Modular Drawbar Shaft for Industrial Trucks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drawbar shafts for industrial trucks face challenges in balancing mechanical stability and aesthetic appearance, with metal constructions being costly and complex while plastic constructions lack strength and impact resistance, and requiring high development efforts for varying visual properties.
Innovation Solution
A modular drawbar design comprising a metal support structure for mechanical strength and a cladding component for aesthetic appearance, allowing for different optical versions with the same metal support and adapted cladding components, reducing development and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the drawbar shaft is designed as an entire metal construction, then mechanical strength and robustness are improved, but construction effort and manufacturing costs increase significantly
Solution Approach 1:
The drawbar shaft is divided into two separate components: a metal support structure providing mechanical strength and a cladding component providing aesthetic appearance. This segmentation allows each component to be optimized for its specific function, reducing the overall construction effort while maintaining both strength and appearance requirements.
Solution Approach 2:
The invention uses a composite structure combining metal and plastic materials. The metal support structure provides the necessary mechanical strength and robustness, while the plastic cladding component provides the desired aesthetic appearance and complex shapes, achieving a balance between strength and manufacturing complexity.
2Shape
If the drawbar shaft is designed as an entire plastic construction, then aesthetic shape and appearance are improved, but mechanical strength and impact resistance decrease
Solution Approach 1:
The drawbar shaft is segmented into a metal support structure for strength and a plastic cladding component for aesthetic shaping. This allows the plastic component to provide complex aesthetic shapes while the metal structure maintains the necessary mechanical strength and impact resistance.
Solution Approach 2:
The composite construction combines metal and plastic materials, where the metal support structure ensures mechanical strength and the plastic cladding provides aesthetic appearance and complex shapes, resolving the contradiction between shape and strength.
3Shape
If different versions of drawbars with different visual properties are produced, then optical properties are improved, but development effort increases due to requiring different metal structures
Solution Approach 1:
The drawbar shaft is segmented into a standardized metal support structure and interchangeable cladding components. This allows different aesthetic versions to be produced by simply changing the cladding components while keeping the metal support structure the same, significantly reducing development effort for new versions.
Solution Approach 2:
The metal support structure is designed as a universal component that can accommodate multiple different cladding components with varying aesthetic properties. This multi-functionality allows a single metal structure to support multiple drawbar versions, reducing development time and effort.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a drawbar (7) for a forklift truck with a drawbar shaft (10) which can be attached to the forklift truck (1) at a first end by means of a joint connection (11) and can be connected to a drawbar head (12) at a second end. The drawbar shaft (10) of the drawbar (7) is formed from a metallic support structure (15) which is provided at a first end with a joint flange (13) of the joint connection (11) and at a second end with a mounting flange (21) for attaching the drawbar head (12), and a cladding component (16) enclosing the metallic support structure (15).