Vending Cart Sliding Roof Mechanism for Space Adaptation
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Solution Overview
Problem
Sales trolleys are typically designed for the shortest stand length, limiting the utilization of available space at varying market locations and requiring complex assembly and support systems.
Innovation Solution
A sales trolley design with sliding elements that allow the total roof area length to be adjusted steplessly, eliminating the need for supports and joints, and incorporating telescopic roof elements and guide rails for easy assembly and disassembly, enabling full utilization of space at different locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sales trolley is designed for the shortest stand length, then it can be used at all locations, but the available space at longer stands cannot be fully utilized
Solution Approach 1:
The sales trolley incorporates sliding elements that can be moved along guide rails to dynamically adjust the length of the total roof area. This allows the trolley to adapt its configuration from a compact state for short stands to an extended state for longer stands, fully utilizing available space at each location.
Solution Approach 2:
The roof structure is divided into a stationary roof element and one or more sliding roof elements that can be independently positioned. This segmentation enables flexible adjustment of the total roof area length to match different stand lengths without requiring a completely different trolley design.
2Adaptability or versatility
If the sales trolley is designed with extendable roof structures, then it can adapt to longer stands, but the assembly and disassembly process becomes more complex
Solution Approach 1:
The sliding elements are designed to move along guide rails with simple locking mechanisms, allowing quick extension and retraction without complex assembly procedures. The dynamic nature of the system enables operators to adjust the roof length by simply sliding components into position rather than assembling multiple parts.
3Stability of the object's composition
If the sales trolley uses fixed roof structures, then it maintains structural integrity, but it cannot adapt to varying location requirements
Solution Approach 1:
The connection between the sliding roof elements and the stationary roof element is designed to maintain structural integrity during operation. The sliding elements engage with guide rails that provide stable support, ensuring the roof structure remains rigid and reliable whether in a compact or extended configuration.
4Adaptability or versatility
If the sales trolley includes sliding elements for length adjustment, then it can adapt to different locations, but additional guide rail systems are required
Solution Approach 1:
The guide rails serve multiple functions: they guide the sliding elements during extension and retraction, provide structural support for the extended roof sections, and incorporate stopping positions that define the minimum and maximum lengths of the total roof area. This multi-functionality reduces the need for additional separate components.
Data Source
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AI summary
The vending cart i.e. vending trailer (10), has a fixed roof element (12), and side walls (13, 14) swivelably supported at a longitudinal side of the roof element. An entire roof surface is formed from a roof surface of the fixed roof element, swivelable side walls and roof corner parts (17) in a vending position of the cart. A moving element (29) is attached to the fixed roof element, which forms a guidance for the moving element such that the moving element is movable in a direction of longitudinal edges of the fixed roof element.