Rotatable Dust Collection Hose Mount for Power Tools
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Solution Overview
Problem
Conventional dust collecting attachments for electric power tools obstruct operation when used as a handle, requiring the operator to hold a hose, which affects usability and workability, especially when using the tool near walls or in tight spaces.
Innovation Solution
A dust collecting attachment design that allows for flexible hose or pipe placement around the tool's axis, eliminating the need for the operator to hold the hose or pipe, with a changeable member enabling mounting at various positions to accommodate different hand orientations and reduce obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the hose is mounted on the lower side of the tool body, then the dust collecting attachment can be connected, but the operator needs to hold the handle portion together with the hose which affects operability
Solution Approach 1:
The hose mounting position is moved from the lower side to the lateral side of the tool body, changing the spatial dimension of connection. This allows the hose to be positioned away from the operator's hand while maintaining effective dust collection connection.
Solution Approach 2:
The hose is specifically positioned on the lateral side where fingers do not touch, creating a localized arrangement that separates the hose from the operator's gripping area while maintaining overall system functionality.
2Ease of operation
If the hose is mounted on the lateral side of the tool body, then the operator does not need to hold the hose, but depending on the operator's dominant hand it may still be necessary to hold the handle portion together with the hose
Solution Approach 1:
The discharge portion is made changeable and rotatable around the housing axis, allowing dynamic adjustment of hose position. This enables the system to adapt to different operators and their dominant hands, ensuring optimal positioning in all cases.
Solution Approach 2:
The changeable member allows the discharge portion to be mounted at multiple positions around the housing axis, making the dust collecting attachment universally applicable to different operators regardless of their dominant hand.
3Ease of operation
If the hose is positioned to avoid obstruction, then operability improves, but the dust collecting attachment may still obstruct operation close to walls
Solution Approach 1:
The rotatable and changeable discharge portion allows dynamic repositioning of the hose to accommodate different working conditions, including operations near walls or in tight spaces, without increasing overall device complexity.
Data Source
AI summary
A dust collecting attachment that is mounted on a sander includes a suction portion mounted on a portion of a front housing where an output shaft projects, a flexible hose having a front end of the flexible hose connected to the suction portion, a discharge portion connected to a rear end of the flexible hose and a changeable member placed on both a motor housing and the discharge portion. The changeable member allows the discharge portion to be mounted at any position around an axis of the motor housing.