Suction hose connecting piece
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Solution Overview
Problem
The suction hose connection piece for hand-held power tools tends to detach easily due to limited frictional hold, disrupting the work process, especially when operating tools like saws along guide rails.
Innovation Solution
Incorporating flexible base material with strategically placed stiffening elements, such as strip-shaped or lamellar structures, that are parallel or angled to the longitudinal axis, to enhance resistance to bending and kinking, allowing for better plugging and stability during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the suction hose connection piece relies on frictional connection to be held in the hand-held power tool, then the structure is simple and easy to assemble, but the holding force is insufficient and the suction hose can become detached easily
Solution Approach 1:
The connection piece is divided into a base material and embedded stiffening elements, creating a composite structure where each component serves a specific function: the base material provides flexibility for assembly while the stiffening elements provide structural stability to prevent detachment
Solution Approach 2:
The connection piece uses a composite structure combining a flexible base material with rigid stiffening elements (such as glass fibers or reinforcement ribs) embedded within it, creating a material system that simultaneously exhibits both flexibility for easy assembly and rigidity for secure holding
2Ease of operation
If the pipe section is made completely flexible to allow easy plugging, then the connection is easy to make, but the pipe section is prone to kinking and bending
Solution Approach 1:
The connection piece has non-uniform structural properties: the plug-in section maintains higher flexibility for easy insertion while the main body contains stiffening elements that prevent kinking, creating different mechanical characteristics in different regions of the same component
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 solution provides a more stable and resistant suction hose connection, reducing the likelihood of detachment and improving operational convenience by ensuring a secure fit between the connection piece and the hand-held power tool.
Implementation Method 1
the stiffening material having a longitudinal shape, for example having strip-shaped stiffening elements, ensures that the pipe section cannot be bent as much with respect to its longitudinal direction
Implementation Method 2
The connecting piece yields, so that it is held in or on the suction hose connection of the hand-held power tool, for example by friction
Data Source
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AI summary
The invention relates to a suction hose connecting piece (10) for a suction hose (100) for producing a flow connection, particularly from a machine tool to a vacuum cleaner, said connecting piece (10) comprising a tubular body (11) with a circumferential wall that delimits a flow channel, and a plug section (50) which is arranged on said tubular body (11) so as to produce a plug connection with a mating connecting piece, it being possible to plug said connecting piece (10) and mating connecting piece one onto the other. According to the invention, said connecting piece (10) comprises a tubular section (35) which has the structure of a multi-component section and has a longitudinal axis (L), at least one reinforcement element (21), which has a longitudinal design and consists of a reinforcement material that is harder and/or more tension-resistant and/or more bending-resistant and/or has a greater rigidity than a tubular section (35) base material which forms a first component, being embedded as a second component into said base material.