Variable Wheel Position Wheelbarrow With Swinging Supports
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Classic wheelbarrows require significant vertical force to lift and maneuver loads due to the position of the wheel, and repositioning the wheel necessitates additional horizontal force, especially when loaded.
Innovation Solution
A wheelbarrow design with swinging supports and carriers that allow the wheel to be positioned under or in front of the body, utilizing leverage through pivot pins and limited swing stops to ease turnover, reducing vertical load and maneuvering effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the wheel is positioned in front of the body, then stability of the standing wheelbarrow is improved, but large vertical force is required to lift and maneuver the load
Solution Approach 1:
The wheelbarrow employs dynamic wheel positioning where the wheel can be relocated between a front position (for stability during loading) and a rear position (for reduced lifting force during transport). The movable wheel mechanism allows the system to adapt its configuration based on operational requirements, transforming a static structure into a dynamic one that optimizes performance for different tasks.
2Adaptability or versatility
If the wheel is repositioned using fixed supports and brake, then the wheel position can be changed, but considerable horizontal force is required to move the frame even when loaded
Solution Approach 1:
The support structure transitions from a fixed configuration to a dynamic one where supports can swing and rotate. This dynamic support system reduces friction and resistance during wheel repositioning, allowing the wheel to be moved between positions with minimal horizontal force even when the wheelbarrow is loaded.
Solution Approach 2:
The wheelbarrow frame is divided into separable functional components: the wheel assembly, the body, and the support structure. This segmentation allows the wheel to be independently repositioned relative to the body and supports, enabling flexible configuration changes without moving the entire loaded frame horizontally.
3Adaptability or versatility
If the wheel is moved using a carrier and fixed stops, then the wheel can be repositioned, but additional horizontal force is required during the turnover process
Solution Approach 1:
The carrier and stop mechanism is transformed into a dynamic system where the carrier can swing and the stops can rotate rather than remaining fixed. This dynamic behavior during the turnover process reduces mechanical resistance and allows the wheel to be repositioned with significantly reduced horizontal force requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enables easy wheel position change, reducing vertical load on handles and maneuvering force, enhancing stability and ease of handling loaded wheelbarrows.
Implementation Method 1
The supports are connected to the carriers by rods through the pivot pins, which creates a leverage effect that aids the turnover process.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The wheelbarrow with swing mounted supports (2) and variable wheel position (5) allows by construction solution and proposed method to change the position at least of one wheel (5) and the loaded wheelbarrow. By displacing at least of one wheel (5) more under the body (10), the vertical load on the handles (9) of the wheelbarrow when transporting the burden is reduced. The basis of solution is at least one support (2) swinging mounted on the frame (1) and swinging mounted at least one carrier (3). The shaft (4) at least of one wheel (5) is mounted at least in one carrier (3). The lower portions at least of one support (2) are connected to the upper portions at least of one carrier (3) by draw bars (6) through the pivot pins (7). Horizontal movement of the frame (1) forwards or backwards overturns at least one carrier (3) from one position to the other position limited by means of stops (8) and thereby displaces at least one wheel (5) more in front of the body (10) or more under the body (10)..