Annular Tire Overlay with Flange for Skid Training
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Solution Overview
Problem
Existing skid training devices are limited to specific, costly, and location-dependent surfaces, and cannot be securely fixed to tires without matching tread patterns, restricting their use on conventional road surfaces like asphalt or concrete.
Innovation Solution
An annular tire overlay with a tread surface for reduced friction and a gripping surface for secure attachment, featuring a flange to prevent tire-road contact and ensure stability, allowing for use on various surfaces and tire sizes, manufactured from materials like PVC or polyurethane with adjustable friction properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tread strip is used to reduce friction for skidding, then skidding control is improved, but secure fixation to the tyre cannot be achieved without matching tread patterns
Solution Approach 1:
The invention transitions from a simple circular tread strip to an L-shaped structure by adding a flange that extends radially outward. This dimensional change allows the flange to engage with the tyre sidewall, providing fixation in a new spatial dimension (radial direction) while the tread portion maintains friction reduction function.
Solution Approach 2:
The flange acts as an intermediary element between the tread strip and the tyre sidewall. It mediates the connection by providing a mechanical engagement surface that interfaces with the tyre structure, enabling secure fixation without requiring pattern matching between tread and tyre.
2Reliability
If skid training is conducted on specialized surfacings, then skidding behavior is predictable, but the cost and location dependency increase significantly
Solution Approach 1:
The invention extracts the friction-modifying function from the road surface and transfers it to a detachable component (tread strip with flange) that can be applied to standard tyres. This allows predictable skidding behavior to be achieved through the overlay material properties rather than requiring specialized road surfacings.
Solution Approach 2:
The tread strip with flange is designed to be universally applicable to conventional tyres and can be used on standard road surfaces. The single component provides both the friction reduction function (tread portion) and the fixation function (flange portion), making the system versatile and location-independent.
3Reliability
If the tyre overlay width matches the rolling surface, then contact prevention is effective, but the overlay may project beyond the rolling surface causing nuisance
Solution Approach 1:
The overlay width is specifically designed to match only the rolling surface width of the tyre, not the entire tyre width. This local quality approach ensures that the overlay provides contact prevention exactly where needed (on the rolling surface) while avoiding unnecessary projection beyond the rolling surface that would cause operational nuisance.
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
Enables secure, cost-effective, and versatile skid training on conventional road surfaces, providing controlled skidding characteristics without the need for specialized surfaces, ensuring the tire overlay remains attached during use.
Implementation Method 1
a tread whose friction with the road surfacing determines behaviour in a skid
Implementation Method 2
a gripping surface which has to make a union with the tyre
Data Source
AI summary
Annular tire overlay (11) for drawing onto the rolling surface of tires (40), which has a tread (17) on its outside and a gripping surface (15) on its inside, which tire overlay (11) is so designed that contact between the rolling surface of the tire (40) and the surfacing of the road is prevented by the tire overlay (11) when the tire overlay has been drawn onto a tire. The said tire overlay (11) is provided with a flange (21) which stops the tire overlay (11) from shifting in the axial direction of the wheel. Advantageously, the tire overlay is additionally stiffened by a flange (21) of planar form to keep the contact area on the surface below small.