Modular Truck Counterframe with Grooved Side Members
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Solution Overview
Problem
Current methods for fitting trucks with interchangeable bodies face challenges in finding sufficient space for hydraulic systems and components, requiring specialized firms and lengthy installation processes, often resulting in idle vehicles and loss of profit.
Innovation Solution
A modular counterframe that can be joined to the truck frame, featuring grooved side members, cross members, and prismatic-headed screws, allowing for flexible positioning and anchoring of interchangeable bodies, thereby optimizing the use of available space and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional rigid counterframes with fixed brackets and pins are used, then the structural strength is sufficient, but the installation time is lengthy and space utilization is poor
Solution Approach 1:
The counterframe is divided into modular components: side members with longitudinal grooves, cross members, and separate anchoring means. This segmentation allows for rapid assembly and disassembly, enabling quick adaptation of trucks for different bodies without lengthy installation processes
Solution Approach 2:
The fixing means are designed to be movable along the longitudinal grooves of the side members, allowing dynamic positioning during installation. This enables flexible adaptation to different body configurations and speeds up the fitting process by eliminating the need for precise pre-positioning
2Ease of manufacture
If specialized firms perform the fitting process, then the manufacturing precision is maintained, but the installation cost increases
Solution Approach 1:
The counterframe system is provided as a complete modular kit with standardized components (grooved side members, cross members, anchoring means). This standardization enables truck owners to perform the installation themselves using basic tools, eliminating the need for specialized firms and reducing installation costs
Solution Approach 2:
The modular design with clear assembly features (grooves, fixing means with translation capability) allows the truck owner to independently install and remove the counterframe and bodies, providing a self-service solution that eliminates professional fitting fees
3Reliability
If fixed hydraulic systems are installed on the truck frame, then the hydraulic functionality is reliable, but the space utilization is insufficient
Solution Approach 1:
The modular counterframe with standardized anchoring means serves multiple functions: it provides structural support, mounting points for bodies, and integration for hydraulic systems. This multi-functionality maximizes the utility of the limited space on the truck frame
Solution Approach 2:
The longitudinal grooves in the side members provide a third dimension for positioning (along the length of the grooves), allowing flexible placement of anchoring means and hydraulic components to optimize space utilization while maintaining structural integrity
4Adaptability or versatility
If modular counterframes with movable fixing means are used, then the adaptability for different bodies is improved, but the device complexity increases
Solution Approach 1:
The counterframe is segmented into standardized modules (side members with grooves, cross members, anchoring means) that can be independently positioned and assembled. This modular segmentation provides adaptability for different body configurations while keeping each component relatively simple in design
Solution Approach 2:
The standardized grooved side members and anchoring means serve as universal interfaces for various body types. The same basic structure accommodates different bodies by simply repositioning the anchoring means along the grooves, providing versatility without requiring complex specialized components for each body type
Data Source
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Figure 10
AI summary
A counterframe (24) is modular starting from a series of elements that make it joinable to the frame of a truck to be fitted up for transporting interchangeable bodies, for handling said bodies and for coupling them straight onto the counterframe. The counterframe is therefore an interface between the truck and the interchangeable body. The core of the interface is a pair of side members (25, 26) having longitudinal grooves (36) along the entire length of their two opposite faces. The side members can be joined together by a cross member (27), by four corner angles and bolts, and be joined to the frame of the truck by means of drilled plates and bolts.