Flexible Fast Door for Cargo Housing Sealing

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Solution Overview

Problem

Existing transportation housings face challenges in maintaining constant atmospheric conditions and preventing unauthorized access during loading and unloading, as rigid doors are cumbersome to operate and often remain open, exposing sensitive goods to environmental changes and security risks.

Innovation Solution

A housing with a motorized flexible fast door system that includes a flexible shutter with guiding rails, allowing for rapid and secure sealing and unsealing of the access opening, using a motorized driving mechanism to move the flexible shutter and integrating sensors for automatic operation based on presence detection or pre-set times.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a rigid door is used to seal the opening, then security and structural integrity are improved, but the door becomes cumbersome to open and close, leading to extended opening times and frequent remaining open during loading/unloading

Engineering Contradiction:
ImprovesecurityVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The door system is divided into two distinct parts: a rigid door for security and structural integrity, and a flexible fast door for rapid sealing. Each component serves its specific function, allowing the rigid door to remain secure while the flexible fast door provides quick access control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible fast door acts as an intermediary element between the rigid door and the opening. It provides rapid sealing capability without compromising the security function of the rigid door, effectively mediating between security requirements and operational efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the rigid door remains open during loading/unloading operations, then ease of operation is improved, but environmental conditions deteriorate and unauthorized access becomes possible

Engineering Contradiction:
Improveease of operationVSAvoidenvironmental changes
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The door system is divided into two distinct parts: a rigid door for security and structural integrity, and a flexible fast door for rapid sealing. Each component serves its specific function, allowing the rigid door to remain secure while the flexible fast door provides quick access control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible fast door acts as an intermediary element between the rigid door and the opening. It provides rapid sealing capability without compromising the security function of the rigid door, effectively mediating between security requirements and operational efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the rigid door is made more secure and robust, then reliability is improved, but the door becomes even more cumbersome to operate

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The door system is divided into two distinct parts: a rigid door for security and structural integrity, and a flexible fast door for rapid sealing. Each component serves its specific function, allowing the rigid door to remain secure while the flexible fast door provides quick access control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The flexible fast door acts as an intermediary element between the rigid door and the opening. It provides rapid sealing capability without compromising the security function of the rigid door, effectively mediating between security requirements and operational efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3253603B1Cargo transportation housing comprising a flexible fast door
Publication Date: 2021.03.24 ASSA ABLOY ENTRANCE SYST AB
  • EP3253603B1 patent drawingFigure 1(a)~1(f)
  • EP3253603B1 patent drawingFigure 2(a)~2(c)
  • EP3253603B1 patent drawingFigure 3(a)~3(c)

AI summary

The present invention concerns a housing (1) for the transportation of a cargo, such as truck trailers, housings mounted on the chassis of a truck, or shipping containers. The housing of the present invention comprises: (a) walls (1R) defining a closed inner space (1i), (b) an opening (2) provided in one of the walls, and further comprises a rigid door comprising one or more rigid panels (3) which are movable to seal or unseal said opening (2); (c) a flexible fast door comprising a motorized driving mechanism (10) suitable for moving a leading edge (4L) of a flexible shutter (4), wherein the flexible shutter (4) comprises two lateral edges engaged in parallel guiding rails (7) fixed to two parallel and opposite edges of the opening (2), wherein the rigid panel (3) and/or the parallel edge of the opening (2) is provided with a groove to accommodate the guiding rails (7).