Motor Vehicle Window Lifter Support Component Stiffening
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Solution Overview
Problem
Existing motor vehicle window regulator support components face challenges in achieving effective stiffening across surface segments offset in height, leading to reduced rigidity and potential bending points at transitions, due to discontinuation of stiffening structures.
Innovation Solution
A support component with a stiffening structure that extends partially over two surface segments, designed to be transverse on one side and set back on the other, incorporating a combination of beads and ribs that transition ramp-like, ensuring continuous stiffening effect across segments and maintaining rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a stiffening structure extends over two surface segments offset in height, then the stiffening effect should be continuous, but the transition between surface segments reduces rigidity and creates bending points
Solution Approach 1:
The stiffening structure employs different local geometries (beads on one side surface, ribs on the other) to address the specific requirements of each surface segment. The bead provides continuous stiffening along the transition zone, while the rib reinforces the area where rigidity is most needed, creating locally optimized stiffening without discontinuity.
Solution Approach 2:
The stiffening structure utilizes both side surfaces of the support component to provide stiffening. By forming a bead on one side surface and a rib on the opposite side surface, the solution distributes the stiffening function across three dimensions, maintaining continuous support through the thickness of the component and avoiding weak points at transitions.
2Device complexity
If only wall thickness is used for stiffening on offset surface segments, then installation space is optimized, but insufficient stiffening effect is achieved across height transitions
Solution Approach 1:
Instead of relying solely on increasing wall thickness in the vertical dimension, the solution utilizes the lateral dimension by forming beads and ribs that extend across the surface segments. This provides effective stiffening while maintaining the thin-walled construction and optimizing installation space.
Solution Approach 2:
The stiffening structure combines different geometric forms (bead and rib) made from the same material but with different cross-sectional profiles. This composite approach allows the structure to achieve high stiffening effectiveness across offset surface segments while keeping the overall wall thickness minimal, thus optimizing installation space.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
The invention relates to a support component (AGT) for a motor vehicle, in particular for a motor vehicle door, which spans a support plane (xz plane) and defines two mutually opposite side surfaces (A1, A2) for the arrangement of functional components of a motor vehicle window lifter, the support component (AGT) having at least one reinforcing structure (V1 - V5) for reinforcing the support component (AGT), which structure extends on both side surfaces (A1, A2) along the support plane (xz plane) and along an extension direction (L), and wherein the support component (AGT) forms at least two surface segments (F1 - F5) which, on both side surfaces (A1, A2), are arranged in the extension direction along the support plane (xz plane). According to the invention, the reinforcing structure (V1) is formed in such a way that, on one side surface (A1), it runs so as to protrude transversely with respect to the support plane (xz plane) with respect to both surface segments (F1, F3; F2, F3; F2, F4; F3, F4) and, on the other side surface (A2), runs so as to be set back with respect to one surface segment (F1; F2; F3) of the two surface segments and to protrude with respect to the other surface segment (F3; F4) of the two surface segments.