Carwash Conveyor Pivoting Door Spring Torque Mechanism
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Solution Overview
Problem
Carwash conveyor doors relying on counter weights and stops are prone to breakdowns due to complexity and lack of robustness.
Innovation Solution
A pivoting door mechanism with a top bar, arms, and tensioning units featuring a main pin, spring unit, and rubber inserts that produce counter torque to automatically return to a closed position after a roller passes, eliminating the need for counter weights and stops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If counter weights and stops are used to return the door to closed position, then the door can be returned automatically, but the device becomes complex and prone to breakdowns
Solution Approach 1:
The patent removes counter weights and stops from the door mechanism, extracting the problematic components that caused complexity and reliability issues. The door mechanism is simplified to use only a pivot point and spring, eliminating the need for counter weight assemblies and stop mechanisms while maintaining automatic return functionality.
Solution Approach 2:
The door mechanism serves itself by using the roller's own motion to open the door and the spring's stored energy to automatically return it to the closed position. The system requires no external power source, control systems, or additional actuating mechanisms, making it self-contained and highly reliable.
2Ease of operation
If counter weights and stops are used in the door mechanism, then the door can be returned to closed position, but maintenance requirements increase
Solution Approach 1:
The door mechanism is segmented into simple, independent components: a pivot point for rotation, a spring for energy storage and release, and the door itself. This segmentation allows each component to be easily inspected, replaced, or maintained independently without affecting the entire system.
Solution Approach 2:
The spring is designed as a simple, inexpensive component that can be easily replaced if worn or damaged. The entire mechanism uses basic mechanical elements that are readily available and cost-effective, reducing both maintenance costs and downtime.
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 solution provides a more robust and less complex conveyor door that operates reliably without counter weights or hard stops, ensuring consistent functionality and reduced maintenance.
Implementation Method 1
the spring inserts provide the counter torque when the pivoting door is rotated
Data Source
AI summary
A pivoting door is provided for a carwash vehicle conveyor. The pivoting door does not require counter weights or stops. The pivoting door has a top bar, a pair of arms each with a bottom end and extend from the top bar, and tensioning units. One of the tensioning units is disposed at the bottom end of each of the arms. Each of the tensioning units has a main pin and a spring unit. When a roller pushes the top bar to an open position the tensioning units produce a counter torque for automatically returning the pivoting door to a closed position after the roller passes by.