Vehicle Frame and Cabin Mounting Assembly with Bulkhead Gap
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Solution Overview
Problem
Existing vehicle mounting assemblies for body-on-frame vehicles are inefficient in packaging chassis-to-body attachments close to seat attachments, leading to increased assembly size, cost, and reduced design flexibility.
Innovation Solution
A mounting assembly that includes a frame structural member, a body structural member, and bulkheads with a gap between them, secured by fasteners passing through specific locations, allowing for efficient packaging and direct seat rail attachment to the cabin floor, eliminating the need for intermediate brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional mounting assemblies are used for chassis-to-body attachments, then the assembly size and cost increase, but the ability to package components close to seat attachments is reduced
Solution Approach 1:
The patent combines the chassis-to-body mounting function and the seat attachment function into a single integrated mounting assembly. The mounting assembly includes both a chassis-to-body mounting portion and a seat attachment portion, allowing both functions to be performed by one compact structure rather than requiring separate assemblies. This merging enables efficient packaging while maintaining design flexibility.
Solution Approach 2:
The mounting assembly is designed as a multi-functional component that simultaneously serves as both a chassis-to-body attachment mechanism and a seat attachment mechanism. The universal design allows the same assembly to perform multiple functions, reducing the overall number of components needed and enabling closer packaging of components without compromising design adaptability.
2Device complexity
If intermediate brackets are used for seat rail attachment, then the mounting system becomes more complex, but direct attachment to the cabin floor is simplified
Solution Approach 1:
The patent extracts and eliminates the intermediate bracket from the mounting system. By integrating the seat attachment function directly into the mounting assembly, the design removes the need for separate intermediate brackets, thereby simplifying the overall mounting system while maintaining ease of manufacture through the unified structure.
3Volume of moving object
If bulkheads are positioned close together, then the assembly becomes more compact, but fastener installation becomes more difficult
Solution Approach 1:
The patent positions the fasteners in different spatial dimensions and orientations within the mounting assembly. By strategically locating fasteners at different heights and angles, the design allows for compact bulkhead spacing while maintaining accessible fastener installation paths from multiple directions, thus resolving the conflict between compactness and installation ease.
Data Source
AI summary
An automotive vehicle includes a body with a cabin. The cabin includes a cabin floor, and a rail member is disposed within the cabin. The vehicle also includes a frame having a frame structural member. The vehicle additionally includes a body structural member disposed below the cabin floor. The vehicle further includes a first bulkhead disposed between the body structural member and the cabin floor, and a second bulkhead disposed between the body structural member and the cabin floor. A gap is provided between at least a portion of the first bulkhead and the second bulkhead. A first fastener secures the body structural member to the frame structural member. The first fastener passes through a first location in the gap. A second fastener secures the body structural member to the rail member. The second fastener passes through a second location in the gap.