Collapsible Mobile Cart With Removable Liner
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Solution Overview
Problem
Existing collapsible carts lack an efficient folding mechanism and easily removable and replaceable cover or liner, making them inconvenient for transporting equipment or objects beyond the vehicle's travel area.
Innovation Solution
A mobile cart design featuring a framework assembly that transitions between extended and collapsed configurations, with a removable liner secured by retaining members, allowing for easy detachment and reattachment, and incorporating articulating joints and adjustable components for versatile shape configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a collapsible cart design is implemented, then the cart can be folded for easy transportation and storage, but the folding mechanism becomes complex and difficult to operate
Solution Approach 1:
The cart is divided into modular components including collapsible sides with articulating joints, a removable liner, and separate wheel assemblies. Each side can be independently collapsed or adjusted, allowing the cart to transition from an extended configuration to a collapsed state for compact storage while maintaining operational simplicity through independent module manipulation.
Solution Approach 2:
The cart incorporates dynamic elements such as articulating joints at the corners that enable smooth transitions between extended and collapsed configurations. The sides are designed to pivot and fold along predetermined paths, providing controlled motion that simplifies the folding operation while achieving compact volume reduction.
2Ease of operation
If a removable liner is added for easy cleaning and replacement, then the liner can be detached and reattached, but the securing mechanism increases device complexity
Solution Approach 1:
The liner is designed as a separate removable component from the cart framework. Retaining members are positioned at the corners to secure the liner when attached, but allow for easy removal. This segmentation enables the liner to be detached and reattached without requiring complex fastening systems, maintaining simplicity while providing ease of operation for cleaning or replacement.
3Volume of moving object
If the cart is designed to collapse to a compact size, then storage space is reduced, but structural integrity may be compromised during folding
Solution Approach 1:
The articulating joints are designed with controlled movement paths that maintain structural integrity during the collapsing process. The joints provide predetermined rotation axes and movement constraints that ensure forces are distributed appropriately during folding, preventing structural failure while achieving compact storage volume. The dynamic design allows the cart to transition smoothly between configurations without compromising strength.
Data Source
AI summary
Disclosed is a mobile cart that may include, in some instances, a framework assembly comprising an extended configuration and a collapsed configuration, at least two wheels attached to the framework assembly, and a removable liner secured to the framework assembly in a removable fashion. The removable liner may include a collapsible floor, at least three collapsible sides extending vertically from the collapsible floor, and at least one retaining member. The mobile cart may include at least three corners and the at least one retaining member may be configured such that the removable liner can be selectively removed from and secured to the framework assembly.