Vehicle Bumper Support via Headlight Housing
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Solution Overview
Problem
Existing support arrangements for vehicle bumpers require high precision and dexterity during assembly, and are prone to damage in low-speed crashes, as they are often integrated with the headlight housing at predetermined breaking points, leading to increased installation complexity and potential damage to the headlight during accidents.
Innovation Solution
A support arrangement where the bumper is directly supported on the headlight housing via vertically-oriented support elements, allowing for alignment without additional parts and enabling relative movement between the bumper and headlight during crashes, while maintaining a uniform and gap-free joint, and incorporating a flexible connection for vibration decoupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the bumper support is integrally molded to the headlight housing via predetermined breaking points, then the assembly process is simplified, but the headlight can be damaged in minor collisions as the bumper support breaks away
Solution Approach 1:
The bumper support is divided into separate functional elements: a mounting portion attached to the headlight housing and a bumper carrier portion holding the bumper cover. These portions are connected through a decoupling mechanism that allows relative movement, enabling the mounting portion to remain fixed while the bumper carrier can move independently during impacts.
Solution Approach 2:
A decoupling mechanism acts as an intermediary between the headlight housing and the bumper cover. This mechanism includes a support element with a first end connected to the headlight housing and a second end connected to the bumper carrier, allowing controlled relative movement while maintaining connection.
2Manufacturing precision
If the bumper support is firmly screwed to the headlight housing with elongated holes, then the alignment precision is improved, but the assembly effort and complexity increase significantly
Solution Approach 1:
The support element is pre-configured with a specific geometry that provides self-alignment during assembly. The first end of the support element is designed to engage with a receptacle in the headlight housing, and the second end is designed to engage with the bumper carrier, allowing the components to align themselves during the assembly process without requiring precise manual positioning.
Solution Approach 2:
The support element design enables self-alignment and self-positioning during assembly. The geometric configuration of the support element, including its connection to the receptacle and the bumper carrier, allows the components to find their correct positions automatically during the assembly process, eliminating the need for complex alignment procedures.
3Reliability
If additional positioning devices and separate support structures are used for bumper alignment, then the alignment reliability is improved, but the number of components and manufacturing cost increase
Solution Approach 1:
The support element combines multiple functions into a single component: it provides structural support, enables alignment, and allows for controlled relative movement between the headlight housing and the bumper carrier. This integration eliminates the need for separate positioning devices and support structures.
Solution Approach 2:
The support element serves multiple purposes: it acts as a mounting connection, provides alignment functionality, enables relative movement during impacts, and maintains the bumper cover position. This multi-functionality reduces the overall number of components needed in the bumper assembly system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution simplifies assembly, reduces tolerance fluctuations, and protects the headlight from damage during accidents by allowing relative movement between the bumper and headlight, while maintaining a stable and uniform joint, and decoupling vibrations to prevent damage to sensitive components.
Implementation Method 1
The bumper carrier (12) is supported by means of at least one support element (22) on the respective headlight housing (28) in the vehicle's vertical direction (z-direction)
Implementation Method 2
incorporating a flexible connection for vibration decoupling
Data Source
Figure 1a~3b
Figure 4a~6c
AI summary
The invention relates to a support assembly of a bumper (10) on a front-end region of a motor vehicle, said assembly comprising a front-end support structure (34), on which corresponding headlights (30) are held, each having a headlight housing (28). The support assembly also comprises a bumper cover (14) of the bumper (10) held in place by means of at least one bumper support structure (12), said bumper support structure (12) being supported on each corresponding headlight housing (28) of each corresponding headlight (30) by means of at least one support element (22). The invention also relates to a headlight (30) having a headlight housing (28), said headlight housing comprising at least one slot (26) in which a support element (22) associated with a bumper (10) can be supported. The invention further relates to a method for producing a support assembly of this type.