Resilient Beadlock Clips for Low-Pressure Tire Bead Retention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-torque or high-lateral-load conditions, especially for low-pressure or airless tires, the bead region of the tire is prone to slipping or separating from the wheel rim, and existing beadlock arrangements add significant weight and bulk to the wheel assembly.
Innovation Solution
A beadlock system utilizing resilient metal clips that engage abutment surface regions on the tire sidewalls and the rim lip, providing clamping forces to prevent bead separation, with the clips being elastically deformable and countersunk for enhanced engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional beadlock arrangements with flanges are used to prevent bead separation, then reliability is improved, but weight and bulk increase significantly
Solution Approach 1:
The beadlock system is segmented into multiple independent beadlock clips distributed around the tire circumference, each clip acting as a separate clamping element. This segmentation allows the use of lighter individual components compared to a single heavy flange-based system, while collectively providing sufficient clamping force to prevent bead separation.
Solution Approach 2:
The invention extracts the essential clamping function from the heavy flange structure and implements it through simplified beadlock clips that engage with the tire bead and rim. By removing unnecessary structural elements and retaining only the critical clamping mechanism, the system achieves reliable bead retention with significantly reduced weight.
2Reliability
If traditional beadlock arrangements with flanges are used to prevent bead separation, then reliability is improved, but volume and bulk increase significantly
Solution Approach 1:
The beadlock system is divided into multiple small, distributed clips rather than a single large flange structure. This segmentation enables the clips to be positioned in the annular recess between the tire bead and rim lip, utilizing available space efficiently without adding significant bulk to the overall wheel assembly volume.
Solution Approach 2:
The beadlock clips are nested within the annular recess formed by the tire sidewall and rim lip structure. This nesting approach allows the beadlock mechanism to be accommodated within the existing geometric envelope of the wheel-tire assembly, minimizing additional volume requirements.
3Weight of moving object
If resilient metal clips are used instead of flanges, then weight is reduced, but clamping force may be insufficient
Solution Approach 1:
The resilient metal clips are designed with optimized material properties and geometric parameters, including elastic modulus, cross-sectional dimensions, and curvature radius, to generate sufficient clamping force through elastic deformation. By carefully selecting and tuning these parameters, the clips achieve the required clamping force while maintaining lightweight construction.
Solution Approach 2:
The beadlock clips utilize composite structural design combining resilient metal properties with optimized geometry. The clips are formed from metal strip material that exhibits both flexibility for elastic deformation and sufficient strength to maintain clamping force under high-torque and high-lateral-load conditions.
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 beadlock system effectively secures the tire bead to the rim, preventing slipping and separation, while minimizing weight and bulk, thus enhancing torque delivery and stability without adding excessive weight or bulk to the wheel assembly.
Implementation Method 1
each of the beadlock clips is implemented as a resilient metal clip which is elastically deformable so as to be transiently deformed during deployment engaging the abutment surface and the opposing surface of the rim
Data Source
AI summary
A tire and beadlock clip system for assembly on a rim employs a tire of a type having an annular recess in each sidewall of the tire. As a result of the recessed sidewall structure, one or more beadlock clip can be directly engaged, after seating of the tire, between a corresponding abutment surface region, provided on the outer surface of the sidewall and oriented to face away from the rim lip, and an opposing surface of the rim, thereby opposing separation of the bead region from the bead seat. Preferably, the clips are resilient clips which can be snap-fit into engagement manually or with a mallet. Alternatively, a positive clamping mechanism may be provided.