Motorcycle Gear Position Sensor Splash Guard Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The gear position sensor on a motorcycle is exposed to mud and debris from the chain and stones splashed from the front wheel, leading to potential damage and requiring a special cover for protection.
Innovation Solution
A splash guard mechanism is integrated with the sprocket cover and inserted into a groove in the crankcase, providing protection to the gear position sensor without the need for a separate cover, reducing costs and assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a special cover is provided for the gear position sensor to protect it from mud and debris, then the protection reliability is improved, but the device complexity and cost increase
Solution Approach 1:
The splash guard is merged with the sprocket cover to form an integrated component. The sprocket cover now serves dual functions: covering the driving sprocket and protecting the gear position sensor. This eliminates the need for a separate special cover, reducing device complexity while maintaining protection reliability.
Solution Approach 2:
The sprocket cover is transformed into a multi-functional component that performs both its original function of covering the driving sprocket and the additional function of protecting the gear position sensor through the integrated splash guard structure.
2Reliability
If a special cover is provided for the gear position sensor, then the protection reliability is improved, but the manufacturing cost increases
Solution Approach 1:
By combining the splash guard function with the existing sprocket cover, the number of parts to be manufactured is reduced. Instead of manufacturing a separate special cover, the splash guard is integrated into the sprocket cover design, reducing manufacturing costs while maintaining the same protection level.
3Reliability
If a separate cover is provided for the gear position sensor, then the protection is improved, but the assembly complexity and man-hours increase
Solution Approach 1:
The splash guard is integrated with the sprocket cover as a single component, eliminating the need for separate assembly steps. The sprocket cover is installed in one operation, simultaneously providing sprocket coverage and sensor protection, thereby reducing assembly complexity and man-hours.
4Device complexity
If the splash guard is integrated with the sprocket cover, then the number of parts is reduced, but the ease of repair may be affected
Solution Approach 1:
While the splash guard is integrated with the sprocket cover, the design allows the splash guard portion to be separately replaced if damaged. The groove structure enables the splash guard to be detached and replaced independently from the main sprocket cover, maintaining ease of repair while reducing the total number of parts.
Data Source
AI summary
A splash guard mechanism of a gear position sensor for a motorcycle protects the gear position sensor without providing a special cover. In an engine of a motorcycle where a gear position sensor that senses a shift stage selected by a shift drum protrudes sideways in the vicinity of a driving sprocket for driving a rear wheel by a crankcase that holds a crankshaft, a splash guard mechanism of the gear position sensor is configured by a splash guard formed on a sprocket cover that covers the driving sprocket from the side and arranged between the gear position sensor and the driving sprocket, and a rib protrudes from the reverse side of the driving sprocket with the gear position sensor between them in the crankcase.