Quick-Release Attachment Hub for Abrasive Disc Alignment
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Solution Overview
Problem
Conventional sander systems require frequent replacement of abrasive discs before their end of life, leading to inefficiency and waste, as different grades of abrasive discs need to be used sequentially.
Innovation Solution
An attachment hub with a quick-release attachment assembly that allows for easy and aligned engagement with a backup pad, enabling the secure mounting of abrasive discs to a sander without the need for frequent disc changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manual alignment and attachment of abrasive discs is used, then the abrasive disc can be securely mounted, but the process is time-consuming and requires frequent disc changes before end of life
Solution Approach 1:
The attachment system is divided into separate functional components: a backup pad with alignment features and a quick-release mechanism. This segmentation allows the alignment and attachment functions to be performed independently and efficiently, enabling rapid disc changes without manual alignment procedures.
Solution Approach 2:
The backup pad is pre-equipped with alignment features (such as alignment pins or grooves) that automatically guide and position the abrasive disc before attachment. This preliminary alignment preparation eliminates the need for manual alignment during the disc change process, significantly reducing the time required.
2Adaptability or versatility
If abrasive discs are replaced frequently due to grade changes, then different sanding requirements can be met, but waste increases and efficiency decreases
Solution Approach 1:
The attachment hub and backup pad system is designed as a universal interface that can accommodate multiple abrasive disc grades and types. The standardized quick-release mechanism allows users to switch between different disc grades efficiently, making the system adaptable to various sanding requirements while minimizing waste by maximizing the usage life of each disc.
3Reliability
If a secure attachment mechanism is used to hold the abrasive disc, then the disc remains firmly mounted, but the mechanism becomes complex and difficult to operate
Solution Approach 1:
The attachment mechanism transitions from a static, complex securing system to a dynamic quick-release system. The backup pad includes a release mechanism (such as a button or lever) that allows the user to quickly disengage the abrasive disc from the attachment hub, providing both secure mounting during operation and ease of removal when needed.
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
The system allows for quick and easy disc changes, reducing waste and improving efficiency by allowing abrasive discs to be used until they reach the end of their life, while also facilitating dust extraction and reducing vibrations.
Implementation Method 1
The quick-release attachment assembly may comprise at least one spring member. The spring member may comprise any suitable type of spring, e.g., a spiral spring, a leaf spring, and/or a cantilever spring.
Data Source
AI summary
The present invention relates to an attachment hub for attachment to a sander, comprising a quick-release attachment assembly configured for releasable and aligned engagement with a counterpart of a backup pad particularly for an abrasive disc. Furthermore, the invention relates to a backup pad having a disc-like shape and comprising a first major surface and a second major surface, the first major surface configured for direct or indirect attachment of an abrasive disc, and the second major surface configured for facing towards an attachment hub for attachment to a sander, and a mounting portion for aligned engagement with an attachment hub of a sander.