Device, sanding frame, sanding element, method and kit for sanding floor areas
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Solution Overview
Problem
Existing sanding devices for concrete and stone floor areas are laborious to maintain, as sanding elements require frequent replacement and are not easily interchangeable, and existing solutions for power trowels are either unsuitable for large areas or prone to wear due to tiltable connections.
Innovation Solution
A device with a subframe and sanding frame that allows for simple replacement of sanding elements, featuring a rotationally coupled adapter and receiver system that decouples easily for maintenance, and can be used with power trowels by detachably coupling with a blade rotor, enabling efficient sanding of large areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sanding elements are attached to a fixed sanding frame for sanding floor areas, then sanding efficiency is improved, but replacement of sanding elements becomes laborious and time-consuming
Solution Approach 1:
The sanding frame is divided into a modular structure with a receiver that can detachably receive an adapter. The adapter can be easily removed and replaced, allowing sanding elements to be changed quickly without replacing the entire sanding frame, thus reducing maintenance time while maintaining sanding efficiency.
Solution Approach 2:
The connection between the sanding frame and adapter is made detachable rather than fixed. This dynamic connection allows the adapter to be easily removed and reattached, enabling quick replacement of sanding elements while maintaining a stable connection during operation to preserve sanding efficiency.
2Ease of operation
If a tiltable connection system is used to allow tool detachment and connection, then manoeuvrability is improved, but connection strength decreases and wear increases
Solution Approach 1:
The connection system is segmented into a receiver on the sanding frame and an adapter that can be detachably connected. This segmented design allows for easy attachment and detachment (improving manoeuvrability) while maintaining a stable, non-tiltable connection during operation (preserving connection strength and reducing wear).
Solution Approach 2:
The adapter acts as an intermediary component between the sanding frame and sanding elements. It provides a stable, non-tiltable connection during operation while allowing easy detachment when needed, thus resolving the contradiction between connection strength and ease of operation.
3Manufacturing precision
If sanding elements are frequently replaced for maintenance, then sanding quality is maintained, but device complexity and maintenance effort increase
Solution Approach 1:
The sanding system is segmented into a reusable sanding frame with a detachable adapter. This allows sanding elements to be frequently replaced for maintenance (maintaining sanding quality) while the stable, simple connection system minimizes device complexity and reduces maintenance effort.
Data Source
AI summary
The present invention relates to a device (14) for sanding floor areas, the device comprising a frame, a steering, a motor which is provided to said frame, a subframe (13) rotatably coupled with said motor, said subframe being centrally provided with an adapter (7) along the lower side, a sanding frame (1), said sanding frame being centrally provided with a receiver (2) along the upper side, said receiver receiving said adapter, and at least one holder (5) for sanding elements, said holder being provided along the lower side of said sanding frame and being suitable for the attachment of sanding elements (15). In particular, the subframe is freely supported by the sanding frame, via said adapter and receiver, said adapter and receiver being rotationally coupled. In other aspects, the invention relates to a sanding frame, a sanding element and a method for sanding floor areas, as well as a floor area obtained by application of said method.