Foldable Transport Trolley with Pivot Frame and Ladder Function
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Solution Overview
Problem
Existing transportation means for construction sites are insufficiently practical and flexible for carrying ladders, tools, and consumables, often resulting in items being scattered on the dusty and dirty floor, and require a large number of unnecessary items, with no solution for maintaining order or reducing the number of items transported.
Innovation Solution
A multi-purpose transport trolley with a frame unit, gripping members, wheels, and fitting members that can be folded out to form a ladder or workbench, allowing for detachable attachment of boxes and tools, providing a stable and compact solution that minimizes the need for separate ladders and workbenches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional transportation means are used to carry tools and equipment to construction sites, then items can be transported, but items become scattered on the dusty and dirty floor and cannot be kept orderly
Solution Approach 1:
The patent combines multiple functions (transportation, storage, and item organization) into a single integrated trolley system. The frame unit with attached boxes and containers keeps all items together on the trolley platform, preventing them from scattering on the floor while maintaining order through dedicated storage compartments.
Solution Approach 2:
The trolley serves multiple functions simultaneously: it transports tools and equipment, provides organized storage through attached boxes, and acts as a stable working platform. This multi-functionality eliminates the need for separate items for each purpose, reducing the total number of items needed at the construction site.
2Adaptability or versatility
If multiple separate items (ladder, workbench, tools, boxes) are transported to construction sites, then all needed functions are available, but the number of items becomes large and unnecessary
Solution Approach 1:
The trolley is designed as a multi-functional platform that combines transportation, storage, and work surface functions. By integrating these functions into one device, the patent eliminates the need for separate ladders, workbenches, and toolboxes, thereby reducing the total number of items while maintaining full functional versatility.
Solution Approach 2:
The patent merges the functions of a ladder, workbench, and tool storage into a single trolley system. The frame structure provides structural support and stability, while attached boxes provide storage, and the platform surface provides a work area, all integrated into one transportable unit.
3Ease of operation
If the trolley is designed to be compact for transport, then it is easy to move, but it may lack stability when stationary
Solution Approach 1:
The trolley features a pivot device that allows the frame parts to transition between a close-together position for compact transport and a folded-out position for stable stationary use. This dynamic mechanism enables the trolley to adapt its configuration based on whether it is being transported or is stationary, optimizing both mobility and stability.
4Adaptability or versatility
If the frame parts are folded out to provide stability, then the trolley can serve as a ladder or workbench, but the structure becomes more complex
Solution Approach 1:
The frame unit is divided into separate frame parts that can be pivoted relative to each other. This segmentation allows the structure to transform from a compact transport configuration to an expanded stable configuration, enabling ladder and workbench functions without requiring a completely separate structure.
Data Source
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AI summary
The invention relates to a multi-purpose transport trolley, comprising frame parts (100, 200) having wheels (206) attached to the frame parts (100, 200) at a lower end, gripping members (202, 203) at an upper end and a plurality of fitting members (103) at different locations along a mid portion of the frame part (100, 200), which fitting members (103) are arranged to releasably carry function units (300), wherein said frame parts (100, 200) comprise a front frame part (100) and a rear frame part (200) which at the top are joined by a pivot device (201) having a pivoting axis (CP) arranged to enable the frame parts (100, 200) to be either in a close together positioned or in a folded-out position, wherein the frame parts (100, 200) form a ladder in the folded -out position, by means of having at least one step (205) attached on one of the frame parts and a lower end (207) of the rear frame part (200) that supports said wheels (206) acts as a support in the folded-out position, wherein said lower end (207) of the rear frame part (200) is positioned at a larger distance (L) away from the pivoting axis (CP) of the pivoting device (201) than the distance (1) between the pivoting axis (CP) and the most distant wheel part, wherein each frame part (100, 200) of the trolley in a folded -out position is positioned to form a substantially equal acute angle (α) in relation to the vertical and wherein said angle (α) is substantially the same for the front frame part (100) also in folded together mode when supported by said wheels (206).