Switch Device With Elastic Connecting Layer and Side Sensors

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Solution Overview

Problem

Existing input devices lack efficiency in operation and versatility for use in industrial and logistical applications, particularly in warehouse management and material flow systems, where they are needed for both inputting and outputting logistical data.

Innovation Solution

A switching device with a plate-shaped base body and actuating part, featuring a connecting device made of elastic material and sensors for detecting position changes, allowing for efficient operation as an input device with a display for menu-driven selection of tasks and interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional input device is used in industrial applications, then basic input functions are provided, but efficiency and versatility for both inputting and outputting logistical data are insufficient

Engineering Contradiction:
Improveversatility for input and output operationsVSAvoidcomplexity of switching device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The switching device is designed to perform multiple functions: it serves as both an input device for receiving user interactions and an output device for displaying logistical data through the integrated display unit. This multi-functionality allows a single device to replace separate input and output devices, enhancing versatility while managing complexity through integration

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines the switching mechanism, sensor system, and display unit into a single integrated device. The display unit is positioned on the actuating part, merging the output function directly with the input mechanism, allowing simultaneous input and output operations in one device structure

Inventive Principle:
Principle #5Merging (Combining)

2Measurement precision

If sensors are positioned to detect position changes accurately, then precise position detection is achieved, but the device structure becomes more complex

Engineering Contradiction:
Improveprecision of position detectionVSAvoidcomplexity of sensor arrangement
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The sensor is positioned specifically between the base body and the actuating part to detect local position changes at the critical interface where actuation occurs. This localized sensing approach achieves precise position detection for the actuating surface while avoiding unnecessary sensors in other areas, maintaining structural simplicity

Inventive Principle:
Principle #3Local quality

3Reliability

If an elastic connecting device is used to provide resilience, then operational resilience is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improveresilience of connecting deviceVSAvoidprecision of connecting device attachment
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The connecting device is made from elastic material, changing the material parameter from rigid to flexible. This elasticity provides inherent resilience and tolerance to manufacturing variations, as the elastic material can deform to accommodate minor misalignments while maintaining reliable connection between the base body and actuating part

Inventive Principle:
Principle #35Parameter changes

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

Enables efficient input and output of logistical data, enhancing user interaction and task management in industrial settings through precise position detection and resilient operation.

Implementation Method 1

a connecting device (30) with at least one connecting layer (31) made of an elastic material which is attached to an inner area (20c) of the connection surface (20b) of the actuating part (20)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

at least one sensor (41, 42, 43, 44) which are located between the base body (10) and the actuating part (20) and are located to the side of the connecting device (30) as seen in the thickness direction (Z), so that with each sensor (41, 42, 43, 44) in each case a position of a region of the second surface located on this area in the thickness direction (Z) can be detected

Methodology Applied
Scientific EffectPosition detection:

Data Source

PatentEP3108339B1Switch device, use of the switch device, operating system, and operating method
Publication Date: 2020.03.18 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
  • EP3108339B1 patent drawingFigure 1~3
  • EP3108339B1 patent drawingFigure 4
  • EP3108339B1 patent drawingFigure 5~8

AI summary

The invention relates to a switch device (1), which can be operated from an actuation side (S1), the switch device (1) having: a plate-shaped main body (10); a plate-shaped actuation part (20); a connection device (30), which is arranged between the main body (10) and the actuation part (20) and consists of an elastic material; at least one sensor (41, 42, 43, 44), which is arranged between the main body (10) and the actuation part (20) and is arranged to the side of the connection device (30) viewed in the thickness direction (Z), such that each sensor (41, 42, 43, 44) can be used to detect a position of one region, arranged on said sensor, of the second surface in the thickness direction (Z). The invention further relates to a use of the switch device (1), to an operating system, and to an operating method.