Articulated Sanding Head Hose Layout for Easier Wall Positioning
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Solution Overview
Problem
The operation of hand-held sanding machines is inconvenient due to difficulties in positioning the machining head relative to wall surfaces, primarily because of the long grip rod, which makes it challenging to guide the sanding head along surfaces effectively.
Innovation Solution
The suction connection is rearranged between the end region of the handle element and the articulated-connection region of the machining head, with an elongated design and a positioning spring arrangement to facilitate easier positioning and mobility of the machining head, allowing for a more flexible and protected suction hose configuration that enhances the tool's usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the suction connection is arranged at the front area of the machining head facing away from the handle element, then the suction hose can be longer and reach further, but the suction hose is more exposed to damage and the machining head positioning becomes more difficult
Solution Approach 1:
The suction connection acts as an intermediary element positioned between the handle element and the articulated-connection region. This intermediate positioning allows the suction hose to be routed through a protected path along the handle element rather than extending freely from the front of the machining head, reducing exposure to damage while maintaining suction functionality
Solution Approach 2:
The suction connection is repositioned from the front dimensional plane of the machining head to an intermediate position along the longitudinal axis between the handle and machining head. This spatial reconfiguration changes the hose routing path from a forward extension to a protected intermediate route, reducing vulnerability to damage
2Ease of operation
If the suction connection is arranged between the end region of the handle element and the articulated-connection region, then the suction hose is better protected and easier to handle, but the hose routing becomes more complex
Solution Approach 1:
The handle element serves multiple functions: it provides the gripping function, transmits suction flow, and acts as a protective conduit for the suction hose. By routing the hose along the handle element, the handle structure itself becomes a multi-functional component that simplifies overall system configuration despite the intermediate positioning of the suction connection
3Length of moving object
If the suction connection is repositioned to an intermediate location, then the suction hose length can be reduced and protection improved, but the suction flow path becomes more indirect
Solution Approach 1:
The suction hose is designed with flexible routing capabilities that adapt to the intermediate positioning of the suction connection. The hose can dynamically accommodate the changed path geometry while maintaining adequate flow characteristics, balancing the reduced length against the more indirect route through the handle element region
Data Source
AI summary
A hand-held machine tool having a, in particular rod-shaped, handle element for an operator to grasp and having a machining head, which is movably mounted on the handle element by means of a joint assembly and which has an electric drive motor for driving a tool holder for holding a machining tool, wherein a bottom side of the handle element and a machining side of the machining head face a workpiece in a base position of the machining head, wherein the joint assembly is connected to the machining head in an articulated-connection region of the machining head, wherein a flexible suction hose for conducting a suction flow from the machining head to the handle element extends between the handle element and the machining head, which suction hose is fastened to an end region of the handle element by means of a first hose end and to a suction connection of the machining head by means of a second hose end.