Folding Luggage Trolley with Maple Glulam Platform
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Solution Overview
Problem
Conventional luggage trolleys are often heavy, bulky, and non-foldable, limiting their portability and ability to carry multiple types of luggage, which compromises traveler comfort during transportation and storage.
Innovation Solution
A foldable trolley with a wooden structure tray, featuring a rectangular maple glulam tray, pivoting wheels with brakes, aluminum tubes, a telescopic handle system, and a detachable pocket bag, designed to support and transport multiple luggage types while meeting airline cabin baggage size and weight requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional trolleys use metal platforms (aluminum, steel, PVC), then structural strength is ensured, but weight and volume increase significantly
Solution Approach 1:
The patent applies composite materials by combining wood (maple or beech) with metal components (aluminum tube frame, steel axles). The wooden platform provides sufficient strength while being lighter than solid metal platforms, achieving a balance between structural integrity and weight reduction. The composite construction uses each material where it excels: wood for the platform surface, metal for the frame and mechanical components.
2Stability of the object's composition
If conventional trolleys are designed with fixed structures, then stability is maintained, but portability and storability deteriorate
Solution Approach 1:
The patent implements dynamics by designing the trolley with a telescopic handle that can extend and retract, and a platform that can be folded. The handle extends to 115cm for use and retracts to fit within the platform when stored. This dynamic structure allows the trolley to adapt between its operational state (stable and functional) and storage state (compact and portable), resolving the contradiction between stability and portability.
3Adaptability or versatility
If conventional trolleys are designed to carry multiple luggage types, then versatility improves, but device complexity increases
Solution Approach 1:
The patent applies universality by designing the trolley with a standardized platform size (38x28cm) and load capacity (30kg) that can accommodate various luggage types including suitcases, backpacks, and carry-on bags. The universal design uses a simple platform surface with rounded corners and a non-slip texture that works with different luggage configurations, avoiding the need for specialized attachments or complex adjustment mechanisms for different luggage types.
4Quantity of substance
If conventional trolleys prioritize load capacity, then luggage support improves, but weight and bulk increase
Solution Approach 1:
The patent applies parameter changes by optimizing the wooden platform dimensions (38cm length, 28cm width, 1.8cm thickness) and material properties to achieve the maximum load capacity of 30kg. The platform's rounded corners with 5mm radius and specific wood thickness provide structural strength for heavy loads while maintaining a lightweight overall design. The aluminum frame and steel axles are selected with precise specifications to support the load without adding excessive weight.
Data Source
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Figure 3
AI summary
The invention relates to a folding luggage trolley with a wooden platform. The lower part of the trolley consists of a rectangular laminated maple platform mounted on wheels via hinges, which supports and carries the load of two checked suitcases and one carry-on suitcase. The trolley is equipped with a locking system for the open and closed positions, using steel pins and a locking bar. The upper part of the trolley is made of aluminum tubing of standard sections and thicknesses, as well as tubes in the middle of the trolley when unfolded. It includes a telescopic handle with a push button and a gap between the handle and the middle of the unfolded trolley. Also on this upper part is a fitted, detachable, closable, and openable A4-sized pouch. The invention is particularly suited for air travel luggage.