Tailgate Spoiler Point Mounting for Aerodynamic Hatchback Ends
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Solution Overview
Problem
Existing motor vehicle tailgate spoiler arrangements face challenges in reconciling aerodynamic, aesthetic, and mounting criteria, particularly with pointed ends, as current solutions do not allow for reliable attachment.
Innovation Solution
A motor vehicle arrangement featuring a tailgate with an inner and outer layer, a spoiler extending laterally, and fastening means with a projecting part and screw attachment, allowing for secure and aesthetic mounting of pointed ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spoiler ends are designed as fine points to improve aerodynamics and aesthetics, then the aerodynamic performance and visual appearance are enhanced, but the mounting reliability deteriorates because conventional fastening methods cannot securely attach pointed ends
Solution Approach 1:
The spoiler is divided into two functional parts: the aesthetic fine-pointed end portion and the functional mounting portion with projecting parts. This segmentation allows the pointed end to maintain its aerodynamic and visual function while the separate projecting parts provide reliable mounting capability that would otherwise be incompatible with a purely pointed design.
Solution Approach 2:
The projecting parts act as intermediary elements between the spoiler body and the tailgate door. These intermediaries transfer the mounting function from the pointed end area to a location where conventional fastening methods (screws through the projecting parts) can be effectively applied, thus enabling reliable attachment without compromising the pointed end design.
2Shape
If the mounting points are positioned close to the spoiler ends to improve aesthetics, then the visual appearance is enhanced, but the structural stability deteriorates due to reduced mounting options at pointed ends
Solution Approach 1:
The spoiler structure is segmented into the aesthetic end portion and the mounting portion with projecting parts. This allows the mounting points to be positioned close to the ends for aesthetic purposes while the projecting parts provide sufficient structural engagement area to maintain stability.
Solution Approach 2:
The mounting solution moves from a two-dimensional surface mounting problem to a three-dimensional solution by using projecting parts that extend from the spoiler body. This dimensional transition creates additional mounting surface area near the pointed ends, enabling both aesthetic proximity and structural stability.
3Ease of manufacture
If conventional fastening methods are used to attach the spoiler, then the mounting process is simplified, but the adaptability deteriorates because these methods do not accommodate pointed end designs
Solution Approach 1:
The projecting parts serve multiple functions: they maintain the aerodynamic shape of the spoiler end, provide mounting surfaces for conventional fasteners, and enable attachment to the tailgate door. This multi-functionality allows conventional simple fastening methods to be used while achieving the complex goal of mounting pointed-end spoilers.
Solution Approach 2:
The projecting parts act as universal intermediaries that bridge between the specialized pointed end design and conventional mounting methods. They enable the adaptation of standard fastening procedures to non-standard spoiler geometries, thus maintaining ease of manufacture while achieving design versatility.
Data Source
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AI summary
An arrangement for a motor vehicle (100) comprising - a tailgate (1), including a structural layer and a coating layer, - a spoiler (2) disposed on the tailgate (1), the spoiler (2) including a finely pointed end (25), and - a fastening means suitable for fixing the fine point of the end (25) on the tailgate (1), the tailgate comprising: - a projecting portion, disposed near the end (25), extending in a given direction, the projecting portion being drilled in the given direction, - a hole made in the structural layer of the tailgate (1), and - a screw inserted into the hole in the structural layer and then into the drilling in the projecting portion.