Door Arrangement With External Hinges For Collision Reduction
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Solution Overview
Problem
Security gates in high-traffic facilities like supermarkets face challenges in maximizing available passageway width, as every centimeter counts for space efficiency, and there is a need to reduce collisions between doors, doorframes, and shopping carts.
Innovation Solution
A door arrangement with hinges mounted on the door frame profile outside the opening, allowing the door to swing open and be positioned in the 'shade' of the door frame, reducing the likelihood of collisions and enhancing the welcoming feel for customers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the door is hinged inside the opening, then the door can be easily installed, but it reduces the available passageway width and increases collision risk
Solution Approach 1:
The hinge is relocated from the traditional inside-opening position to the outside-of-opening position on the door frame profile. This dimensional relocation allows the door to swing clear of the passageway, maximizing the available width for customer flow while eliminating collision risks with shopping carts.
2Productivity
If the door is positioned to maximize passageway width, then space efficiency improves, but the welcoming feel for customers decreases
Solution Approach 1:
The door is designed with an asymmetric body configuration where the first body portion (with hinges) and second body portion create different clearance characteristics when opened in opposite directions. This dynamic positioning allows the door to adaptively maximize passageway width in one direction while maintaining a welcoming appearance in the other direction, satisfying both space efficiency and customer experience requirements.
3Ease of manufacture
If the door body is symmetric, then manufacturing is simpler, but it cannot optimize passageway width in both opening directions
Solution Approach 1:
The door body is deliberately designed with asymmetric geometry, where the first body portion and second body portion have different dimensions and configurations. This asymmetry enables the door to optimize passageway width differently when opened in each direction, with the curved body portion positioned closer to the door frame to create optimal clearance patterns for bidirectional traffic flow.
Data Source
AI summary
A door arrangement including a door frame profile that defines an opening in a passageway. The door arrangement includes at least one door which is openable in opposite directions of the passageway, and which at least one door is suspended with one or more hinges from the door frame profile. The one or more hinges are mounted on the door frame profile outside the opening in the passageway.