Dual-Latch Access Panel Locking for Vibration-Safe Release
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Solution Overview
Problem
Electronic gaming machines (EGMs) face challenges in securely maintaining access panels or slide-out trays due to the risk of inadvertent opening from vibration or impact, particularly when single-latch mechanisms are used, which can lead to damage from off-center loading and uneven unlatching.
Innovation Solution
Dual-latch mechanisms with simultaneous actuation and multiple-actuator systems featuring a common locking element that securely engage multiple points, reducing the risk of damage and uneven unlatching by allowing synchronized release of latches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single latch mechanism is used to secure access panels or doors, then the device complexity is reduced, but the reliability of securing the panel against vibration or impact is insufficient
Solution Approach 1:
The latch mechanism is divided into multiple independent latch elements (first latch and second latch) that operate simultaneously. Each latch engages with its corresponding strike independently, distributing the securing function across multiple points rather than relying on a single latch, thereby improving reliability without requiring a completely new complex system
Solution Approach 2:
Multiple latch mechanisms are combined into a single integrated assembly that is actuated by one common actuator. The actuator simultaneously triggers both latches to engage or disengage together, merging the control function while maintaining multiple securing points, thus improving reliability while keeping the overall device complexity manageable
2Strength
If a single latch point is used on access doors, then the ease of manufacture is improved, but the strength of securement against prying or twisting is insufficient
Solution Approach 1:
The securement function is segmented into multiple latch points spaced apart on the access panel. Each latch point provides independent engagement with its strike, creating multiple resistance points against prying or twisting forces. This segmentation of the securement function increases overall strength without requiring complex manufacturing of individual latch components
Solution Approach 2:
The latches are positioned at different locations (spaced apart) on the access panel, adding a spatial dimension to the securement. This distribution across multiple points in space creates resistance to rotational forces (prying/twisting) that a single centralized latch cannot provide, while each individual latch remains relatively simple to manufacture
3Reliability
If multiple latch points are used on access doors, then the reliability of securement is improved, but the device complexity increases
Solution Approach 1:
Multiple latch mechanisms are merged into a single integrated assembly that responds to one common actuator. The actuator simultaneously triggers both latches to engage or disengage together, merging the control function. This approach maintains multiple securing points for improved reliability while keeping the overall system complexity manageable through unified actuation
Solution Approach 2:
The common actuator serves multiple functions by simultaneously controlling both latch mechanisms. This multi-functionality allows a single component to perform the work of what would otherwise require separate actuators, reducing control complexity while maintaining multiple active latch points for enhanced reliability
4Reliability
If a single latch mechanism is used on slide-out trays, then the ease of operation is improved, but the reliability of preventing off-center loading damage is insufficient
Solution Approach 1:
The support function is segmented into multiple latches positioned at different locations on the slide-out tray. These latches distribute the support function across multiple points, preventing off-center loading damage by ensuring even support across the tray structure. Each latch remains a simple, easily operated component
Solution Approach 2:
Multiple latch mechanisms are combined into a single assembly actuated by one common actuator on the slide-out tray. This merging allows simultaneous engagement and disengagement of all latches with a single user action, maintaining ease of operation while the multiple latch points provide reliable damage prevention through distributed support
Data Source
AI summary
Dual-latch mechanisms are provided that allow two (or more) latches to be simultaneously released in response to a single input received via an actuator. Also disclosed are multiple-actuator systems with common locking elements that may simultaneously lock and unlock the multiple actuators via an input or inputs provided at a centralized location.