Dust Shroud Flexible Fitting for Grinder Adaptability
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Solution Overview
Problem
Existing dust shrouds do not perform well with grinders, necessitating an improved design that can accommodate a wide range of grinder types and vacuum hoses while providing effective dust emission reduction.
Innovation Solution
A dust shroud with an adaptive overmolded rubber flexible fitting and clamp arrangement for secure attachment to various grinders, along with a vacuum port adaptable to different hose sizes, and removable wall sections for improved airflow and accessibility, ensuring flexibility and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid fixed connection is used for dust shrouds, then structural stability is improved, but adaptability to different grinder types deteriorates
Solution Approach 1:
The dust shroud incorporates a flexible membrane structure that can deform and adapt to different grinder geometries while maintaining its integrity. This flexible membrane allows the shroud to conform to various tool shapes and sizes, resolving the contradiction between structural stability and adaptability to different grinder types.
Solution Approach 2:
The dust shroud design includes movable and adjustable components that can dynamically adapt to different tool configurations. The flexible membrane and adjustable positioning mechanisms enable the shroud to change its shape and position, providing both stability during operation and adaptability across different grinder types.
2Adaptability or versatility
If a universal connection design is used, then adaptability to different tools is improved, but connection reliability deteriorates
Solution Approach 1:
The connection system employs different connection mechanisms for different parts of the universal interface. Critical connection points use secure locking mechanisms for reliability, while other areas use flexible adaptive connections for compatibility. This localized differentiation resolves the contradiction between universal adaptability and connection reliability.
3Manufacturing precision
If a fixed geometry dust shroud is used, then manufacturing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The dust shroud is divided into modular segments including a fixed precision-manufactured core structure and flexible adjustable components. This segmentation allows the precision-critical parts to be manufactured with high accuracy while the flexible segments provide operational adaptability and ease of use.
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 solution allows for secure and flexible attachment to a wide range of grinders and vacuum hoses, enhancing dust collection efficiency and user convenience by accommodating different grinding tasks and shapes, while maintaining effective airflow and dust removal.
Implementation Method 1
the tool connection includes an adaptive overmolded rubber flexible fitting to allow for the use on a wide range of grinders
Implementation Method 2
the clamp arrangement can include a hose clamp or worm clamp to provide an inward clamping force to quickly secure the flexible fitting relative to the grinder
Implementation Method 3
a dust shroud with an adaptive overmolded rubber flexible fitting and clamp arrangement for secure attachment to various grinders, along with a vacuum port adaptable to different hose sizes
Data Source
AI summary
A dust shroud having a shroud body with a vacuum port and a tool connection, the shroud body including a top wall and at least one side wall extending downwardly from about a perimeter of the top wall that defines a dust receiving opening, the shroud body having a top wall opening and the tool connection including a flexible fitting with a flexible fitting base joined to the top wall and extending within the top wall opening, the flexible fitting including a plurality of flexible fingers with a base finger portion and an outer finger portion that extends away from top wall and is selectively with a mounting point of the hand held tool and the flexible fingers allowing selective controlled relative movement between the dust shroud and the hand held tool, the fingers having a finger spacing between adjacent flexible fingers and the outwardly extending flexible fingers having a finger length between the top wall and the distal finger end that is greater than 0.75 inches allowing for selective adjustment and relative movement between the dust shroud and the associated hand held grinder.