DE102008033621A1 - Plastic component for motor vehicles, comprises a reinforcing insert embedded in the component, where the reinforcing insert is formed by separate, pre-fabricated and preformed fabric inserts and/or mats made of aligned endless fibers - Google Patents

Abstract

The plastic component (1) comprises a reinforcing insert (2) embedded in the plastic component, where the reinforcing insert is formed by separate, pre-fabricated and preformed fabric inserts and/or mats made of aligned endless fibers. The fabric inserts and/or mats forming the rigid reinforcing insert are embedded in a plastic matrix. The reinforcing insert has bores (4) and/or recesses for obtaining an improved positive lock with the plastic (3) incorporating the reinforcing insert during embedding the reinforcing insert in the plastic component. The plastic component (1) comprises a reinforcing insert (2) embedded in the plastic component, where the reinforcing insert is formed by separate, pre-fabricated and preformed fabric inserts and/or mats made of aligned endless fibers. The fabric inserts and/or mats forming the rigid reinforcing insert are embedded in a plastic matrix. The reinforcing insert has bores (4) and/or recesses for obtaining an improved positive lock with the plastic (3) incorporating the reinforcing insert during embedding the reinforcing insert in the plastic component. The plastic component is formed by a foot pedal such as clutch-, brake- or accelerator pedal, a pedal bearing block, a front end or other component of the motor vehicle requiring the reinforcing insert. An independent claim is included for a method for producing a plastic component for motor vehicles.

Description

The The invention relates to a plastic component for vehicles, in particular motor vehicles, as well as a method for the production the same according to the preamble of the claim 1 or 6.

Plastic components on vehicles, in particular motor vehicles, in which on top of that one or more reinforcing inserts are embedded, have been known for some time. For example, from the EP 1 097 068 B1 an actuating pedal for the brake system of a road vehicle is known, the pedal body has at least one inner metal core and a plastic surrounding the metal core. As a metal core here a steel sheet is proposed. A similar solution will be used with the EP 1 331 150 B1 proposed, wherein also a metallic base body is provided, which in turn has reinforcing ribs on both outer surfaces, which consist of molded plastic and are firmly connected to the base body. The solid connection between the metal base body and the reinforcing ribs takes place on the one hand via one or more openings in the base body, through which the reinforcing ribs are connected by one or more compounds of the molded plastic for forming the reinforcing ribs. On the other hand recesses in the outer edge surface of the body are proposed, which form a positive connection with the molded plastic. Such a trained pedal body has a relatively high weight. In contrast, are from the DE 34 27 097 A1 and from the DE 42 26 352 A1 a clutch pedal or a pedal device with a made of fiber or glass fiber reinforced plastic pedal with reinforcing ribs known. With regard to the arrangement of the fibers or glass fibers in the plastic cited documents are not to be found. Notwithstanding this, it is known in Applicant's art to dispose non-directional cut fibers within said plastic, thereby facilitating processability. Due to the use of undirected cut fibers, however, there is still no sufficiently high strength for especially highly stressed plastic components, such as foot pedals. This is where the invention described below begins.

task The invention is a further improved plastic component for vehicles, in particular motor vehicles with an increased Stiffness and durability with low weight to accomplish. Furthermore, it is an object of the invention a suitable Specify a method for producing such a plastic component.

Of the Invention is based on the finding that reinforcing inserts from pre-fabricated and preformed fabric inserts and / or Mats made of directional continuous fibers for a low weight of the plastic component to be produced to an increased Lead stiffness and durability of the same and on the other hand a cost-effective production of such reinforced Allow plastic components.

The Asked task is therefore by a plastic component for Vehicles, in particular motor vehicles, with at least one in the Plastic component embedded reinforcing insert solved, which in turn are separated by one or more separate, pre-fabricated ones and preformed fabric inserts and / or mats formed from oriented continuous fibers is.

The Subclaims describe preferred developments or Embodiments of the invention.

After that the oriented endless fibers can be made by synthetic fibers, such as glass, carbon, aramid, ceramic fibers and the like. More, and / or be formed by natural fibers. Furthermore, can / can according to an advantageous embodiment of the invention the one or more fabric insert (s) and / or mat (s), as far as possible forming a dimensionally stable reinforcing insert into a plastic matrix be embedded. Further advantageously, it may be indicated that the at least one reinforcement insert one or more Holes and / or recesses to achieve an improved Positive fit with the at least one reinforcing insert receiving plastic during embedding of the reinforcing insert in said plastic. The plastic component in question can be controlled by a foot pedal, such as clutch, brake or accelerator pedal, through a pedal bracket, through a front end or through anything other, at least one reinforcing insert requiring Component of a vehicle, in particular a motor vehicle formed be.

