Pull-Out Refrigerated Goods Carrier With Universal Rail Adapter

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Solution Overview

Problem

The existing refrigeration appliances with telescopic extensions face challenges in maintaining stability and flexibility, leading to increased production costs due to the need for multiple types of telescopic rails with different space requirements, which complicates the design and manufacturing of refrigerated goods carriers for various models.

Innovation Solution

The use of two telescopic extensions with adapters that bridge the gap between the goods carrier and the rail, allowing for adjustable latching elements to secure the carrier without altering its shape, enabling the same adapter to be used on different rail lengths and configurations, and allowing for combined use of individual and connected telescopic extensions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If telescopic rails with three rails are used to achieve complete extraction of refrigerated goods carrier, then the freedom of movement and extraction capability is improved, but the manufacturing cost and device complexity increase significantly

Engineering Contradiction:

Improvefreedom of movement of refrigerated goods carrierVSAvoidnumber of rails in telescopic extension

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The telescopic extension is divided into multiple independent telescopic units, each consisting of two rails. These units can be connected in series to achieve the required total extraction distance without requiring each individual unit to have excessive freedom of movement, thus resolving the contradiction between extraction capability and structural complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple telescopic units with two rails each are nested or connected in series, where each unit contributes a portion of the total extraction distance. This nesting approach allows the system to achieve the functionality of a three-rail system while maintaining the simplicity and cost-effectiveness of two-rail units.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If different types of telescopic rails are used for different refrigeration appliance models, then the adaptability to various models is improved, but the production cost increases due to manufacturing multiple types of carriers

Engineering Contradiction:

Improvecompatibility with different refrigeration appliance modelsVSAvoidnumber of carrier types to be produced

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The adapter is designed as a universal component that can interface with different telescopic extension configurations (single unit or series-connected units). This universal adapter design allows the same refrigerated goods carrier to be used across multiple appliance models with different telescopic rail arrangements, eliminating the need to manufacture multiple carrier types.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The adapter serves as an intermediary component between the refrigerated goods carrier and the telescopic extension system. It provides a standardized interface that decouples the carrier design from the specific telescopic rail configuration, allowing carriers to be universally compatible across different appliance models while maintaining ease of manufacture.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the freedom of movement of telescopic rails is limited to maintain stability, then the structural stability is improved, but the extraction capability of refrigerated goods carrier is reduced

Engineering Contradiction:

Improvestability of telescopic rail suspensionVSAvoidextraction distance of refrigerated goods carrier

Core Design Contradiction:

Stability of the object's compositionVSEase of operation

Solution Approach 1:

The total extraction distance is segmented across multiple telescopic units connected in series. Each unit maintains limited freedom of movement for stability, while the cumulative effect of multiple units achieves the required total extraction distance, resolving the contradiction between individual unit stability and overall system extraction capability.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP1848942B1Refrigerating device with pull-out carrier for refrigerated goods

Publication Date: 2010.07.07 BSH HAUSGERATE GMBH

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AI summary

A carrier (5) for refrigerated goods can be moved in the cooling chamber (3) of a refrigerating device by means of two telescopic extensions (13). The carrier (5) for refrigerated good is held on each telescopic extension (13) by means of at least one adapter (19; 20) that bridges the space (47) between the carrier (5) for refrigerated goods and the telescopic extension (13), the width of the space (47) being at least equal to the width of the telescopic extension (13).