EP3999401A1 - System eines verstärkten karosserieelementes - Google Patents
System eines verstärkten karosserieelementesInfo
- Publication number
- EP3999401A1 EP3999401A1 EP20739733.2A EP20739733A EP3999401A1 EP 3999401 A1 EP3999401 A1 EP 3999401A1 EP 20739733 A EP20739733 A EP 20739733A EP 3999401 A1 EP3999401 A1 EP 3999401A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- expansion material
- body element
- reinforcement layer
- expansion
- layer
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/002—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material a foamable synthetic material or metal being added in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/06—Fixed roofs
Definitions
- the invention relates to a system of a reinforced body element
- Body element in a motor vehicle is a body element in a motor vehicle.
- body elements such as sheet metal, are made with the thinnest possible material thickness. Especially in areas which
- the overall stability of the vehicle is not critically important, such as a roof element, so the thinnest possible metal sheets are used.
- body elements are reinforced by sandwich panels.
- sandwich panels are typically glued to the body elements.
- the sandwich panels for their part consist, for example, of honeycomb structures which are clamped between two reinforcement layers.
- FIG. 1 such a known system of a reinforced body element 2 is shown in a motor vehicle.
- the system 1 comprises a body element 2, an adhesive 3 and a sandwich panel 4.
- the sandwich panel 4 is glued to the body element 2 by the adhesive 3.
- a system of a reinforced body element of a motor vehicle comprising: a body element; a
- Expansion material which has an expansion rate of at least 200%; and a reinforcement layer; wherein the expansion material is arranged between the body element and the reinforcement layer.
- a core idea of the present invention is that the system proposed here does not require prefabricated and customized elements, but that the individual elements of the system (the expansion material and the system).
- Reinforcement element can be produced by the meter and can be adapted to any type of bodywork element. This significantly simplifies and makes a manufacturing process of such systems cheaper.
- a new reinforcement system does not have to be prefabricated for each body shape, but standardized elements can be used for a wide variety of body element shapes.
- the solution proposed here offers the advantage that the expansion material can be formed continuously in contact with the body element, as a result of which both thermal and acoustic properties of the system can be improved.
- expansion rate of at least X% means that a volume of an element increases by the factor of the expansion rate.
- an expansion rate of 200% means that an element gains twice its original volume during expansion.
- a volume is three times as large as the original volume.
- An expansion of 0% means that the volume of the element does not change.
- An expansion rate of 100% means that the volume of an element doubles through expansion.
- the rate of expansion is des
- Expansion material at least 500%, preferably at least 800%, preferably at least 1200%, particularly preferably at least 1500%.
- the expansion material in the unexpanded state has a layer thickness between 0.1 mm and 3 mm, preferably between 0.3 mm and 2 mm, particularly preferably between 0.5 mm and 1.5 mm.
- the expansion material in an expanded state has a layer thickness between 3 and 12 mm, preferably between 4 and 10 mm, particularly preferably between 5 and 8 mm.
- the expansion material is expandable by a temperature of at least 120 ° C. This has the advantage that the expansion material proposed here can thereby be activated in a painting oven such as is used in the manufacturing process of automobiles. No separate activation of the expansion material is therefore necessary.
- the reinforcement layer has a layer thickness between 0.05 mm and 0.2 mm, preferably between 0.08 and 0.12 mm.
- the reinforcement layer contains one or more of the following materials: paper, aluminum, fibers, natural fibers,
- Synthetic fibers carbon fibers, glass fibers, plastic, in particular polyamide or polyethylene or polypropylene.
- an area of the expansion material is greater than 0.1 m 2 , preferably greater than 0.3 m 2 , preferably greater than 0.5 m 2 , particularly preferably greater than 0.8 m 2 .
- an area of the reinforcement layer is greater than 0.1 m 2 , preferably greater than 0.3 m 2 , particularly preferably greater than 0.5 m 2 , particularly preferably greater than 0.8 m 2 .
- the reinforcement layer covers that
- the reinforcement layer covers the
- Expansion material partially, so that a portion of the expansion material is not covered with the reinforcement layer.
- the reinforcement layer completely covers the expansion material, one area of the reinforcement layer being larger as a surface of the expansion material, so that there are partial areas of the reinforcement layer which are not arranged over the expansion material.
- the expansion material and / or the reinforcement layer forms a continuous surface.
- the continuous surface essentially has a rectangular or a trapezoidal or a polygonal shape.
- the corners can be rounded.
- the expansion material and / or the reinforcement layer does not form a continuous surface.
- the surface has one or more recesses.
