Pivotable Cover Dust Collection Device for Hand Tools
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Solution Overview
Problem
Existing dust collection devices for hand-held power tools are uncomfortable to use and difficult to handle due to their design, particularly when it comes to emptying the dust collection chamber and maintaining operational efficiency over extended periods.
Innovation Solution
A dust collection device with a removable and pivotably mounted cover that can be easily detached and reattached, featuring fastening means such as hooks and latching projections, and a non-return valve that closes the dust inlet when the particle flow acts on it, ensuring efficient dust collection and easy emptying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dust collection device uses a fixed closed design, then the dust collection space remains sealed, but the device becomes difficult to empty and handle
Solution Approach 1:
The dust collection device is divided into separable components: a base body and a cover that can be detached from each other. The cover can be completely removed from the base body to empty the dust collection chamber, or pivotally mounted to provide access while maintaining connection. This segmentation allows the dust chamber to be sealed during operation yet easily accessed for emptying.
2Ease of operation
If the cover is completely removable, then the dust chamber can be easily emptied, but the connection between cover and base body may become loose or misaligned
Solution Approach 1:
The fastening means are designed to automatically engage when the cover is placed on the base body. Hooks on the cover engage with hook receptacles on the base body, and latching projections automatically latch into position, eliminating the need for manual alignment or complex fastening procedures. The system self-aligns and secures itself through the inherent geometry of the engagement features.
3Reliability
If fastening means are added to secure the cover, then the connection becomes more reliable, but the device complexity increases
Solution Approach 1:
Multiple fastening functions are combined into integrated features. The hooks serve both as structural elements of the cover and as fastening means. The latching projections are formed as integral parts of the cover or base body geometry. This merging reduces the number of separate components while maintaining reliable connection. The fastening means are simplified to basic geometric features rather than complex mechanical assemblies.
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 is designed for improved user comfort and extended operational use by allowing easy access to the dust collection chamber for emptying and maintaining a sealed dust collection space, enhancing the handling and efficiency of dust collection during tool operation.
Implementation Method 1
a non-return valve is arranged on the dust inlet, in particular as a component of the cover, by which the dust inlet can be closed against a particle flow
Implementation Method 2
The fastening means comprise at least one hook and a hook receptacle for receiving the hook
Implementation Method 3
a latching projection and a latching receptacle for receiving the latching projection are provided as an alternative or in addition to the hook
Data Source
Figure 1~4
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Figure 8~10
AI summary
The invention relates to a dust collection device (30) for a hand-held power tool (10), in particular for a saw or a grinding machine, which has a connection device (31) with a base body (32) and a dust inlet (82) arranged at or on the base body (32) for connection to a machine dust outlet (18) of the hand-held power tool (10), so that the machine dust outlet (18) communicates with a dust inlet (82) of the dust collection device and particles (P) flowing out of the machine dust outlet (18) in a particle stream (P) can flow into a dust collection chamber (75) of a dust container (40) of the dust collection device.It is provided that the dust inlet (82) is arranged on a cover (80), the cover being adjustable with respect to the base body (32) between an open position (O) which releases an inlet opening (34) of the dust collection device provided for emptying the dust collection chamber (75) and a closed position (V) which closes the inlet opening (34).