Hitch-Mounted Step Apparatus with U-Bracket and Convex Platform
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Solution Overview
Problem
Existing step apparatuses for vehicles require a dedicated tow hitch, often necessitating the replacement of existing hitches, which is inconvenient and may not provide adequate safety features.
Innovation Solution
A step apparatus that attaches to a conventional existing hitch using a U-shaped bracket with angled holes for locking pins and a bolt system, allowing easy installation and removal, with a convex platform design for safety and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dedicated tow hitch is used to provide a step, then step functionality is achieved, but the existing hitch must be replaced which is inconvenient and costly
Solution Approach 1:
The step apparatus is divided into separate components: a step platform and a mounting bracket assembly. The bracket can be independently attached to the existing hitch receiver, allowing the step to be installed without replacing the entire hitch system. This segmentation enables compatibility with standard hitches while simplifying installation.
Solution Approach 2:
A mounting bracket serves as an intermediary component between the existing hitch receiver and the step platform. The bracket interfaces with the standard hitch receiver tube and provides a mounting surface for the step, enabling compatibility without requiring modification or replacement of the original hitch.
2Ease of operation
If a simple step platform is provided, then ease of access is improved, but safety features are insufficient
Solution Approach 1:
The mounting bracket features an asymmetric U-shape design with the opening facing forward, allowing the locking pins to engage securely with the hitch receiver tube. The angled holes in the bracket sides provide asymmetric positioning that ensures proper orientation and secure engagement, enhancing safety while maintaining ease of installation.
Solution Approach 2:
The platform is designed with a convex curved surface facing rearwardly, which prevents accidental contact with vehicle bumpers and improves visibility. The curvature also provides a safer edge profile that reduces injury risk compared to sharp corners, while maintaining ease of access to the vehicle.
3Ease of manufacture
If the platform has a flat design, then manufacturing is simpler, but safety and visibility are reduced
Solution Approach 1:
The platform features a convex curved surface instead of a flat design. This curvature improves visibility by reflecting light differently and making the platform more noticeable. It also enhances safety by eliminating sharp corners that could cause injury, while the overall simple platform shape remains easy to manufacture.
Data Source
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AI summary
A step apparatus (1) comprises a platform (2) with a fastener (10) for gripping onto, and removal from, the ball of a conventional hitch. It allows easy access to a vehicle such as a delivery van. A socket (11) received a ball (B) of a hitch, and a U-shaped bracket (15) surrounds the neck (N) and lower surface of the ball (B). This arrangement allows the apparatus (1) to fit onto a wide range of ball hitches in an effective and convenient manner. The apparatus may be used as a step for convenient access to the rear of a vehicle such as a van, or it may be used as a standing platform to achieve an elevated view at an event for example.