Tool-Free Adjustment Rings for Electrical Installation Devices
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Solution Overview
Problem
Existing electrical/electronic installation devices with rotary switches or controls often require tools to adjust the rotation limitation of the adjustment knob, limiting user accessibility and preventing fine adjustments, such as wallpaper compensation.
Innovation Solution
The design features two rotatably mounted adjustment rings with toothed segments and guide elements, allowing easy adjustment of the rotation limitation without tools and enabling clear visualization of set values, with a toothed ring gear providing a secure and captive holder for the rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If adjustment rings are made filigree and mounted on the underside of the adjustment knob, then the device structure is compact, but the user cannot easily operate them without tools
Solution Approach 1:
The adjustment rings are moved from the underside of the adjustment knob to the front surface of the design cover, changing their spatial position from a hidden location to an accessible location. This dimensional repositioning allows users to easily access and adjust the rings without tools while maintaining the compact internal structure.
Solution Approach 2:
The toothed segments on the adjustment rings engage with the toothed ring gear to provide mechanical coupling and guidance. This intermediary toothed mechanism enables the adjustment rings to be securely held and adjusted in discrete steps, facilitating tool-free operation while maintaining structural integrity.
2Volume of moving object
If the adjustment rings are made filigree and located on the underside of the adjustment knob, then the overall device size is reduced, but wallpaper compensation cannot be performed
Solution Approach 1:
The adjustment rings are repositioned from the underside to the front surface of the design cover, providing sufficient working space for users to perform wallpaper compensation adjustments. This spatial reconfiguration enables fine-grained adjustment operations while maintaining a compact device footprint.
Solution Approach 2:
The toothed segment and ring gear mechanism replaces continuous rotation with discrete stepped adjustment, enabling precise control for wallpaper compensation. This mechanical substitution provides the necessary adjustment granularity for fine-tuning blind positions to compensate for wallpaper thickness.
3Quantity of substance
If the adjustment rings are made filigree and mounted on the underside of the adjustment knob, then material usage is minimized, but users cannot visually see the set values
Solution Approach 1:
The adjustment rings are relocated from the underside to the front surface of the design cover, positioning them in a visually accessible location. This spatial change allows users to clearly see the set values and adjustment positions without obscuring them with the adjustment knob or housing structures.
Solution Approach 2:
The adjustment rings are designed with contrasting colors or visual indicators that enhance visibility against the design cover background. This visual differentiation allows users to easily distinguish the ring positions and read the set values, providing clear visual feedback while using minimal material.
Data Source
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AI summary
An electrical/electronic installation device is proposed, comprising a functional module designed to accommodate the electrical/electronic functional components and a design cover fixed to the functional module. A user-side adjustment knob is assigned to this module, which is intended to influence a functional device located within the functional module via a shaft by means of a rotary actuation. This functional device is intended to control at least one actuator connected to the functional module. Stop elements are provided to limit the rotation of the adjustment knob. These stop elements are located on a first and a second adjustment ring. The adjustment rings each have at least one toothed segment for fine, secure adjustment and are each mounted to rotate 360 degrees.For the purpose of creating an electrical/electronic installation device in which the adjusting rings are arranged and designed in such a way that the user has a simple adjustment option for limiting the rotation of the adjusting knob without the need for tools, the design cover for receiving the adjusting knob has a receiving recess, and a toothed ring with teeth on both sides is arranged in the receiving recess in a rotationally fixed manner, to which the first adjusting ring is rotatably mounted on the outside and the second adjusting ring on the inside, and the two adjusting rings each engage with their at least one toothed segment in the corresponding toothing of the toothed ring.