Indicator Device Sliding Members Stock Refill Monitoring

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Solution Overview

Problem

In manufacturing and assembly processes, frequent component usage leads to mixing and stock management issues, resulting in component residue, damage, and batch tracing difficulties due to inadequate inventory control and mixing of different batches.

Innovation Solution

An indicator device that clearly signals when the upper loading chamber of a dispensing device needs refilling and confirms when the refilling action has been taken, using sliding members and optional electronic tags to prevent incorrect movement and facilitate non-visual status monitoring.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If lidded trays or bins are used to prevent mixing of components, then component mixing is reduced, but it becomes difficult to monitor stock levels and manage refilling efficiently

Engineering Contradiction:
Improvecomponent mixing preventionVSAvoidstock level monitoring
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The system enables automatic stock level monitoring through sensors that detect when components are low without requiring manual inspection. The indicator device automatically signals when refilling is needed, allowing the system to monitor itself rather than requiring human intervention for stock checks.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The indicator device provides visual feedback (lights or displays) that communicates stock levels to operators. When components are low, the system generates a signal that is immediately visible, creating a feedback loop that informs operators when refilling is necessary without requiring them to open lids and manually check stock levels.

Inventive Principle:
Principle #23Feedback

2Quantity of substance

If manual stock monitoring and refilling is performed, then stock levels can be maintained, but component residue accumulates at the base of trays and components may be damaged

Engineering Contradiction:
Improvestock level maintenanceVSAvoidcomponent damage and residue
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The system triggers refilling actions before components are completely depleted by detecting low stock levels in advance. The indicator device signals when components are running low, allowing operators to refill before the tray is completely empty, preventing the accumulation of residue and potential damage to components that would occur with manual monitoring.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual mechanical monitoring (opening lids, visually inspecting stock levels) with an automated sensor-based detection system. This substitution eliminates the need for operators to physically handle components during monitoring, reducing the risk of damage and residue accumulation from improper handling.

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

3Productivity

If different batches of components are mixed together to maintain stock levels, then continuous supply is ensured, but batch tracing becomes impossible when component failures occur

Engineering Contradiction:
Improvecontinuous supplyVSAvoidbatch tracing capability
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system divides the stock management into discrete, traceable units by maintaining separate storage locations for different batches. Each batch can be independently monitored and tracked, allowing the system to maintain continuous supply through organized batch management rather than mixing, thereby preserving batch tracing capability while ensuring productivity.

Inventive Principle:
Principle #1Segmentation

4Productivity

If a large stock is maintained to ensure continuous production, then production continuity is maintained, but the likelihood of component damage increases and batch tracing becomes difficult

Engineering Contradiction:
Improveproduction continuityVSAvoidcomponent damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The sensor-based monitoring system detects low stock levels before complete depletion occurs, triggering timely refilling actions. This preliminary detection ensures production continuity by preventing stockouts while allowing operators to refill in controlled batches rather than maintaining excessively large stocks, thereby reducing component damage risks from prolonged storage.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2673762B1Indicator device
Publication Date: 2021.07.07 CLARKE STEPHEN WILLIAM
  • EP2673762B1 patent drawingFigure 1(a)~1(c)
  • EP2673762B1 patent drawingFigure 2~4(d)
  • EP2673762B1 patent drawingFigure 5

AI summary

An indicator device comprises a first slide member (22) mounted on a planar base (1). The first slide member (22) is displaceabie between a first position in which it reveals a first status indicating area (26) indicative of a first condition or state and a second position in which it reveals a second status indicating area (28) indicative of a second condition or state. A second slide member (30) is mounted on the base (10) and is displaceabie into and across the path of the first indicator member (22) when the first indicator member is in the first position, to inhibit displacement of the first indicator member. The second indicator member (30) is displaceabie between a first position in which it does not inhibit the displacement of the first indicator member (22) and a second position in which it inhibits the displacement of the first indicator member to its second position. The device may also be provided with one or more RFID tags (80, 82, 84) to permit remote monitoring of the status of the device. The device can be used, for example, in conjunction with a dispenser (60) to provide an indication of when stock needs to be reordered and whether reordering of the stock has taken place.