Flat Tire Safety Insert with Ratchet Clamping
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Solution Overview
Problem
Existing vehicle tire safety systems fail to provide adequate support under a flat tire, risking damage to the wheel rim when a vehicle attempts to drive on it.
Innovation Solution
A safety insert system comprising elongated semicircular members with clamping assemblies and optional steel reinforcement, designed to wrap around the tire rim and provide support underneath the tire, preventing the vehicle from driving on the rim until the tire can be changed, featuring a male-to-female connecting interface and ratchet mechanism for secure tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If existing vehicle tire safety systems are used, then the system structure is simple, but the support capability under a flat tire is insufficient, risking damage to the wheel rim
Solution Approach 1:
The safety insert is divided into multiple elongated curved members (typically two semicircular members) that can be separately installed and positioned within the tire. This segmentation allows each member to provide structural support independently while collectively forming a complete protective structure around the rim, enhancing support capability without requiring a monolithic complex structure
Solution Approach 2:
The elongated curved members are constructed using composite materials, specifically a polymeric matrix (such as polyurethane or rubber) reinforced with an interior steel band. This composite structure combines the flexibility and cushioning properties of the polymer with the high strength and rigidity of the steel reinforcement, providing robust support capability to prevent rim damage during flat tire scenarios
2Strength
If the elongated curved members are made with interior steel reinforcement, then the strength and support capability increase, but the weight of the safety insert increases
Solution Approach 1:
The steel reinforcement band is positioned specifically within the interior of the elongated curved members where maximum structural strength is needed, particularly at the areas that contact or support the wheel rim. The polymeric exterior provides flexibility and cushioning where needed, while the steel core provides localized strength reinforcement, optimizing the weight-strength ratio by placing material only where structurally necessary
3Strength
If the ends of the elongated semicircular members are connected with clamping assemblies, then the connection strength increases, but the ease of installation decreases
Solution Approach 1:
The elongated curved members are designed with pre-formed male-to-female connecting interfaces and pre-positioned anchors at their ends. These connection features are prepared in advance during manufacturing, allowing for relatively simple installation by aligning and joining the pre-prepared interfaces, rather than requiring complex assembly procedures during installation
4Area of stationary object
If the exterior perimeter of the elongated members is flattened, then the contact surface area increases providing better support, but the adaptability to different wheel configurations decreases
Solution Approach 1:
The elongated curved members feature localized flattening at their exterior perimeters specifically at the regions that contact the wheel rim, while maintaining a curved cross-sectional shape elsewhere. This localized geometric variation provides enhanced contact surface area and support capability at critical areas, while the overall curved form and standardized dimensions maintain adaptability to different wheel configurations
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 system effectively prevents damage to the wheel rim by providing robust support during a flat tire scenario, ensuring the tire can be safely changed without rim contact, and is adaptable for use with various wheel configurations.
Implementation Method 1
each clamping assembly comprises: a housing, a double-headed bolt passing through the housing, and a tightening bolt mounted within the housing. Rotating the tightening bolt turns the double-headed bolt, thereby pulling the two elongated members together
Implementation Method 2
A ratchet on the housing for permitting the tightening bolt to rotate in a tightening direction, but preventing the tightening bolt from rotating in a loosening direction
Implementation Method 3
The elongated curved members are dimensioned to wrap around a tire rim and be positioned within (i.e.: underneath) of the tire
Data Source
AI summary
A flat tire safety system, having: (a) a pair of elongated semicircular members dimensioned to wrap around a tire rim and be positioned within a tire; and (b) a pair of clamping assemblies, each clamping assembly securing an end of the first elongated semicircular member to the end of the second elongated semicircular member, wherein each clamping assembly has: (i) a housing, (ii) a double-headed bolt passing through the housing, (iii) a tightening bolt mounted in the housing, wherein rotating the tightening bolt turns the double-headed bolt, (iv) a ratchet on the housing for permitting the tightening bolt to rotate in a tightening direction and preventing the tightening bolt from rotating in a loosening direction, (v) a release on the housing for selectively permitting the tightening bolt to rotate in the loosening direction, and (c) a pair of anchors, wherein each anchor is embedded in the end of one of the elongated semicircular members, and wherein one end of the double-headed bolt passes through each of the anchors.