Adaptive Dust Collecting Device for Power Tool Bits
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Solution Overview
Problem
Existing dust collecting devices are inefficient when used with power tools that employ bits of varying lengths, as the fixed position of the dust collecting hood leads to reduced dust collection efficiency.
Innovation Solution
A dust collecting device that can adapt to different bit lengths by using a modular design with interchangeable components, allowing the dust collecting part to change length through accordion-like expansion or sliding, ensuring effective dust collection regardless of the bit length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the hood front end is fixed at a fixed position with respect to the tool body, then the structure is simple, but the dust collecting efficiency is lowered when longer bits are used
Solution Approach 1:
The dust collecting part is designed to be movable along the tool bit in the axial direction, allowing it to dynamically adjust its position according to the bit length. This resolves the contradiction by transforming the fixed hood structure into a dynamic one that can maintain optimal dust collection efficiency regardless of bit length variations.
Solution Approach 2:
The dust collecting part is divided into a movable section and a fixed section, where the movable section can slide along the tool bit. This segmentation allows the dust collecting part to adapt to different bit lengths while maintaining a relatively simple overall structure, thus resolving the contradiction between structural simplicity and collection efficiency.
2Productivity
If the dust collecting part is made adjustable to match different bit lengths, then the dust collecting efficiency is improved, but the device complexity increases
Solution Approach 1:
The dust collecting part incorporates a movable section that can slide along the tool bit in the axial direction, providing adjustability to match different bit lengths. This dynamic design improves dust collecting efficiency while keeping the adjustment mechanism simple, thus balancing productivity improvement with acceptable device complexity.
Solution Approach 2:
The movable section is designed to be easily adjustable by the user without requiring complex mechanisms or tools. The user can manually position the movable section according to the bit length, making the system self-adjusting and avoiding the need for complex automated adjustment mechanisms, thereby improving efficiency while limiting complexity increase.
3Adaptability or versatility
If multiple dust collecting part components are connected to form different lengths, then the adaptability to different bit lengths is improved, but the manufacturing complexity increases
Solution Approach 1:
The dust collecting part is divided into multiple identical or similar components that can be connected in series to achieve different lengths. This segmentation improves adaptability to different bit lengths while simplifying manufacturing, as the same component design can be mass-produced and then assembled in different configurations, reducing overall manufacturing complexity.
Solution Approach 2:
The dust collecting part components are designed with universal connection features that allow them to be used in various combinations. Each component can function independently or be connected with others, providing multi-functionality and adaptability while maintaining a standardized manufacturing process for each component, thus improving versatility without significantly increasing manufacturing complexity.
Data Source
AI summary
It is an object of the invention to provide a technique for adapting to the length of a tool bit mounted to a power tool when tool bits of different lengths are selectively used by replacement to perform an operation, in a dust collecting device for collecting dust generated by operation of the power tool. A dust collecting device 210 is attached to a power tool 101 and collects dust generated by operation. The dust collecting device 210 includes a dust collecting part that covers a tool bit 119 over a predetermined range in the axial direction and collects dust generated by operation. The dust collecting part is formed in one of a first form and a second form which is arbitrarily selected. In the first form, the dust collecting part is formed by a dust collecting part component 221 which has a tool bit covering part 223 having a predetermined inside diameter and a fitting part 227 connected to the tool bit covering part 223, while, in the second form, the dust collecting part is formed by connecting a plurality of the dust collecting part components 221 via the fitting part 227 in the axial direction.