Drinks machine
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Solution Overview
Problem
Existing beverage vending machines with height-adjustable dispensing devices require different forces for upward and downward adjustments due to gravity, leading to reduced ergonomics and a less-than-ideal user experience.
Innovation Solution
A friction device is integrated into the vending machine that applies direction-dependent frictional forces to the dispensing device or rail, ensuring that the same force is required for both upward and downward adjustments, thereby compensating for the weight-induced force difference and enhancing ergonomics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an inhibition mechanism is used to prevent automatic downward displacement of the dispensing device, then the device stability is improved, but the ergonomics and user experience deteriorate due to requiring different forces for upward and downward adjustments
Solution Approach 1:
The friction device generates a frictional force that counteracts the gravitational force acting on the dispensing device. By adjusting the frictional force to match the weight of the dispensing device, the system creates a balanced state where the device remains stable without requiring an inhibition mechanism, and equal forces are needed for upward and downward adjustments.
Solution Approach 2:
The friction device allows dynamic adjustment of the frictional force parameter between the dispensing device and the rail. By changing the frictional force parameter to be direction-dependent, the system compensates for gravity's effect, enabling equal effort in both adjustment directions while maintaining stability.
2Ease of operation
If a friction device with direction-dependent frictional force is introduced, then the ergonomics and handling are improved, but the device complexity increases
Solution Approach 1:
The friction device acts as an intermediary element between the dispensing device and the rail. This mediator component enables direction-dependent frictional force generation through a relatively simple mechanical design, improving ergonomics without requiring complex active control systems or multiple separate mechanisms.
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
The solution improves the handling and perceived quality of the vending machine by ensuring that the same force is needed for both upward and downward adjustments, preventing automatic downward displacement and creating a more ergonomic and high-quality user experience.
Implementation Method 1
a friction device (5) is provided, which interacts frictionally with the rail (3) and is designed in such a way that the frictional force acting on the rail (3) by means of the friction device (5) is dependent on the adjustment direction
Data Source
Figure 1~4
AI summary
The present invention relates to a drinks machine (1) with a dispensing device (2) for dispensing a drink, the dispensing device (2) being arranged on the drinks machine (1) so that it can be adjusted vertically downwards and upwards by means of at least one rail (3). What is essential to the invention here is that the drinks machine (1) has a friction device (5) which interacts with at least one such rail (3) in a frictionally engaged manner, the friction device (5) being designed in such a way that the friction device (5) is applied to the rail (4) acting frictional force is dependent on the adjustment direction (8, 11) of the output device (2). As a result, essentially the same force is required in particular for adjusting the dispensing device (2) upwards and downwards.