Sidewall Protector Ribs for Telescopic Material Handler Tires
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Telescopic material handlers' tires face significant sidewall damage due to operating on rough construction sites with debris and obstacles, and existing tires with high aspect ratios provide inadequate protection, especially at the widest point of the sidewall.
Innovation Solution
A pneumatic tire design featuring a circumferentially continuous sidewall protector rib and a non-continuous rib, both projecting axially outward to provide enhanced protection, with a low aspect ratio and a flat, vertical sidewall profile to minimize damage from lateral impacts, and a multi-tier design to deflect obstacles effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high aspect ratio tires are used to provide sidewall protection, then sidewall strength is improved, but the tire width increases and maneuverability deteriorates
Solution Approach 1:
The tire sidewall is segmented into different functional zones: a protected upper sidewall region with increased thickness and a lower sidewall region with standard dimensions. This segmentation allows the tire to have enhanced sidewall strength where needed (upper portion) without increasing the overall tire width, thus resolving the contradiction between sidewall strength and maneuverability.
2Reliability
If sidewall protector ribs are added to protect against debris and curbs, then sidewall protection is improved, but device complexity increases
Solution Approach 1:
The sidewall protector rib is merged with the tread structure, forming an integrated component that serves both as part of the tread assembly and as protective sidewall reinforcement. This merging reduces device complexity by eliminating separate protector components while maintaining improved sidewall protection against debris and curbs.
3Reliability
If the sidewall protector rib projects axially outward beyond the tread, then sidewall protection is improved, but the tire profile becomes less stable
Solution Approach 1:
The tire profile is designed with local quality variations: the sidewall protector rib projects axially outward only in specific localized areas where protection is most needed (near the tread sidewall interface), while other portions of the sidewall maintain a more stable, streamlined profile. This localized projection provides enhanced protection without significantly compromising overall tire profile stability.
Data Source
AI summary
A pneumatic tire for use with telescopic material handlers includes a first concentrically continuous sidewall protector rib projecting axially outward from the sidewall and located above a midpoint of the sidewall. A second non-continuous sidewall protector rib is located concentrically outward of the first sidewall protector rib. The tire is a relatively low aspect ratio tire having a relatively flat sidewall profile. This provides a tire having the advantage of added sidewall protection without increasing the overall width of the inflated tire.