Pneumatic Tire with Angled Reinforcements and Support Device
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Solution Overview
Problem
Pneumatic vehicle tires face mechanical instability during irregular operations, leading to potential damage and impaired driving properties, despite having sufficient mechanical stability for regular use.
Innovation Solution
A support device is arranged between the tire carcass and the inner layer to enhance mechanical stabilization, specifically supporting the area below the tread strip, and the tire carcass design features rubberized reinforcements with varying angles in different areas to improve stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a radial tire construction with rubberized reinforcements running essentially radially (angle of approximately 90° with the circumferential direction) is used across the entire width of the carcass, then the tire achieves sufficient mechanical stability for regular operation, but the tire exhibits mechanical instability and potential damage during irregular operations
Solution Approach 1:
The patent applies different reinforcement angles in different regions of the tire carcass. Specifically, the central area has rubberized reinforcements running at angles between 5° to 75° relative to the circumferential direction, while the side areas maintain the traditional radial construction with angles of 80° to 90°. This local differentiation allows the central area to better withstand irregular operation stresses while preserving the stability of side areas during regular operation.
2Reliability
If the rubberized reinforcements in the central area are angled at 5° to 75° relative to the circumferential direction, then the tire gains improved stability during irregular operations, but the structural complexity of the tire carcass increases
Solution Approach 1:
The tire carcass is segmented into distinct functional zones: a central area with angled reinforcements (5° to 75°) and side areas with radial reinforcements (80° to 90°). This segmentation allows each zone to be optimized for its specific operational requirements, with the central area handling irregular operation stresses and the side areas maintaining structural stability during normal operation.
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a vehicle pneumatic tire (1) comprising: a) a tire carcass (4) with a first side region (5), a second side region (6) and a central region (7) arranged between them, comprising at least one carcass ply (8) with a plurality of rubberized reinforcing elements (9) extending through the first side region (5), the second side region (6) and the central region (7) of the tire carcass (4), b) a tread strip (10) located radially further outwards relative to the tire carcass (4), c) an inner tire layer (11) located radially further inwards relative to the tire carcass (4), wherein at least a portion of the rubberized reinforcing elements (9) of the carcass ply (8) forms an angle (14) in the range of 80° to 90° with respect to the circumferential direction (3) in the first side region (5) and in the second side region (6) and an angle (15) in the range of 5° to 75° in the central region (7). includes characterized by,that a support device (13) is arranged between the tire carcass (4) and the tire inner layer (11).