Cam-Lock Quick-Release Interconnect for Removable Bike Accessories
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Solution Overview
Problem
Existing methods for connecting accessories, such as baskets, to bicycle handlebars are not easily removable, requiring unscrewing of fasteners, which is time-consuming and inconvenient for quick detachment.
Innovation Solution
A quick-release interconnect system featuring a mount member with a cleat and top hanger seat, a clamp member, and a spring-biased lower jaw that can be secured using a cam-lock lever, allowing for easy attachment and detachment with one hand, even when the interconnect is not fully secured.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If threaded fasteners are used to secure the clamp, then the connection is strong and reliable, but the removal process becomes time-consuming and complex
Solution Approach 1:
The fastening system is divided into separate functional components: a clamp member for securing, a cam-lock lever for quick release, and a spring-biased lower jaw for maintaining tension. This segmentation allows the removal function to be decoupled from the securing function, enabling quick release without compromising connection reliability during use.
Solution Approach 2:
The system transitions from a static threaded fastener to a dynamic cam-lock mechanism that can rapidly transition between locked and unlocked states. The spring-biased lower jaw provides continuous dynamic adjustment to maintain optimal clamping force while allowing quick release when the cam lever is actuated.
2Ease of operation
If a cam-lock lever is used for quick release, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The cam-lock lever is integrated directly into the lower jaw assembly, merging the release mechanism with the clamping component. This integration reduces the number of separate parts and simplifies the overall structure while maintaining quick-release functionality. The spring bias is also incorporated into the same assembly, further consolidating the mechanism.
Solution Approach 2:
The spring-biased lower jaw automatically maintains clamping force and returns to the open position when the cam lever is released, eliminating the need for additional actuators or complex control mechanisms. The system uses the inherent mechanical properties of the spring to provide both the closing force and the return action, simplifying the overall design.
3Ease of operation
If the lower jaw is spring-biased open, then the ease of operation is improved, but the force required to secure the connection increases
Solution Approach 1:
The spring provides periodic force throughout the operation cycle: it biases the jaw open during approach, maintains tension during the locked state, and provides the return force during release. This periodic application of spring force optimizes the operation at each stage without requiring excessive force during the securing action, as the cam lever provides mechanical advantage during the critical locking moment.
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
Enables quick and easy attachment and detachment of objects to bicycle handlebars, allowing for convenient removal and retention of accessories without the need for unscrewing, enhancing usability and accessibility.
Implementation Method 1
A lower jaw is spring-biased into an open condition that can be secured closed by a cam-lock lever
Data Source
AI summary
The quick release interconnect includes a mount member that includes a cleat and a top hanger seat. An attachment member includes a lower jaw that is spring-biased into an open condition that can be secured closed by a cam-lock lever. An upper jaw hanger is also provided to permit the attachment member to be hung on the top hanger seat while the attachment member and object are oriented in place. The upper jaw hanger member is located over the top hanger seat and then the attachment member is rotated in place so the lower jaw is aligned with the cleat. The cam lock lever is rotated to clamp the lower jaw into communication with the cleat portion of the mount member to secure the attachment member securely to the mount member. To release the attachment member, the process is reversed.