Foldable Cart Assembly for Compact Floor Grinder Transport
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Solution Overview
Problem
Floor grinding machines are cumbersome and difficult to transport and store due to their heavy, bulky design, requiring large vehicles for transportation and significant storage space.
Innovation Solution
A foldable cart system that can be removably attached to the grinding or polishing machine, featuring a mobility assembly with wheels and a handle assembly connected via a folding joint, allowing the machine to be easily disassembled and stored in a compact form.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the floor grinding machine is designed as a fully assembled apparatus with handle assembly, then the machine can be controlled during operation, but it becomes heavy and difficult to transport to other floors or locations
Solution Approach 1:
The floor grinding machine is divided into separate modular components: a working assembly (grinding head with motor) and a foldable cart assembly (handle assembly with wheels). These can be detached from each other, allowing the heavy working assembly to be transported separately or left at the destination, while the operator transports only the lighter cart assembly. This segmentation directly resolves the contradiction by enabling machine control through the cart assembly while reducing transport weight.
Solution Approach 2:
The handle assembly incorporates a foldable cart structure with movable components including foldable handlebars and collapsible frame sections. These dynamic elements allow the cart assembly to be compacted for transport and expanded for operation, enabling easy transportation while maintaining full operational functionality when deployed.
2Productivity
If the floor grinding machine is designed as a fully assembled apparatus, then it can function complete, but it takes up relatively large amount of storage space
Solution Approach 1:
By separating the working assembly from the cart assembly, the system allows the bulky cart structure to be stored separately from the compact grinding mechanism. The working assembly occupies minimal storage space, while the cart assembly can be folded flat or disassembled into compact components for storage in small spaces or vehicles.
Solution Approach 2:
The foldable cart assembly features collapsible frame members and foldable handlebars that can be compacted into a small volume for storage. When deployed, these dynamic elements expand to provide full operational functionality, effectively resolving the contradiction between complete machine functionality and minimal storage space requirements.
3Productivity
If the floor grinding machine is designed as a fully assembled apparatus, then it can be operated completely, but it requires a lorry or a very big car for transportation
Solution Approach 1:
The working assembly can be transported independently on small dollies or hand trucks, while the cart assembly is designed to fold into a compact configuration that fits in ordinary car trunks or cargo areas. This segmentation eliminates the need for large vehicles, as each component can be transported using standard personal vehicles.
Solution Approach 2:
The foldable cart assembly incorporates collapsible frame sections and foldable handlebars that reduce the overall volume when transported. This dynamic compaction allows the cart to be stored in ordinary cars without requiring specialized large-vehicle transport, while maintaining full operational dimensions when deployed.
4Volume of stationary object
If the handle assembly is made foldable, then the cart can take up less space and give better access, but the structure becomes more complex
Solution Approach 1:
The foldable handle assembly is divided into discrete modular segments connected by simple folding joints. Each segment can be independently folded or detached, simplifying the overall structure compared to a monolithic rigid assembly. This segmentation enables compact folding while maintaining structural integrity through standardized connection points.
Data Source
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AI summary
A grinding or polishing machine (10) may include a working assembly (20) and a foldable cart (30). The working assembly (20) may include a grinding head (26) rotatable to engage a surface for grinding or polishing. The foldable cart (30) may be releasably coupled to the working assembly (20). The foldable cart (30) may include a mobility assembly (100) including at least one wheel (102) and a frame (104), and a handle assembly (110) operably coupled to the frame (104). The handle assembly (110) may include a first frame portion (112) and a second frame portion (114). The first frame portion (112) and the second frame portion (114) may be operably coupled to each other via a folding joint (120).