Cart Hinge Design for Pivoting Door Stability and Glass Transport
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Solution Overview
Problem
There is a need for carts that can safely and efficiently transport different types, sizes, and shapes of automotive glass in automobile assembly factories, as existing carts do not adequately address the varied requirements for secure and efficient handling of diverse glass items.
Innovation Solution
The development of carts with a base, end walls, and a sidewall that define an interior space, featuring pivotable doors, adjustable arms, and a movable shelf, which allows for secure positioning and handling of various glass sizes, along with features like hinges that prevent over-pivoting and arms that support and separate glass items, ensuring safe transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a door is made pivotable to allow easy access to the cart interior, then ease of operation is improved, but the risk of over-pivoting causing damage or instability increases
Solution Approach 1:
The hinge body is designed with integrated stop members positioned in advance to automatically prevent over-pivoting. The stop members are pre-positioned at specific angles relative to the door and cart opening, creating built-in mechanical limits that activate before the door can be damaged or cause instability.
2Reliability
If the cart is designed with fixed structure for stability, then reliability is improved, but adaptability to different glass sizes and shapes deteriorates
Solution Approach 1:
The cart incorporates movable components including pivotable doors with controlled range of motion, adjustable arms that can slide and pivot, and a movable shelf system. These dynamic elements allow the cart structure to adapt its configuration based on the size and shape of glass items while maintaining stability through defined movement limits and support mechanisms.
Solution Approach 2:
The cart is divided into independent functional modules: the base structure provides stability, while separate movable components (doors, arms, shelf) can be independently adjusted. This segmentation allows each component to perform its specific function optimally while contributing to the overall adaptability of the cart system.
3Ease of operation
If the hinge allows full pivoting range for easy door opening, then ease of operation is improved, but the risk of door damage from over-pivoting increases
Solution Approach 1:
The hinge body incorporates stop members that apply preliminary counter-action to prevent harmful over-pivoting. The stop members are positioned to engage the door or hinge brackets before the door can be pivoted to a damaging angle, automatically applying a restraining force that counteracts excessive movement in both directions.
Data Source
AI summary
A cart for transporting objects has a base and a first end wall and an opposite second end wall extending from the base. A sidewall extends from the base and between the end walls such that the base, the first end wall, the second end wall, and the sidewall define an interior space of the cart. A hinge couples a door to the first end wall such that the door can be pivoted into different positions. One or more arms extend into the interior space to support and retain objects therein.