- these recesses have a round or an oval or a rectangular or a trapezoidal or a polygonal or an irregular shape.
- the surface of the expansion material and / or the reinforcement layer has several cutouts.
- these recesses are arranged in a regular pattern, for example in rows, in columns, or in a checkerboard manner.
- the body element is made of steel or aluminum or carbon or several of the materials mentioned.
- the body element is a roof element of a motor vehicle.
- the expansion material is a
- thermoplastic material In an exemplary embodiment, the expansion material comprises matrix polymers. In an exemplary development, these matrix polymers consist of ethylene vinyl acetate or ethylene alkyl acrylate.
- the expansion material is through a
- Extrusion process produced by calendering, by injection molding or by a 3D printing process.
- the expansion material between 50 ° C. and 160 ° C. preferably between 80 ° C. and 140 ° C., can be processed using this method.
- the expansion material is with the
- Body element through thermal bonding, or through a pressure-sensitive
- Adhesive or connected by a hot melt adhesive or by magnetic attraction.
- the expansion material can be pumped between room temperature and 60 ° C.
- the expansion material is applied to the body element first and then with the
- the expansion material can first be applied to the reinforcement layer, and then the reinforcement layer can be glued together with the expansion material on the body element, so that the expansion material between the body element and the
- Reinforcing layer is arranged.
- Such expansion materials are available, for example, under the trade names SikaBaffle-250NT, SikaBaffle-450, SikaBaffle-455, SikaSeal-761 or SikaSeal-830.
- the object set at the beginning is also achieved by a method for reinforcing a body element in a motor vehicle, the method comprising the steps of: providing a body element; Deploy a Expansion material with a reinforcement layer; Arranging the expansion material with the reinforcement layer on the body panel so that the
- Expansion material is between the body member and the reinforcement layer; wherein the expansion material has an expansion rate of at least 200%.
- the expansion material is expanded after it is placed on the body element.
- the expansion material is expanded before it is arranged on the body element.
- the method is carried out with a system as described above.
- FIG. 1 shows an exemplary illustration of a system of a reinforced
- FIG. 2a shows a schematic illustration of an exemplary system of a reinforced
- 2b shows a schematic illustration of an exemplary system of a reinforced
- Body element wherein an expansion material is shown in the expanded state.
- 2a and 2b each show a system 1 of a reinforced body element 2.
- an expansion material 5 is shown in an unexpanded state, with the expansion material 5 'being shown in an expanded state in FIG. 2b.
- the system 1 further comprises a reinforcing element 6.
- the expansion material 5, 5 ' is between the body element 2 and the
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19187380 | 2019-07-19 | ||
| PCT/EP2020/070368 WO2021013757A1 (de) | 2019-07-19 | 2020-07-17 | System eines verstärkten karosserieelementes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3999401A1 true EP3999401A1 (de) | 2022-05-25 |
Family
ID=67438224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20739733.2A Pending EP3999401A1 (de) | 2019-07-19 | 2020-07-17 | System eines verstärkten karosserieelementes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20220242492A1 (de) |
| EP (1) | EP3999401A1 (de) |
| WO (1) | WO2021013757A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1359004B1 (de) * | 1998-03-30 | 2006-10-11 | Henkel Kommanditgesellschaft auf Aktien | Verstärkungslaminat |
| CA2613762A1 (en) * | 2005-07-01 | 2007-01-11 | Sika Technology Ag | Solid thermally expansible material |
| US20070110951A1 (en) * | 2005-07-20 | 2007-05-17 | Frank Hoefflin | Thermally expansible material substantially free of tackifier |
| DE102006027231A1 (de) * | 2006-06-09 | 2007-12-13 | Henkel Kgaa | Schichtförmiges Verstärkungsbauteil |
| EP2018948A1 (de) * | 2007-07-27 | 2009-01-28 | Sika Technology AG | Verfahren zur Herstellung eines Sandwichelements |
| EP2154051B1 (de) * | 2008-08-05 | 2011-11-30 | Sika Technology AG | Schalldämpfendes Schottteil |
| US8474903B2 (en) * | 2011-04-29 | 2013-07-02 | Honda Motor Co., Ltd. | Serpentine section stabilizer for vehicle pillar |
-
2020
- 2020-07-17 US US17/615,614 patent/US20220242492A1/en active Pending
- 2020-07-17 WO PCT/EP2020/070368 patent/WO2021013757A1/de not_active Ceased
- 2020-07-17 EP EP20739733.2A patent/EP3999401A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021013757A1 (de) | 2021-01-28 |
| US20220242492A1 (en) | 2022-08-04 |
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