Hand Truck Helper Mechanism for Single-Operator Heavy-Load Tilting
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Solution Overview
Problem
Hand trucks often require multiple people to lift and tilt heavy weights due to the difficulty of a single operator safely tilting the hand truck with a heavy load, leading to potential safety hazards and inefficiencies.
Innovation Solution
A hand truck 'helper' mechanism that attaches to the nose blade, featuring a platform with an angle maintaining portion and slots, allowing the hand truck to be tilted at an angle relative to the ground, reducing the effort required to lift and transport heavy loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a hand truck is used to lift heavy weights, then the hand truck can transport heavy loads, but multiple people are required to lift and tilt the hand truck safely
Solution Approach 1:
The hand truck system is divided into separate functional components: the hand truck frame, the nose blade, and the helper mechanism with angle maintaining portion. This segmentation allows each component to perform its specific function independently, enabling the angle maintaining portion to hold the nose blade at a predetermined angle while the operator maneuvers the hand truck.
Solution Approach 2:
The helper mechanism acts as an intermediary between the nose blade and the ground. It includes an angle maintaining portion that interfaces with the ground to maintain a predetermined angle, and a connection portion that links to the nose blade. This intermediary mechanism enables the nose blade to be held at the correct angle without requiring multiple people to manually position and hold it.
2Reliability
If multiple people are used to lift and tilt the hand truck, then safety is improved, but productivity and efficiency decrease
Solution Approach 1:
The angle maintaining portion of the helper mechanism is designed to automatically maintain the predetermined angle between the nose blade and the ground through its own structural properties. The mechanism self-regulates the angle without requiring external intervention or multiple operators to manually hold positions, enabling a single operator to safely and efficiently maneuver the hand truck.
3Force
If the nose blade is held at a predetermined angle, then the effort to lift and roll is reduced, but the device complexity increases
Solution Approach 1:
The helper mechanism incorporates an angle maintaining portion that dynamically adjusts to maintain the predetermined angle between the nose blade and the ground during operation. This dynamic capability allows the system to automatically adapt to different loading conditions and operator movements, reducing lifting effort without requiring complex active control systems.
Data Source
AI summary
Devices, systems, and methods are provided for helping hand trucks lift heavy objects. A device for attaching to hand trucks and lifting objects may include a pallet portion for lifting weight, the pallet portion having a bottom portion facing the ground and a top portion, wherein weight is arranged on the top portion; an angle maintaining portion attached to the bottom portion, wherein when the angle maintaining portion is touching the ground, the pallet portion is positioned at an angle greater than zero relative to the ground; and one or more slots attached to the bottom portion, wherein the one or more slots are configured to attach to a hand truck nose blade by sliding the hand truck nose blade into the one or more slots.