Instrument Panel Support Brackets With Datum-Based Alignment
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Solution Overview
Problem
Existing instrument panel support structures in vehicles lack efficient mechanisms to securely locate and position instrument panels in both fore/aft and up/down directions within the passenger compartment, leading to potential instability and misalignment.
Innovation Solution
A support structure comprising lateral and end brackets with datum features allows for precise attachment to vehicle body panels, enabling the instrument panel assembly to be securely positioned in a three-dimensional coordinate system, using abutting edges and projections to ensure accurate alignment and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional stamped and welded steel sheet metal assemblies with multiple supporting brackets are used, then the instrument panel can be securely supported, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The support structure is divided into distinct functional components: lateral support brackets attached to body panels and end brackets attached to the instrument panel assembly. Each bracket is a separate element that performs a specific locating function, simplifying the overall design while maintaining secure support through modular assembly
Solution Approach 2:
Datum features serve as intermediary reference elements between the lateral support brackets and end brackets. These standardized geometric features (support surfaces, edges, projections) mediate the connection by providing precise abutting interfaces that ensure proper positioning without requiring complex direct coupling mechanisms
2Reliability
If multiple supporting brackets with large surface area are used for secure attachment, then the instrument panel can be firmly fastened, but the manufacturing precision requirements increase
Solution Approach 1:
Datum features are pre-defined geometric reference elements built into the bracket designs during manufacturing. These pre-established reference surfaces, edges, and projections eliminate the need for field alignment operations, as the brackets are designed to mate together through predetermined abutting interfaces that self-align when assembled
Solution Approach 2:
The design transitions from large surface area contact brackets to compact brackets with precise datum features. By changing the geometric parameters of the brackets to include specific support surfaces, edges, and projections, the system achieves secure fastening through precise point and line contacts rather than requiring large contact areas
Data Source
AI summary
An instrument panel support structure is configured for locating an instrument panel assembly in a fore/aft direction and an up/down direction within a passenger compartment of a vehicle. The support structure includes a lateral support bracket and an end bracket. The lateral support bracket is attached to a body panel of the vehicle and presents a support surface that defines an up/down datum feature and includes a rear edge that presents a fore/aft datum feature. The end bracket is attached to an end of the instrument panel assembly. The end bracket presents a first edge and a projection that extends from the first edge. The first edge abuts the support surface of the up/down datum feature to locate the instrument panel assembly in the up/down direction. The projection abuts the rear edge of the fore/aft datum feature to locate the instrument panel assembly in the fore/aft direction.