Adjustable Bellows Dust Collection for Drill Presses
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Solution Overview
Problem
Existing dust collection systems for power tools, such as drill presses, are inefficient due to significant spatial separation between the vacuum hose intake and the drill bit, leading to incomplete dust and debris removal, which can create health hazards from airborne particulates.
Innovation Solution
A debris removal device featuring a variable length tubular bellows with bi-stable pleats that can be adjusted to position the vacuum intake close to the drill bit, ensuring efficient debris collection without obstructing the user's view or requiring external force to maintain position, and a snap-fit connection for easy installation and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vacuum hose is positioned away from the drill bit, then the device structure is simpler and easier to operate, but dust collection efficiency deteriorates due to spatial separation
Solution Approach 1:
The bellows component provides dynamic adjustability, allowing the vacuum intake to be positioned at varying distances from the drill bit. The bellows can be compressed or extended to optimize the distance between the vacuum intake and dust generation point, thereby improving dust collection efficiency while maintaining ease of operation through simple compression without requiring external force to maintain position
Solution Approach 2:
The invention changes the parameter of distance between vacuum intake and drill bit from fixed to variable. By using a bellows structure, the intake distance can be adjusted based on different drilling depths and configurations, optimizing dust collection efficiency for various operating conditions while keeping the system easy to operate
2Productivity
If the vacuum intake is positioned close to the drill bit, then dust collection efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The bellows acts as an intermediary component between the vacuum hose and the drill bit area. It provides a flexible connection that allows close positioning of the vacuum intake to the dust generation point without creating a rigid, complex structural arrangement. The bellows absorbs positioning adjustments and maintains a simple overall device structure
Solution Approach 2:
The bellows structure uses a flexible accordion-like component that can be compressed and extended. This flexible element allows the vacuum intake to be positioned close to the drill bit for efficient dust collection while maintaining a simple, adaptable structure that does not require complex rigid support mechanisms
3Device complexity
If a fixed length bellows is used, then the device structure is simpler, but adaptability to different drill bits and tools deteriorates
Solution Approach 1:
The bellows provides dynamic length adjustment capability, allowing the same device to adapt to different drill bit lengths, tool configurations, and drilling depths. The user can compress or extend the bellows to achieve optimal positioning for various applications, providing high adaptability without increasing device complexity
Solution Approach 2:
The variable length bellows design makes the vacuum device universally applicable to different drill presses, drill bits, and drilling configurations. The same device can be adjusted to work effectively with various tool setups, providing multi-functionality and broad adaptability while maintaining a simple bellows-based structure
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 device provides more efficient dust removal by positioning the vacuum intake near the drill bit, reducing airborne debris and allowing hands-free operation, while its adjustable length and easy maintenance facilitate use with various drill bits and tools.
Implementation Method 1
The bellows includes a plurality of bi-stable pleats that are moveable between and stationarily positionable in each of an expanded position and a compressed position for permitting the user to vary the length of the bellows between, and fixedly position the length of the bellows at a plurality of different lengths.
Data Source
AI summary
A drill removal device is provided for use with a scratch generating tool having a stationary member and a scrap generating workpiece engaging member that is moveable with respect to the stationary member. The debris removal device includes a bracket having a stationary member receiving portion for coupling the bracket to the power tool stationary member. A vacuum receiving portion of the bracket is provided for coupling the bracket to a vacuum source, and a passageway portion is provided for placing the stationary portion in fluid communication with the vacuum source. A variable tube bellows is configured for placement adjacent to the workpiece engaging member. The bellows includes a plurality of bi-stable pleats that are moveable between and stationarily positionable in each of an expanded position and a compressed position for permitting the user to vary the length of the bellows between, and fixedly positioned the length of the bellows at a plurality of different lengths.