Diagonal strut device, method for manufacturing same and motor vehicle underfloor reinforced by means of diagonal structure device

A technology for motor vehicles and diagonal struts, which is applied to vehicle components, substructures, superstructures, etc., can solve the problems of aggravating the structural load of the vehicle, adverse effects on driving safety and comfort, and achieve the effect of high torsional stiffness.

Inactive Publication Date: 2013-08-07
DAIMLER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These tension and compression forces are caused by undesired vibrations and deformations of the vehicle body that may occur during driving, which can adversely affect driving safety and comfort and increase the load on the vehicle structure

Method used

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  • Diagonal strut device, method for manufacturing same and motor vehicle underfloor reinforced by means of diagonal structure device
  • Diagonal strut device, method for manufacturing same and motor vehicle underfloor reinforced by means of diagonal structure device

Examples

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Embodiment Construction

[0033] The diagonal strut arrangement according to the invention is a so-called frame structure which is shown by way of example in the drawing.

[0034]The diagonal strut arrangement 1 consists of four extruded FVK profile struts 2 , which are connected to one another via a central cast light metal node 3 . Of course, other numbers of struts are possible, for example six struts. The connection point element 4 provided for the connection to the underbody of the motor vehicle is likewise made of a light metal material. The diagonal bracing device 1 thus formed can be fastened to the base during the assembly phase, or it can already be fixed to the base during the framework construction phase. This can be achieved by the cast connection node element 4 , which can have corresponding connection aids for this purpose.

[0035] The weight advantage of the FVK strut 2 is maintained by using light metal material for the production of the joints 3 , 4 . Light metal material is a den...

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Abstract

The present invention provides a diagonal strut device (1) for reinforcing arrangement on an underfloor of a motor vehicle, wherein the diagonal strut device (1) comprises a plurality of struts (2) composed of a fibre-reinforced plastic composite material, which struts (2) extend away from a central node element (3). Each strut (2) can be connected by the end of each strut (2) to the underfloor, wherein the end of each strut (2) faces away from the central node element (3). For this purpose a connecting node element (4) is arranged at the end of each strut (2), the end faces away from the central node element (3), wherein the central node element (3) and the connecting node elements (4) are embodied from a lightweight metal material. The central node element (3) and the connecting node elements (4) are connected here to the struts (2) by means of an at least materially joined cast connection. In addition, the present invention relates to a method for manufacturing the diagonal strut device (1) and to the motor vehicle underfloor which uses the diagonal strut device (1) for reinforcement.

Description

technical field [0001] The invention relates to a diagonal strut arrangement according to the preamble of patent claim 1 for a reinforced mounting on the underbody (underframe) of a motor vehicle. Furthermore, the invention relates to a method for producing a diagonal strut arrangement, in which a plurality of struts made of a fiber-reinforced plastic (polymer) composite material are each arranged and connected adjacent to one another with a first end section, At the same time, the invention also relates to a motor vehicle underbody according to the preamble of patent claim 13 , in which the diagonal strut arrangement is used. Background technique [0002] In order to increase the torsional rigidity, diagonal struts arranged on the underbody of motor vehicles are known. This is important especially in convertible vehicles with a self-supporting body due to the lack of a solid roof structure. For example above the spare wheel well, tension and compression forces are conduct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D21/06B62D25/08B62D29/00
CPCB62D29/041B62D21/06B62D25/20B22D19/00B22D19/04B22D17/00B62D29/004B62D29/001B62D25/087
Inventor D·安德烈K·艾佩尔T·鲁德拉夫A·萨尔基奇M·斯雷泰诺维奇
Owner DAIMLER AG
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