Common Chassis Layout for Cab-Forward and Cab-Aft Tractors
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Solution Overview
Problem
Ground support tractor manufacturers face inefficiencies due to the need to prefabricate multiple chassis variants for customers who prefer either a cab forward or cab aft configuration, requiring additional warehouse space and capital investment.
Innovation Solution
A common chassis design that can be assembled in either a cab forward or cab aft configuration, with interchangeable seat and battery positions, allowing a single chassis variant to be prefabricated for both configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple chassis variants are prefabricated to meet different customer preferences (cab forward and cab aft configurations), then customer needs are satisfied, but warehouse space requirements and capital investment increase
Solution Approach 1:
The patent applies universality by designing a single common chassis that can serve multiple functions - it can be configured as either a cab forward or cab aft tractor by simply repositioning the seat assembly and battery system between forward and aft mounting locations. This eliminates the need to maintain separate inventory of different chassis variants, thereby reducing warehouse space requirements while still satisfying diverse customer preferences
2Adaptability or versatility
If multiple chassis variants are prefabricated to meet different customer preferences, then customer needs are satisfied, but capital investment increases
Solution Approach 1:
The common chassis design allows a single base unit to be adapted to multiple configurations, reducing the total quantity of components and materials that need to be invested in inventory. Instead of purchasing and storing separate chassis for cab forward and cab aft models, the manufacturer invests in one versatile chassis design that can be configured as needed
3Area of stationary object
If a common chassis is used for both cab forward and cab aft configurations, then warehouse space and capital investment are reduced, but the complexity of assembling different configurations increases
Solution Approach 1:
The chassis is segmented into modular components with standardized mounting locations. The seat assembly and battery system are designed as separate, relocatable modules that can be independently positioned at either forward or aft mounting locations. This segmentation simplifies the reconfiguration process, as each component can be easily removed and reinstalled at different positions without requiring complex disassembly or customization
Solution Approach 2:
The mounting locations are designed to be dynamically adaptable - the same chassis can switch between cab forward and cab aft configurations by simply relocating components. This dynamic design allows the chassis to adapt to different configuration requirements without permanent modifications, reducing assembly complexity compared to fixed-configuratio
Data Source
AI summary
A ground support tractor for providing ground support services at an airport. The ground support tractor has a cab forward configuration and a cab aft configuration. The ground support tractor includes a common chassis having a forward mounting location and an aft mounting location. An operator tub is coupled to the common chassis. In the cab forward configuration, the operator tub is coupled to the forward mounting location. In the cab aft configuration, the operator tub is coupled to the aft mounting location.