Integrated Wheel Snap Lock for Tool-Free Axle Retention
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Solution Overview
Problem
Existing wheel assemblies often require tools for assembly and disassembly, leading to increased complexity, time, and inventory requirements, as well as a higher risk of part failure due to multiple components.
Innovation Solution
A snap lock device comprising a hubcap with two clips, each having a spring and an actuator, which allows for tool-less assembly and disassembly of wheels onto and from an axle by using engagement members that fit into a circumferential groove, reducing the number of parts and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wheel assemblies use multiple parts for secure attachment, then reliability of attachment is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple separate components (hubcap, clips, springs, engagement members) into a single integrated snap lock device that forms one integral piece. This merging reduces the number of separate parts while maintaining the secure attachment function through the integrated engagement members that lock into the circumferential groove of the axle.
Solution Approach 2:
The snap lock device is segmented into functional components (hubcap, clips with springs, engagement members, actuators) that are integrated into one piece but can independently perform specific functions. The engagement members can be moved independently by actuators to allow tool-less assembly and disassembly while maintaining overall structural integrity.
2Reliability
If wheel assemblies require tools for assembly, then secure attachment is achieved, but ease of operation deteriorates
Solution Approach 1:
The snap lock device enables tool-less assembly and disassembly through user-operable actuators that directly move the engagement members. The springs provide automatic engagement when the wheel is mounted on the axle, and the actuators allow easy release by moving the engagement members out of the circumferential groove, eliminating the need for external tools.
Solution Approach 2:
The engagement members are designed to be movable rather than fixed, allowing them to be engaged and disengaged easily. The springs provide dynamic engagement force that automatically secures the wheel when mounted, while the actuators enable dynamic release by moving the engagement members out of position, facilitating easy operation without tools.
3Adaptability or versatility
If multiple parts are used in snap lock assemblies, then adaptability is improved, but manufacturing complexity increases
Solution Approach 1:
The patent integrates multiple functional components into a single molded or machined piece, combining the hubcap, clips, springs, engagement members, and actuators into one integral structure. This simplifies manufacturing processes such as injection molding or CNC machining while maintaining the adaptability and flexibility of having multiple functional elements.
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 easy, tool-free installation and removal of wheels, reducing assembly time and inventory complexity while ensuring secure attachment and detachment without risking part failure.
Implementation Method 1
Both clips can have a spring coupled to the lower surface of the hubcap... a portion of the spring may be located below the ramp and the spring may urge the engagement member into the bore
Implementation Method 2
The engagement members can be biased toward the bore to be positioned in the circumferential groove
Data Source
AI summary
A snap lock device for securing a wheel assembly to an axle is provided. The snap lock device may be formed from one integral piece. The snap lock device may include a hubcap and a first and second clip extending from the hubcap. The first and second clips may include a spring, an engagement member, and an actuator. The spring may be directly coupled to the hubcap. The snap lock device may be installed in the wheel assembly by inserting the cap assembly in the wheel assembly such that the first and second clip are placed in two apertures of a wheel and the springs bias the engagement members toward a center of a bore defined in the wheel for receiving the axle. The snap lock device can allow for tool-less installation and removal of the axle.