Work Vehicle Dash Panel Coupling for Wavy Resin Front Sections
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Solution Overview
Problem
The dash panel of work vehicles, typically made of synthetic resin, tends to develop wavy front portions due to molding and long-term sunlight exposure, leading to decreased strength when coupled with the upper panel.
Innovation Solution
A gap is introduced between the front end of the dash panel's front portion and the coupler, allowing the dash panel to accommodate waves, ensuring a strong and durable connection with the upper panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the dash panel is molded as a large synthetic resin component, then the front portion may develop vertical curves (wavy surface) during molding and long-term sunlight exposure, but this waviness reduces the coupling strength with the upper panel
Solution Approach 1:
The front portion of the dash panel is segmented into multiple coupling portions arranged in the lateral direction. Each coupling portion can independently accommodate waviness locally, allowing the coupling to maintain strength despite surface irregularities caused by molding or sunlight exposure.
Solution Approach 2:
The coupling portions are designed with specific local geometric features that enable them to adapt to wavy surfaces. Each coupling portion has a structure that can conform to local variations in the front surface, ensuring reliable coupling even when the overall front portion is not perfectly flat.
2Shape
If the front portion is made to overlie the back portion of the upper panel for design purposes, then aesthetic appearance is improved, but any waviness in the front portion directly affects the coupling reliability
Solution Approach 1:
By dividing the coupling interface into multiple discrete coupling portions laterally arranged, the design allows the front portion to overlie the back portion for aesthetic purposes while each individual coupling portion can independently compensate for local waviness, maintaining coupling reliability despite the overlaid configuration.
3Duration of action of stationary object
If the dash panel is exposed to sunlight for extended periods, then the front portion develops waviness over time, but this reduces the long-term durability of the coupling
Solution Approach 1:
The coupling structure is divided into multiple lateral segments that can independently accommodate time-dependent waviness development. As the front portion develops irregularities during long-term sunlight exposure, each coupling portion can adapt locally, ensuring that coupling strength is maintained throughout the extended service life of the vehicle.
Solution Approach 2:
The coupling portions are designed in advance with geometric features that provide tolerance for future waviness development. This preemptive design allows the coupling to accommodate irregularities that will develop during long-term sunlight exposure, ensuring sustained coupling strength throughout the vehicle's service life.
Data Source
AI summary
A work vehicle includes a dash panel having a front portion and an upper panel disposed forward of the dash panel and having a back portion, the front portion being over the back portion with a gap present between a front end of the front portion, and a coupler and facing forward from the front end.