External-Bearing Throttle Cam Assembly for Universal Grip Compatibility
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Solution Overview
Problem
Existing throttle tubes with internal bearings require custom manufacturing for different motorcycle models and are limited to rubber grips, increasing costs and reducing versatility.
Innovation Solution
A throttle housing and cam assembly with an external bearing located between the cam and throttle housing, allowing separate components that can be used with any throttle tube and both rubber and over-molded grips, reducing manufacturing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bearing is located inside the throttle tube or cam, then the throttle operation becomes smoother with reduced friction, but the device complexity increases and requires custom manufacturing for different motorcycle models
Solution Approach 1:
The invention divides the throttle system into separate modular components: the throttle tube assembly and the throttle housing with cam assembly. The bearing is integrated into the throttle housing rather than being inside the throttle tube or cam, allowing independent manufacturing and assembly of these components. This segmentation enables the bearing to provide smooth operation while avoiding the complexity of custom-manufactured integrated assemblies for different motorcycle models.
Solution Approach 2:
The bearing acts as an intermediary element located between the cam and throttle housing, providing a standardized friction-reduction solution that can be applied across different motorcycle models without requiring custom integration into each specific throttle tube or cam design.
2Ease of operation
If the bearing is integrated inside the cam or throttle tube, then friction is reduced for smoother throttle control, but the adaptability to different grip types is lost
Solution Approach 1:
By separating the bearing integration from the throttle tube and cam components and instead incorporating it into the throttle housing assembly, the invention maintains compatibility with both rubber grips and over-molded grips. The modular design allows the same throttle tube and cam to work with different grip types while the bearing provides consistent smooth operation through the housing assembly.
3Ease of operation
If custom-manufactured throttle tubes with internal bearings are produced for each motorcycle model, then the throttle operation is optimized, but the manufacturing cost increases
Solution Approach 1:
The invention separates the bearing integration into the throttle housing assembly rather than requiring custom manufacturing of the throttle tube or cam for each motorcycle model. This allows the throttle tube and cam to be standardized components that can be manufactured once and used across multiple models, while the bearing-equipped housing assembly serves as a compatible interface, significantly reducing manufacturing costs.
Solution Approach 2:
The bearing-integrated throttle housing assembly serves as a universal component that can accommodate different motorcycle models and grip types, eliminating the need for model-specific custom manufacturing while maintaining optimized throttle responsiveness through the bearing's friction-reduction capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a cost-effective, versatile throttle housing and cam assembly that can be used with various throttle tubes and grip types, ensuring smooth operation with reduced friction and improved throttle control.
Implementation Method 1
a bearing mounted on the outer bearing flange... an outer stationary portion of the bearing is received firmly in the bearing groove and the cam is free to move in the cam groove
Data Source
AI summary
A throttle housing and cam assembly includes a cam mountable on an end of a throttle tube, an outer bearing flange and a cam head. The cam head has one or more cable receiving apertures and a cable groove for receiving a throttle cable. A bearing is mounted on the outer bearing flange. A throttle housing is formed with a bearing groove and a cam groove. An outer stationary portion of the bearing is received firmly in the bearing groove and the cam is free to move in the cam groove.