Dual-Axis Handbrake Lever for ATV Reverse Engagement
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Solution Overview
Problem
Current handbrake systems in saddle-type vehicles, such as ATVs and snowmobiles, require a push-button mechanism to engage reverse, which can be cumbersome and may not provide intuitive operation, especially when combined with braking functions.
Innovation Solution
A mechanism featuring a first lever that pivots about a first axis and a second lever that pivots about a second axis offset from the first, allowing for engagement and disengagement of the braking system, reverse lockout system, and parking brake mechanism, with selective positioning to simplify reverse gear engagement and prevent accidental disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push-button mechanism is used to engage reverse, then reverse gear can be engaged, but the operation becomes cumbersome and less intuitive
Solution Approach 1:
The patent combines the reverse engagement function with the existing brake lever system. The brake lever assembly now serves dual purposes: applying brakes and engaging reverse gear. This integration eliminates the need for a separate push-button mechanism, making the operation more intuitive while maintaining acceptable system complexity.
Solution Approach 2:
The brake lever assembly is designed to perform multiple functions: it can apply the brake, engage reverse gear, and potentially serve as a parking brake. This multi-functionality reduces the number of separate controls needed, improving ease of operation without significantly increasing overall device complexity.
2Ease of operation
If reverse engagement is integrated with brake lever, then operation becomes more intuitive, but the risk of accidental disengagement increases
Solution Approach 1:
The system incorporates a lockout mechanism that prevents reverse engagement unless specific conditions are met (brake applied, gear in neutral). This preliminary anti-action ensures that reverse cannot be accidentally engaged, maintaining reliability while allowing intuitive operation when proper conditions are established.
Solution Approach 2:
The brake must be applied first as a preliminary action before reverse engagement is possible. This sequence ensures the vehicle is stopped and in the correct gear state before reverse can be engaged, preventing accidental disengagement while maintaining operational simplicity.
3Adaptability or versatility
If a second lever is added for reverse engagement, then functionality is improved, but the device complexity increases
Solution Approach 1:
The second lever for reverse engagement is nested within or integrated with the brake lever assembly. This nesting approach allows the additional functionality to be added without creating a completely separate control mechanism, thereby improving versatility while minimizing the increase in overall device complexity.
Data Source
AI summary
An apparatus may, for example, include a first lever pivoting about a first axis. The apparatus may also include a second lever mounted with the first lever, pivoting about a second axis, and biased to a first position. The first lever can be configured to engage a braking system of a vehicle when the first lever is pivoted about the first axis and the second lever is in the first position. The second lever can be configured to be pivoted about the second axis to a second position. The first lever can be configured to disengage a reverse lockout system of the vehicle when the second lever is in the second position. The second lever can be configured to be pivoted about the second axis to a third position, which cases the first lever to engage a parking brake mechanism of the vehicle.