Modular Dust Collection Hood for Variable-Length Tool Bits
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Solution Overview
Problem
Existing dust collecting devices for power tools are inefficient when using bits of varying lengths, as the fixed hood position fails to effectively collect dust, leading to reduced efficiency.
Innovation Solution
A dust collecting device with a modular design that can adapt to different bit lengths by forming a dust collecting part using one or multiple components, allowing for adjustable length configurations through accordion-like expansion or sliding components, ensuring effective dust collection regardless of bit length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the dust collecting hood is fixed at a fixed position, then the structure is simple and easy to manufacture, but the dust collecting efficiency is reduced when using bits of different lengths
Solution Approach 1:
The dust collecting hood is divided into multiple modular sections that can be connected in series. Each section has a substantially cylindrical shape with open ends, and they are joined through fitting parts. This segmentation allows the hood to be assembled in different configurations to match various bit lengths while maintaining a relatively simple manufacturing process for each individual section.
Solution Approach 2:
The dust collecting hood transitions from a fixed, static structure to a dynamic, adjustable configuration. By allowing the hood to be assembled from multiple connectable sections, the overall length and shape can be dynamically adjusted to suit different operational requirements and bit lengths, resolving the contradiction between structural simplicity and adaptability.
2Stability of the object's composition
If the dust collecting hood is fixed at a fixed position, then the structure is stable and simple, but the dust collection efficiency is lowered when longer bits are used
Solution Approach 1:
The hood is segmented into multiple stable cylindrical sections that can be reliably connected. Each section maintains its structural integrity while being joinable to others, allowing the construction of longer hoods for extended bits without compromising the stability of individual components.
Solution Approach 2:
The modular sections are designed with universal fitting parts that allow the same basic component to serve multiple functions and configurations. The same cylindrical section can be used in various positions and combinations to create hoods of different lengths, maintaining structural stability across all configurations while improving dust collection efficiency for different bit lengths.
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.