Foldable Golf Trolley Retractable Stabilizer Gear Mechanism
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Solution Overview
Problem
Foldable golf trolleys with traditional rear stabilizer wheels protrude, increasing size for storage and transit, and there's a risk of the stabilizer being forgotten during reassembly, leading to instability issues.
Innovation Solution
A foldable golf trolley design with a retractable stabilizer wheel system, where the stabilizer arm is coupled to the main support through gears, allowing automatic deployment and retraction, reducing overall size and ensuring the stabilizer is always engaged for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stabilizer wheel is provided behind the main drive wheels to prevent tipping over, then the stability of the trolley is improved, but the size of the trolley increases making it harder to store and transport
Solution Approach 1:
The stabilizer arm is made movable rather than fixed, allowing it to be positioned in different configurations. The arm can be extended to provide stability during use and retracted to minimize size during storage and transport, resolving the contradiction between stability and compactness.
Solution Approach 2:
The stabilizer function is separated from the main trolley structure through a独立的 stabilizer arm that can be deployed or stowed. This segmentation allows the stabilizer to be present when needed but absent from the compact form when not needed, balancing stability requirements with storage convenience.
2Volume of moving object
If the stabilizer arm is made removable for storage, then the size of the trolley is reduced, but the risk of forgetting to reattach it increases leading to instability
Solution Approach 1:
The stabilizer arm is designed to automatically deploy and retract based on the trolley's operational state. When the trolley is folded for storage, the stabilizer arm automatically retracts into a compact position. When the trolley is unfolded for use, the stabilizer arm automatically extends to provide stability, eliminating the need for manual attachment and ensuring reliability.
Solution Approach 2:
The stabilizer arm is pre-positioned in a retracted state within the trolley structure, ready to automatically deploy when needed. This preliminary positioning ensures that the stabilizer is always available and properly installed without requiring user intervention, preventing the risk of forgetting to attach it.
3Reliability
If the stabilizer arm is coupled to the main support through gears for automatic deployment, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The stabilizer arm's deployment mechanism is merged with the main support structure through gear coupling. This integration ensures that when the main support is positioned, the stabilizer arm automatically deploys in conjunction, achieving reliable automatic stabilization without requiring separate complex control systems.
Solution Approach 2:
Gears serve as an intermediary mechanical element that transfers motion from the main support to the stabilizer arm. This intermediary mechanism provides simple, reliable automatic coupling without requiring complex electronic controls or additional actuators, balancing reliability with acceptable complexity.
Data Source
AI summary
A foldable golf trolley comprising a chassis; at least one electrically powered rear drive wheel; a wheel support arm mounted to the front of the chassis supporting a front wheel; a stabilizer arm mounted to the rear of the chassis supporting a stabilizer wheel; a main support mounted to the chassis and a handle mounted to the main support; wherein the main support, the wheel support arm and the stabilizer arm are rotatably mounted to the chassis and movable between an operative configuration and a folded configuration; and gears connecting the stabilizer arm and main support, wherein rotation of the main support between the operative configuration and the folded configuration cause rotation of the stabilizer arm between the operative configuration and the folded configuration.