Double-Door Lock Assembly with Magnetic Linkage
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Solution Overview
Problem
Existing double-door lock assemblies require separate operation of each door and consume more space when doors open in opposite directions, making them inconvenient and inefficient.
Innovation Solution
A double-door lock assembly that uses magnetic attraction and a linkage mechanism to allow simultaneous or individual operation of both doors, enhancing cooperation reliability between locks through a system of rotary members, magnetic members, and a linkage member with a blocking and inclined guide surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate lock operations are used for first and second doors, then each door can be operated independently, but the operation convenience deteriorates and more space is required
Solution Approach 1:
The patent combines two separate lock operations into a single unified operation through the linkage mechanism. When the user operates one lock, the linkage member automatically transmits the rotational force to the other lock, enabling both doors to be opened or closed simultaneously with a single action, thereby significantly improving operation convenience while maintaining independent operation capability through the magnetic member engagement design
2Adaptability or versatility
If separate lock operations are used for first and second doors, then each door can be operated independently, but the space requirement increases
Solution Approach 1:
By merging the operation of both locks through the linkage mechanism, the patent enables coordinated door movement that reduces the total space required. When both doors are opened simultaneously through a single lock operation, they can be positioned more efficiently compared to sequential opening, thereby reducing the overall space footprint while maintaining flexible independent operation capability
3Reliability
If magnetic members are used to attract locks together, then cooperation reliability improves, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical coupling mechanisms with magnetic attraction between magnetic members. The magnetic force automatically engages and disengages the locks during operation, eliminating the need for additional mechanical connectors, springs, or cam mechanisms that would increase device complexity, while simultaneously improving reliability through consistent magnetic engagement
4Productivity
If a linkage member with blocking surface is used, then simultaneous rotation of rotary members is achieved, but the device complexity increases
Solution Approach 1:
The linkage member serves as a simple intermediary element that translates rotational motion from one rotary member to the other. The blocking surface on the linkage member provides a straightforward mechanical interface that enables simultaneous rotation without requiring complex gear systems, cam mechanisms, or multiple connecting components, thereby achieving high productivity with minimal added complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simultaneous or individual operation of both doors with improved reliability and reduced space requirements by utilizing magnetic attraction and a linkage mechanism to coordinate the operation of the locks.
Implementation Method 1
When the first and second magnetic members are attracted to each other and the linkage member is protruded from the accommodation hole, the driving portion contacts against the blocking surface of the linkage member such that the first and second rotary members are able to be rotated together
Data Source
AI summary
A double-door lock assembly includes a first lock and a second lock which are mounted to a first door and a second door, respectively. The first lock includes a first rotary member, a first magnetic member and a linkage member. The second lock includes a second rotary member having a driving portion and a second magnetic member. The first and second rotary members can be driven to rotate together to open or close the first and second doors simultaneously when the first and second magnetic members are attracted to each other and the driving portion on the second rotary member contacts against the linkage member on the first rotary member.