Removable Wheel Device for Field Goal Frame
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Solution Overview
Problem
Field game goals, such as soccer and lacrosse goals, are difficult to move due to their weight and design, as traditional methods of attaching wheels or caster assemblies damage the goal and alter its dimensions, making them non-compliant with official measurements.
Innovation Solution
A removable wheel device comprising a sleeve with a base, support, and cantilevered member, along with a wheel and axle, and a bracket that connects the axle to the sleeve, allowing for easy attachment and detachment from the goal frame, enabling movement without damaging the goal and maintaining compliance with official dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wheels or caster assemblies are welded or screwed to the goal frame, then the goal becomes movable, but the goal frame is damaged and its dimensions are altered making it non-compliant
Solution Approach 1:
The patent introduces an intermediary device consisting of a sleeve that fits over the goal frame leg and a separate wheel assembly that attaches to the sleeve. This intermediary structure allows the wheel to be mounted without directly attaching to the goal frame, thereby preventing damage to the frame and its dimensions. The sleeve acts as a mediator between the wheel and the goal frame, enabling movability while preserving the integrity of the original structure.
Solution Approach 2:
The wheel mounting system is divided into separate components: the goal frame leg, the sleeve that fits over the leg, and the wheel assembly that attaches to the sleeve. This segmentation allows each component to be optimized independently and enables the wheel to be attached without modifying the goal frame, thus avoiding damage while achieving movability.
2Ease of operation
If wheels or caster assemblies are attached to the goal frame, then the goal becomes movable, but the dimension compliance is compromised
Solution Approach 1:
The sleeve serves as an intermediary component that fits over the goal frame leg without altering its dimensions. The wheel assembly attaches to the sleeve rather than the frame directly, ensuring that the official measurements of the goal remain unchanged while still achieving the desired movability.
Solution Approach 2:
The sleeve is designed to fit over the goal frame leg in a nested configuration, with the wheel assembly then fitting over or onto the sleeve. This nested arrangement allows the wheel mounting structure to be contained within or around the existing frame structure without adding to or altering the official dimensions of the goal.
3Ease of operation
If traditional wheel attachment methods are used, then the goal becomes movable, but the attachment process is complex and damaging
Solution Approach 1:
The sleeve acts as a pre-fabricated intermediary component that simplifies the attachment process. Instead of welding or screwing wheels directly to the frame, the sleeve is slipped over the leg and the wheel assembly is attached to the sleeve using simple fastening mechanisms, greatly reducing manufacturing complexity and avoiding damage.
Solution Approach 2:
The attachment system is designed to be dynamic and adjustable rather than fixed. The sleeve can be slipped on and off, and the wheel assembly can be attached and detached using simple fasteners, allowing for easy installation and removal without complex manufacturing processes or permanent modifications to the goal frame.
Data Source
AI summary
A removable wheel device which slides onto the base of a sports field goal. The wheel device allows one person to move a goal across a field without using excessive force by sliding one wheel device onto the base of each goalpost and using leverage to tilt the goal and push or pull it for a distance. When inserted onto the base of the goal, the wheel device does not require any type of fastening to remain in place, but rather uses its own unique shape to hold onto the goal. Because field goals vary in structure, so too do each of the embodiments of the removable wheel device. Some of these variances include the angle of the axle, the location and structure of the notch, and the use of a protrusion.