Aircraft Brake Disc Container With Stepped Central Support

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing containers are not adaptable to different types of heat sinks with varying internal diameters, leading to instability and potential damage during transportation.

Innovation Solution

A container with a central support featuring stepped seats at different heights, each adapted to cooperate with the annular surface of specific heat sinks, and a stabilizer to prevent disc slippage, allowing for secure handling of 20, 22, and 23-inch heat sinks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single-type container design is used for specific disc sizes, then the container provides stable support for that specific size, but it cannot adapt to different heat sink sizes (20, 22, or 23-inch discs)

Engineering Contradiction:

Improvecontainer adaptabilityVSAvoidcontainer design complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The container base is designed with a universal support structure that can accommodate multiple heat sink sizes (20, 22, and 23-inch discs) through a single standardized design, eliminating the need for multiple specialized container types while maintaining stable support for each size category

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If heat sinks are placed in containers with inadequate support adaptation, then the container structure remains simple, but the heat sinks become unstable and may deteriorate during transportation

Engineering Contradiction:

Improveheat sink stabilityVSAvoidsupport structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The support structure incorporates locally adapted features including conical surfaces with specific slopes matching disc chamfers, cylindrical surfaces for centering, and flat bearing surfaces, allowing each region of the support to provide optimized contact and stabilization for different heat sink types while maintaining overall structural integrity

Inventive Principle:

Principle #3Local quality

3Reliability

If heat sinks contact the support at minimal surfaces, then the support structure remains simple, but the contact surfaces are insufficient leading to disc deterioration and instability

Engineering Contradiction:

Improveheat sink stabilityVSAvoidcontact surface area

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The support structure utilizes curved conical surfaces that match the chamfered inner diameters of heat sink discs, providing extended annular contact surfaces rather than point or edge contact, thereby increasing the bearing area and distributing loads to prevent disc deterioration while maintaining structural simplicity

Inventive Principle:

Principle #14Spheroidality (Curvature)

Data Source

PatentEP2189374B1Container designed to receive a stack of brake discs, in particular aircraft brake discs

Publication Date: 2020.01.01 SAFRAN LANDING SYSTEMS

Figure 1~2
Figure 3~3A
Figure 4~13

AI summary

The container has a base carrying a central support (2) for equally receiving heat packs. The central support includes seats (30, 40, 50) that are staggered such that each seat receives one of the heat packs. Each seat is adapted to co-operate with an annular surface portion of the corresponding heat pack. The support presents notches defining a passage under the seats, and enabling a hoist tool to be inserted for lifting the heat pack.