Hinged Dust Receptacle for Reliable Power Tool Emptying
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Solution Overview
Problem
Existing collection receptacles for handheld power tools are not easily or reliably emptied, leading to inefficiencies in particle collection and potential particle loss during the emptying process.
Innovation Solution
A collection receptacle design featuring a cup-shaped base part and a pivotable lid part, connected by a hinge, which allows for easy access and emptying without the need to uncouple from the power tool, along with a filter mechanism to separate particles from air, and a securing mechanism to maintain closure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the collection receptacle is designed with a traditional enclosed structure, then the collection volume is fully enclosed and secure, but the emptying process becomes complex and unreliable
Solution Approach 1:
The collection receptacle is divided into a cup-shaped base part and a separate lid part that can be moved independently. This segmentation allows the lid to be opened for emptying while the base remains attached to the power tool, simplifying the emptying process while maintaining structural integrity during operation.
Solution Approach 2:
The lid part is designed to be movable rather than fixed, allowing it to transition between closed (during operation) and open (during emptying) positions. This dynamic design enables easy access to the collection volume for emptying without requiring complete disassembly of the receptacle.
2Ease of operation
If the lid part is positioned on the first or second side of the receptacle shell, then access to the collection volume is improved, but particle loss during emptying increases
Solution Approach 1:
The lid part is positioned on the third side of the receptacle shell, perpendicular to the first and second sides. This spatial arrangement allows the lid to open in a direction that does not interfere with the inlet port or outlet, enabling access to the collection volume while maintaining proper particle flow paths and minimizing particle loss.
3Loss of substance
If the collection receptacle is designed for easy emptying, then particle loss is minimized, but the structural integrity and secure closure are compromised
Solution Approach 1:
The lid part is designed with a secure closure mechanism that ensures the collection volume is fully enclosed during operation before emptying begins. This preliminary secure closure prevents particle loss during normal operation, while the movable design allows easy opening when emptying is required.
Data Source
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AI summary
A collection receptacle (14) for collecting workpiece particles is described. The collection receptacle (14) comprises a receptacle shell (22), an inlet port (26) provided on a first side (24) of the receptacle shell (22) and an outlet provided on a second side (30) of the receptacle shell (22). The receptacle shell (22) delimits a collection volume of the collection receptacle (14). The inlet port (26) is configured for receiving a mixture of air and workpiece particles. The outlet is configured for allowing air to leave the collection volume delimited by the receptacle shell (22). The receptacle shell (22) comprises a cup-shaped base part (110) comprising the first side (24) and the second side (30). Moreover, the receptacle shell (22) comprises a lid part (112) movably connected to the base part (110). The lid part (112) can selectively assume an open position in which the collection volume is accessible and a closed position in which the collection volume is fully enclosed by the base part (110) and the lid part (112). Additionally, a handheld power tool assembly is presented. The handheld power tool assembly comprises a handheld power tool and such a collection receptacle (14).