• a) Bereitstellung zumindest einer separaten, vorab hergestellten und vorgeformten, sowie aus einer oder mehreren Gewebeeinlagen und/oder Matten aus gerichteten Endlosfasern gebildeten Verstärkungseinlage,
• b) Einlegen der zumindest einen Verstärkungseinlage in ein an sich bekanntes Werkzeug zur Herstellung von Kunststoffformteilen, und
• c) Ummanteln der zumindest einen Verstärkungseinlage mit einem geeigneten Kunststoff gemäß der gewünschten Außenkontur des Kunststoffbauteils.

The method for producing a plastic component for vehicles, in particular motor vehicles, with at least one reinforcing insert embedded in the plastic component is characterized by the following method steps to be carried out successively:

• a) provision of at least one separate, preformed and preformed reinforcing insert formed from one or more fabric inserts and / or mats of oriented continuous fibers;
• b) inserting the at least one reinforcing insert into a per se known tool for the production of plastic moldings, and
• c) sheathing the at least one reinforcement insert with a suitable plastic according to the desired outer contour of the plastic component.

in the With regard to the method step a) can advantageously at least a reinforcing insert can be provided, the one or several fabric inserts and / or mats of continuous fibers in Form of synthetic fibers, such as glass, carbon, aramid, ceramic fibers and the like. More, and / or in the form of natural fibers. Further can with regard to the process step a) at least one reinforcing insert be provided, whose one or more fabric insert / s and / or Matte / n, a largely dimensionally stable reinforcing insert forming, embedded in a plastic matrix. After all can with regard to the process step a) at least one reinforcing insert be provided in which after or immediately during the production of the same one or more holes and / or recesses to achieve an improved positive connection with the at least a reinforcing insert receiving plastic during the sheathing of the at least one reinforcing insert with said plastic according to method step c) were molded or incorporated. The invention relates also a vehicle, in particular motor vehicle, with a plastic component of the type described above and a vehicle, in particular motor vehicle, with a plastic component, which according to the method described above is made.

The Invention will now be described schematically with reference to the drawings illustrated embodiment explained in more detail: Show it:

1 very schematically a plastic component in the form of a foot pedal according to the prior art, with a metal reinforcing insert, which is encapsulated according to the desired outer contour of the foot pedal with a plastic,

2 a reinforcing insert of an inventively designed plastic part in the form of a foot pedal in a single representation, and

3 the cut 1-1 after 2 ,

1 thus shows a plastic component 1 in the form of a foot pedal according to the prior art, with a metal reinforcing insert 2 which according to the desired outer contour of the foot pedal with a plastic 3 is encapsulated according to a known injection molding.

In essence, said reinforcing insert 2 from a punched out of a metal plate metal sheet, such as steel, which with holes 4 and / or recesses is provided and inserted into a not shown in detail, but known per se injection mold and subsequently with plastic 3 is encapsulated such that a the desired contour of the foot pedal to be produced at least partially imaging cavity of the injection mold with plastic 3 is filled.

In said holes 4 and / or recesses of the metal reinforcing insert 2 penetrates plastic 3 a, from which ultimately an improved positive connection of the cured plastic 3 with the metal reinforcing insert 2 to be recorded.

As already stated in the introduction, such a foot pedal designed has a relatively high weight, which in particular the use of a metal reinforcing insert 2 owed.

To counter this fact, at least one is now in the plastic component 1 respectively reinforcing insert embedded in the foot pedal 2 ' provided, in turn, by one or more separate, pre-prepared and preformed, ie, a certain desired contour in the finished plastic component 1 as far as possible already comprehensive fabric inserts and / or mats from directional continuous fibers 5 is formed (not shown).

The said fabric inserts / n and / or mat (s) will become a reinforcing insert, so to speak 2 ' in the not shown here, but known per se injection mold inserted and with a suitable plastic 3 , For example, a polyamide, according to the desired outer contour of the plastic component 1 molded.

The fabric insert / n and / or mat / n made of continuous fibers 5 is / are preferably formed by synthetic fibers, such as glass, carbon, aramid, ceramic fibers and the like, more, and / or by natural fibers.

As in the 2 and 3 As has been shown, it has proved to be particularly advantageous in the context of extensive tests if the one or more fabric inserts and / or mats are made of oriented continuous fibers 5 in advance by means of a separate injection mold in a plastic matrix 6 embedded and in the cured state of the plastic matrix 6 , which may for example also be formed by a polyamide, a largely dimensionally stable reinforcing insert 2 ' training, which are easy to handle and in the context of the actual production of the plastic component 1 by molding with plastic 3 easy to process further.

Be for the plastic matrix 6 and in the context of the final production of the plastic component 1 overmoulded plastic 3 Moreover, if identical or substantially identical materials are used, advantageously an effective material bond between the plastic matrix is still possible 6 and the overmoulded plastic 3 to be noted because on the surface of the reinforcing insert 2 ' the plastic of the plastic matrix 6 melts within limits during encapsulation.

