Solid Tire Wing-Shaped Cushioning Holes for Ride Comfort
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Solution Overview
Problem
Industrial and construction machines equipped with solid tyres of high hardness provide an uncomfortable ride for operators due to lack of suspension, and softer tyres with cushioning holes lead to rapid tread deterioration and reduced service life.
Innovation Solution
A resilient solid tyre with a base hardness of 80±15 Sh A and tread hardness of 70±5 Sh A, featuring wing-shaped cushioning holes on lateral surfaces that taper inward, designed to absorb vibrations and impacts, allowing for deformation and extended durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tread hardness is reduced to between 45 and 65 Sh A to improve cushioning properties, then the absorption of vibrations and impact is improved, but the service life is reduced due to fast deterioration
Solution Approach 1:
The patent applies different hardness values to different parts of the tyre: the base has hardness 80±15 Sh A for structural support and puncture resistance, while the tread has hardness 70±5 Sh A for optimized cushioning. This local differentiation allows each part to perform its specific function optimally without compromising overall durability.
Solution Approach 2:
The tyre is segmented into distinct functional zones with different material properties. The base and tread are separated as distinct layers with different hardness characteristics, allowing independent optimization of each zone's properties for its specific operational requirements.
2Strength
If high hardness material mix is used to resist punctures, then the resistance to puncturing is improved, but the comfort for the driver is reduced due to vibration transmission
Solution Approach 1:
Different regions of the tyre are assigned different hardness properties: the base (80±15 Sh A) provides puncture resistance for industrial applications, while the tread (70±5 Sh A) provides vibration absorption for operator comfort. This local quality differentiation resolves the contradiction between strength and comfort.
Solution Approach 2:
The tyre uses a composite structure with two distinct material formulations - a harder base material for puncture resistance and a slightly softer tread material for comfort. This composite approach allows simultaneous achievement of opposing properties in different parts of the same component.
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 tyre provides improved cushioning properties, reducing operator discomfort and extending the service life by effectively absorbing vibrations and impacts while maintaining resistance to wear and tear.
Implementation Method 1
designed to absorb vibrations and impacts, allowing for deformation and extended durability
Implementation Method 2
resilient tyres, which are structurally made up of a plurality of circular layers of elastic material
Data Source
AI summary
Described herein is a resilient tyre (1) designed to be used on industrial and construction machinery, said resilient tyre (1) comprising a plurality of circular layers of elastic material set on top of one another in the radial direction, said layers forming, proceeding from the centre of the resilient tyre (1) towards the periphery, an inner portion referred to as base (2), an outer portion referred to as tread (3), and two lateral surfaces (4, 4′) with height (Q). The resilient tyre (1) comprises a plurality of cushioning holes (7) made in both of the lateral surfaces (4, 4′) of the resilient tyre (1), said cushioning holes (7) substantially having a wing-like shape.