Motorized Collapsible Cart With Telescoping Folding Structure
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Solution Overview
Problem
Existing collapsible carts lack efficient mechanisms for transitioning between expanded and collapsed positions, and often require complex assembly or disassembly processes, limiting their convenience and versatility.
Innovation Solution
A collapsible cart design featuring rotatable joints, slidable members, and a telescoping handle mechanism that allows for easy conversion between expanded and collapsed positions, along with optional motorization for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a collapsible cart is designed to transition between expanded and collapsed positions, then storage convenience is improved, but the complexity of the transition mechanism increases
Solution Approach 1:
The cart structure is divided into multiple segments including collapsible side walls with panel joints, telescoping handle sections, and modular base components. Each segment can independently collapse or extend, enabling compact storage while maintaining structural integrity during use. The segmentation allows simple hinge joints and latch mechanisms rather than complex overall folding mechanisms.
Solution Approach 2:
The handle assembly features a telescoping mechanism where inner tubes nest within outer tubes, allowing the handle to compact to minimal length for storage while extending to full length for use. The side walls also collapse inward in a nested manner, with panels folding against each other and the base, creating a compact nested configuration that minimizes storage volume without requiring complex mechanism.
2Strength
If the cart structure is made robust to accommodate heavy loads, then load capacity is improved, but the weight of the cart increases
Solution Approach 1:
The cart employs local quality by concentrating structural strength only where needed. The base and wheel assemblies use thicker, heavier materials to support the cart's own weight and loaded capacity. The side walls use thinner, lighter materials that are sufficient for their protective function but not for bearing primary structural loads. This localized strengthening approach maximizes load capacity while minimizing overall cart weight.
Solution Approach 2:
The cart features a collapsible design where the structure is pre-configured to fold and collapse automatically when not in use. The hinge joints and latch mechanisms are designed to enable easy collapse without requiring manual disassembly or complex mechanisms. This preliminary design of the collapse mechanism allows the cart to be lightweight yet robust, as the structure is optimized for both its operational strength and its collapsed storage state.
3Volume of moving object
If the cart is designed to collapse compactly for storage, then storage space requirement is improved, but the complexity of assembly and disassembly processes increases
Solution Approach 1:
The cart is designed to be self-servicing in its collapse and assembly operations. The hinge joints and latch mechanisms are configured to allow the cart to collapse and assemble automatically when the user pulls or pushes the handle, without requiring manual manipulation of individual components. The telescoping handle and collapsible side walls work together to self-fold into a compact configuration, reducing the effort and complexity of the assembly and disassembly processes.
Data Source
AI summary
A motorized collapsible cart having a motor and battery and configured to convert from a collapsed position to an expanded position, the cart having opposing side walls and a bottom wall, and, in the expanded position, forming one or more open compartments which may be enclosed by a cover comprising one or more panels.