Handheld Tool Suction Adapter with Guide Device
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Solution Overview
Problem
Hand-held power tools, such as circular saws, face challenges in chip removal and switching between suction and non-suction modes, with existing solutions requiring removal of suction adapters and risking clogging of tubular connections.
Innovation Solution
Incorporating a guide device with a distinct outlet opening for material removal when no suction device is used, allowing the suction adapter to remain attached to the protective cover, and providing adjustable air supply regulation via a sliding element to prevent clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a suction adapter is provided for chip removal, then chip removal efficiency is improved, but the adapter must be removed to operate without suction and clogging risk increases
Solution Approach 1:
The suction adapter is designed with dual functionality: it serves as both a suction connection device and a material removal guide. The guide device with outlet opening allows the adapter to function as a chip ejection path when suction is not used, eliminating the need to remove the adapter and enabling seamless switching between operating modes.
Solution Approach 2:
The suction adapter is divided into functional sections: a suction connection section for attaching suction devices, and a guide device with outlet opening for material removal. This segmentation allows each part to perform its specific function while the whole assembly remains permanently attached, avoiding clogging and simplifying operation.
2Ease of operation
If the suction adapter is permanently attached to the protective cover, then switching between modes is simplified, but the adapter may impede the machining process
Solution Approach 1:
The suction adapter incorporates a releasable connection mechanism that allows it to be dynamically attached or detached from the protective cover. This dynamic design enables the adapter to remain permanently attached during normal operation for simplified mode switching, while allowing removal when it might impede the machining process, thus providing operational flexibility.
3Device complexity
If the outlet opening is fixed, then the structure is simple, but air supply regulation is limited and clogging may occur
Solution Approach 1:
The outlet opening is designed with an adjustable mechanism (such as a sliding element) that allows the opening size to be dynamically changed. This enables air supply regulation to match different suction device capacities and prevents clogging by adjusting the opening, while maintaining relatively simple structural implementation.
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
Enables efficient chip removal and simplified switching between suction and non-suction modes, ensuring the tool is always ready for use and preventing clogging, regardless of the suction device's presence.
Implementation Method 1
The suction device generates a suction flow that sucks off the material removed via the suction connection section
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A hand-held power tool (1) comprising a tool (6) rotatable about a rotary axis (8) by a drive unit (3), a protective cover (7) at least partially surrounding the tool (6), an outlet opening (12) conveying material removal from the protective cover (7) triggered by the tool (6) from a workpiece to be machined, and a suction adapter (13) connected to the protective cover (7) and having a connection section (21) with a suction opening (22) for connecting a suction device, wherein the suction adapter (13) has a guide device (23) for guiding the material removal and the guide device (23) has an outlet opening (26) different from the suction opening (22).