Hole Saw Suction Attachment for Oscillating Dust Removal
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Solution Overview
Problem
Existing hole saws used with oscillating hand-held power tools face difficulties in effectively removing dust, leading to user and environmental soiling, especially in drywall construction.
Innovation Solution
A suction device with a disk-shaped base body, a fastening section for attachment to the power tool, and a connecting piece for a vacuum cleaner, featuring an inclined connecting piece and axial collar to enhance dust removal, along with radial struts for stability and a passage to prevent dirt entry into the tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a hole saw is used with an oscillating hand-held power tool, then drilling holes in drywall or floor coverings is enabled, but drilling dust cannot be removed effectively leading to user and environmental soiling
Solution Approach 1:
A suction device is introduced as an intermediary component between the hole saw and the workpiece. This suction device includes a base body with a suction opening that faces the hole saw, creating a mediator that captures drilling dust at its source. The suction device connects to a vacuum cleaner through a connecting piece, forming an intermediate system that transports dust away from the work area, thereby resolving the contradiction between enabling hole drilling and preventing dust soiling.
2Object-affected harmful factors
If a suction device is added to remove drilling dust, then dust removal capability is improved, but device complexity increases
Solution Approach 1:
The suction device is segmented into distinct functional components: a base body housing, a suction opening, a connecting piece with specific geometry, and mounting features. This segmentation allows each component to be optimized independently while maintaining overall simplicity. The base body is substantially disk-shaped with minimal internal structure, and the connecting piece is a separate element that attaches to both the suction device and vacuum cleaner, reducing complexity through modular design.
Solution Approach 2:
The suction device is designed with universal mounting features that can attach to various hand-held power tools oscillatingly driven about an oscillation axis. The fastening section includes a fastening element that can secure the suction device to different tool types, making the dust collection system universally applicable rather than tool-specific, thereby reducing overall system complexity through standardization.
3Ease of operation
If the connecting piece is inclined at an angle, then connection to suction apparatus is improved, but manufacturing precision requirements increase
Solution Approach 1:
The connecting piece is designed with a specific inclination angle of 35 degrees relative to the normal perpendicular to the first side of the base body. This parameter change optimizes the connection geometry for ease of operation, allowing the connecting piece to interface properly with standard vacuum cleaner attachments. The 35-degree angle provides optimal accessibility and connection stability without requiring excessive manufacturing precision, as it aligns with common vacuum cleaner hose and adapter geometries.
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 suction device effectively removes drilling dust from both the back and circumference of the hole saw, improving work conditions and preventing soiling, while maintaining tool functionality.
Implementation Method 1
The suction device effectively removes drilling dust from both the back and circumference of the hole saw
Data Source
AI summary
A suction device for a hole saw of a hand-held power tool oscillatingly driven about an oscillation axis. A substantially disk-shaped base body has a first side that faces the hand-held power tool and a second side that faces the hole saw. A fastening section detachably fastens the suction device to an oscillatingly driven hand-held power tool; and a connecting piece connects the suction device to a suction apparatus.