Heavy-Vehicle Tire Tread Layout for Mud Grip and Stone Robustness
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Solution Overview
Problem
Heavy-duty vehicle tires face challenges in maintaining effective grip on muddy ground, managing heat dissipation, and resisting mechanical stresses, particularly in harsh construction site conditions, leading to potential tire damage.
Innovation Solution
A tire tread design with specific arrangements of blocks, grooves, and sipes, including transverse and longitudinal channels, enhances mud and water discharge, promotes grip, and improves heat management through ventilation and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If the tread uses wide grooves for mud discharge, then mud and water discharge capability is improved, but longitudinal grip and transverse grip deteriorate
Solution Approach 1:
The tread pattern is segmented into multiple functional elements: longitudinal grooves for mud discharge, transverse grooves for lateral water evacuation, and sipes for grip enhancement. This segmentation allows each element to specialize in one function, resolving the contradiction between mud discharge and grip maintenance.
Solution Approach 2:
Different regions of the tread are assigned different qualities and functions: longitudinal grooves in specific zones for mud channeling, transverse grooves in other zones for lateral discharge, and sipes distributed throughout for grip. This local differentiation allows optimal performance for each function without compromising others.
2Force
If the tread uses narrow sipes for grip enhancement, then longitudinal grip and transverse grip are improved, but mud discharge capability deteriorates
Solution Approach 1:
The tread pattern is segmented into multiple functional elements: longitudinal grooves for mud discharge, transverse grooves for lateral water evacuation, and sipes for grip enhancement. This segmentation allows each element to specialize in one function, resolving the contradiction between mud discharge and grip maintenance.
Solution Approach 2:
The invention merges multiple groove types (longitudinal grooves, transverse grooves) and sipes into a unified tread pattern system. This combination allows the tread to simultaneously achieve mud discharge capability through grooves and grip enhancement through sipes, resolving the contradiction between these functions.
3Object-generated harmful factors
If the tread uses deep cuts for mud discharge, then mud and water discharge capability is improved, but heat dissipation and ventilation deteriorate
Solution Approach 1:
The tread pattern is segmented into multiple functional elements: longitudinal grooves for mud discharge, transverse grooves for lateral water evacuation, and sipes for grip enhancement. This segmentation allows each element to specialize in one function, resolving the contradiction between mud discharge and grip maintenance.
Solution Approach 2:
The invention introduces transverse grooves that operate in a different dimension (lateral direction) compared to traditional longitudinal grooves. This dimensional addition provides new pathways for water and mud discharge without compromising the heat dissipation function, as the transverse grooves work alongside rather than replace the longitudinal ventilation channels.
4Force
If the tread uses a dense block pattern for grip, then longitudinal grip and transverse grip are improved, but heat buildup and tire crown temperature increase
Solution Approach 1:
The tread pattern is segmented into multiple functional elements: longitudinal grooves for mud discharge, transverse grooves for lateral water evacuation, and sipes for grip enhancement. This segmentation allows each element to specialize in one function, resolving the contradiction between mud discharge and grip maintenance.
Solution Approach 2:
Different regions of the tread are assigned different qualities and functions: longitudinal grooves in specific zones for mud channeling, transverse grooves in other zones for lateral discharge, and sipes distributed throughout for grip. This local differentiation allows optimal performance for each function without compromising others.
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 tread design effectively discharges mud and water, enhances grip, and reduces tire crown temperature, improving endurance and reducing wear, as demonstrated by reduced braking distances and lower crown temperatures compared to conventional designs.
Implementation Method 1
The tread design effectively discharges mud and water
Implementation Method 2
improves heat management through ventilation and cooling
Implementation Method 3
To ensure a satisfactory performance in terms of longitudinal grip, under engine torque and braking torque
Data Source
AI summary
A tire tread (1), for a heavy-duty construction plant vehicle, having an improved compromise between resistance to mechanical attack caused by stony ground and grip on muddy ground. The tread (1) has five rows (41, 42, 43) separated in pairs by a longitudinal cut (51, 52) and are distributed, along the transverse direction (YY′), in a median row (43), two intermediate rows (42), and two lateral rows (41), the blocks (31, 32, 33) in one and the same row (41, 42, 43) separated in pairs at least partially by a transverse cut (61, 62, 63), each transverse cut in a lateral row (41) is a transverse groove, each transverse cut (62) in an intermediate row (42) is either a blind transverse groove (621), or a transverse sipe (622), are arranged in alternation along the longitudinal direction XX′, and each inner longitudinal cut (52) separating two adjacent rows (42, 43), respectively intermediate and median, is a longitudinal groove.