Introduction
The “Mechanism of Smooth Stair Climbing for Hand Truck / Trolley” introduces a groundbreaking manual solution for stair climbing. This innovative mechanism eliminates the need for lifting effort by the user, leveraging a combination of rolling, sliding, and moment action. During stair climbing, the user only needs to exert either push or thrust force, making the process efficient and user-friendly.
Technical Description
The mechanism’s structure is meticulously designed with the following components:
1. Adjustable Base: A length-adjustable base provides flexibility and adaptability for various objects.
2. Fixed Castor Rollers: These heavy load-bearing rollers facilitate forward and backward rolling, ensuring smooth movement.
3. Steel Balls: Mounted at the bottom of the base, these reduce friction during sliding and enhance efficiency.
4. Handle: A sturdy handle supports user control and maneuverability.
The functionality incorporates three sequential phases:
– Prepare to Climb Phase: Aligning the hand truck/trolley at the base of the stairs.
– Climb Phase: Utilizing rolling, sliding, and moment action to ascend each step.
– Move to Next Prepare to Climb Phase: Transitioning to the next stair for continued climbing.
Patent Information
– Malaysia Patent No.: MY-205454-A
– Grant Date: October 22, 2024
Key Features and Advantages
– Effortless Operation: Smooth stair climbing without requiring lifting effort from the user.
– Cost-Effective Design: Unlike conventional stair-climbing trolleys, this mechanism achieves superior functionality without additional major components or high assembly costs.
– Versatility: Capable of carrying objects longer than its base, such as refrigerators, with the aid of an additional base as detailed in the patent specifications.
– Broader Applications: Potential to extend this stair-climbing function to various other products, including:
– Wheelchairs
– School bags
– Laundry baskets
– Mop buckets
– Luggage and cases
– Gas tanks
– Mini shopping trolleys
– Proven Feasibility: A working prototype has been successfully developed by modifying a platform hand truck currently available on the market, demonstrating minimal further development required for commercialization.
