Device for coordinated control and operation of double doors
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Solution Overview
Problem
Conventional mechanisms for controlling double doors are large, complex, and require many moving parts, leading to high wear and obstruction when fully open, and lack the ability for coordinated sequencing of door closure or opening.
Innovation Solution
A device with a plate connected to a linear motion facilitator and adjustable links that allows both doors to be opened or closed with one hand, featuring proper geometry to reduce stress on doors and hinges, and a low profile design that does not obstruct access when fully open.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional mechanisms are used to control double doors, then door operation is achieved, but the device becomes large, bulky, and obstructs access when doors are fully open
Solution Approach 1:
The patent repositions the control mechanism from a side-mounted conventional location to the top surface of the cabinet. This dimensional change allows the mechanism to have a low profile that does not obstruct access when doors are fully open, while still providing full door operation capability
Solution Approach 2:
Instead of mounting the mechanism on the side of the cabinet where it would protrude and obstruct access, the patent inverts the mounting approach by placing it on the top surface. This inversion eliminates the obstruction problem while maintaining operational functionality
2Ease of operation
If conventional mechanisms with many moving parts are used, then door control is achieved, but wear increases and reliability decreases
Solution Approach 1:
The patent extracts and eliminates unnecessary moving parts from the conventional mechanism. By using a simplified design with fewer components, the patent reduces wear points while maintaining the essential door control function
Solution Approach 2:
The mechanism is designed to be self-contained with integrated components that reduce the need for separate moving parts. The low-profile design inherently reduces wear by minimizing contact points and simplifying the mechanical linkage
3Ease of operation
If conventional mechanisms are used, then door operation is achieved, but the device becomes complex with many parts requiring replacement
Solution Approach 1:
The patent segments the door control function into essential components only, eliminating non-essential parts. This segmentation approach simplifies the overall device while maintaining operational capability
Solution Approach 2:
The mechanism is designed to perform multiple functions with a single integrated structure, reducing the total number of parts. The universal design handles both door operations without requiring separate specialized components
4Ease of operation
If conventional mechanisms are used, then door control is achieved, but sequencing of door closure or opening is not possible
Solution Approach 1:
The patent incorporates adjustable links that can be configured to provide different motion sequences. This dynamic adjustability allows the mechanism to sequence door opening and closing operations while maintaining ease of operation
Solution Approach 2:
The mechanism is designed to perform preliminary positioning and sequencing actions through its adjustable linkage system, enabling coordinated door operations before the actual opening or closing occurs
Data Source
AI summary
A device for coordinated control and operation of double doors having a plate with a rectilinear motion that is associated with links with adjustable lengths that connect the plate to the double doors, with both the first and the second doors opened when one of the doors is opened and sequentially closed when one of the doors is closed.