Self-Propelled Wrapping Machine Auxiliary Wheel Lifting for Manual Movement
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Solution Overview
Problem
Existing self-propelled wrapping machines face difficulties in easy maneuverability due to drive wheel resistance during manual movement, necessitating complex and expensive mechanical uncoupling systems.
Innovation Solution
A self-propelled wrapping machine with a lifting device that includes a rotatable or slidable auxiliary wheel, connected to a lever system, allows the drive wheel to be easily lifted from the supporting surface for manual movement, eliminating the need for mechanical uncoupling systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical uncoupling systems are added to the drive wheel, then ease of manual movement is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the lifting function from the drive wheel assembly by adding a separate lifting device with an auxiliary wheel. This lifting device can be independently activated to raise the drive wheel off the ground, removing the need for complex mechanical uncoupling systems while maintaining ease of manual movement.
Solution Approach 2:
The auxiliary wheel acts as an intermediary element between the lifting actuator and the drive wheel. When the auxiliary wheel contacts the ground, it provides the reaction force needed to lift the drive wheel, simplifying the overall lifting mechanism without requiring direct coupling between the actuator and drive wheel.
2Ease of operation
If the drive wheel remains in contact with the supporting surface, then stability during operation is improved, but ease of manual movement deteriorates
Solution Approach 1:
The patent implements a dynamic lifting system where the drive wheel can switch between two states: contacting the ground for operational stability, and lifted off the ground for easy manual movement. The lifting device is selectively actuated based on operational requirements, allowing the system to adapt its configuration dynamically.
Solution Approach 2:
The support function is segmented between two wheels: the primary drive wheel that contacts the ground during operation, and the auxiliary lifting wheel that contacts the ground during manual movement. This segmentation allows each wheel to serve its specific function without interfering with the other.
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
Enables easy and cost-effective manual movement of the wrapping machine without interfering with the drive wheel, reducing complexity and production costs while maintaining reliable operation.
Implementation Method 1
the auxiliary wheel abuts the supporting plane and lifts and detaches the drive wheel from the supporting plane
Implementation Method 2
A lever (13) is rotatably supported by the carriage (2) and connected to the supporting element (11)
Data Source
AI summary
A self-propelled wrapping machine movable on a supporting surface includes a self-propelled carriage provided with a drive wheel for moving the self-propelled wrapping machine and a lifting device having a supporting element provided with an idle auxiliary wheel associated with the carriage and selectively movable between a raised position, where the auxiliary wheel is spaced from a supporting plane, and a lowered position, where the auxiliary wheel abuts the supporting plane and lifts and detaches the drive wheel from the supporting plane. The supporting element is rotatably associated with the carriage to rotate between the raised and lowered positions. The lifting device has a lever rotatably supported by the carriage, connected to the supporting element by a connecting element and movable between a non-operating position and an operating position, where the lever arranges the supporting element respectively in the raised and lowered positions.