Collapsible Stackable Storage Cart with Scissor Lift Mechanism
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Solution Overview
Problem
Existing storage solutions for sports equipment, such as balls, are often limited by immobility and flimsiness, making them impractical for frequent access in remote locations, and lack the ability to be stacked efficiently for space-saving purposes.
Innovation Solution
A collapsible and stackable cart with a wheeled base, scissor extension apparatus, and actuation mechanism that allows the cart to be raised and lowered, enabling it to hold multiple items like volleyballs and be stacked with other carts while remaining mobile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If storage containers are stacked to save space, then storage density is improved, but accessibility to stored items deteriorates
Solution Approach 1:
The system divides storage into multiple independent cart units, each accessible individually. Multiple carts can be stacked vertically to increase storage density while each cart remains independently accessible through its own base and receptacle, resolving the contradiction between space efficiency and accessibility.
Solution Approach 2:
The invention transitions from traditional horizontal stacking to vertical stacking of carts. By arranging carts in a vertical dimension with interlocking bases, the system achieves higher storage density while maintaining accessibility through the mobile base mechanism that allows individual cart access.
2Volume of moving object
If collapsible bins are used to save space, then storage compactness is improved, but structural strength and mobility deteriorate
Solution Approach 1:
The cart employs a dynamic scissor-like base mechanism that can collapse to a compact configuration for storage and extend to a stable, strong configuration for use. The movable base with interlocking members provides structural strength when deployed while collapsing to minimal volume for compact storage.
Solution Approach 2:
The collapsible base members nest within each other when collapsed, achieving compact storage volume. When extended, the same members form a stable supporting structure, providing both compactness and structural strength as required.
3Volume of moving object
If collapsible bins are used to save space, then storage compactness is improved, but mobility deteriorates
Solution Approach 1:
The base mechanism is designed to be mobile when extended and compact when collapsed. The movable base with wheels or casters provides mobility during use, while the same base collapses to a compact form for easy storage and transport, maintaining both mobility and compactness.
Solution Approach 2:
The modular cart design with independent mobile bases allows each cart to be easily moved individually. The segmented structure enables compact stacking for storage while maintaining the mobility of individual units when needed.
4Device complexity
If fixed height receptacles are used, then structural simplicity is improved, but adaptability to different storage needs deteriorates
Solution Approach 1:
The receptacle height is made adjustable through a dynamic mechanism that allows the receptacle to move relative to the base. This provides adaptability for different storage needs while maintaining relatively simple structural components that can be easily adjusted.
Solution Approach 2:
The system allows change in the height parameter of the receptacle to adapt to different storage requirements. The adjustable height mechanism enables variation in vertical dimension while maintaining structural simplicity through straightforward adjustment components.
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 strong, durable, and mobile storage system that allows convenient access to items, efficiently utilizes space by stacking, and maintains item security in a collapsed configuration.
Implementation Method 1
a scissor extension apparatus attached to the wheeled base... the scissor extension includes two cross members that are rotatably attached to the wheeled base... each of the two first-mentioned cross members are rotatably attached to one of the two other cross members
Implementation Method 2
an actuation mechanism governing the height of the receptacle... an actuation lever having an actuation portion in cooperating engagement with the fulcrum member
Implementation Method 3
a notched (or multi-notched) member associated with the wheeled base... each of the two other cross members may be slidably attached to a notched (or multi-notched) member associated with the wheeled base
Data Source
AI summary
A stackable cart for storing items when in a collapsed configuration, including a wheeled base, an elevation means such as a scissor extension apparatus attached to the wheeled base, a basket frame attached to the scissor extension apparatus, and an actuation mechanism governing the height of the basket in a raised configuration of the cart.