Interlocking Cast Vehicle Body Components Assembly

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Solution Overview

Problem

Current vehicle manufacturing methods require extensive welding of steel components, which is labor-intensive and costly, and do not allow for easy reconfiguration of vehicle body styles.

Innovation Solution

A method of manufacturing vehicles using interlocking cast vehicle body structure components with integral mating features, allowing assembly without welding and enabling multiple vehicle body styles to be constructed on a common assembly line, with the potential for reconfiguration by replacing select components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to assemble vehicle body components, then structural strength is improved, but labor intensity and manufacturing cost increase

Engineering Contradiction:
Improvestructural strengthVSAvoidlabor intensity
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces the welding process (thermal/mechanical system) with a mechanical interlocking system using cast components featuring integral mating features. The cast body structure components include built-in mating features that mechanically interlock to replace weld joints, eliminating the need for welding operations while maintaining structural integrity through precision-cast geometric features.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the manufacturing parameter of body structure components from stamped steel requiring welding to cast components with integral mating features. This parameter change in the manufacturing process (from stamping to casting) and in the component design (adding integral mating features) enables mechanical interlocking that eliminates welding while preserving structural strength.

Inventive Principle:
Principle #35Parameter changes

2Strength

If welding is used to assemble vehicle body components, then structural strength is improved, but manufacturing cost increases

Engineering Contradiction:
Improvestructural strengthVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces the welding process (thermal/mechanical system) with a mechanical interlocking system using cast components featuring integral mating features. The cast body structure components include built-in mating features that mechanically interlock to replace weld joints, eliminating the need for welding operations while maintaining structural integrity through precision-cast geometric features.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the manufacturing parameter of body structure components from stamped steel requiring welding to cast components with integral mating features. This parameter change in the manufacturing process (from stamping to casting) and in the component design (adding integral mating features) enables mechanical interlocking that eliminates welding while preserving structural strength.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If traditional vehicle body assembly methods are used, then structural integrity is maintained, but adaptability for different body styles is reduced

Engineering Contradiction:
Improvestructural integrityVSAvoidbody style reconfiguration
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent divides the vehicle body structure into multiple separate cast components (inner fender structures, closure frame structures, floor structures, etc.), each with integral mating features. This segmentation allows individual components to be selectively replaced or reconfigured to create different body styles while maintaining overall structural integrity through the interlocking mating features between components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent designs cast body structure components with universal integral mating features that can accommodate different body style configurations. The same set of cast components with standardized mating features can be used across multiple vehicle body styles, allowing a common platform to support various configurations (sedan, SUV, truck, etc.) by simply changing or repositioning specific components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8317964B2Method of manufacturing a vehicle
Publication Date: 2012.11.27 FORD MOTOR CO
  • US8317964B2 patent drawing
  • US8317964B2 patent drawing
  • US8317964B2 patent drawing

AI summary

A method of manufacturing a vehicle. A set of vehicle body structure components is assembled with interlocking mating features.