Device for feeding products and method for recording a stock of products

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Solution Overview

Problem

Existing product feeding devices require high structural and energy expenditures for continuous inventory monitoring, necessitating a connection to a power grid.

Innovation Solution

A device with a spring-prestensioned slider equipped with a motion sensor that performs measurements only when the slider moves, using a power storage device and reducing energy consumption by minimizing continuous measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If continuous inventory monitoring is implemented using a sensor at the rear region, then the stock of products can be continuously recorded, but the energy consumption increases and connection to a power grid is required

Engineering Contradiction:
Improveinventory monitoring accuracyVSAvoidenergy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The sensor is activated only periodically when the slider moves to a new position, rather than continuously. The control unit triggers the sensor to record stock information only at these discrete moments when product removal occurs and the slider relocates, thereby significantly reducing energy consumption while maintaining accurate inventory monitoring capability

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent replaces continuous electronic monitoring with an event-triggered measurement system. The mechanical movement of the slider serves as the trigger signal for the sensor, substituting continuous power-intensive electronic surveillance with a passive mechanical-event-based activation mechanism that reduces energy requirements

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If a sensor is provided at the rear region for continuous monitoring, then stock can be recorded, but the structural expenditure at individual compartments is high

Engineering Contradiction:
Improvestock detection capabilityVSAvoidstructural expenditure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The slider serves multiple functions: it mechanically pushes products forward during dispensing and simultaneously acts as a carrier for the sensor and control unit. This multi-functionality eliminates the need for separate sensor mounting structures at each compartment, reducing structural complexity and expenditure

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

Solution Approach 2:

The patent merges the sensor, control unit, and power storage device onto the slider itself, combining multiple functional components into a single integrated moving assembly. This consolidation reduces the overall structural complexity at each compartment while maintaining full stock detection capability

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If measurements are continuously performed to record stock, then accurate inventory data is obtained, but energy consumption is high requiring power grid connection

Engineering Contradiction:
Improvestock recording accuracyVSAvoidpower supply complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces continuous electronic power supply with a mechanical event-triggered system. The physical movement of the slider mechanically triggers the measurement process, eliminating the need for continuous electrical power and complex power grid connections while maintaining accurate stock recording

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system uses its own operational movement (slider displacement) to trigger the measurement function. The slider's natural back-and-forth motion during product dispensing automatically activates the sensor and control unit, making the system self-regulating and eliminating external power infrastructure requirements

Inventive Principle:
Principle #25Self-service

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 allows for reliable stock detection with reduced energy consumption and eliminates the need for complex wiring, enabling efficient and cost-effective inventory monitoring.

Implementation Method 1

a slider pretensioned by a spring rests against one of the products and is moved in the feed direction when a product is removed

Methodology Applied
Scientific EffectSpring force: Spring

Implementation Method 2

the slider pretensioned by a spring comprises a motion sensor by means of which a movement of the slider can be detected

Methodology Applied
Scientific EffectMotion detection: Accelerometer

Implementation Method 3

The sensor for recording the stock of products preferably comprises an optical sensor which carries out a distance measurement

Methodology Applied
Scientific EffectOptical distance measurement: LIDAR

Data Source

PatentUS11244281B2Device for feeding products and method for recording a stock of products
Publication Date: 2022.02.08 POS TUNING GMBH
  • US11244281B2 patent drawing
  • US11244281B2 patent drawing
  • US11244281B2 patent drawing

AI summary

The present invention relates to a device for feeding products, comprising a compartment for storing a plurality of products, on which compartment one or more products can be removed at a removal region, and on the side opposite the removal region a slider pretensioned by a spring rests against one of the products and is moved in the feed direction when a product is removed, wherein a sensor is provided for recording the stock of products, and a method for recording a stock of products on a compartment having a plurality of products.