Three-part Chassis with Lowered Center for Tool-carrying Vehicle
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Solution Overview
Problem
Existing self-propelled tool-carrying vehicles are poorly balanced and have inefficient energy supply and transmission systems, making them heavy, complex, and difficult to maintain.
Innovation Solution
A self-propelled vehicle with a three-part chassis design where the middle part is lowered to lower the center of gravity, with the engine and tools placed on this part, and the cabin and cargo on separate, removable units, allowing for better balancing and maintenance, and featuring a configuration where the heaviest components are positioned opposite to the side tool operation to achieve balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the engine and tools are placed on the same side of the chassis, then the energy supply system is simplified, but the vehicle becomes unbalanced and difficult to control
Solution Approach 1:
The patent applies asymmetry by positioning the engine and tools on opposite sides of the chassis rather than symmetrically or on the same side. The engine is placed on one side while the tool is positioned on the opposite side, creating an asymmetric layout that achieves balance. This asymmetric arrangement allows the heavy components to counterbalance each other, improving vehicle stability and control while maintaining a relatively simple energy supply system.
2Strength
If the chassis is made as a single integrated unit, then structural strength is improved, but maintenance becomes difficult and time-consuming
Solution Approach 1:
The patent applies segmentation by dividing the chassis into modular sections or platforms that can be independently accessed and maintained. Rather than a fully integrated monolithic structure, the chassis is designed with separable modules allowing technicians to access specific components (engine, tool, hydraulic system) independently. This modular segmentation maintains overall structural strength while significantly improving maintenance accessibility and reducing repair time.
3Device complexity
If heavy components are concentrated in one location, then the energy transmission system is simplified, but the vehicle becomes top-heavy and unstable
Solution Approach 1:
The patent applies the counterweight principle by strategically positioning heavy components (engine and tool) on opposite sides of the chassis. This creates a balanced weight distribution where the heavy engine on one side is counterbalanced by the heavy tool on the other side, preventing the vehicle from being top-heavy or unstable. The counterbalancing arrangement simplifies the energy transmission system by allowing direct coupling while maintaining vehicle stability through proper weight distribution.
4Ease of manufacture
If the vehicle is designed for a specific hand configuration (right or left), then manufacturing is simplified, but adaptability to different operational requirements is reduced
Solution Approach 1:
The patent applies universality by designing the chassis with symmetric or mirrored mounting points that can accommodate both right-hand and left-hand configurations. The engine and tool positions are designed to be interchangeable or reconfigurable, allowing the same base platform to serve both hand configurations. This universal design approach maintains manufacturing simplicity through standardized components while providing adaptability to different operational requirements and user preferences.
Data Source
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AI summary
The car has a frame provided with front and rear parts (A, B) between which a central part (C) is provided. The central part is lowered with respect to the front and rear parts so that the center of gravity of the car is lowered. A lateral working tool e.g. articulated arm, an engine e.g. heat engine or electric engine, and a tool driving unit i.e. engine block, are positioned on the central part. A cabin is provided on the front part, and a load volume is provided on the rear part. The heat engine is arranged on a side opposite to a side in which the lateral working tool is worked.