Dust Collection Cup Port Layout for Better Drill Viewability
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Solution Overview
Problem
Existing dust collection cups for power tools, such as hammer drills, are oversized, which reduces viewability during operation and makes them less efficient.
Innovation Solution
A dust collection cup design that includes a cylindrical attachment and a dust collector with a seal having a through-hole for the bit, and a connection port on the outer surface of the attachment that is radially offset from the seal, allowing for a more compact design and improved viewability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the connection port is located on the outer circumferential surface of the attachment at a position outward in the radial direction from the seal, then the dust collector can be downsized and viewability can be improved, but the connection port positioning becomes more complex
Solution Approach 1:
The connection port is positioned asymmetrically on the outer circumferential surface of the attachment, specifically outward in the radial direction from the seal. This asymmetric positioning allows the dust collector to be downsized while maintaining proper connection functionality, resolving the contradiction between compact size and connection port accessibility.
2Ease of operation
If the dust collector is made larger to accommodate traditional connection port positioning, then connection functionality is maintained, but viewability during operation is reduced
Solution Approach 1:
The connection port is repositioned from a conventional location to one that is outward in the radial direction from the seal on the outer circumferential surface. This dimensional repositioning allows the dust collector to be compact while maintaining connection functionality, thereby improving viewability without sacrificing operational capability.
Data Source
AI summary
A dust collection cup includes a cylindrical attachment to cause a bit to extend through the attachment, a cylindrical dust collector located in front of the attachment to cause the bit to extend through the dust collector, a seal between the attachment and the dust collector and having a through-hole to receive the bit, and a connection port connectable to a dust collection hose and located on an outer circumferential surface of the attachment outward in a radial direction of the bit from the seal and rearward from the seal. The connection port has a distance in the radial direction of the bit from an axis of the attachment to an outermost position longer than a distance in the radial direction of the bit from the axis to a position on the outer circumferential surface of the attachment that is opposite to the outermost position from the axis.