Articulating Faucet Arm with Friction Bushings
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Solution Overview
Problem
Existing pull-down faucets lack flexibility in positioning the sprayer, while commercial-style faucets are too large for residential use due to their bulky design.
Innovation Solution
A faucet design featuring a base with a pivotable arm system that allows the sprayer to be positioned and secured at various angles and locations, utilizing a waterway with flexible components and friction bushings to maintain position without the need for large spring supports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rigid pull-down spout architecture is used, then the structure is simple and compact, but the user cannot flexibly position and suspend the sprayer to a desired sink location
Solution Approach 1:
The patent applies the dynamics principle by transforming the rigid pull-down spout into an articulating arm assembly with multiple pivot joints. The first arm pivots about a first pivot axis, and the second arm pivots about a second pivot axis, enabling dynamic repositioning of the sprayer nest to various locations over the sink basin while maintaining a compact stored position.
Solution Approach 2:
The articulating arm is segmented into multiple independent sections (first arm and second arm) that can move relative to each other through pivot joints. This segmentation allows each segment to be independently positioned, providing versatile sprayer placement while keeping the overall structure compact when folded.
2Adaptability or versatility
If a commercial style spring support system is used, then the sprayer has high maneuverability across the sink, but the faucet becomes too large for residential use
Solution Approach 1:
The patent extracts the large spring support mechanism from the residential faucet design and replaces it with a compact articulating arm assembly using pivot joints and friction bushings. This removal of the bulky spring system enables high sprayer maneuverability while maintaining a space-efficient footprint suitable for residential kitchens.
Solution Approach 2:
The patent substitutes the mechanical spring support system with an articulating arm mechanism using pivot joints and friction bushings. This mechanical substitution achieves comparable or superior sprayer maneuverability while dramatically reducing the overall faucet volume and eliminating the need for large spring components.
3Ease of operation
If a free-moving sprayer hose is used, then the sprayer has flexibility, but the user cannot securely dock and position the sprayer for precise tasks
Solution Approach 1:
The patent uses friction bushings at the pivot joints to provide adjustable friction resistance, allowing the articulating arm to hold the sprayer nest securely at any positioned angle. This parameter change in friction control enables precise docking and positioning of the sprayer for specific tasks while maintaining operational simplicity.
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
Provides enhanced maneuverability and secure positioning of the sprayer, allowing for efficient use in residential settings with a compact, low-profile design that can be easily adjusted for tasks like filling large pots or reducing water splash during cleaning.
Implementation Method 1
A friction bushing is positioned between the lower sleeve and the pin to resist movement of the arm relative to the hub
Data Source
AI summary
A faucet includes a sprayhead removably supported by a positioning arm. The positioning arm is articulated to provide multiple degrees of freedom.