Hand-held treatment system, hand-held treatment device for a hand-held treatment system, and attachment for a hand-held treatment system
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Solution Overview
Problem
Existing hand-held treatment systems lack safety and user-friendliness, particularly in their electrical components, which can lead to hazardous situations during operation.
Innovation Solution
A hand-held treatment system with a movable treatment part and an electric drive motor system featuring a contact bridge that automatically switches between a hazard and safety position, preventing electrical bridging of interruptions in the hazard position and enabling movement in the safety position, thus enhancing safety and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the treatment part is made accessible to the user in the hazard position, then ease of operation is improved, but safety deteriorates
Solution Approach 1:
The contact bridge acts as an intermediary element that physically connects the attachment to the electrical path. When the attachment is in the hazard position, the contact bridge intentionally fails to bridge the interruption, serving as a mediator that prevents electrical current from reaching the treatment part while still allowing mechanical access. This resolves the contradiction by introducing an intermediate safety mechanism that decouples mechanical accessibility from electrical operation.
Solution Approach 2:
The system performs preliminary safety verification through the contact bridge configuration before allowing operation. The attachment must be correctly positioned in the safety position, which preliminarily ensures that the contact bridge will properly bridge the interruption. This preliminary positioning action prevents hazardous operation by requiring correct attachment installation before the treatment part can be electrically activated.
2Productivity
If the contact bridge automatically bridges the interruption in the safety position, then productivity is improved, but device complexity increases
Solution Approach 1:
The contact bridge performs self-service by automatically bridging the interruption based on its own position relative to the attachment. When the attachment is correctly installed in the safety position, the contact bridge autonomously completes the electrical circuit without requiring external control systems, sensors, or complex control logic. This simple self-service mechanism achieves automatic operation readiness while minimizing added complexity.
Solution Approach 2:
The contact bridge merges the mechanical positioning function with the electrical switching function into a single integrated component. The same physical element that indicates correct attachment positioning also simultaneously closes the electrical circuit. This merging of mechanical and electrical functions into one component achieves automatic operation readiness without proportionally increasing device complexity.
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 system provides a high degree of safety by preventing movement in hazardous conditions and facilitating user-friendly operation by allowing the treatment part to be accessed only in a safe configuration, reducing the risk of accidents and improving handling.
Implementation Method 1
the at least one contact bridge electrically bridges, in particular directly, the at least one, in particular associated, interruption
Data Source
AI summary
A hand-held treatment system includes: a hand-held treatment device and at least one attachment, wherein the treatment device has a movable treatment part and an electric drive motor system for moving the treatment part. The electric drive motor system has at least one electrical path with at least one interruption. The at least one attachment has a contact bridge. The treatment device and the at least one attachment are configured for the spatial arrangement of the at least one attachment from a hazard position into a safety position, which is different from the hazard position, on the treatment device such that by the at least one attachment being in the hazard position, the at least one contact bridge does not electrically bridge the at least one interruption, and by the arrangement of the at least one attachment in the safety position, the at least one contact bridge electrically bridges the at least one interruption.