To further improve the positive connection between the at least one reinforcing insert 2 ' and the overmoulded plastic 3 are according to this embodiment in the at least one reinforcing insert 2 ' also holes 4 and / or recesses provided in said plastic 3 during the injection molding of the outer contour of the plastic component 1 penetrates.

The above embodiment essentially relies on a tool for producing a plastic molding in the form of an injection molding tool. However, it is also conceivable, and accordingly covered by the invention, instead to bring into use a suitable, known per se and accordingly not described in detail here press tool, by means of which separately produced outer skin or sheathing parts made of plastic, in turn, if necessary already the outer contour of the plastic component 1 imaging, including the at least one reinforcing insert 2 ' squeeze together and, if necessary, firmly bonded with the supply of heat and / or by means of an adhesive.

The above exemplary embodiment furthermore essentially relies on a plastic component 1 in the form of a foot pedal, such as a clutch, brake or accelerator pedal off.

However, the invention is not limited to said foot pedals, but covers any other, at least one reinforcing insert 2 ' requiring components on vehicles, especially motor vehicles. For example, also pedal bearing blocks and / or the front end of plastic with at least one reinforcing insert 2 ' be equipped of the type according to the invention.

1

Plastic component

2

reinforcing insert (State of the art)

2 '

reinforcing insert (Invention)

3

plastic

4

drilling

5

continuous fibers

6

Plastic matrix

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1097068 B1 [0002]
• - EP 1331150 B1 [0002]
• - DE 3427097 A1 [0002]
• - DE 4226352 A1 [0002]

Claims (11)

Plastic component ( 1 ) for vehicles, in particular motor vehicles, with at least one in the plastic component ( 1 ) embedded reinforcing insert ( 2 ' ), characterized in that the at least one reinforcing insert ( 2 ' ) by one or more separate, preformed and preformed fabric inserts and / or mats of oriented continuous fibers ( 5 ) is formed. Plastic component ( 1 ) according to claim 1, characterized in that the directional continuous fibers ( 5 ) by synthetic fibers, such as glass, carbon, aramid, ceramic fibers and the like. More, and / or are formed by natural fibers. Plastic component ( 1 ) according to claim 1 or 2, characterized in that the one or more fabric insert / n and / or mat / n, a largely dimensionally stable reinforcing insert ( 2 ' ) into a plastic matrix ( 6 ) is / are embedded. Plastic component ( 1 ) according to one of claims 1 to 3, characterized in that the at least one reinforcing insert ( 2 ' ) one or more holes ( 4 ) and / or recesses for achieving an improved positive connection with the at least one reinforcing insert ( 2 ' ) receiving plastic ( 3 ) during the embedding of the reinforcing insert ( 2 ' ) in said plastic ( 3 ) having. Plastic component ( 1 ) according to one of claims 1 to 4, characterized in that the plastic component ( 1 ) by a foot pedal, such as clutch, brake or accelerator pedal, by a pedal bearing block, by a front end or by any other, at least one reinforcing insert ( 2 ' ) Requiring component of a vehicle, in particular a motor vehicle is formed. Method for producing a plastic component ( 1 ) for vehicles, in particular motor vehicles, with at least one in the plastic component ( 1 ) embedded reinforcing insert ( 2 ' ), characterized by the following successive steps: a) providing at least one separate, preformed and preformed, and from one or more fabric inserts and / or mats of oriented continuous fibers ( 5 ) formed reinforcing insert ( 2 ' ), b) inserting the at least one reinforcing insert ( 2 ' ) in a per se known tool for the production of plastic components, and c) sheathing the at least one reinforcing insert ( 2 ' ) with a suitable plastic ( 3 ) according to the desired outer contour of the plastic component ( 1 ). A method according to claim 6, characterized in that with regard to the method step a) at least one reinforcing insert ( 2 ' ) which comprises one or more textile inserts and / or mats of continuous fibers ( 5 ) in the form of synthetic fibers, such as glass, carbon, aramid, ceramic fibers and the like. More, and / or in the form of natural fibers. A method according to claim 6 or 7, characterized in that with regard to the method step a) at least one reinforcing insert ( 2 ' ) is provided, one or more fabric insert / s and / or mat / n, a largely dimensionally stable reinforcing insert ( 2 ' ) into a plastic matrix ( 6 ) were embedded. Method according to one of claims 6 to 8, characterized in that with regard to the method step a) at least one reinforcing insert ( 2 ' ) in which, after or immediately during the production thereof, one or more holes ( 4 ) and / or recesses for achieving an improved positive connection with the at least one reinforcing insert ( 2 ' ) receiving plastic ( 3 ) during encasing the at least one reinforcing insert ( 2 ' ) with said plastic ( 3 ) were molded or incorporated according to process step c). Vehicle, in particular motor vehicle, with a plastic component ( 1 ) according to one of claims 1 to 5. Vehicle, in particular motor vehicle, with a plastic component ( 1 ) produced according to any one of claims 6 to 9.