Trolley Shelf Hook Orientation Change for Simplified Pool Replacement
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Solution Overview
Problem
The complex and costly process of replacing a large pool of trolleys with tens of millions of shelves and posts requires simplification of logistics and prevents the use of old shelves in the new pool.
Innovation Solution
Modify the trolley by removing shelves with hooks extending in longitudinal direction, turning the posts a quarter turn, and replacing them with shelves having hooks extending in transverse direction, allowing only the new shelves to be used in the new pool, with the option to reuse existing posts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing pool of trolleys with tens of millions of shelves is replaced with a new pool, then the logistics system can be upgraded with innovations, but the replacement process becomes extremely complex and costly
Solution Approach 1:
The system is divided into two distinct segments: old trolleys with longitudinal hooks and new trolleys with transverse hooks. This segmentation allows independent management and replacement of each segment without affecting the other, simplifying the transition process while enabling innovation in the new pool.
Solution Approach 2:
The hook orientation is changed from longitudinal to transverse, creating an asymmetric difference between old and new trolleys. This asymmetry serves as a clear identifier that prevents mixing of old and new shelves, simplifying logistics management during and after replacement while allowing the new pool to implement innovations.
2Ease of operation
If old shelves are allowed to remain in the pool during replacement, then logistics are simpler, but old shelves can be mistakenly used in the new pool compromising system integrity
Solution Approach 1:
The system preemptively prevents the harmful action of old shelves being used in the new pool by designing incompatible hook orientations. The transverse hooks on new trolleys cannot accommodate longitudinal shelves, automatically blocking the erroneous action before it can compromise system integrity.
Solution Approach 2:
The hook orientation acts as an intermediary mechanism that mediates between the old and new pool systems. It provides a physical interface that allows old trolleys to continue using longitudinal shelves while new trolleys use transverse shelves, preventing mixing without requiring complex tracking or identification systems.
3Adaptability or versatility
If all trolleys are replaced simultaneously, then the new pool can be fully utilized, but the cost and logistics become prohibitively complex
Solution Approach 1:
The replacement process is made dynamic and flexible rather than static and rigid. New trolleys with transverse hooks can be introduced at any time and mixed with old trolleys in the pool, allowing gradual replacement without requiring simultaneous replacement of all trolleys, thus reducing complexity and cost.
Solution Approach 2:
The new trolley design with transverse hooks is made universal and compatible with the existing pool infrastructure. It can coexist with old trolleys and be used in the same pool system, allowing incremental adoption rather than requiring complete replacement, thereby reducing the quantity of trolleys that need to be replaced at once.
Data Source
Figure 1~2
Figure 3~7
AI summary
The invention relates to a trolley (1) comprising a plurality of rectangular and elongated shelves (10) comprising a plate (11) providing a surface (12) for carrying goods, such as potted plants and flowers, and hooks (20), and a plurality of posts provided with a series of openings (6), e.g. slots, receiving the hooks (20). The hooks (20) extend in lateral direction and a series of openings (6) is provided in precisely one side of the posts (5) or in precisely two and opposite sides of the posts (5).