Modular Vehicle Side Wall Assembly for Precise Alignment and Access
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Solution Overview
Problem
Existing sidewall constructions for vehicles, particularly ambulances, face issues such as high maintenance costs, limited accessibility, fluid accumulation, and assembly challenges due to tolerance discrepancies, leading to undesirable design and functional limitations.
Innovation Solution
A modular sidewall construction with a positive connection between two sidewall elements, featuring a play-free, force-locking design with guided assembly, allowing for seamless alignment and integration of sidewall elements using hook-and-loop fasteners and adapter elements to accommodate uneven vehicle surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If large-surface sidewall elements are bonded to the vehicle wall, then a customized sidewall cladding is created, but the interior of the vehicle wall becomes inaccessible and maintenance costs increase
Solution Approach 1:
The sidewall cladding is divided into multiple individual side wall elements that can be separately attached to the vehicle wall. These elements can be removed and reattached without damaging the vehicle wall, allowing access to the interior while maintaining the customized cladding appearance.
Solution Approach 2:
The side wall elements are designed with dynamic attachment capabilities, allowing them to be temporarily removed and reattached. This dynamic property enables maintenance access to the vehicle wall interior while preserving the customized sidewall cladding when needed.
2Manufacturing precision
If U-shaped trim parts are used to accommodate lower edges of side wall elements, then tolerance compensation is achieved, but fluid accumulation occurs due to gravity
Solution Approach 1:
Instead of using a U-shaped trim part that creates a horizontal fluid collection area, the invention directs fluids in a different dimension - allowing them to flow downward along the front surface of the side wall element to a drainage opening, preventing accumulation.
Solution Approach 2:
The harmful fluid accumulation function is extracted from the trim part design by providing separate drainage openings that actively remove fluids from the system, preventing them from collecting in tolerance compensation gaps.
3Manufacturing precision
If hook-and-loop fasteners are used for connection, then tolerance compensation is possible, but assembly guidance is lacking resulting in poor positioning
Solution Approach 1:
The invention merges two different connection mechanisms: rigid connection elements with guide sections provide assembly guidance and positioning, while hook-and-loop fasteners provide tolerance compensation. This combination achieves both precise positioning and flexibility.
Solution Approach 2:
Guide sections act as intermediaries between the side wall element and vehicle wall, providing assembly guidance and positioning. These guide sections work in conjunction with hook-and-loop fasteners to achieve both precise positioning and tolerance compensation.
4Manufacturing precision
If a play-free force-locking connection is implemented, then precise alignment is achieved, but assembly complexity increases
Solution Approach 1:
The guide sections are designed to preliminarily guide the side wall element into correct alignment with the vehicle wall before the force-locking connection is fully engaged. This preliminary guidance simplifies the final assembly process while maintaining precise alignment.
Solution Approach 2:
Instead of making the entire connection structure complex to achieve play-free fitting, the invention inverts the approach by using simple guide sections for alignment and relying on the natural force-locking property of the hook-and-loop fastener system to achieve precise positioning.
Data Source
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AI summary
The invention relates to a motor vehicle side wall construction for a motor vehicle with a vehicle wall (4) and at least one first side wall element (14) arranged inside the vehicle wall (4), which serves to produce a side wall panel and is attached relative to the vehicle wall (4), wherein a second side wall element (14) is arranged immediately adjacent above or below the first side wall element (14) such that by inserting the first side wall element (14) into a corresponding receiving section of the second side wall element (14) which cooperates with the insertion section (82) of the first side wall element (14) a positive locking connection is made in the transverse direction of the vehicle.