Sliding Hinge Assembly for Service Access in Climate-Controlled Housings

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Solution Overview

Problem

Existing automated microbial detection apparatuses face challenges in accessing the interior for servicing and maintenance due to cumbersome door mechanisms that require significant manual effort and disrupt the climate-controlled environment.

Innovation Solution

The design incorporates sliding hinges with upper and lower linkage assemblies and a linear slide assembly, allowing the front housing member to slide straight out and pivot open, enabling easy access while maintaining a climate-controlled environment and minimizing manual effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional door mechanism is used for accessing the interior of the housing, then the housing can be opened for servicing, but significant manual effort is required and the climate-controlled environment is disrupted

Engineering Contradiction:

Improveease of access to interiorVSAvoidmanual effort required

Core Design Contradiction:

Ease of operationVSForce

Solution Approach 1:

The hinge assembly incorporates a spring mechanism that acts as a counterweight to balance the weight of the front housing member. The spring is configured to engage with the linkage system, providing mechanical assistance that reduces the manual force required to open and close the door. When the door is opened, the spring stores energy; when closed, it releases energy to assist the movement, effectively counteracting the gravitational force on the door.

Inventive Principle:

Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The hinge assembly transitions from a static connection to a dynamic system with movable linkages that adapt during operation. The linkage mechanism includes moving joints and a spring that actively adjust during door opening/closing, transforming the rigid door into a dynamically supported structure that requires less force to operate throughout its range of motion.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If a traditional door mechanism is used for accessing the interior of the housing, then the housing can be opened for servicing, but the climate-controlled environment is disrupted

Engineering Contradiction:

Improveease of access to interiorVSAvoiddisruption to climate-controlled environment

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The hinge assembly is pre-configured with alignment features and a controlled movement path that guides the door along a predetermined trajectory during opening and closing. This preliminary design ensures that the door moves smoothly and predictably, minimizing sudden movements that could disrupt the climate-controlled environment inside the housing.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The dynamic linkage system provides controlled, gradual movement of the door rather than abrupt opening/closing actions. The spring-assisted mechanism ensures smooth acceleration and deceleration throughout the door's travel, reducing turbulence and environmental disturbances within the housing interior during access operations.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If a sliding hinge mechanism is implemented, then access to the interior is improved with minimal manual effort, but the device complexity increases

Engineering Contradiction:

Improveease of access to interiorVSAvoidcomplexity of hinge mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The hinge assembly is segmented into distinct functional components: a fixed mounting bracket, a movable linkage system with joints, and a spring mechanism. This segmentation allows each component to perform its specific function independently while simplifying manufacturing, assembly, and maintenance. The modular design breaks down the complex door support function into manageable, interchangeable parts.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hinge assembly merges multiple functions into a single integrated mechanism: it combines door support, movement guidance, force reduction via spring assistance, and alignment control all within one linkage system. This consolidation reduces the need for separate mechanisms for each function, ultimately simplifying the overall structure despite the sophisticated operation.

Inventive Principle:

Principle #5Merging (Combining)

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

This solution allows for efficient access to the interior of the housing for maintenance and servicing with minimal disruption to the climate-controlled environment, reducing manual effort and improving operational efficiency.

Implementation Method 1

sliding hinges with upper and lower linkage assemblies and a linear slide assembly, allowing the front housing member to slide straight out and pivot open

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS9332842B2Sliding hinges and related methods and devices suitable for apparatus for automated evaluation of microorganism growth in test samples

Publication Date: 2016.05.10 BIOMERIEUX INC

AI summary

Devices and systems include housing members with sliding hinges that allow straight linear outward extension before allowing the front housing member to pivot open provide access to interiors for service using smaller footprints and/or without disrupting abutting instrument operation.