Glass rinser spin stop
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Solution Overview
Problem
Glass rinsers in the beverage dispensing industry are difficult to install due to the need to prevent the shank from rotating during nut tightening, often requiring additional tools and risking damage to the shank.
Innovation Solution
A glass rinser apparatus with a shank having a flat portion to prevent rotation, coupled with a drip tray hole of matching shape, allowing the nut to be tightened without manual or tool-based stabilization of the shank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shank is threaded to engage with a nut for securing the glass rinser, then the glass rinser can be firmly mounted, but the shank must be prevented from rotating during nut tightening, requiring additional tools and increasing installation difficulty
Solution Approach 1:
The shank is designed with an asymmetric cross-section featuring a flat portion, which prevents rotation when engaged with a corresponding asymmetric hole in the drip tray. This asymmetric geometry allows the nut to be tightened without requiring external tools to hold the shank stationary, resolving the contradiction between mounting firmness and installation ease
Solution Approach 2:
The asymmetric hole in the drip tray acts as an intermediary element between the shank and the nut. It engages with the flat portion of the shank to prevent rotation, serving as a mediator that enables single-handed nut tightening while maintaining secure mounting
2Ease of operation
If tools such as vice grips or channel lock pliers are used to hold the shank stationary during nut tightening, then the shank rotation is prevented, but the shank may be damaged and the installation space requirement increases
Solution Approach 1:
The asymmetric design of the shank with its flat portion and the corresponding asymmetric hole eliminates the need for external clamping tools. The built-in anti-rotation mechanism prevents shank damage by distributing forces through the engaged surfaces rather than concentrating them at clamp contact points
Solution Approach 2:
The shank and drip tray hole are designed to self-stabilize during assembly. The asymmetric geometry automatically prevents rotation when the nut is tightened, making the system self-servicing and eliminating the need for external tools that could cause damage
3Adaptability or versatility
If the shank is located in a tight space, then the glass rinser can be installed in compact areas, but using two hands and additional tools to tighten the nut becomes difficult
Solution Approach 1:
The asymmetric shank design with flat portion and corresponding hole enables single-handed operation. The user can stabilize the asymmetric hole with one hand while tightening the nut with the other, or even tighten the nut with one hand while the asymmetric geometry prevents rotation, making the installation feasible in tight spaces
Solution Approach 2:
The built-in anti-rotation feature makes the system self-stabilizing, eliminating the need for a second hand or external tools to hold the shank. This self-service capability allows installation in compact areas where tool manipulation would be difficult
Data Source
AI summary
A glass rinser apparatus is provided. The glass rinser apparatus may include a spray nozzle configured to output a liquid, a shank configured to be coupled at a first end to the spray nozzle, and to transmit the liquid to the spray nozzle, and a nut configured to be coupled to the second end of the shank. The shank may be shaped so that the shank does not rotate when the nut is coupled to the second end of the shank. The cross section of the shank may be substantially circular, and may include at least one flat portion.