Studded Tire Spike Structure for Ice Grip and Secure Anchoring
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Solution Overview
Problem
There is a conflict between ice performance and wear resistance in pneumatic vehicle tires with spikes, particularly due to the instability of the bonding agent in rubber-to-rubber bonds, which can lead to stud loss and reduced durability.
Innovation Solution
A pneumatic vehicle tire design featuring spikes with a narrow, uncovered pin supported directly by the tread, transitioning into a wider lower section and foot section for enhanced mechanical anchoring, thereby eliminating the need for additional supporting casings and improving durability and ice performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rubber-to-rubber bonding is used for rubber spike bodies, then ice performance and wear resistance are improved, but durability is reduced due to bonding agent instability
Solution Approach 1:
The patent employs a multi-material composite structure where a rubber spike body is combined with a metal reinforcement element (steel cage or steel insert). This composite construction provides the rubber material for ice performance and wear resistance while the metal component ensures structural integrity and durable mechanical anchoring in the tread, overcoming the bonding stability issues of pure rubber-to-rubber bonds.
Solution Approach 2:
The spike is divided into functionally distinct segments: a rubber outer layer for ice contact and wear resistance, and a separate metal reinforcement structure for mechanical strength and anchoring. This segmentation allows each material to perform its optimal function without relying on unstable chemical bonding between rubber layers.
2Strength
If metal spike bodies are used, then wear resistance is improved, but ice performance is restricted due to legal limits
Solution Approach 1:
The patent creates a composite spike structure where rubber material (providing good ice performance) is combined with metal reinforcement (providing wear resistance). The rubber outer layer maintains contact with ice surfaces for reliable grip, while the embedded metal cage or insert provides structural strength and durability, effectively combining the advantages of both materials.
Solution Approach 2:
Different materials are applied to different parts of the spike structure: rubber is used where ice contact is needed (outer surface), while metal is used where structural strength and wear resistance are required (internal reinforcement). This local differentiation of material properties optimizes both ice performance and durability.
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 enhances the durability and ice performance of the tire while maintaining or improving wear resistance, as the pin is directly supported by the tread, and the wider lower section provides additional mechanical anchoring.
Implementation Method 1
the pin has within the upper portion a support portion which is arranged within the tread and which is supported with an outer side directly on the tread
Implementation Method 2
a foot section for anchoring the respective spike in the spike hole
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a pneumatic vehicle tire with spike holes (3) arranged in a tread (1a), in each of which a spike (2) with an upper section (6a), a lower section (6b) and a foot section (6c) is introduced, wherein the upper section (6a) of the spike (2) is formed by a pin (5), wherein the pin (5) has within the upper section (6a) - a support section (5c) which is arranged within the tread (1a) and which is supported with an outer side (17) directly on the tread (1a), and - a projecting section (5b) which projects out of the tread (1a). According to the invention, it is provided that a lower cross-sectional dimension (Qb) of the lower section (6b) of the spike (2) is greater than or equal to a separating cross-sectional dimension (QT) which the upper section (6a) assumes at a separating line (TL) which separates the upper section (6a) of the spike (2) from the lower section (6b) of the spike (2).