkswagen Ag | Sicherheitseinrichtung, insbesondere Fußgängerschutzeinrichtung, für ein Kraftfahrzeug, insbesondere für ein Geländefahrzeug |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1442982A (en) * | 1972-03-30 | 1976-07-21 | Hinderks M V | Closure member and protector therefor |
| GB1362242A (en) * | 1972-08-14 | 1974-07-30 | Smith & Nephew Res | Plastics hinge |
| DE3246767C2 (de) * | 1982-12-17 | 1984-09-27 | Daimler-Benz Ag, 7000 Stuttgart | Aerodynamische Verkleidung der seitlichen Längsträger für Personen- und Kombinationskraftwagen |
| DE3613301A1 (de) * | 1986-04-19 | 1987-10-22 | Daimler Benz Ag | Seitenverkleidung fuer personen- oder kombinationskraftwagen |
| WO2009070891A1 (en) * | 2007-12-07 | 2009-06-11 | Magna International Inc. | Rear fascia integrated step load support |
| DE102008013336B4 (de) * | 2008-03-06 | 2021-04-08 | Audi Ag | Kraftfahrzeug mit aktiver Belüftungsklappe |
| DE102009022486A1 (de) * | 2009-05-26 | 2010-12-02 | GM Global Technology Operations, Inc., Detroit | Strukturbauteil einer Kraftfahrzeugkarosserie |
| DE102010044074A1 (de) | 2010-11-17 | 2012-05-24 | Steelworks Gmbh & Co. Kg | Verfahren zum Umformen eines plattenförmigen Materials in ein dreidimensionales Objekt |
| DE102010056050A1 (de) * | 2010-12-23 | 2012-06-28 | Volkswagen Ag | Vorderwagen eines Fahrzeugs mit zumindest einem Luftleitelement sowie Lutleitelement dazu |
| JP5675852B2 (ja) * | 2011-01-19 | 2015-02-25 | 本田技研工業株式会社 | 自動車の車体前部構造 |
| DE102011001690B4 (de) | 2011-03-31 | 2023-10-12 | Volkswagen Aktiengesellschaft | Innenverkleidung für ein Fahrzeug mit erhöhter Crashsicherheit |
| FR2978087B1 (fr) * | 2011-07-21 | 2013-08-23 | Valeo Systemes Thermiques | Dispositif d'obturation d'orifice de face avant de vehicule automobile. |
| FR3041290B1 (fr) | 2015-09-17 | 2017-12-01 | Faurecia Bloc Avant | Ensemble avant ou arriere de vehicule automobile presentant une ouverture et comprenant un volet flexible pour obturer ladite ouverture |
| DE102017205082B4 (de) * | 2017-03-27 | 2024-04-18 | Ford Global Technologies, Llc | Fußgängerschutzsystem für eine Kraftfahrzeugfront |
| DE202018103730U1 (de) | 2018-06-29 | 2019-10-09 | Roland Kittmann | Dose mit Schnappverschluss |
| WO2020150302A1 (en) | 2019-01-17 | 2020-07-23 | Flexsys Inc. | Disappearing automotive vent |
-
2020
- 2020-09-22 DE DE102020124654.4A patent/DE102020124654A1/de active Pending
-
2021
- 2021-08-20 CN CN202180060671.5A patent/CN116157288A/zh active Pending
- 2021-08-20 US US18/021,617 patent/US20230294626A1/en active Pending
- 2021-08-20 EP EP21766452.3A patent/EP4217220A1/de not_active Ceased
- 2021-08-20 WO PCT/EP2021/073162 patent/WO2022063497A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004059747B4 (de) * | 2004-12-11 | 2016-02-11 | Volkswagen Ag | Sicherheitseinrichtung, insbesondere Fußgängerschutzeinrichtung, für ein Kraftfahrzeug, insbesondere für ein Geländefahrzeug |
| DE102014106067A1 (de) * | 2014-04-30 | 2015-11-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Belüftungsanordnung für Aggregate in einem Kraftfahrzeug |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2022063497A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102020124654A1 (de) | 2022-03-24 |
| CN116157288A (zh) | 2023-05-23 |
| WO2022063497A1 (de) | 2022-03-31 |
| US20230294626A1 (en) | 2023-09-21 |
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