Telescopic Fork Suspension Lockout With Automatic Catch Hook Engagement
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Solution Overview
Problem
Existing suspension lockout devices for vehicles with telescopic fork suspension are complex, require synchronization between operators, and are not adjustable, making them difficult to use and unreliable for various suspension-to-protection mounting configurations.
Innovation Solution
A suspension lockout system with a first assembly attached to the upper telescopic tube and a second assembly attached to the fork protector, featuring a lockout finger and catch hook mechanism, along with elastic return means, allowing for automatic operation and adjustable positioning to lock the suspension effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a suspension lockout device is designed to be operated by a single pilot, then the ease of operation is improved, but the device complexity increases due to the need for automatic operation mechanisms
Solution Approach 1:
The lockout device operates automatically through the suspension's own movement. When the pilot compresses the suspension, the lockout finger is pushed into the catch hook, locking the suspension without requiring any additional manual operation. The system uses the suspension's descent and rebound motion to trigger the locking and unlocking mechanisms automatically.
Solution Approach 2:
The lockout finger is pre-positioned to protrude from the fork protector before suspension compression. The catch hook is pre-configured with engagement surfaces that will automatically engage with the lockout finger during suspension descent, ensuring the locking action occurs in advance of the suspension reaching its compressed state.
2Adaptability or versatility
If the lockout device is made adjustable for different suspension-to-protection distances, then the adaptability is improved, but the device complexity increases due to adjustment mechanisms
Solution Approach 1:
The lockout device is divided into separable components: the fork protector assembly with lockout finger and the fork assembly with catch hook. This segmentation allows the fork protector to be independently positioned at different distances from the suspension, enabling adjustment without modifying the core locking mechanism. The modular design facilitates easy repositioning or replacement of the fork protector to accommodate different suspension configurations.
3Ease of manufacture
If the lockout device uses a simple design, then the ease of manufacture is improved, but the reliability decreases due to limited adjustment options
Solution Approach 1:
The catch hook is designed with multiple functional surfaces: an engagement surface for locking, a release surface for unlocking, and positioning features for different suspension configurations. This multi-functional design allows a single simple component to serve multiple purposes across different mounting scenarios, maintaining reliability without increasing manufacturing complexity.
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 system provides an automatic, reliable, and adjustable suspension lockout solution that simplifies operation and adapts to different suspension-to-protection distances, enhancing usability and reliability for vehicles with telescopic fork suspension.
Implementation Method 1
a first elastic return means configured to be urged in compression by the movement of the lockout finger from the retracted position to the lockout position
Implementation Method 2
a second elastic return means for returning the holding member to the release position
Data Source
AI summary
A suspension lockout system suitable for use on a vehicle includes a telescopic fork suspension and at least one fork protector, including a first assembly having a catch hook, and a second assembly including a locking pin and a stationary support. The second assembly also includes a first elastic return assembly configured to be subjected to compression by the movement of the locking pin and a holding member which is translationally movable relative to the locking pin, since a second elastic return assembly of the holding member is provided, and in that the catch hook has a ramp.