Resilient Wheel with Spring Elements and Axial Teeth
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Solution Overview
Problem
Existing resilient wheel designs lack a cost-efficient and environmentally friendly solution for providing inherent resiliency and efficient torque transmission, often requiring pneumatic tires that are prone to punctures and having complex constructions.
Innovation Solution
A resilient wheel design featuring an inner and outer wheel part connected by elongated spring elements, with lateral walls and teeth to secure the spring elements and restrict movement, allowing for efficient torque transmission and eliminating the need for pneumatic tires, while being manufactured from steel in a simple and cost-effective manner.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pneumatic tires are used to provide resiliency, then the wheel can absorb shocks and vibrations, but the risk of punctures increases and the construction becomes more complex
Solution Approach 1:
The patent removes the pneumatic tire from the wheel assembly entirely, extracting the problematic component that causes punctures and complexity. The resiliency function is instead achieved through spring elements integrated directly into the wheel structure, eliminating the need for air-filled tires while maintaining shock absorption capabilities.
Solution Approach 2:
The patent changes the physical state and mechanism of resiliency from pneumatic pressure (air-filled tire) to mechanical elasticity (spring elements). This parameter change transforms the resiliency source from a pressurized gas system to a solid mechanical system, eliminating puncture risks while providing comparable shock absorption.
2Ease of manufacture
If the wheel rim is manufactured as a single piece, then the structure is simpler, but manufacturing quality and ease of repair are reduced
Solution Approach 1:
The wheel rim is divided into multiple separate segments rather than being manufactured as a single piece. This segmentation allows each segment to be manufactured independently with higher precision and quality control, while also enabling easier replacement of damaged segments without replacing the entire rim assembly.
3Stability of the object's composition
If the outer and inner wheel parts are allowed to move freely relative to each other, then the wheel can accommodate deformations, but torque transmission efficiency decreases
Solution Approach 1:
The patent implements a dynamic positioning system where the outer and inner wheel parts are constrained to specific positions through teeth and recesses engagement, while still allowing controlled relative movement through spring elements. This dynamic constraint system maintains torque transmission efficiency by preventing excessive movement while accommodating necessary deformations during operation.
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 achieves efficient torque transmission, reduces the risk of punctures, and allows for easy replacement of wheel rim segments, while maintaining a simple and cost-efficient manufacturing process, making it suitable for use in vehicles and forestry applications.
Implementation Method 1
one or more elongated spring elements arranged in an annular space between the inner wheel part and the outer wheel part, wherein the outer wheel part is resiliently connected to the inner wheel part through the spring element or elements
Data Source
Figure 1~3
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AI summary
A resilient wheel comprising: - an inner wheel part (10), - an annular outer wheel part (20) surrounding the inner wheel part and resiliently connected to the inner wheel part through elongated spring elements (4) arranged in an annular space (2) between the inner and outer wheel parts, this space being limited in radial direction by an annular edge (24) on the outer wheel part and an annular edge (14) on the inner wheel part, wherein each spring element is fitted between these edges; and - lateral walls (21a, 21b) arranged opposite to each other and fixed to one of said wheel parts, said annular space being limited in axial direction by these walls. Teeth (25) on the lateral walls project from the associated wheel part and are received with play in recesses (15) in the other wheel part. These teeth keep the outer wheel part in place in relation to the inner wheel part in axial direction.