Collapsible Chair-Wheelbarrow Frame for Easier Load Transport
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Solution Overview
Problem
Existing solutions for outdoor recreational events, such as picnics and sports events, face challenges in efficiently transporting heavy or bulky items like chairs and food, as they require manual carrying and are laborious, especially for single individuals.
Innovation Solution
A compact, portable, and collapsible dual-purpose device that can convert between a chair and a wheelbarrow, utilizing a flexible load-bearing material and a single wheel for support, allowing easy conversion between orientations for carrying people or objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If items are carried by hand to outdoor events, then no special equipment is needed, but it is laborious and time consuming
Solution Approach 1:
The device combines multiple functions into a single unit: it can be used as a wheelbarrow for transporting items, as a chair for resting, and as a carrying device. This multi-functionality eliminates the need for separate tools for each task, directly addressing the contradiction by providing an all-in-one solution that reduces both time and effort for transportation tasks.
Solution Approach 2:
The device features a collapsible frame that can be transformed between different configurations (wheelbarrow mode, chair mode, collapsed storage mode). This dynamic structure allows the device to adapt to different operational needs, making it efficient for transportation when needed and compact for storage when not in use, thereby reducing time loss.
2Ease of operation
If a collapsible chair is used, then carrying is easier, but it cannot transport heavy or bulky items
Solution Approach 1:
The device is designed to perform multiple functions: it can be configured as a chair for personal use and as a wheelbarrow for transporting heavy or bulky items. This dual functionality directly resolves the contradiction by providing both ease of carrying (when folded) and the capability to transport items (when configured as wheelbarrow).
Solution Approach 2:
The collapsible frame structure allows the device to dynamically change between chair configuration and wheelbarrow configuration. This dynamic transformation enables the device to adapt to different needs - serving as a lightweight chair when personal seating is needed, and as a capacity-equipped wheelbarrow when item transportation is required.
3Productivity
If a wheelbarrow is used to transport items, then transportation is efficient, but it cannot serve as a chair
Solution Approach 1:
The device is explicitly designed as a multi-functional unit that can operate as a wheelbarrow for efficient item transportation and as a chair for personal seating. This universality directly resolves the contradiction by enabling the same device to fulfill both transportation and seating functions without requiring separate equipment.
Solution Approach 2:
The device features a dynamic, reconfigurable frame that can be transformed between wheelbarrow mode (for efficient transportation) and chair mode (for seating). This dynamic capability allows the device to switch between high-productivity transportation configuration and comfortable seating configuration as needed.
4Adaptability or versatility
If multiple separate devices are used for different purposes, then each device can be optimized, but the overall system becomes more complex
Solution Approach 1:
The invention merges the functions of a wheelbarrow, chair, and carrying device into a single integrated unit. This consolidation directly addresses the contradiction by reducing the number of separate devices to manage while maintaining the specialized capabilities of each function through the device's reconfigurable design.
Solution Approach 2:
By designing a universal device that can perform multiple specialized functions (transportation, seating, carrying), the invention eliminates the need for multiple separate specialized devices. This multi-functionality directly resolves the contradiction by reducing system complexity while preserving adaptability across different use cases.
Data Source
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AI summary
A convertible dual purpose device (10) has a frame (12) movable between an expanded configuration and a collapsed configuration, supporting means (28) connected to the frame for supporting one or more objects, handle means (14, 16, 18, 20) at a first end of the frame, and wheel means (26) at a second end of the frame. When the frame is in the expanded configuration, the device can be positioned in a first orientation whereby the supporting means is adapted to serve as a load support for a chair, or in a second orientation whereby the supporting means is adapted to serve as a load support for a wheel barrow. When the frame is in the collapsed configuration, the device can be stored in a carry bag (42).