Stair Roller Base Spanning Tread and Riser for Secure Attachment
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Solution Overview
Problem
Existing stair-based roller systems are inefficient for rolling objects up or down multiple stairs, as they often fail to securely attach to both tread and riser surfaces, leading to instability and damage.
Innovation Solution
A stair-mounted roller wheel device with a base that spans across both tread and riser, featuring a rotating roller member supported by armatures with a gripping interface to prevent scratching, and optional undercut support for enhanced stability, allowing the roller to rotate parallel to the stair surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing stair-based roller systems are used, then rolling objects up or down stairs is possible, but they fail to securely attach to both tread and riser surfaces leading to instability and damage
Solution Approach 1:
The base is divided into two separate attachment components: a tread attachment portion that engages with the stair tread surface and a riser attachment portion that engages with the stair riser surface. This segmentation allows each component to be optimized for its specific attachment surface, ensuring secure attachment to both surfaces simultaneously while maintaining system stability.
2Ease of operation
If a roller member is added to enable rolling objects up or down stairs, then rolling capability is improved, but the complexity of the device increases
Solution Approach 1:
The roller member is integrated directly into the base structure, merging the rolling function with the attachment structure. The roller member is positioned within the base such that it combines the functions of movement facilitation and structural support, reducing overall device complexity while maintaining ease of operation.
Solution Approach 2:
The base structure serves multiple functions simultaneously: it provides attachment to the stair surfaces through the tread and riser portions, supports the roller member for rolling capability, and distributes weight across the stair surfaces. This multi-functionality reduces the need for separate components, simplifying the overall device structure.
3Stability of the object's composition
If weight is distributed evenly across the base, then stability is improved, but the base structure becomes more complex
Solution Approach 1:
The base features localized attachment portions with gripping interfaces specifically designed for engaging stair surfaces. These local quality enhancements at the tread and riser attachment areas provide stable weight distribution without requiring complex overall base structure, as the stability is achieved through targeted local features.
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 and damage-free rolling of objects up or down staircases by distributing weight evenly and providing a stable interface with the stair surfaces, suitable for use on multiple stairs with improved stability and reduced risk of damage.
Implementation Method 1
a roller member (105) rotatably engaged at a top, front corner of the base (101)
Implementation Method 2
armatures with a gripping interface to prevent scratching
Data Source
AI summary
The stair-mounted roller wheel device is a device that is adapted for use with at least one stair. Moreover, the stair-mounted roller wheel device is adapted to be positioned onto a stair tread as well as a riser surface of the at least one stair. The stair-mounted roller wheel device includes a base that rests on the stair tread as well as the riser. A roller member is rotatably engaged at a top, front corner of the base. The roller member is adapted to be parallel with the stair tread and the riser. Ideally, in a situation where a plurality of stairs of a staircase is provided, a plurality of the stair-mounted roller wheel devices would be positioned on each of the plurality of stairs such that the object is adapted to be rolled up or down the staircase.