Drain Cover Alignment via Positive Engagement
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Solution Overview
Problem
Existing drain cover devices with non-rotationally symmetrical contours require laborious manual alignment, which complicates handling and increases the risk of unintentional misorientation, especially in water collection devices with flat or cuboid designs.
Innovation Solution
Incorporating an alignment specification element with a non-rotationally symmetrical outer surface that can be securely fixed in the guide device, paired with an alignment guide element on the cover element, allowing for easy specification of the desired orientation through positive engagement, enabling simple and reliable alignment without rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a non-rotationally symmetrical cover element is used to match the contour of a cuboid sink, then the aesthetic appearance is improved, but the handling and alignment become more difficult
Solution Approach 1:
The alignment specification element on the guide device and alignment guide element on the cover element work together to enable self-alignment. When the cover element is inserted into the guide device, the positive engagement between these elements automatically orients the cover element in the desired circumferential direction without requiring manual alignment by the user.
Solution Approach 2:
The alignment specification element and alignment guide element act as intermediary features that mediate between the cover element and the guide device. These elements provide a mechanical interface that ensures proper orientation during installation, eliminating the need for manual alignment while maintaining the non-rotationally symmetrical contour of the cover element.
2Shape
If manual alignment is required for non-rotationally symmetrical cover elements, then the aesthetic matching is achieved, but the risk of misorientation increases
Solution Approach 1:
The self-alignment mechanism through positive engagement between the alignment specification element and alignment guide element ensures that the cover element automatically assumes the correct orientation during installation, eliminating human error and ensuring consistent, reliable orientation across all installations.
Solution Approach 2:
The alignment specification element has a non-rotationally symmetrical outer circumferential surface that corresponds to the asymmetrical contour of the cover element. This asymmetry ensures that only one specific orientation is possible when the elements engage, preventing misorientation while maintaining the aesthetic matching of the cover element to the sink contour.
3Ease of operation
If a rotationally symmetrical cover element is used, then the handling is simplified, but the aesthetic matching with cuboid sinks is compromised
Solution Approach 1:
The alignment function is segmented from the cover element itself and implemented through separate alignment specification element and alignment guide element. This segmentation allows the cover element to maintain its non-rotationally symmetrical aesthetic contour while the alignment function is provided through distinct mechanical features that guide proper installation.
4Manufacturing precision
If alignment specification elements are added to the guide device, then the alignment precision is improved, but the device complexity increases
Solution Approach 1:
The alignment specification element is a localized feature on the guide device that provides alignment functionality without requiring complex mechanisms throughout the entire device. By concentrating the alignment function in a specific local area through the positive engagement between the alignment specification element and alignment guide element, high alignment precision is achieved with minimal increase in overall device complexity.
Data Source
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AI summary
A drain cover device (9) for a drain opening (10) of a water drain comprises a cover element (7) with a cover plate (16) covering the drain opening (10) and a guide pin (18) projecting from an underside (17) of the cover plate (16). The drain cover device (9) has an alignment element (19) with an outer circumferential surface (23) that is not rotationally symmetrical relative to the direction of displacement and which can be fixed in the drain opening (10) on a guide device for the guide pin (18) in a rotationally secure manner.The cover element (7) has an alignment guide element (21) on its underside (17), wherein the alignment guide element (21) has an inner contour (22) adapted to the alignment presupposition element (19), so that a circumferentially possible alignment of the cover element (7) stored in the drain opening (10) of the water drain can be predetermined by a positive engagement of the alignment guide element (21) of the cover element (7) with the alignment presupposition element (19) fixed in the drain opening (10) of the water drain.