Connector for coupling a particle outlet of a handheld machine tool to a particle receiving device, handheld machine tool, handheld machine tool assembly, and method
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Solution Overview
Problem
Existing connectors for coupling a particle outlet of a handheld machine tool to a particle receiving device face a trade-off between easy angular adjustment and reliable positioning, with non-adjustable connectors providing secure but inflexible positioning and adjustable connectors compromising on stability.
Innovation Solution
A connector with a resilient coupling system allowing angular adjustment through engagement geometries and counter-geometries, combined with a locking mechanism that can be selectively engaged to lock or release the angular position, ensuring easy adjustment and secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a connector provides angular adjustability through resilient coupling, then ease of operation is improved, but reliability of positioning deteriorates
Solution Approach 1:
The connector employs a resilient coupling that allows the engagement section to move dynamically between a locked state (when engagement protrusions engage with engagement recesses) and an adjustable state (when the resilient material allows relative movement). This dynamic behavior enables the connector to switch between providing stable positioning and allowing angular adjustment, resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The resilient coupling changes the physical state of the engagement section by allowing elastic deformation. When force is applied, the resilient material deforms to permit angular adjustment; when the adjustment is complete and engagement features mate, the material returns to its original state, locking the position. This parameter change enables both adjustability and stability.
2Reliability
If a non-adjustable connector is used, then reliability of positioning is improved, but adaptability deteriorates
Solution Approach 1:
The resilient coupling creates a dynamic system that can adapt between fixed and adjustable states. The engagement section remains stable during normal operation (providing reliability) but can be deliberately adjusted when needed (providing adaptability), thus resolving the contradiction between these two requirements.
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 connector allows for simple and reliable angular positioning of the particle receiving device relative to the handheld machine tool, enhancing operational safety by preventing interference and maintaining desired orientations.
Implementation Method 1
the engagement section is resiliently coupled to the body section
Data Source
AI summary
A connector for coupling a particle outlet of a handheld machine tool to a particle receiving device is described. The connector has a tube-shaped inlet portion extending along an inlet axis and a tube-shaped outlet portion extending along an outlet axis. The tube-shaped outlet portion is for coupling to the particle receiving device. The inlet portion has a body section and an engagement section. The engagement section is resiliently coupled to the body section. The engagement section has an engagement geometry for mating with an engagement counter-geometry on the particle outlet, such that a positive locking effective along a circumferential direction is provided between the engagement geometry and the engagement counter-geometry. Moreover, a lock is coupled to the inlet portion. The lock is for selectively blocking a movement of the engagement section relative to the body section. Moreover, a handheld machine tool, a handheld machine tool assembly, and a method for operating a handheld machine tool assembly are presented.