Golf Push Cart Folding Mechanism via Linkage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional golf push carts occupy a large area when folded due to vertical rear wheels, making them inconvenient for carrying and storage.
Innovation Solution
A golf push cart design featuring a connection rod linkage system that allows the upper and lower frames, along with the rear wheels, to be folded in one step by rotating the frames, causing the rear wheels to flatten parallel to the lower frame, reducing occupied space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the rear wheels are kept vertical to the ground when folded, then the structural simplicity is maintained, but the occupied space increases making carrying and storage inconvenient
Solution Approach 1:
The rear wheel assembly is designed with dynamic folding capability through the connection rod linkage mechanism. The rear wheel can transition from a vertical position (when in use) to a flattened position parallel to the lower frame (when folded), enabling the cart to achieve a compact folded state while maintaining structural integrity through the movable connection mechanism.
Solution Approach 2:
The rear wheel assembly is nested within the frame structure during folding. When folded, the rear wheel flattens and aligns parallel to the lower frame, effectively nesting the wheel assembly within the overall cart footprint, thereby minimizing the occupied space for carrying and storage.
2Loss of time
If the upper frame and lower frame are folded separately, then the folding process is simple, but the folding time and steps increase
Solution Approach 1:
The connection rod linkage mechanism merges the folding actions of the upper frame, lower frame, and rear wheel assembly into a single coordinated motion. When the upper frame rotates, it drives the connection rod linkage which simultaneously folds the lower frame and flattens the rear wheel assembly, achieving multi-component folding in one step rather than requiring separate folding operations.
Solution Approach 2:
The connection rod linkage acts as an intermediary mechanism that transmits and coordinates the folding motion from the upper frame to the lower frame and rear wheel assembly. This intermediary mechanism ensures that all components fold in a synchronized manner, reducing the number of steps and time required for folding while maintaining controlled motion throughout the system.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A push cart, including: a frame, a rear wheel assembly, a front wheel assembly, a connection rod linkage. The frame includes an upper frame and a lower frame, and the upper frame is disposed on the lower frame. The rear wheel assembly is movably disposed on the lower frame or the upper frame. The front wheel assembly is disposed on the lower frame. The frame is connected to the rear wheel assembly via the connection rod linkage. The rotation of the upper frame or the lower frame drives the connection rod linkage to flatten the rear wheel assembly with the upper frame or the lower frame, or to unfold the rear wheel assembly.