Faucet Head Alignment Coupling for Asymmetrical Spray Heads
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Solution Overview
Problem
Faucets with asymmetrical spray heads often misalign when re-docking, disrupting the aesthetic design and functionality, as existing pull-back systems fail to ensure consistent alignment.
Innovation Solution
Incorporating an alignment coupling with a projection and tapered groove mechanism within the faucet body and spray head, allowing the spray head to automatically align and dock reliably, preserving the aesthetic and optimizing positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a typical pullback system is utilized for retraction, then the spray head can be retracted back toward the docked position, but the asymmetrical head can dock with the faucet body in a variety of ways, most of which are positions that are misaligned with the faucet body
Solution Approach 1:
The patent introduces an intermediary alignment mechanism consisting of a tapered groove and a projection. The tapered groove is formed in the spray head and the projection is formed in the faucet body (or vice versa). This intermediary geometric feature acts as a mediator that guides the spray head into the correct aligned position during retraction, resolving the contradiction between easy retraction and precise alignment.
Solution Approach 2:
The patent employs a tapered groove with a curved, conical surface rather than a straight linear guide. This curved geometry allows the spray head to smoothly transition into the docked position while being passively guided into alignment. The tapered shape provides a self-aligning mechanism that works with the natural motion of retraction, maintaining ease of operation while ensuring precise alignment.
2Shape
If an asymmetrical spray head is used to achieve a particular stylistic look, then the aesthetic appearance is improved, but it creates a problem when re-docking the faucet head with the faucet body as it can dock in various misaligned positions
Solution Approach 1:
The alignment mechanism with tapered groove and projection serves as an intermediary that reconciles the asymmetrical shape requirements with reliable docking. The geometric features provide a unique fitted position that ensures the asymmetrical spray head docks reliably in the correct orientation, preserving both aesthetic appearance and docking reliability.
Solution Approach 2:
The patent explicitly utilizes asymmetry in the alignment features themselves. The tapered groove and projection are designed with specific asymmetric geometries that complement the asymmetrical spray head design. This allows the asymmetric aesthetic requirements to be maintained while the asymmetric alignment features ensure reliable and consistent docking in the correct position.
3Ease of operation
If a pull-down functionality is implemented to allow spray head detachment, then ease of manipulation is improved, but consistent alignment upon re-docking becomes difficult to achieve
Solution Approach 1:
The tapered groove and projection form an intermediary alignment system that bridges the detachment and re-docking operations. This mechanism ensures that regardless of how the spray head is manipulated during use, it will consistently return to the correct aligned position when re-docked, resolving the contradiction between manipulation ease and alignment consistency.
Solution Approach 2:
The alignment mechanism is designed to be self-aligning during the retraction process. The tapered geometry automatically guides the spray head into the correct position without requiring user intervention or additional alignment steps. This self-service alignment maintains ease of operation while ensuring consistent positioning.
Data Source
AI summary
An alignment coupling for a faucet includes a first alignment element positionable within a faucet body. The first alignment element has a first alignment feature. The first alignment feature includes one of a projection and a tapered groove. The alignment coupling includes a second alignment element that is movable with respect to the first alignment element. The second alignment element has a second alignment feature. The second alignment feature includes the other of the projection and tapered groove. The tapered groove includes walls that extend toward each other, and wherein the walls guide the projection to a narrowest portion of the tapered groove.