Arrangement of a First and a Second Component

Abstract

The invention provides an arrangement of a first component and a second component, wherein at least the first or the second component is a fiber-reinforced plastic composite component. The first and second components are connected to each other so as to generate a clamping connection between the components via an expansion bolt which generates a clamping force creating the clamping connection and equalizes a creep behavior of the fiber-reinforced plastic composite component.

Claims

1. An arrangement of a first component and a second component, wherein at least the first or the second component is a fiber-reinforced plastic component, and the first and second components are connected to each other, in order to generate a clamping connection of the components, via an expansion bolt, where the expansion bolt generates a clamping force which effects the clamping connection and where the expansion bolt compensates a creep behavior of the fiber-reinforced plastic component.

2. The arrangement according to claim 1, wherein the expansion bolt is, for clamping of the first and second components, led through corresponding passages in the components and is, for the generation of the clamping connection of the components, equipped on one side with a nut, and the expansion bolt is led through an additional expansion sleeve which, additionally to the expansion bolt, compensates the creep behavior.

3. The arrangement according to claim 2, wherein the expansion sleeve is arranged between the nut and the component situated on a side of the nut.

4. The arrangement according to claim 2, wherein the expansion sleeve is arranged between a bolt head of the expansion bolt and the component situated on a side of the bolt head.

5. The arrangement according to claim 2, wherein the first and second components are fiber-reinforced plastic components, and the first and second components have a corrosion prevention layer which is arranged on a side averted from the respective other component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

6. The arrangement according to claim 3, wherein the first and second components are fiber-reinforced plastic components, and the first and second components have a corrosion prevention layer which is arranged on a side averted from the respective other component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

7. The arrangement according to claim 4, wherein the first and second components are fiber-reinforced plastic components, and the first and second components have a corrosion prevention layer which is arranged on a side averted from the respective other component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

8. The arrangement according to claim 1, wherein the first component is a fiber-reinforced plastic component and the second component is a metal component, and the first component has a corrosion prevention layer which is arranged on a surface facing toward the second component, and a corrosion prevention layer which is arranged on a side averted from the second component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

9. The arrangement according to claim 2, wherein the first component is a fiber-reinforced plastic component and the second component is a metal component, and the first component has a corrosion prevention layer which is arranged on a surface facing toward the second component, and a corrosion prevention layer which is arranged on a side averted from the second component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

10. The arrangement according to claim 3, wherein the first component is a fiber-reinforced plastic component and the second component is a metal component, and the first component has a corrosion prevention layer which is arranged on a surface facing toward the second component, and a corrosion prevention layer which is arranged on a side averted from the second component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

11. The arrangement according to claim 4, wherein the first component is a fiber-reinforced plastic component and the second component is a metal component, and the first component has a corrosion prevention layer which is arranged on a surface facing toward the second component, and a corrosion prevention layer which is arranged on a side averted from the second component and against which a bolt head of the expansion bolt, a nut fastened to the expansion bolt, or the expansion sleeve bears.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIGS. 1A and 1B are views of a first variant of the arrangement according to the invention, in which a first fiber-reinforced plastic component and a second fiber-reinforced plastic component are fastened to each other via an expansion bolted connection, wherein an additional expansion sleeve is arranged between either a bolt head of the expansion bolt, or a nut fastened to the expansion bolt, and the corresponding component; and

[0039] FIG. 2 is a view of a second preferred variant of the arrangement according to the invention, in which a first component is a fiber-reinforced plastic component and a second component is a metal component, wherein the components are fastened to each other via an expansion bolted connection.

DETAILED DESCRIPTION OF THE DRAWINGS

[0040] FIGS. 1A and 1B show a first variant of an arrangement according to the invention, wherein a first component 2 and a second component 3 are fastened to each other via a clamping connection.

[0041] In this variant, the first component 2 and the second component 3 are preferably in each case a fiber-reinforced plastic component, in which a reinforcement fiber is embedded into a plastic matrix, for example a thermoplastic or thermosetting plastic matrix.

[0042] In each of the components 2, 3, there is formed a passage opening 4 through which an expansion bolt 5 is led. The clamping connection of the components 2, 3 is generated via the expansion bolt 5, wherein, for this purpose, the expansion bolt 5 led through the components 2, 3 is equipped, on a side facing toward the component 3, with a nut 6.

[0043] The nut 6 is fastened to a corresponding thread of the expansion bolt 5, wherein an additional expansion sleeve 7 is also arranged between the component 3 and the nut 6. Accordingly, the clamping connection is generated by use of a force fit between an expansion bolt head 51, which bears against the component 2, of the expansion bolt 5 and the nut 6, which bears against the component 3 via the expansion sleeve 7.

[0044] In particular, the plastic matrix material, which forms the plastic matrix, of the fiber-reinforced plastic components 2, 3 exhibits a creep behavior over the service life of the arrangement. This creep behavior can lead to settling of the bolted connection. To counteract such settling or a loss, caused by the creep behavior, of the clamping force effected by the clamping connection, the bolted connection is, according to the invention, realized via the expansion bolt 5 and via the additional expansion sleeve 7, which is arranged between the nut 6 and the component 3. Both the expansion bolt 5 and the expansion sleeve 7 exhibit elastic behavior such that the creep behavior of the fiber-reinforced plastic component is compensated and a release of the clamping connection is prevented.

[0045] The clamping connection realized via the expansion bolt 5 and expansion sleeve 7 makes it possible for the components 2, 3 to be directly fixedly clamped to each other without the need to use additional sleeves integrated into the components 2, 3.

[0046] FIG. 1B shows an alternative arrangement of the expansion sleeve 7. In the situation shown in FIG. 1B, the expansion sleeve 7 is arranged between a bolt head 51 of the expansion bolt 5 and the component 2 facing toward the bolt head 51.

[0047] If the reinforcement fibers of the fiber-reinforced plastic components 2, 3 are formed from a carbon fiber, it is particularly preferable for a corrosion prevention layer 8 to be provided in each case on that side of the component 2 which faces toward the bolt head 51 and on a side, facing toward the expansion sleeve 7 or the nut 6, of the component 3.

[0048] The corrosion prevention layers 8 ensure galvanic separation between the expansion bolt 5, the expansion sleeve 7 or the nut 6 and the respective component 2, 3. This in particular counteracts corrosion, which is damaging to the clamping connection, of the expansion bolt 5, of the expansion sleeve 7 or of the nut 6.

[0049] The corrosion prevention layer is preferably a glass fiber layer which is jointly integrated into the plastic matrix during the production of the corresponding fiber-reinforced plastic component 2, 3.

[0050] FIG. 2 shows a second variant of the arrangement according to the invention.

[0051] This variant differs from the variant shown in FIG. 1A merely in that the second component 3′ is produced not from a fiber-reinforced plastic but from a metal, for example aluminum.

[0052] In this preferred variant of the arrangement according to the invention, it is the case in particular that a corrosion prevention layer 8′ is arranged between the components 2′, 3′ and not on a side, facing toward the expansion sleeve 7′ or the nut 6′, of the component 3′.

[0053] In all of the abovementioned preferred variants of the arrangement according to the invention, it is also possible for a shim washer 9, 9′ to be arranged between the bolt head 51, 51′ and the corresponding component or between the expansion sleeve 7, 7′ and the corresponding component or between the nut 6, 6′ and the corresponding component.

[0054] The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.